MedWorm: Nanotechnology

Nano-oils keep their cool

Nanotechweb.org Your News — Tue, 07 Feb 2012 15:04:15 +0100

(Source: Nanotechweb.org Your News)

MedWorm Sponsor Message: Find the best January Sales in the UK.

Effect of Mechanical Milling and Cold Pressing on Co Powder

Journal of Nanomaterials — Tue, 07 Feb 2012 14:50:03 +0100

Cold pressing (CP) of the amorphous-like Co powder suppressed most of the XRD peaks, in particular the peak along (100) plane. The DSC curve of unmilled CP Co powder has shown a distinct sharp exothermic peak at 615C°. Upon annealing at 700C°, only the FCC phase with lattice parameter of 3.51 Å was detected by XRD. Our results implied that the exotherm at 615C° corresponds to compaction-pressure-assisted HCP to FCC first-order phase transition. The XRD analysis of 30 h milled powder revealed for the first time the FCC phase with a=3.80 Å. However, due to presence of (100) and (210) peaks, this phase is thought to be FCT with lattice parameters a=b=3.80 and c=3.07 Å. Consequently, the high-energy milling carried out in the current work ind...

Are 100% Green Composites and Green Thermoplastics the New Materials for the Future?

Journal of Nanomaterials — Tue, 07 Feb 2012 14:50:03 +0100

A review of the history of the evolution of material science and material technology shows us that one tendency for the future could be the use of agriculture resources. In this work, we review the performances of one of these resources, that is, wheat flour. We show that it is possible to get thermoplastic films with properties quasiequivalent to what is obtained for expensive pure starch. By adding natural fibres, composites are also obtained. These composites exhibit performances which allow their use only for short duration. (Source: Journal of Nanomaterials)

Human Dirofilaria repens Infection in Romania: A Case Report

Journal of Nanomaterials — Tue, 07 Feb 2012 14:50:03 +0100

We present one of the few known cases of human dirofilariasis caused by D. repens in Romania. The patient developed unusual and severe clinical manifestations that mimicked pathological conditions like cellulitis or deep venous thrombosis. (Source: Journal of Nanomaterials)

The Effect of Microstructure on Stress-Strain Behaviour and Susceptibility to Cracking of Pipeline Steels

Journal of Nanomaterials — Tue, 07 Feb 2012 14:50:03 +0100

The effect of microstructure on the stress-strain behaviour of pipeline steels was studied. Slow strain rate (2×10-6 s-1) tests were conducted on grade X65 and X100 steels in silicone oil and hydrogen carbonate/carbonate solution. The as-received grade X100 steel at 75°C showed serrated stress-strain curves. The magnitude of the serrations depended upon the strain rate and test temperature. Annealing at 600°C or above removes the serrations, but this increased the susceptibility to transgranular cracking in hydrogen carbonate/carbonate solution at potentials below −800 mV (sce). The removal and reformation of banding in pipeline steels were also studied. Ferrite/pearlite becomes aligned during the hot rolling stage of pipe manufacture and causes directionality...

Effect of PGC-1α on Proliferation, Migration, and Transdifferentiation of Rat Vascular Smooth Muscle Cells Induced by High Glucose

Journal of Nanomaterials — Tue, 07 Feb 2012 14:50:03 +0100

We assessed the role of PGC-1α (PPARγ coactivator-1 alpha) in glucose-induced proliferation, migration, and inflammatory gene expression of vascular smooth muscle cells (VSMCs). We carried out phagocytosis studies to assess the role of PGC-1α in transdifferentiation of VSMCs by flow cytometry. We found that high glucose stimulated proliferation, migration and inflammatory gene expression of VSMCs, but overexpression of PGC-1α attenuated the effects of glucose. In addition, overexpression of PGC-1α decreased mRNA and protein level of VSMCs-related genes, and induced macrophage-related gene expression, as well as phagocytosis of VSMCs. Therefore, PGC-1α inhibited glucose-induced proliferation, migration and inflammatory gene expression of VSMCs, which are...

MedWorm Sponsor Message: Please support the Doctors In Chains campaign for the medics tortured and sentenced for up to 15 years in Bahrain. #FreeDoctors

Primary Cutaneous Melanoma Arising in a Long-Standing Irradiated Keloid

Journal of Nanomaterials — Tue, 07 Feb 2012 14:50:03 +0100

We describe a case in which a primary desmoplastic melanoma arose in a long-standing, previously irradiated keloid. (Source: Journal of Nanomaterials)

Prevalence of Mental Disorders and Profile of Disablement among Primary Health Care Service Users in Lagos Island

Journal of Nanomaterials — Tue, 07 Feb 2012 14:50:03 +0100

Conclusion. These findings are a useful guide to the probable prevalence of psychiatric morbidity in primary care in Nigeria and in the design of appropriate interventions. (Source: Journal of Nanomaterials)

Pleomorphic Adenoma of the Cervical Heterotopic Salivary Gland: A Case Report

Journal of Nanomaterials — Tue, 07 Feb 2012 14:50:03 +0100

Conclusion. Pleomorphic adenoma may be rarely involving the neck. Although the prognosis is good, the choice treatment is the complete resection of the tumor. (Source: Journal of Nanomaterials)

The second generation Singapore high resolution proton beam writing facility

Review of Scientific Instruments — Tue, 07 Feb 2012 01:08:28 +0100

J. A. van Kan, P. Malar, and Armin Baysic de Vera A new proton beam focusing facility, designed for proton beam writing (PBW) applications has been tested. PBW allows for proximity free structuring of high aspect ratio, high-density 3D nanostructures. The new facility is designed around OM52 compact quadrupole lenses capable of operating in a varie ... [Rev. Sci. Instrum. 83, 02B902 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)

Surface area controlled heterogeneous nucleation

Journal of Chemical Physics — Tue, 07 Feb 2012 01:08:27 +0100

Brian Steer, Boris Gorbunov, Jonathan Rowles, and David Green Heterogeneous nucleation of liquid from a gas phase on nanoparticles has been studied under various saturation ratios and nuclei size. The probability of liquid droplet nucleation, especially at a low degree of deviation from equilibrium, was measured for both atmospheric aerosol particles and engin ... [J. Chem. Phys. 136, 054704 (2012)] published Mon Feb 6, 2012. (Source: Journal of Chemical Physics)

MedWorm Sponsor Message: Find the best January Sales in the UK.

Conformational properties of macromolecular pyramoids and their potential use as nano-containers

Journal of Chemical Physics — Tue, 07 Feb 2012 01:08:27 +0100

M. Kosmas and P. Efthymiopoulos We study the macroscopic behavior of a pyramid-like nano-construct made of linear macromolecular chains. The average mean square end-to-end distances of the six edges of the pyramoid are evaluated by means of the Gaussian chain model and are found smaller than those of free chains because of archite ... [J. Chem. Phys. 136, 054905 (2012)] published Mon Feb 6, 2012. (Source: Journal of Chemical Physics)

Effect of P addition on nanocrystallization and high temperature magnetic properties of low B and Nb containing FeCo nanocomposites

Journal of Applied Physics — Tue, 07 Feb 2012 01:08:27 +0100

Rajat K. Roy, S. Shen, S. J. Kernion, and M. E. McHenry The P content dependencies of the nanocrystallization behaviors and high temperature magnetic properties of the FeCoSi(BP)NbCu (Y = 0, 0.2, and 0.3) alloys have been investigated. Alloys were prepared by melt spinning and subsequently annealed in an argon atmosphere to induce nanocrystallization. P ... [J. Appl. Phys. 111, 07A301 (2012)] published Mon Feb 6, 2012. (Source: Journal of Applied Physics)

Nanometer size effects on magnetic order in LaCaMnO (x = 0.5 and 0.6) manganites, probed by ferromagnetic resonance

Journal of Applied Physics — Tue, 07 Feb 2012 01:08:27 +0100

A. I. Shames, E. Rozenberg, E. Sominski, and A. Gedanken The data on X-band ferromagnetic resonance (FMR) in the half and electron-doped LaCaMnO (Ca0.5) and LaCaMnO (Ca0.6) nano-crystals and bulk ceramics are reported. The FMR data for considered nano-samples appeared to be strongly different, reflecting a difference in their magnetic/electronic order. An ... [J. Appl. Phys. 111, 07D701 (2012)] published Mon Feb 6, 2012. (Source: Journal of Applied Physics)

Physical, electrical and magnetic properties of nano-sized Co-Cr substituted magnesium ferrites

Journal of Applied Physics — Tue, 07 Feb 2012 01:08:27 +0100

Muhammad Javed Iqbal, Zahoor Ahmad, Turgut Meydan, and Yevgen Melikhov Co-Cr substituted magnesium ferrite nanomaterials (MgCoCrFeO with x = 0.00.5) have been prepared by the polyethylene glycol assisted micro emulsion method. X-ray diffraction analysis confirms the single-phase cubic close-packed lattice formation of synthesized materials. Hysteresis loops are measure ... [J. Appl. Phys. 111, 033906 (2012)] published Mon Feb 6, 2012. (Source: Journal of Applied Physics)

Schottky barrier control gate-type carbon nanotube field-effect transistor biosensors

Journal of Applied Physics — Tue, 07 Feb 2012 01:08:27 +0100

Masuhiro Abe, Yasuhide Ohno, and Kazuhiko Matsumoto We propose a unique structure for carbon nanotube field-effect transistors (CNT-FETs/with a Schottky barrier control gate (SBC gate) to improve the sensitivity of CNT-FET biosensors. The performance of the new biosensors was compared with conventional devices with back gate-type CNT-FETs both throug ... [J. Appl. Phys. 111, 034506 (2012)] published Mon Feb 6, 2012. (Source: Journal of Applied Physics)

MedWorm Sponsor Message: Please support the Doctors In Chains campaign for the medics tortured and sentenced for up to 15 years in Bahrain. #FreeDoctors

Electrical properties of individual NiFe/Pt multilayer nanowires measured in situ in a scanning electron microscope

Journal of Applied Physics — Tue, 07 Feb 2012 01:08:27 +0100

Mohamed Elawayeb, Yong Peng, Kevin J. Briston, and Beverley J. Inkson The electrical properties of individual NiFe/Pt multilayer nanowires have been measured in situ by nanomanipulators in a scanning electron microscope. The electrical measurement of ~50 nm diameter individual NiFe/Pt multilayer nanowires with polycrystalline microstructure shows that the nanowires ha ... [J. Appl. Phys. 111, 034306 (2012)] published Mon Feb 6, 2012. (Source: Journal of Applied Physics)

Self-aligned lateral dual-gate suspended-body single-walled carbon nanotube field-effect transistors

Applied Physics Letters — Tue, 07 Feb 2012 01:07:24 +0100

Ji Cao and Adrian M. Ionescu Self-aligned lateral dual-gate suspended-body single-walled carbon nanotube (CNT) field-effect transistors (CNFETs) have been demonstrated. A nano-precision assembly method using resist-assisted ac-dielectrophoresis is applied. Superior I-V characteristics controlled by two independent lateral gates ... [Appl. Phys. Lett. 100, 063103 (2012)] published Mon Feb 6, 2012. (Source: Applied Physics Letters)

Thermal and structural dependence of the band gap of quantum dots measured by a transparent film heater

Applied Physics Letters — Tue, 07 Feb 2012 01:07:24 +0100

We report the temperature dependence of the optical absorption and emission spectra of quantum dots (QDs) for three different nanocrystal (NC) structures (CdSe core, CdSe/CdS core/shell, and CdSe/CdS/ZnS core/multishell) in the solid film state. For this, a transparent single-walled carbon nanotube ... [Appl. Phys. Lett. 100, 063105 (2012)] published Mon Feb 6, 2012. (Source: Applied Physics Letters)

Entropy change linked to the magnetic field induced Morin transition in Hematite nanoparticles

Applied Physics Letters — Tue, 07 Feb 2012 01:07:24 +0100

J. M. Pastor, J. I. Perez-Landazabal, C. Gomez-Polo, V. Recarte, S. Larumbe et al. The most stable form of iron oxide is Hematite (alpha-FeO), which has interesting electronic, catalytic, and magnetic properties showing size dependent characteristics. At room temperature, Hematite is weakly ferromagnetic with a rhombohedral corundum structure. Upon cooling, the structure undergoes ... [Appl. Phys. Lett. 100, 063102 (2012)] published Mon Feb 6, 2012. (Source: Applied Physics Letters)

Manganese dioxide modified silicon nanowires and their excellent catalysis in the decomposition of methylene blue

Applied Physics Letters — Tue, 07 Feb 2012 01:07:24 +0100

Weiwei Gao, Mingwang Shao, Li Yang, Shujuan Zhuo, Shiyong Ye et al. A redox between hydrofluoric acid and ammonium fluoride-treated silicon nanowires and potassium permanganate solution was investigated. The results showed that MnO nanoparticles might grow on the surface of silicon nanowires, which was confirmed with the transmission electron microscope. These MnO m ... [Appl. Phys. Lett. 100, 063104 (2012)] published Mon Feb 6, 2012. (Source: Applied Physics Letters)

MedWorm Sponsor Message: Find the best January Sales in the UK.

Ultrafast laser-induced microstructure/nanostructure replication and optical properties

Applied Optics — Tue, 07 Feb 2012 01:06:10 +0100

This paper demonstrates replication of ultrafast laser-induced micro/nano surface textures on poly(dimethylsiloxane) (PDMS). The surface texture replication process reduces the processing steps for microtexturing while improving light trapping. Two methods are demonstrated to replicate surface ... (Source: Applied Optics)

Performance improvement in a directly 879 nm dual-end-π-polarized-pumped CW and pulsed GdVO_4/Nd:GdVO_4 laser

Applied Optics — Tue, 07 Feb 2012 01:06:10 +0100

A continuous-wave and Q-switched 10 kHz GdVO_4/Nd:GdVO_4 laser by 879 nm laser-diode pumping was demonstrated. We combined dual-end-π-polarized-pumping, half-wave plate (HWP) insertion, composite laser crystals, and dual Q-switching techniques to obtain a 1.06 μm nanosecond laser with ... (Source: Applied Optics)

Challenges for futuristic nanomedical detection, diagnosis and treatment.

Yakugaku Zasshi : Journal of the Pharmaceutical Society of Japan — Mon, 06 Feb 2012 21:06:03 +0100

Authors: Ojida A, Kato M PMID: 22293697 [PubMed - in process] (Source: Yakugaku Zasshi : Journal of the Pharmaceutical Society of Japan)

Development of photodegradable nanoparticle for phototherapy.

Yakugaku Zasshi : Journal of the Pharmaceutical Society of Japan — Mon, 06 Feb 2012 21:06:03 +0100

Authors: Kato M Abstract Proteins have several remarkable advantages over conventional chemical catalysts. For these reasons, proteins are widely used in many fields. We have developed a hydrogel-based protein immobilization scheme that allows proteins to maintain their activity for a long period of time. Recently, we developed a photodegradable hydrogel and used it to control the biological activities of proteins. Protein activity is restricted when the protein is encapsulated within the gel, and the activity is restored when the protein is released from the gel by UV irradiation. It is expected that the drug delivery using the photodegradable hydrogel and phototherapy is a good combination for therapy of psoriasis vulgaris. PMID: 22293700 [PubMed - in process] (Source: Yakuga...

Development of bioanalytical techniques using micro- and nanostructures for medical applications.

Yakugaku Zasshi : Journal of the Pharmaceutical Society of Japan — Mon, 06 Feb 2012 21:06:03 +0100

Authors: Kaji N Abstract Micro- and nanobiodevices, which utilize micro- and nanospace corresponding in size to various biomolecules, are currently accelerating research on medical diagnosis and regenerative medicine. Moreover, novel analytical techniques beyond the past limitations are developed utilizing micro- and nanospace and are achieving an innovation from basic research to clinical diagnosis and therapy. We have developed nanopillar and nanowall array structures for a single molecule measurement and separation sciences, and then, demonstrated unique analytical techniques specific to a precisely defined nanospace. Physicochemical and biological approaches were adopted to understand nanofluidics in these nanospaces and interesting phenomena were found. We are also trying to t...

MedWorm Sponsor Message: Please support the Doctors In Chains campaign for the medics tortured and sentenced for up to 15 years in Bahrain. #FreeDoctors

New insights into the molecular mechanisms of lymphangiogenesis and pathophysiology.

Yakugaku Zasshi : Journal of the Pharmaceutical Society of Japan — Mon, 06 Feb 2012 21:06:03 +0100

Authors: Hirakawa S Abstract Lymphatic vessels play crucial roles in transporting tissue fluid and macromolecules, and in promoting tissue immune response. Recent studies have identified new lymphatic vessel growth in pathological conditions such as cancer progression. In fact, our experimental animal models revealed that tumors can induce lymphangiogenesis not only in primary sites, but in their draining lymph nodes (LNs), even before tumors get metastasized. In fact, lymphangiogenesis in draining lymph nodes leads to increased cancer spread to distant LNs and beyond. Importantly, we very recently identified that nodal lymphangiogenesis occurs in human skin cancers, and plays a significant role in promoting distant metastases resulting in reduced patient survival. Therefore, lymph...

Anti-glycation Effect of Gold Nanoparticles on Collagen.

Biological and Pharmaceutical Bulletin — Mon, 06 Feb 2012 19:48:04 +0100

Authors: Kim JH, Hong CO, Koo YC, Choi HD, Lee KW Abstract Gold nanoparticles (GNPs) have been reported to exhibit a variety of biological effects including anti-inflammatory and anti-oxidant activities. The extent of an in vitro glycation reaction mixture of collagen and glycolaldehyde was assayed to investigate the inhibition of glycolaldehye-derived advanced glycation end products (glycol-AGEs) formation with GNPs in collagen, which is a major protein component of the human dermis. GNP-treated collagen showed significantly less glycation (56.3±4.2%) than an untreated glycation control. Moreover, GNP-treated glycation in a collagen lattice model significantly decreased the AGEs distribution in the model system. Taken together, these results suggest that GNPs have the potential f...

Nano-mechanical properties of clay-armoured emulsion droplets

RSC - Soft Matter latest articles — Mon, 06 Feb 2012 17:38:28 +0100

Soft Matter, 2012, Advance ArticleDOI: 10.1039/C2SM07370F, PaperSin-Ying Tan, Rico F. Tabor, Lydia Ong, Geoffrey W. Stevens, Raymond R. DagastineThe mechanical response of clay-armoured emulsion droplets was measured using a combined AFM-confocal microscope with changes in pH, ionic strength and surfactant concentration.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Soft Matter latest articles)

Assembly of nano-particles on diblock copolymer brushes: toward laterally nano-structured composites

RSC - Soft Matter latest articles — Mon, 06 Feb 2012 17:38:28 +0100

Soft Matter, 2012, Advance ArticleDOI: 10.1039/C2SM07362E, PaperOlga A. Guskova, Christian SeidelTailored nano-particle organisation on diblock copolymer brushes was demonstrated by DPD simulations.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Soft Matter latest articles)

Thermoelectric properties of nanocomposite thin films prepared with poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) and graphene

RSC - Phys. Chem. Chem. Phys. latest articles — Mon, 06 Feb 2012 17:38:27 +0100

Phys. Chem. Chem. Phys., 2012, Advance ArticleDOI: 10.1039/C2CP23517J, PaperGil Ho Kim, Deok Hyun Hwang, Seong Ihl WooHigh performance thermoelectric (PEDOT : PSS) : graphene nanocomposite thin films were fabricated with a small amount of graphene. This ZT value is the larger than that of pristine PEDOT : PSS thin film by 10 times.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Phys. Chem. Chem. Phys. latest articles)

MedWorm Sponsor Message: Find the best January Sales in the UK.

Control of nitrogen insertion during the growth of nitrogen-containing carbon nanofibers on cordierite monolith walls

RSC - Phys. Chem. Chem. Phys. latest articles — Mon, 06 Feb 2012 17:38:27 +0100

Phys. Chem. Chem. Phys., 2012, Advance ArticleDOI: 10.1039/C2CP23609E, PaperLaura Roldan, Sabino Armenise, Yanila Marco, Enrique Garcia-BordejeCordierite monolith walls have been coated with a layer of nitrogen-containing carbon nanofibers of tailored nitrogen content and type.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Phys. Chem. Chem. Phys. latest articles)

Ionic liquids in confined geometries

RSC - Phys. Chem. Chem. Phys. latest articles — Mon, 06 Feb 2012 17:38:27 +0100

Phys. Chem. Chem. Phys., 2012, Advance ArticleDOI: 10.1039/C2CP23814D, PerspectiveSusan PerkinIonic liquids are confined to nanoscopic geometries in applications from solar cells to lubrication. This Perspective surveys and discusses recent high-resolution measurements which reveal the liquid structure and dynamics in pores and thin films.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Phys. Chem. Chem. Phys. latest articles)

Method/basis set dependence of NICS values among metallic nano-clusters and hydrocarbons

RSC - Phys. Chem. Chem. Phys. latest articles — Mon, 06 Feb 2012 17:38:27 +0100

Phys. Chem. Chem. Phys., 2012, Advance ArticleDOI: 10.1039/C2CP23205G, PaperZahra Badri, Cina Foroutan-Nejad, Parviz Rashidi-RanjbarNICS shows a considerable method/basis set dependence among metallic clusters; the bond length has only a minor effect on NICS.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Phys. Chem. Chem. Phys. latest articles)

Analytical methods for separating and isolating magnetic nanoparticles

RSC - Phys. Chem. Chem. Phys. latest articles — Mon, 06 Feb 2012 17:38:27 +0100

This article highlights the need for and current status of methods for separation and purification of magnetic nanomaterials.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Phys. Chem. Chem. Phys. latest articles)

Composite silica nanospheres covalently anchored with gold nanoparticles at the outer periphery of thermoresponsive polymer brushes

RSC - J. Mater. Chem. latest articles — Mon, 06 Feb 2012 17:38:26 +0100

J. Mater. Chem., 2012, Advance ArticleDOI: 10.1039/C2JM15530C, PaperTao Wu, Qianqian Zhang, Jinming Hu, Guoying Zhang, Shiyong LiuComposite silica nanospheres anchored with gold nanoparticles of tunable spatial distribution at the periphery of thermoresponsive polymer brushes were fabricated.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)

MedWorm Sponsor Message: Please support the Doctors In Chains campaign for the medics tortured and sentenced for up to 15 years in Bahrain. #FreeDoctors

Synergistic catalysis of Au-Co@SiO2 nanospheres in hydrolytic dehydrogenation of ammonia borane for chemical hydrogen storage

RSC - J. Mater. Chem. latest articles — Mon, 06 Feb 2012 17:38:26 +0100

J. Mater. Chem., 2012, Advance ArticleDOI: 10.1039/C2JM14787D, PaperZhang-Hui Lu, Hai-Long Jiang, Mahendra Yadav, Kengo Aranishi, Qiang XuCompared with their monometallic counterparts, Au-Co@SiO2 nanospheres exhibit superior catalytic performance for the hydrolytic dehydrogenation of ammonia borane.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)

A facile route to carbide-based electrocatalytic nanocomposites

RSC - J. Mater. Chem. latest articles — Mon, 06 Feb 2012 17:38:26 +0100

J. Mater. Chem., 2012, Advance ArticleDOI: 10.1039/C2JM15558C, PaperZaoxue Yan, Hui Meng, Pei Kang Shen, Ruihong Wang, Lei Wang, Keying Shi, Honggang FuAn electrocatalytic nanocomposite prepared by a green route shows high activity for methanol oxidation.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)

Synthesis of calcium phosphate/GPC-mPEG hybrid porous nanospheres for drug delivery to overcome multidrug resistance in human breast cancer

RSC - J. Mater. Chem. latest articles — Mon, 06 Feb 2012 17:38:26 +0100

J. Mater. Chem., 2012, Advance ArticleDOI: 10.1039/C2JM15586A, PaperYing Sun, Xiao-Yan Chen, Ying-Jie Zhu, Pei-Feng Liu, Ming-Jie Zhu, You-Rong DuanCaP/GPC-mPEG nanospheres were prepared by a facile room-temperature method and employed as carriers to deliver mitoxantrone as well as to overcome multidrug resistance.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)

Temporally and spatially controlled silicification for self-generating polymer@silica hybrid nanotube on substrates with tunable film nanostructure

RSC - J. Mater. Chem. latest articles — Mon, 06 Feb 2012 17:38:26 +0100

J. Mater. Chem., 2012, Advance ArticleDOI: 10.1039/C2JM15993G, PaperJian-Jun Yuan, Ren-Hua JinA new one-step process to hybrid nanotubes via directly incorporating a polymer template into the growing silica wall was demonstrated.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)

Needle-like polyaniline nanowires on graphite nanofibers: hierarchical micro/nano-architecture for high performance supercapacitors

RSC - J. Mater. Chem. latest articles — Mon, 06 Feb 2012 17:38:26 +0100

J. Mater. Chem., 2012, Advance ArticleDOI: 10.1039/C2JM15668G, PaperShuijian He, Xiaowu Hu, Shuiliang Chen, Huan Hu, Muddasir Hanif, Haoqing HouOrdered polyaniline nanowires were grown on graphitized electrospun fibers to prepare flexible PANI/GECF cloths with hierarchical micro/nano-architecture for supercapacitors.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)

MedWorm Sponsor Message: Find the best January Sales in the UK.

The mechanics of nanometre-sale molecular contacts

RSC - Faraday Discuss. latest articles — Mon, 06 Feb 2012 17:38:24 +0100

Faraday Discuss., 2012, Accepted ManuscriptDOI: 10.1039/C2FD00133K, PaperKaterina Busuttil, Nikolaos Nikogeorgos, Zhenyu Zhang, Mark Geoghegan, Christopher A Hunter, Graham LeggettThe adhesive interactions and friction-load relationships have been investigated in liquid mixtures. For hydrogen bond-forming monolayers in acetone-heptane mixtures a linear friction-load relationship is observed at compositions that yield extensive...The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Faraday Discuss. latest articles)

Coordination Bonding Based pH-Responsive Albumin Nanoparticles for Anticancer Drug Delivery

RSC - Dalton Trans. latest articles — Mon, 06 Feb 2012 17:38:24 +0100

Dalton Trans., 2012, Accepted ManuscriptDOI: 10.1039/C2DT30226H, PaperShunai Che, Chenguang Li, Lei XingZn-loaded bovine serum albumin nanoparticles (Zn-BSA nanoparticles) were prepared and used as carriers for pH-responsive anticancer drug delivery. Zinc was introduced into this system to increase the stability of BSA...The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Dalton Trans. latest articles)

Stabilisation of water-soluble platinum nanoparticles by phosphonic acid derivatives

RSC - Dalton Trans. latest articles — Mon, 06 Feb 2012 17:38:24 +0100

Dalton Trans., 2012, Advance ArticleDOI: 10.1039/C2DT12071B, PaperMareike Richter, Arndt Karschin, Bernhard Spingler, Peter C. Kunz, Wolfgang Meyer-Zaika, Wolfgang Klaui3,3,3-Triphenylpropyl phosphonate - a molecule designed not to stabilise platinum nanoparticles - does it?To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Dalton Trans. latest articles)

Solvothermal synthesis of monodisperse nanocrystals

RSC - Dalton Trans. latest articles — Mon, 06 Feb 2012 17:38:24 +0100

Dalton Trans., 2012, Advance ArticleDOI: 10.1039/C2DT11842D, PerspectiveBiao Xu, Xun WangRecent progresses in solvo-thermal synthesis and applications of monodisperse nanocrystals are briefly reviewed.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Dalton Trans. latest articles)

Controlled synthesis of nanocrystalline Li2MnSiO4 particles for high capacity cathode application in lithium-ion batteries

RSC - Chem. Commun. latest articles — Mon, 06 Feb 2012 17:38:22 +0100

Chem. Commun., 2012, Advance ArticleDOI: 10.1039/C2CC17234H, CommunicationDevaraju M. Kempaiah, Dinesh Rangappa, Itaru HonmaHigh-quality Li2MnSiO4 cathode material was synthesized by a rapid supercritical method and high discharge capacity was obtained for PEDOT/Li2MnSiO4.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Chem. Commun. latest articles)

MedWorm Sponsor Message: Please support the Doctors In Chains campaign for the medics tortured and sentenced for up to 15 years in Bahrain. #FreeDoctors

A versatile platform for highly sensitive detection of protein: DNA enriching magnetic nanoparticles based rolling circle amplification immunoassay

RSC - Chem. Commun. latest articles — Mon, 06 Feb 2012 17:38:22 +0100

Chem. Commun., 2012, Advance ArticleDOI: 10.1039/C2CC18007C, CommunicationQingwang Xue, Lei Wang, Wei JiangSchematic representation of the process of magnetic nanoparticles-RCA immunoassay.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Chem. Commun. latest articles)

Rapid and on-site analysis of illegal drugs on the nano-microscale using a deep ultraviolet-visible reflected optical fiber sensor

RSC - Analyst latest articles — Mon, 06 Feb 2012 17:38:21 +0100

Analyst, 2012, Advance ArticleDOI: 10.1039/C2AN15953H, PaperQiang Li, Tian Qiu, Hongxia Hao, Hong Zhou, Tongzhou Wang, Ye Zhang, Xin Li, Guoliang Huang, Jing ChengA spectrophotometric system and a novel MASS algorithm were established for the rapid and on-site analysis of common illegal drugs.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Analyst latest articles)

Colorimetric sensing of trace UO22+ by using nanogold-seeded nucleation amplification and label-free DNAzyme cleavage reaction

RSC - Analyst latest articles — Mon, 06 Feb 2012 17:38:21 +0100

Analyst, 2012, Accepted ManuscriptDOI: 10.1039/C2AN00039C, PaperZhi-Liang JiangIn pH 4.4 HAC-NaAC buffer solution at 80[degree]C, nanogold particles (NG) strongly enhanced the slow colored reaction of Ag(I)-gallic acid to form nanosilver particles, which exhibited a strong surface plasmon...The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Analyst latest articles)

Peroxidase-Like Activity of Water-Soluble Cupric Oxide Nanoparticles and Its Analytical Application for Detection of Hydrogen Peroxide and Glucose

RSC - Analyst latest articles — Mon, 06 Feb 2012 17:38:21 +0100

Analyst, 2012, Accepted ManuscriptDOI: 10.1039/C2AN35072F, PaperWei Chen, Juan Chen, Ye-Bin Feng, Lei Hong, Qi-Ying Chen, Ling-Feng Wu, Xin-Hua Lin, Xinghua XiaWater-soluble cupric oxide nanoparticles are fabricated via a quick-precipitation method and used as peroxidase mimetics for ultrasensitive detection of hydrogen peroxide and glucose. The water-soluble CuO nanoparticles show much higher...The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Analyst latest articles)

Easy-To-Use Protein Drugs

Chemical and Engineering News — Mon, 06 Feb 2012 17:10:46 +0100

Drug Delivery: Nanoclusters enable injectable suspensions of proteins (Source: Chemical and Engineering News)

MedWorm Sponsor Message: Find the best January Sales in the UK.

Engineers weld nanowires with light

ScienceDaily Headlines — Mon, 06 Feb 2012 14:26:26 +0100

At the nano level, researchers have discovered a new way to weld together meshes of tiny wires. Their work could lead to exciting new electronics and solar applications. To succeed, they called upon plasmonics. (Source: ScienceDaily Headlines)

Fe2O3/TiO2 Tube-like Nanostructures: Synthesis, Structural Transformation and the Enhanced Sensing Properties

ACS Applied Materials and Interfaces — Mon, 06 Feb 2012 14:10:22 +0100

ACS Applied Materials & InterfacesDOI: 10.1021/am201689x (Source: ACS Applied Materials and Interfaces)

Incorporation of MnO2-Coated Carbon Nanotubes between Graphene Sheets as Supercapacitor Electrode

ACS Applied Materials and Interfaces — Mon, 06 Feb 2012 13:57:44 +0100

ACS Applied Materials & InterfacesDOI: 10.1021/am2016848 (Source: ACS Applied Materials and Interfaces)

Nanostructured Diamine–Fullerene Derivatives: Computational Density Functional Theory Study and Experimental Evidence for their Formation via Gas-Phase Functionalization

Journal of Physical Chemistry A — Mon, 06 Feb 2012 12:47:08 +0100

The Journal of Physical Chemistry ADOI: 10.1021/jp211577k (Source: Journal of Physical Chemistry A)

Activity, Selectivity, and Anion-Exchange Membrane Fuel Cell Performance of Virtually Metal-Free Nitrogen-Doped Carbon Nanotube Electrodes for Oxygen Reduction Reaction

The Journal of Physical Chemistry C — Mon, 06 Feb 2012 12:41:11 +0100

The Journal of Physical Chemistry CDOI: 10.1021/jp210840a (Source: The Journal of Physical Chemistry C)

MedWorm Sponsor Message: Please support the Doctors In Chains campaign for the medics tortured and sentenced for up to 15 years in Bahrain. #FreeDoctors

Novel Polypropylene/Inorganic Fullerene-like WS2 Nanocomposites Containing a β-Nucleating Agent: Isothermal Crystallization and Melting Behavior

Journal of Physical Chemistry B — Mon, 06 Feb 2012 12:40:17 +0100

The Journal of Physical Chemistry BDOI: 10.1021/jp2099703 (Source: Journal of Physical Chemistry B)

Molecular golems

Nature Nanotechnology — Mon, 06 Feb 2012 05:00:00 +0100

Nature Nanotechnology 7, 86 (2012). doi:10.1038/nnano.2012.12 (Source: Nature Nanotechnology)

Topological insulators: The surface surfaces

Nature Nanotechnology — Mon, 06 Feb 2012 05:00:00 +0100

Authors: Judy J. Cha & Yi Cui Circularly polarized light can isolate surface states from bulk states in topological insulators, allowing their unique properties to be probed. (Source: Nature Nanotechnology)

Nanoelectronics: Ferroelectric devices show potential

Nature Nanotechnology — Mon, 06 Feb 2012 05:00:00 +0100

Nature Nanotechnology 7, 83 (2012). doi:10.1038/nnano.2012.10 Author: Adrian M. Ionescu Ferroelectric tunnel junctions can be operated as non-volatile memories with low write powers. (Source: Nature Nanotechnology)

Thermal materials: Pulling together to control heat flow

Nature Nanotechnology — Mon, 06 Feb 2012 05:00:00 +0100

Nature Nanotechnology 7, 82 (2012). doi:10.1038/nnano.2012.4 Author: Chris Dames The thermal conductivity of pairs of boron nanoribbons can be switched between high and low values by wetting the interface between the nanoribbons with various solutions. (Source: Nature Nanotechnology)

MedWorm Sponsor Message: Find the best January Sales in the UK.

Nanopores: Tiny holes with great promise

Nature Nanotechnology — Mon, 06 Feb 2012 05:00:00 +0100

Nature Nanotechnology 7, 81 (2012). doi:10.1038/nnano.2012.11 Author: Dario Anselmetti Sensors that combine solid-state nanopores and nanowire field-effect transistors can be used to detect single DNA molecules quickly and with high sensitivity. (Source: Nature Nanotechnology)

Our choice from the recent literature

Nature Nanotechnology — Mon, 06 Feb 2012 05:00:00 +0100

Nature Nanotechnology 7, 79 (2012). doi:10.1038/nnano.2012.13 (Source: Nature Nanotechnology)

The complexity of public engagement

Nature Nanotechnology — Mon, 06 Feb 2012 05:00:00 +0100

Nature Nanotechnology 7, 77 (2012). doi:10.1038/nnano.2012.5 Author: Craig Cormick (Source: Nature Nanotechnology)

A direct detection of Escherichia coli genomic DNA using gold nanoprobes

Journal of Nanobiotechnology — Mon, 06 Feb 2012 05:00:00 +0100

Conclusion: This work gives entry into a new class of DNA/gold nanoparticles hybrid materials which might have optical property that can be controlled for application in diagnostics. We note that it should be possible to extend this strategy easily for developing new types of DNA biosensor for point of care detection. The salient feature of this approach includes low-cost, robust reagents and simple colorimetric detection of pathogen. (Source: Journal of Nanobiotechnology)

Phonoemissive spin tunneling in molecular nanomagnets

Annalen der Physik — Mon, 06 Feb 2012 05:00:00 +0100

AbstractA new mechanism is proposed for the magnetization reversal of molecular nanomagnets such as Fe8. In this process the spin tunnels from the lowest state near one easy direction to the first excited state near the opposite easy direction, and subsequently decays to the second easy direction with the emission of a phonon, or it first emits a phonon and then tunnels to the final state. This mechanism is the simplest imaginable one that allows magnetization relaxation in the presence of a longitudinal magnetic field that is so large that the nuclear spin environment cannot absorb the energy required for energy conservation to hold. It is proposed as a way of understanding both magnetization realaxation and Landau‐Zener‐Stückelberg (LZS) experiments. The requisite Fermi golden rule ...

MedWorm Sponsor Message: Please support the Doctors In Chains campaign for the medics tortured and sentenced for up to 15 years in Bahrain. #FreeDoctors

Nanorod-assembled order affects diffusion rate and direction

EurekAlert! - Biology — Mon, 06 Feb 2012 05:00:00 +0100

(Georgia Institute of Technology) Georgia Tech professor Rigoberto Hernandez studied the movements of a spherical probe amongst static nanorods. He found that the particles sometimes diffused faster in a nematic environment than in a disordered environment. That is, the channels left open between the ordered nanorods don't just steer nanoparticles along a direction, they also enable them to speed right through. (Source: EurekAlert! - Biology)

The right recipe: Engineering research improves laser detectors, batteries

EurekAlert! - Biology — Mon, 06 Feb 2012 05:00:00 +0100

(Kansas State University) A Kansas State University researcher is developing new ways to create and work with carbon nanotubes -- ultrasmall tubes that look like pieces of spaghetti or string. These carbon nanotubes have the perfect ingredients for improving laser detectors and rechargeable batteries. (Source: EurekAlert! - Biology)

The butterfly effect in nanotech medical diagnostics

EurekAlert! - Medicine and Health — Mon, 06 Feb 2012 05:00:00 +0100

(Inderscience Publishers) Tiny metallic nanoparticles that shimmer in the light like the scales on a butterfly's wing are set to become the color-change components of a revolutionary new approach to point-of-care medical diagnostics, according to a study published in International Journal of Design Engineering. (Source: EurekAlert! - Medicine and Health)

Early study suggests nanodiamonds safe for implants

ScienceDaily Headlines — Sun, 05 Feb 2012 21:37:37 +0100

As the number of knee and hip joint replacements grows, nanodiamond coatings could answer problems related to metal surfaces. (Source: ScienceDaily Headlines)

Neurotrophins-Growth Factors Update

Neuromics — Sat, 04 Feb 2012 18:06:00 +0100

Our Neurotrophins and Growth Factor Antibodies and Recombinant Proteins help support a wide span of research areas. These areas include: neuroscience, immunology, cardiac disease research and cancer.I would like to update you on recent publications highlighting use of some of these reagents: Aiko Sada, Kazuteru Hasegawa, Pui Han Pin, Yumiko Saga. NANOS2 Acts Downstream of Glial Cell Line-Derived Neurotrophic Factor Signaling to Suppress Differentiation of Spermatogonial Stem Cells. DOI: 10.1002/stem.790. Copyright © 2011 AlphaMed Press...anti-GFRA1 (1:200, Neuromics, Edina, MN)...Images: Ngn3-Cre targets GFRA1-negative cells. (A-F): At P7, Rosa-YFP; Ngn3-Cre double transgenic testes were immunostained with the indicated markers. Most of YFP-positive spermatogonia (Ngn3-lineage c...

MedWorm Sponsor Message: Find the best January Sales in the UK.

Graphene transistor goes vertical

Nanotechweb.org News — Sat, 04 Feb 2012 15:38:34 +0100

New device can be switched on and off (Source: Nanotechweb.org News)

Probing delicate samples: stiff AFM mechanics at soft forces

Nanotechweb.org journal highlights — Sat, 04 Feb 2012 15:27:01 +0100

Higher-order resonances allow low-force nanomechanical characterization (Source: Nanotechweb.org journal highlights)

Shot-to-shot reproducibility in the emission of fast highly charged metal ions from a laser ion source

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

J. Krasa, A. Velyhan, D. Margarone, E. Krousky, L. Laska et al. The generation of fast highly charged metal ions with the use of the sub-nanosecond Prague Asterix Laser System, operated at a fundamental wavelength of 1315 nm, is reported. Particular attention is paid to shot-to-shot reproducibility in the ion emission. Au and Pd targets were exposed to intensiti ... [Rev. Sci. Instrum. 83, 02B302 (2012)] published Wed Feb 1, 2012. (Source: Review of Scientific Instruments)

Effect of pulse-modulated microwaves on fullerene ion production with electron cyclotron resonance ion source

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

T. Asaji, T. Uchida, H. Minezaki, K. Oshima, R. Racz et al. Fullerene plasmas generated by pulse-modulated microwaves have been investigated under typical conditions at the Bio-Nano electron cyclotron resonance ion source. The effect of the pulse modulation is distinct from that of simply structured gases, and then the density of the fullerene plasmas increa ... [Rev. Sci. Instrum. 83, 02A303 (2012)] published Thu Feb 2, 2012. (Source: Review of Scientific Instruments)

Air plasma waveguide using pico-sec and nano-sec laser pulses

Physics of Plasmas — Sat, 04 Feb 2012 01:22:35 +0100

We report a shock driven plasma in air breakdown using pump-probe to elucidate the hydrodynamic evolution of air plasma waveguide. Imaging of the evolution of air plasma plume is used to investigate the pump pulse effect on the plume dynamic. Imaging of the channeled pulse through evolved waveguide ... [Phys. Plasmas 19, 023502 (2012)] published Fri Feb 3, 2012. (Source: Physics of Plasmas)

MedWorm Sponsor Message: Please support the Doctors In Chains campaign for the medics tortured and sentenced for up to 15 years in Bahrain. #FreeDoctors

Finite-difference time-domain simulation of light induced charge dynamics in silver nanoparticles

Journal of Chemical Physics — Sat, 04 Feb 2012 01:22:34 +0100

Zixuan Hu, Mark A. Ratner, and Tamar Seideman We use a finite-difference time-domain (FDTD) approach to describe and control light-induced charge dynamics via two constructs consisting of nanoscale silver cylinders. The charge dynamics is found to be significantly different from the energy dynamics intensively studied in the past in similar sys ... [J. Chem. Phys. 136, 054504 (2012)] published Thu Feb 2, 2012. (Source: Journal of Chemical Physics)

On the design and applicability of nanowire solar cells using low-grade semiconductors

Journal of Applied Physics — Sat, 04 Feb 2012 01:22:33 +0100

We present a concise model based on the collection probability of photogenerated carriers to investigate the effect of size and geometry on t ... [J. Appl. Phys. 111, 034501 (2012)] published Wed Feb 1, 2012. (Source: Journal of Applied Physics)

The size and diffusion effect of gold on silicon nanowire sidewall faceting

Journal of Applied Physics — Sat, 04 Feb 2012 01:22:33 +0100

In this study, we examine the influence of the size of Au catalyst droplets on the size of SiNWs and discuss the effect of Au diffusion and surface passivation on SiNW sidewall face ... [J. Appl. Phys. 111, 034301 (2012)] published Wed Feb 1, 2012. (Source: Journal of Applied Physics)

Molecular dynamics simulation of the regrowth of nanometric multigate Si devices

Journal of Applied Physics — Sat, 04 Feb 2012 01:22:33 +0100

Luis A. Marques, Lourdes Pelaz, Ivan Santos, Pedro Lopez, and Ray Duffy We use molecular dynamics (MD) simulation techniques to study the regrowth of nanometric multigate Si devices, such as fins and nanowires, surrounded by free surfaces and interfaces with amorphous material. Our results indicate that atoms in amorphous regions close to lateral free surfaces or interf ... [J. Appl. Phys. 111, 034302 (2012)] published Thu Feb 2, 2012. (Source: Journal of Applied Physics)

Modeling of silicon nanocrystals based down-shifter for enhanced silicon solar cell performance

Journal of Applied Physics — Sat, 04 Feb 2012 01:22:33 +0100

F. Sgrignuoli, G. Paternoster, A. Marconi, P. Ingenhoven, A. Anopchenko et al. A transfer matrix model of a luminescent down-shifter (LDS) layer, consisting of silicon nanocrystals (Si-NCs) embedded in a silicon oxide matrix, on a silicon solar cells is presented. To enhance the efficiency of the silicon solar cell, we propose using a SiO/Si-NCs double layer stack, as an anti- ... [J. Appl. Phys. 111, 034303 (2012)] published Thu Feb 2, 2012. (Source: Journal of Applied Physics)

MedWorm Sponsor Message: Find the best January Sales in the UK.

Nanoassembly control and optical absorption in CdTe-ZnO nanocomposite thin films

Journal of Applied Physics — Sat, 04 Feb 2012 01:22:33 +0100

B. G. Potter, Jr., R. J. Beal, and C. G. Allen The spatial distribution of CdTe nanoparticles within a ZnO thin-film matrix was manipulated using a dual-source, sequential radio-frequency (RF)-sputter deposition technique to produce nanocomposite materials with tuned spectral absorption characteristics. The relative substrate exposure time to ea ... [J. Appl. Phys. 111, 034305 (2012)] published Fri Feb 3, 2012. (Source: Journal of Applied Physics)

Tuning upconversion emission by controlling particle shape in NaYF:Yb/Er nanocrystals

Journal of Applied Physics — Sat, 04 Feb 2012 01:22:33 +0100

Dangli Gao, Xiangyu Zhang, and Wei Gao Rod-shaped and plate-shaped NaYF:Yb/Er nanocrystals (NCs) have been synthesized via a facile oleic acid-assisted hydrothermal route. The intensity and color tunability by shape controlling of NCs is demonstrated by up and down frequency conversions in NaYF:Yb/Er NCs. The results obviously show that ... [J. Appl. Phys. 111, 033505 (2012)] published Fri Feb 3, 2012. (Source: Journal of Applied Physics)

Enhanced indirect ferromagnetic p-d exchange coupling of Mn in oxygen rich ZnO:Mn nanoparticles synthesized by wet chemical method

Journal of Applied Physics — Sat, 04 Feb 2012 01:22:33 +0100

Usman Ilyas, R. S. Rawat, T. L. Tan, P. Lee, R. Chen et al. This paper investigates the ferromagnetism in ZnO:Mn powders and presents our findings about the role played by the doping concentration and the structural defects towards the ferromagnetic signal. The narrow-size-distributed ZnO:Mn nanoparticles based powders with oxygen rich stoichiometery were sy ... [J. Appl. Phys. 111, 033503 (2012)] published Fri Feb 3, 2012. (Source: Journal of Applied Physics)

Silver nano particle formation on Ar plasma treated cinnamyl alcohol

Journal of Applied Physics — Sat, 04 Feb 2012 01:22:33 +0100

S. Dahle, M. Marschewski, L. Wegewitz, W. Viol, and W. Maus-Friedrichs Metastable induced electron spectroscopy, ultraviolet photoelectron spectroscopy, X-ray photoelectron spectroscopy, and atomic force microscopy are employed to study the adsorption of silver on cinnamyl alcohol films prepared on Au(111) substrates by thermal evaporation. Additionally, the impact of ... [J. Appl. Phys. 111, 034902 (2012)] published Fri Feb 3, 2012. (Source: Journal of Applied Physics)

Valence band dependence on thermal treatment of gold doped glasses and glass ceramics

Journal of Applied Physics — Sat, 04 Feb 2012 01:22:33 +0100

T. Radu, D. Benea, R. Ciceo-Lucacel, O. Ponta, and S. Simon This paper reports x-ray photoemission spectroscopy results regarding the nucleation and growing process of gold nanoparticles (AuNPs) in CaO-SiO-PO bioactive glasses heat treated at different temperatures. The analysis of the valence band (VB) spectra is discussed in terms of the AuNPs' shape, size ... [J. Appl. Phys. 111, 034701 (2012)] published Fri Feb 3, 2012. (Source: Journal of Applied Physics)

MedWorm Sponsor Message: Please support the Doctors In Chains campaign for the medics tortured and sentenced for up to 15 years in Bahrain. #FreeDoctors

Plasma enables edge-to-center-oriented graphene nanoarrays on Si nanograss

Applied Physics Letters — Sat, 04 Feb 2012 01:21:21 +0100

S. Kumar, I. Levchenko, Q. J. Cheng, J. Shieh, and K. Ostrikov The formation of clearly separated vertical graphene nanosheets on silicon nanograss support is demonstrated. The plasma-enabled, two-stage mask-free process produced self-organized vertical graphenes of a few carbon layers (as confirmed by advanced microanalysis), prominently oriented in the substr ... [Appl. Phys. Lett. 100, 053115 (2012)] published Wed Feb 1, 2012. (Source: Applied Physics Letters)

Influence of a transverse static magnetic field on the magnetic hyperthermia properties and high-frequency hysteresis loops of ferromagnetic FeCo nanoparticles

Applied Physics Letters — Sat, 04 Feb 2012 01:21:21 +0100

B. Mehdaoui, J. Carrey, M. Stadler, A. Cornejo, C. Nayral et al. The influence of a transverse static magnetic field on the magnetic hyperthermia properties is studied on a system of large-losses ferromagnetic FeCo nanoparticles. The simultaneous measurement of the high-frequency hysteresis loops and of the temperature rise provides an interesting insight into th ... [Appl. Phys. Lett. 100, 052403 (2012)] published Wed Feb 1, 2012. (Source: Applied Physics Letters)

Optical detection of melting point depression for silver nanoparticles via in situ real time spectroscopic ellipsometry

Applied Physics Letters — Sat, 04 Feb 2012 01:21:21 +0100

S. A. Little, T. Begou, R. W. Collins, and S. Marsillac Silver nanoparticle films were deposited by sputtering at room temperature and were annealed while monitoring by real time spectroscopic ellipsometry (SE). The nanoparticle dielectric functions (0.75 eV6.5 eV) obtained by SE were modeled using Lorentz and generalized oscillators for the nanoparticle ... [Appl. Phys. Lett. 100, 051107 (2012)] published Wed Feb 1, 2012. (Source: Applied Physics Letters)

ZnS-nanocrystals/polypyrrole nanocomposite film based immunosensor

Applied Physics Letters — Sat, 04 Feb 2012 01:21:21 +0100

We report an electrochemically synthesized ZnS nanocrystals modified polypyrrole (PPy) nanocomposite film based immunosensor for the detection of C-reactive protein (alphaCRP). The ZnS-PPy composite film was characterized by transmission electron microscopy (TEM), atomic force microscopy (AFM) and e ... [Appl. Phys. Lett. 100, 053701 (2012)] published Wed Feb 1, 2012. (Source: Applied Physics Letters)

Temperature dependent dynamics of ZnO nanoparticles probed by Raman scattering: A big divergence in the functional areas of nanoparticles and bulk materials

Applied Physics Letters — Sat, 04 Feb 2012 01:21:21 +0100

Harish Kumar Yadav, R. S. Katiyar, and Vinay Gupta Temperature dependent Raman scattering of the E(low) and E(high) modes of ZnO nanoparticle powder samples has been investigated. The dynamics exhibited by the ZnO nanoparticles, the E modes, follow single crystal like behavior but with strong cubic or/and quadratic anharmonicity by supporting additi ... [Appl. Phys. Lett. 100, 051906 (2012)] published Thu Feb 2, 2012. (Source: Applied Physics Letters)

MedWorm Sponsor Message: Find the best January Sales in the UK.

Picosecond transient photoluminescence in high-density Si-nanodisk arrays fabricated using bio-nano-templates

Applied Physics Letters — Sat, 04 Feb 2012 01:21:21 +0100

Takayuki Kiba, Yoshiya Mizushima, Makoto Igarashi, Chi-Hsien Huang, Seiji Samukawa et al. We study picosecond transient photoluminescence (PL) in Si-nanodisk (Si-ND) arrays fabricated using bio-nano-templates. The PL time profiles show multi-exponential decaying kinetics depending on the disk density. We attribute the fastest decaying component with a decay time of 40 ps observed only in ... [Appl. Phys. Lett. 100, 053117 (2012)] published Thu Feb 2, 2012. (Source: Applied Physics Letters)

Negative differential spin conductance in doped zigzag graphene nanoribbons

Applied Physics Letters — Sat, 04 Feb 2012 01:21:21 +0100

Ting-Ting Wu, Xue-Feng Wang, Ming-Xing Zhai, Hua Liu, Liping Zhou et al. The spin dependent charge transport in zigzag graphene nanoribbons (ZGNRs) has been investigated by the nonequilibrium Green's function method combined with the density functional theory at the local spin density approximation. The current versus voltage curve shows distinguished behaviors for symme ... [Appl. Phys. Lett. 100, 052112 (2012)] published Thu Feb 2, 2012. (Source: Applied Physics Letters)

Angular distribution of field emitted electrons from vertically aligned carbon nanotube arrays

Applied Physics Letters — Sat, 04 Feb 2012 01:21:21 +0100

S. Iacobucci, M. Fratini, A. Rizzo, F. Scarinci, Y. Zhang et al. Angular field emission (FE) properties of vertically aligned carbon nanotube arrays have been measured on samples grown by plasma enhanced chemical vapor deposition and characterized by scanning electron microscope and I-V measurements. These properties determine the angular divergence of electron b ... [Appl. Phys. Lett. 100, 053116 (2012)] published Thu Feb 2, 2012. (Source: Applied Physics Letters)

Dipolar ordering of random two-dimensional spin ensemble

Applied Physics Letters — Sat, 04 Feb 2012 01:21:21 +0100

Andrey V. Panov We theoretically study the randomly positioned two-dimensional system of interacting magnetic dipoles representing the monolayer arrays of single-domain particles. It is showed the onset of the dipolar in-plane superferromagnetic ordering of Ising spins at the surface concentrations of nanoparticles ... [Appl. Phys. Lett. 100, 052406 (2012)] published Thu Feb 2, 2012. (Source: Applied Physics Letters)

Tailoring of electro-optical properties of ferroelectric liquid crystals by doping Pd nanoparticles

Applied Physics Letters — Sat, 04 Feb 2012 01:21:21 +0100

A. Kumar, G. Singh, T. Joshi, G. K. Rao, A. K. Singh et al. We demonstrate here the tailoring of electro-optical properties of ferroelectric liquid crystals (FLCs) by doping different concentrations of Selenium Docosane (SD) capped palladium nanoparticles (PdNPs). The operating voltage is lowered by ~50% in doped FLC as compared to undoped one. The remarkabl ... [Appl. Phys. Lett. 100, 054102 (2012)] published Thu Feb 2, 2012. (Source: Applied Physics Letters)

MedWorm Sponsor Message: Please support the Doctors In Chains campaign for the medics tortured and sentenced for up to 15 years in Bahrain. #FreeDoctors

Fabrication of flower-like silver nanostructure on the Al substrate for surface enhanced fluorescence

Applied Physics Letters — Sat, 04 Feb 2012 01:21:21 +0100

Jun Dong (董军), Hairong Zheng (郑海荣), Xiaoqing Yan, Yu Sun, and Zhenglong Zhang Surface-enhanced fluorescence (SEF) substrates consisting of flower-like nanostructure of electromagnetically coupled silver dendrites on Al surface were manufactured by modified galvanic displacement process between Ag ion and Al at room temperature. Substrate enhancement efficiency, which was eval ... [Appl. Phys. Lett. 100, 051112 (2012)] published Fri Feb 3, 2012. (Source: Applied Physics Letters)

A quantum model for light emission performance of carbon nanotube field effect transistor

Applied Physics Letters — Sat, 04 Feb 2012 01:21:21 +0100

M. R. Aziziyan, V. Ahmadi, and N. Moghadam We propose a full quantum model based on non-equilibrium Green function method to simulate short channel, ohmic-carbon nanotube field effect transistor as light emitter. We consider carrier annihilation using self-energy concept in non-ballistic regime, regarding current conservation. Using this mod ... [Appl. Phys. Lett. 100, 051113 (2012)] published Fri Feb 3, 2012. (Source: Applied Physics Letters)

Enhancement of critical heat flux in pool boiling using atomic layer deposition of alumina

Applied Physics Letters — Sat, 04 Feb 2012 01:21:21 +0100

Bo Feng, Keith Weaver, and G. P. Peterson Alumina nano coatings on platinum (Pt) micro wires were fabricated using atomic layer deposition. During the pool boiling heat transfer, the critical heat flux (CHF) of Pt/Alumina in de-ionized water was found to have a two-fold enhancement compared to that of the same Pt bare wire. The CHF was show ... [Appl. Phys. Lett. 100, 053120 (2012)] published Fri Feb 3, 2012. (Source: Applied Physics Letters)

Light-driven tunable dual-band plasmonic absorber using liquid-crystal-coated asymmetric nanodisk array

Applied Physics Letters — Sat, 04 Feb 2012 01:21:21 +0100

Yanhui Zhao, Qingzhen Hao, Yi Ma, Mengqian Lu, Bingxin Zhang et al. We experimentally demonstrated a light-driven reconfigurable near perfect plasmonic absorber working at dual frequencies in infrared range. By employing nanodisks with different sizes in certain arrangement, near perfect absorption of incident electromagnetic waves can be achieved for different work ... [Appl. Phys. Lett. 100, 053119 (2012)] published Fri Feb 3, 2012. (Source: Applied Physics Letters)

Publisher's Note: Dramatic thermal conductivity reduction by nanostructures for large increase in thermoelectric figure-of-merit of FeSb [Appl. Phys. Lett. 99, 163101 (2011)]

Applied Physics Letters — Sat, 04 Feb 2012 01:21:21 +0100

Huaizhou Zhao, Mani Pokharel, Gaohua Zhu, Shuo Chen, Kevin Lukas et al. Abstract not available. [Appl. Phys. Lett. 100, 059902 (2012)] published Fri Feb 3, 2012. (Source: Applied Physics Letters)

MedWorm Sponsor Message: Find the best January Sales in the UK.

Active coherent beam combination of two high-power single-frequency nanosecond fiber amplifiers

Optics Letters — Sat, 04 Feb 2012 01:20:20 +0100

We report on active coherent beam combining of two single-frequency nanosecond fiber amplifiers by using stochastic parallel gradient descent algorithm. Each fiber amplifier produces an average power of more than 100?W by using three-stage cascaded amplification. The two laser beams are actively ... (Source: Optics Letters)

Photonic crystal nanocavity laser in an optically very thick slab

Optics Letters — Sat, 04 Feb 2012 01:20:19 +0100

A photonic crystal (PhC) nanocavity formed in an optically very thick slab can support reasonably high-Q modes for lasing. Experimentally, we demonstrate room-temperature pulsed lasing operation from the PhC dipole mode emitting at 1324 nm, which is fabricated in an InGaAsP slab with thickness (T) ... (Source: Optics Letters)

The role of self-trapped excitons and defects in the formation of nanogratings in fused silica

Optics Letters — Sat, 04 Feb 2012 01:20:19 +0100

We investigate the role of self-trapped excitons (STEs) and defects in the formation of femtosecond laser pulse induced nanogratings (NGs) in fused silica. Our experiments reveal strongly enhanced NG formation for pulse separations up to the STE lifetime. In addition, the absorption spectra show ... (Source: Optics Letters)

Dense surface functionalization using peptides that recognize differences in organized structures of self-assembling nanomaterials

RSC - Mol. BioSyst. latest articles — Fri, 03 Feb 2012 21:36:08 +0100

Mol. BioSyst., 2012, Advance ArticleDOI: 10.1039/C2MB05435C, PaperToshiki Sawada, Hisakazu MiharaCell adhesion to the fine-structured peptide nanofiber was highly up-regulated by modification with the plural RGDS conjugated nanofiber specific peptides.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Mol. BioSyst. latest articles)

Superparamagnetic Temperature-Responsive Ionic-Cross-Linked Polymeric Hybrid Nanocapsules via Self-Templating Approach

Industrial and Engineering Chemical Research — Fri, 03 Feb 2012 20:55:54 +0100

Industrial & Engineering Chemistry ResearchDOI: 10.1021/ie202828x (Source: Industrial and Engineering Chemical Research)

MedWorm Sponsor Message: Please support the Doctors In Chains campaign for the medics tortured and sentenced for up to 15 years in Bahrain. #FreeDoctors

Nanostructured Titanium Nitride/PEDOT:PSS Composite Films As Counter Electrodes of Dye-Sensitized Solar Cells

ACS Applied Materials and Interfaces — Fri, 03 Feb 2012 20:46:41 +0100

ACS Applied Materials & InterfacesDOI: 10.1021/am201720p (Source: ACS Applied Materials and Interfaces)

Nanoparticle Catalysts That Rest On Graphene

Chemical and Engineering News — Fri, 03 Feb 2012 19:53:41 +0100

Fuel-Cell Catalysis: A single layer of bimetallic nanoparticles on graphene speeds oxygen reduction (Source: Chemical and Engineering News)

Laser-Aided Preparation and Modification of Gadolinium Silicide Nanoparticles in Liquid

The Journal of Physical Chemistry C — Fri, 03 Feb 2012 19:31:39 +0100

The Journal of Physical Chemistry CDOI: 10.1021/jp208409h (Source: The Journal of Physical Chemistry C)

In-Doped Gallium Oxide Micro- and Nanostructures: Morphology, Structure, and Luminescence Properties

The Journal of Physical Chemistry C — Fri, 03 Feb 2012 19:00:40 +0100

The Journal of Physical Chemistry CDOI: 10.1021/jp210233p (Source: The Journal of Physical Chemistry C)

MedWorm Sponsor Message: Find the best January Sales in the UK.

Co3O4/ZnO Nanocomposites: From Plasma Synthesis to Gas Sensing Applications

ACS Applied Materials and Interfaces — Fri, 03 Feb 2012 18:00:48 +0100

ACS Applied Materials & InterfacesDOI: 10.1021/am201591w (Source: ACS Applied Materials and Interfaces)

Multidrug resistance protein P-glycoprotein does not recognize nanoparticle C60: experiment and modeling

RSC - Soft Matter latest articles — Fri, 03 Feb 2012 17:54:06 +0100

Soft Matter, 2012, Advance ArticleDOI: 10.1039/C2SM06811G, PaperXue Xu, Ruibin Li, Ming Ma, Xia Wang, Yonghua Wang, Hanfa ZouIn vitro experiments combined with molecular dynamics (MD) simulations were carried out to investigate the interactions of the multidrug resistance (MDR) protein P-gp with fullerene (C60), one of the most important nano-drug carriers.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Soft Matter latest articles)

Biopolymer folding driven nanoparticle reorganization in bio-nanocomposites

RSC - Soft Matter latest articles — Fri, 03 Feb 2012 17:54:06 +0100

Soft Matter, 2012, Advance ArticleDOI: 10.1039/C2SM06666A, PaperFlorent Carn, Francois Boue, Madeleine Djabourov, Nathalie Steunou, Thibaud Coradin, Jacques Livage, Sebastien Floquet, Emmanuel Cadot, Eric BuhlerWe show that the biopolymer folding transition modifies the nanoparticle state of dispersion in two kinds of bio-nanocomposite hydrogels.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Soft Matter latest articles)

Toughening fragile matter: mechanical properties of particle solids assembled from polymer-grafted hybrid particles synthesized by ATRP

RSC - Soft Matter latest articles — Fri, 03 Feb 2012 17:54:06 +0100

Soft Matter, 2012, Advance ArticleDOI: 10.1039/C2SM06915F, PaperJihoon Choi, Chin Ming Hui, Joanna Pietrasik, Hongchen Dong, Krzysztof Matyjaszewski, Michael R. BockstallerPolymeric ligands are shown to enhance the toughness of particle array structures. Guidelines for the synthesis of nanoparticles capable of forming ordered yet robust array structures are established.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Soft Matter latest articles)

Reversible regulation of bioactive ligands presented on immobilized gold nanoparticles

RSC - Soft Matter latest articles — Fri, 03 Feb 2012 17:54:06 +0100

Soft Matter, 2012, Advance ArticleDOI: 10.1039/C2SM06567C, CommunicationXintong Wang, Jeremiah J. Riesberg, Wei ShenThe accessibility of a bioactive ligand immobilized in submicron patches through the control of gold nanoparticles is reversibly regulated via co-immobilization and removal of poly(ethylene) glycol through heterodimerization of coiled-coils.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Soft Matter latest articles)

MedWorm Sponsor Message: Please support the Doctors In Chains campaign for the medics tortured and sentenced for up to 15 years in Bahrain. #FreeDoctors

High-fidelity fabrication of Au-polymer Janus nanoparticles using a solution template approach

RSC - Soft Matter latest articles — Fri, 03 Feb 2012 17:54:06 +0100

Soft Matter, 2012, Advance ArticleDOI: 10.1039/C2SM07002B, PaperTingling Rao, Xue-Hui Dong, Byran C. Katzenmeyer, Chrys Wesdemiotis, Stephen Z. D. Cheng, Matthew L. BeckerOur solution template based synthetic methodology yields well-defined gold-micelle Janus nanoparticles in high yields.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Soft Matter latest articles)

Semiconductor quantum dot - inorganic nanotube hybrids

RSC - Phys. Chem. Chem. Phys. latest articles — Fri, 03 Feb 2012 17:54:05 +0100

Phys. Chem. Chem. Phys., 2012, Accepted ManuscriptDOI: 10.1039/C2CP24043B, PaperDan Oron, Ronen Kreizman, Osip Schwartz, Zvicka Deutsch, Stella Itzhakov, Alla Zak, Sidney Cohen, Reshef TenneA synthetic route for preparation of inorganic WS2 nanotube (INT)-colloidal semiconductor quantum dot (QD) hybrid structures is developed, and transient carrier dynamics on these hybrids are studied via transient photoluminescence...The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Phys. Chem. Chem. Phys. latest articles)

Multiple electron injection dynamics in linearly-linked two dye co-sensitized nanocrystalline metal oxide electrodes for dye-sensitized solar cells

RSC - Phys. Chem. Chem. Phys. latest articles — Fri, 03 Feb 2012 17:54:05 +0100

Phys. Chem. Chem. Phys., 2012, Accepted ManuscriptDOI: 10.1039/C2CP23522F, PaperQing Shen, Yuhei Ogomi, Byung-wook Park, Takafumi Inoue, SHYAM S PANDEY, Akari Miyamoto, Shinsuke Fujita, Kenji Katayama, Taro Toyoda, Shuji HayaseUnderstanding the electron transfer dynamics at the interface between dye sensitizer and semiconductor nanoparticle is very important for both a fundamental study and development of dye-sensitized solar cells (DSCs), which...The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Phys. Chem. Chem. Phys. latest articles)

Interrelated Functionalities of Hierarchically CNT/CeO2/Pt Nanostructured Layers: Synthesis, Characterization, and Electroactivity

RSC - Phys. Chem. Chem. Phys. latest articles — Fri, 03 Feb 2012 17:54:05 +0100

We present a free-standing catalyst layer comprising a current collector/CNTs (catalyst support)/CeO2/Pt (catalyst) nanostructured layers, each layer constructed upon the one below it. FESEM and TEM showed that CeO2 layer...The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Phys. Chem. Chem. Phys. latest articles)

Direct synthesis of platelet graphitic-nanofibres as a highly porous counter-electrode in dye-sensitized solar cells

RSC - Phys. Chem. Chem. Phys. latest articles — Fri, 03 Feb 2012 17:54:05 +0100

Phys. Chem. Chem. Phys., 2012, Accepted ManuscriptDOI: 10.1039/C2CP24078E, CommunicationChien-Kuo HsiehWe synthesized platelet graphitic-nanofibres (GNFs) directly on to FTO glass and applied this forest of platelet GNFs as a highly porous structural counter-electrode in dye-sensitized solar cells (DSSCs). We investigated...The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Phys. Chem. Chem. Phys. latest articles)

MedWorm Sponsor Message: Find the best January Sales in the UK.

Interfacial electron transfer dynamics in dye-modified graphene oxide nanosheets studied by single-molecule fluorescence spectroscopy

RSC - Phys. Chem. Chem. Phys. latest articles — Fri, 03 Feb 2012 17:54:05 +0100

Phys. Chem. Chem. Phys., 2012, Accepted ManuscriptDOI: 10.1039/C2CP23317G, PaperTakashi Tachikawa, Shi-Cong Cui, Mamoru Fujitsuka, Tetsuro MajimaGraphene oxide (GO) nanosheets have received a great deal of attention for a wide range of applications from optoelectronic devices to biological sensors. We now report a mechanistic study of...The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Phys. Chem. Chem. Phys. latest articles)

First-principles Study on the Reconstruction induced by the Adsorption of C60 on Pt(111)

RSC - Phys. Chem. Chem. Phys. latest articles — Fri, 03 Feb 2012 17:54:05 +0100

Phys. Chem. Chem. Phys., 2012, Accepted ManuscriptDOI: 10.1039/C2CP23592G, PaperMin HuangThe adsorption of C60 on Pt(111) surface and the origins of the [surd radical]13 [times][surd radical]13R13.9◦ or 2[surd radical]3 [times]2[surd radical]3R30◦ nanopatterning of C60/Pt(111) system have been investigated by means of first-principles calculations. In...The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Phys. Chem. Chem. Phys. latest articles)

Structure-dependent optical properties of Single-Walled Silicon Nanotubes

RSC - Phys. Chem. Chem. Phys. latest articles — Fri, 03 Feb 2012 17:54:05 +0100

Phys. Chem. Chem. Phys., 2012, Accepted ManuscriptDOI: 10.1039/C2CP23164F, PaperMin Zhang, Zhong-Min Su, Guanhua ChenThe electron excitations of Single-Walled Silicon Nanotubes (SWSiNTs), with sp2 and sp3 hybridization, are calculated by LDM method using INDO/S parameters. Strong anisotropy characteristics of the dynamic polarizabilities are found...The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Phys. Chem. Chem. Phys. latest articles)

A vertically aligned carbon nanotube-based impedance sensing biosensor for rapid and high sensitive detection of cancer cells

RSC - Lab Chip latest articles — Fri, 03 Feb 2012 17:54:04 +0100

Lab Chip, 2012, Advance ArticleDOI: 10.1039/C2LC21028B, PaperMohammad Abdolahad, Mohammad Taghinejad, Hossein Taghinejad, Mohsen Janmaleki, Shams MohajerzadehGreat mechanical and electrical interactions between cancer cells and carbon nanotubes were applied for a new cancer cell impedance biosensor.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Lab Chip latest articles)

Rational aspect ratio and suitable antibody coverage of gold nanorod for ultra-sensitive detection of a cancer biomarker

RSC - Lab Chip latest articles — Fri, 03 Feb 2012 17:54:04 +0100

Lab Chip, 2012, Advance ArticleDOI: 10.1039/C2LC20588B, PaperPhuoc Long Truong, Byung Woo Kim, Sang Jun SimBy experimentally determining the optimal sensitivity of Au nanorods for an individual optical nanosensor and optimizing the accessibility between the carboxyl groups of the self-assembled monolayer on the gold nanorod surface and the PSA mAb, the individual Au nanorod sensor was effectively exploited for the detection of a PSA biomarker with 1 aM sensitivity ([similar]6 [times] 105 molecules).To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Lab Chip latest articles)

MedWorm Sponsor Message: Please support the Doctors In Chains campaign for the medics tortured and sentenced for up to 15 years in Bahrain. #FreeDoctors

Enhanced discrimination of DNA molecules in nanofluidic channels through multiple measurements

RSC - Lab Chip latest articles — Fri, 03 Feb 2012 17:54:04 +0100

Lab Chip, 2012, Advance ArticleDOI: 10.1039/C2LC20771K, PaperYi-Heng Sen, Tarun Jain, Carlos A. Aguilar, Rohit KarnikMultiple measurements on the same DNA molecule translocating through a nanochannel enable enhanced discrimination between molecules of different lengths.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Lab Chip latest articles)

Nanoscale convection assisted self-assembly of nanoparticle monolayer

RSC - J. Mater. Chem. latest articles — Fri, 03 Feb 2012 17:54:03 +0100

J. Mater. Chem., 2012, Advance ArticleDOI: 10.1039/C2JM16220B, PaperLihua Qian, Shengjie Zhai, Yingtao Jiang, Biswajit DasConvective assemblies confined within artificial grooves below a pipette tip are employed to create Au nanoparticle monolayers. Solvent transportation within nanoscale grooves and linear sweep of the pipette tip assist creating nanoparticle strips. Various stacking layers within one isolated strip are determined by the groove's geometries, and nanoparticle monolayer is only created within small grooves.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)

Self-assembly of cationic pyrene nanotubes

RSC - J. Mater. Chem. latest articles — Fri, 03 Feb 2012 17:54:03 +0100

J. Mater. Chem., 2012, Advance ArticleDOI: 10.1039/C2JM15997J, PaperYulan Chen, Bo Zhu, Yang Han, Zhishan BoPyrene-containing cationic amphiphiles PyPA-X can self-assemble to form either well-defined nanotubes or nanoribbons depending on the counter anions.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)

Large-scale production of ultrathin topological insulator bismuth telluride nanosheets by a hydrothermal intercalation and exfoliation route

RSC - J. Mater. Chem. latest articles — Fri, 03 Feb 2012 17:54:03 +0100

J. Mater. Chem., 2012, Advance ArticleDOI: 10.1039/C2JM15973B, PaperLong Ren, Xiang Qi, Yundan Liu, Guolin Hao, Zongyu Huang, Xianghua Zou, Liwen Yang, Jun Li, Jianxin ZhongLarge-scale preparation of ultrathin Bi2Te3 nanosheets with high quality was achieved via a convenient hydrothermal intercalation and exfoliation process.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)

Surface modification of electrospun TiO2 nanofibers via layer-by-layer self-assembly for high-performance lithium-ion batteries

RSC - J. Mater. Chem. latest articles — Fri, 03 Feb 2012 17:54:03 +0100

J. Mater. Chem., 2012, Advance ArticleDOI: 10.1039/C2JM15197A, PaperWei Luo, Xianluo Hu, Yongming Sun, Yunhui HuangA layer-by-layer self-assembly route is developed to fabricate unique MoO2-modified TiO2 nanofibers that exhibit enhanced Li-storage performances.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)

MedWorm Sponsor Message: Find the best January Sales in the UK.

Zinc oxide nanocrystals as electron injecting building blocks for plastic light sources

RSC - J. Mater. Chem. latest articles — Fri, 03 Feb 2012 17:54:03 +0100

J. Mater. Chem., 2012, Advance ArticleDOI: 10.1039/C2JM15584B, PaperMichele Sessolo, Henk J. Bolink, Hicham Brine, Helena Prima-Garcia, Ramon Tena-ZaeraEfficient, bright and flexible hybrid organic-inorganic light emitting diodes (HyLEDs) are prepared using ZnO nanocrystals as the electron injection materials. Best efficiencies are obtained for room temperature processed devices, thanks to the strongest quantum confinement and associated largest bandgap of the metal oxide nanocrystal-based layer.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)

Semimetallic TiO2 nanotubes: new interfaces for bioelectrochemical enzymatic catalysis

RSC - J. Mater. Chem. latest articles — Fri, 03 Feb 2012 17:54:03 +0100

J. Mater. Chem., 2012, Advance ArticleDOI: 10.1039/C2JM16427B, CommunicationDavid Sarauli, Marc Riedel, Christoph Wettstein, Robert Hahn, Konstanze Stiba, Ulla Wollenberger, Silke Leimkuhler, Patrik Schmuki, Fred LisdatThe achievement of direct electron transfer to cytochrome c and bioelectrocatalysis of two selected enzymes on TiO2 nanotubes are demonstrated.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)

Porous V2O5 micro/nano-tubes: Synthesis via a CVD route, single-tube-based humidity sensor and improved Li-ion storage properties

RSC - J. Mater. Chem. latest articles — Fri, 03 Feb 2012 17:54:03 +0100

J. Mater. Chem., 2012, Advance ArticleDOI: 10.1039/C2JM15494C, PaperHaihong Yin, Ke Yu, Hui Peng, Zhengli Zhang, Rong Huang, Jadranka Travas-Sejdic, Ziqiang ZhuV2O5 micro/nano-tubes with a porous wall were synthesized via a CVD process. A humidity sensor based on a single tube indicated fast response/recovery. The porous V2O5 micro/nano-tubes were used as a cathode material for lithium-ion batteries exhibiting high lithium-storage capacity, excellent cycling stability and reversibility, and improvement of electrochemical kinetics.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)

Electrophoretically deposited CdS quantum dots based electrode for biosensor application

RSC - J. Mater. Chem. latest articles — Fri, 03 Feb 2012 17:54:03 +0100

J. Mater. Chem., 2012, Advance ArticleDOI: 10.1039/C2JM15914G, PaperHemant Dhyani, Md. Azahar Ali, Manoj K. Pandey, Bansi D. Malhotra, Prasenjit SenA novel bioelectrode (ChOx/Nano-CdS/ITO) has been synthesized for a cholesterol biosensor using electrophoretic deposition of TGA capped CdS quantum dots.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)

Polypyrrole metacomposites with different carbon nanostructures

RSC - J. Mater. Chem. latest articles — Fri, 03 Feb 2012 17:54:03 +0100

J. Mater. Chem., 2012, Advance ArticleDOI: 10.1039/C2JM14020A, PaperJiahua Zhu, Xi Zhang, Neel Haldolaarachchige, Qiang Wang, Zhiping Luo, Jongeun Ryu, David P. Young, Suying Wei, Zhanhu GuoConductive polypyrrole nanocomposites filled with different carbon nanostructures have been investigated and their corresponding properties have been compared.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)

MedWorm Sponsor Message: Please support the Doctors In Chains campaign for the medics tortured and sentenced for up to 15 years in Bahrain. #FreeDoctors

Synthesis of highly aligned and ultralong coordination polymer nanowires and their calcination to porous manganese oxide nanostructures

RSC - J. Mater. Chem. latest articles — Fri, 03 Feb 2012 17:54:03 +0100

J. Mater. Chem., 2012, Advance ArticleDOI: 10.1039/C2JM15607E, PaperCheng Chao Li, Lin Mei, Li Bao Chen, Qiu hong Li, Tai Hong WangAn extremely facile Mn-based coordination polymer route for the preparation of porous 3D manganese oxide nanostructures is presented. The well-organized Mn-based polymer precursors with good morphological and high chemical purities were prepared using nitrilotriacetic acid (NA) as a chelating agent by a one-step hydrothermal approach.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)

Preparation and characterization of Au-ZrO2-SiO2 nanocomposite spheres and their application in enrichment and detection of organophosphorus agents

RSC - J. Mater. Chem. latest articles — Fri, 03 Feb 2012 17:54:03 +0100

J. Mater. Chem., 2012, Advance ArticleDOI: 10.1039/C2JM15129D, PaperYuqi Yang, Haiyang Tu, Aidong Zhang, Dan Du, Yuehe LinA non-enzymatic electrochemical sensor for directly monitoring organophosphate pesticides by using Au-ZrO2-SiO2 nanocomposite spheres as a solid-phase extraction material has been studied.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)

Synthesis of mesoporous magnetic Fe3O4@carbon nanofibers utilizing in situ polymerized polybenzoxazine for water purification

RSC - J. Mater. Chem. latest articles — Fri, 03 Feb 2012 17:54:03 +0100

J. Mater. Chem., 2012, Advance ArticleDOI: 10.1039/C2JM00036A, CommunicationYang Si, Tao Ren, Bin Ding, Jianyong Yu, Gang SunOne dimensional polybenzoxazine-based Fe3O4@carbon nanofibers with enhanced mesoporous structure and excellent magnetic adsorption performance were fabricated by an in situ polymerization strategy.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)

Fabrication of coenocytic Pd@CdS nanocomposite as a visible light photocatalyst for selective transformation under mild conditions

RSC - J. Mater. Chem. latest articles — Fri, 03 Feb 2012 17:54:03 +0100

J. Mater. Chem., 2012, Advance ArticleDOI: 10.1039/C2JM15009C, PaperNan Zhang, Siqi Liu, Xianzhi Fu, Yi-Jun XuCoenocytic Pd@CdS nanocomposite as a novel visible light photocatalyst has been prepared via a facile wet chemistry approach.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)

Directly suspended droplet microextraction combined with energy-dispersive X-ray fluorescence spectrometry to determine nano levels of phosphate in surface water

RSC - J. Anal. At. Spectrom. latest articles — Fri, 03 Feb 2012 17:54:03 +0100

J. Anal. At. Spectrom., 2012, Advance ArticleDOI: 10.1039/C2JA10313C, PaperKatarzyna Pytlakowska, Rafal SitkoCombination of EDXRF and DSDME was proposed for determination of phosphate in water via molybdenum blue complex.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Anal. At. Spectrom. latest articles)

MedWorm Sponsor Message: Find the best January Sales in the UK.

Twins in polyhedral 26-facet Cu7S4 cages: Synthesis, characterization and their enhancing photochemical activities

RSC - Dalton Trans. latest articles — Fri, 03 Feb 2012 17:54:01 +0100

Dalton Trans., 2012, Advance ArticleDOI: 10.1039/C2DT12091G, PaperShaodong Sun, Dongchu Deng, Chuncai Kong, Xiaoping Song, Zhimao YangUnusual polyhedral 26-facet Cu7S4 microcages wholly composed of nanotwinned building blocks were successfully synthesized via a facile ethanol-assisted sacrificial Cu2O templates approach.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Dalton Trans. latest articles)

Synthesis of Monodisperse CeO2 Octahedra Assembled by Nano-sheets with exposed {001} facets and Catalytic property

RSC - CrystEngComm latest articles — Fri, 03 Feb 2012 17:54:01 +0100

CrystEngComm, 2012, Accepted ManuscriptDOI: 10.1039/C2CE06664E, CommunicationXi-Guang Han, liang Li, chao WangThe octahedron-like CeO2 particles assemble by nanosheets with exposed (001) facets have been successfully synthesized. It has been demonstrated that polyvinyl pyrrolidone (PVP) plays an important role in forming of...The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - CrystEngComm latest articles)

Formation, structure and physical properties of a series of [small alpha]-MoO3 nanocrystals: from 3D to 1D and 2D

RSC - CrystEngComm latest articles — Fri, 03 Feb 2012 17:54:01 +0100

CrystEngComm, 2012, Advance ArticleDOI: 10.1039/C2CE06567C, PaperLe Xin Song, Juan Xia, Zheng Dang, Jun Yang, Liang Bing Wang, Jie ChenThe structural transformation of [small alpha]-MoO3 crystals from a 3D nano-shuttle to a 1D nano-belt to a 2D nano-multilayer can be easily achieved just by increasing sintering temperatures.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - CrystEngComm latest articles)

[small alpha]-Fe2O3 hierarchically nanostructured mesoporous microspheres: Surfactant-free solvothermal combined with heat treatment synthesis, photocatalytic activity and magnetic property

RSC - CrystEngComm latest articles — Fri, 03 Feb 2012 17:54:01 +0100

CrystEngComm, 2012, Advance ArticleDOI: 10.1039/C2CE06473A, PaperJing-San Xu, Ying-Jie ZhuA surfactant-free method is demonstrated to prepare [small alpha]-Fe2O3 hierarchically nanostructured mesoporous microspheres exhibiting high photocatalytic activity and high coercivity values.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - CrystEngComm latest articles)

Morphology control of rutile TiO2 hierarchical architectures and their excellent field emission properties

RSC - CrystEngComm latest articles — Fri, 03 Feb 2012 17:54:01 +0100

CrystEngComm, 2012, Advance ArticleDOI: 10.1039/C2CE06392A, PaperDebabrata Sarkar, Chandan. K. Ghosh, Kalyan K. ChattopadhyayThe morphology of the TiO2 hierarchical architecture morphologies including cauliflower, 3D microspheres, densely-packed array, nanorod with step-edge facets and multi-level branched architectures was achieved by varying the volume fraction of HCl during hydrothermal synthesis.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - CrystEngComm latest articles)

MedWorm Sponsor Message: Please support the Doctors In Chains campaign for the medics tortured and sentenced for up to 15 years in Bahrain. #FreeDoctors

Controlled Transformation of ZnO Nanobelts into CoO/Co3O4 Nanowires

RSC - CrystEngComm latest articles — Fri, 03 Feb 2012 17:54:01 +0100

CrystEngComm, 2012, Accepted ManuscriptDOI: 10.1039/C2CE06681E, PaperChan Woong Na, Hyung-Sik Woo, Hyo-Joong Kim, Unyong Jeong, Jae-Ho Chung, Jong-Heun LeeHighly crystalline CoO and Co3O4 nanowires were prepared by vapor-phase conversion of ZnO nanobelts. The ZnO nanobelts were successfully transformed into highly crystralline CoO nanowires by thermal thermal evaporation of...The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - CrystEngComm latest articles)

Facile synthesis of SnO2 nanocrystalline tubes by electrospinning and their fast response and high sensitivity to NOx at room temperature

RSC - CrystEngComm latest articles — Fri, 03 Feb 2012 17:54:01 +0100

CrystEngComm, 2012, Advance ArticleDOI: 10.1039/C2CE06405G, PaperChao Jiang, Guo Zhang, Yan Wu, Li Li, Keying ShiTin dioxide nanocrystalline tubes (TONTs) which predominantly consist of 5-10 nm SnO2 nanoparticles, are fabricated via the electrospinning process, followed by heat treatment. By using NOx as a probe molecule, the TONTs exhibit excellent sensing performances in terms of high response, fast response-recovery and good stability at room temperature.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - CrystEngComm latest articles)

Facile synthesis of polypyrrole coated copper nanowires: a new concept to engineered core-shell structures

RSC - Chem. Commun. latest articles — Fri, 03 Feb 2012 17:53:59 +0100

Chem. Commun., 2012, Advance ArticleDOI: 10.1039/C2CC16961D, CommunicationYang Liu, Zhen Liu, Ning Lu, Elisabeth Preiss, Selcuk Poyraz, Moon J. Kim, Xinyu ZhangPolypyrrole coated copper nanowires (PPy-CuNWs) were obtained in one-pot synthesis, which possess outstanding chemical sensing properties and environmental stability.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Chem. Commun. latest articles)

A highly active and magnetically retrievable nanoferrite-DOPA-copper catalyst for the coupling of thiophenols with aryl halides

RSC - Chem. Commun. latest articles — Fri, 03 Feb 2012 17:53:59 +0100

Chem. Commun., 2012, Advance ArticleDOI: 10.1039/C2CC17283F, CommunicationR. B. Nasir Baig, Rajender S. VarmaA magnetically retrievable and recyclable heterogeneous Cu catalyst has been used for an eco-friendly synthesis of diaryl sulfides in isopropanol via C-S coupling of aryl halides with thiophenols under MW irradiation conditions.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Chem. Commun. latest articles)