Materials Science 
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This page shows you the most recent publications within this specialty of the MedWorm directory. This is page number 15.
Spherical Porphyrin Sensor
Array Based on Encoded
Colloidal Crystal Beads for VOC Vapor Detection
ACS Applied Materials & InterfacesDOI: 10.1021/am3019383
Source: ACS Applied Materials and Interfaces - November 28, 2012 Category: Materials Science Authors: Hua Xu, Kai-Di Cao, Hai-Bo Ding, Qi-Feng Zhong, Hong-Cheng Gu, Zhuo-Ying Xie, Yuan-Jin Zhao and Zhong-Ze Gu Source Type: research
Role of Specific Interfacial Area in Controlling Properties
of Immiscible Blends of Biodegradable Polylactide and Poly[(butylene
succinate)-co-adipate]
ACS Applied Materials & InterfacesDOI: 10.1021/am301842e
Source: ACS Applied Materials and Interfaces - November 28, 2012 Category: Materials Science Authors: Vincent Ojijo, Suprakas Sinha Ray and Rotimi Sadiku Source Type: research
Synthesis of [(SnSe)1.15]m(TaSe2)n Ferecrystals:
Structurally Tunable Metallic Compounds
Chemistry of MaterialsDOI: 10.1021/cm302948x
Source: Chemistry of Materials - November 28, 2012 Category: Materials Science Authors: Ryan Atkins, Jason Wilson, Paul Zschack, Corinna Grosse, Wolfgang Neumann and David C. Johnson Source Type: research
Silicification of Genipin-Cross-Linked
Polypeptide Hydrogels Toward Biohybrid Materials and Mesoporous Oxides
ACS Applied Materials & InterfacesDOI: 10.1021/am302016c
Source: ACS Applied Materials and Interfaces - November 28, 2012 Category: Materials Science Authors: Jeng-Shiung Jan, Pei-Shan Chen, Ping-Lun Hsieh and Bo-Yu Chen Source Type: research
Insight into differences in nanoindentation properties of bone.
The objective of the current study is to evaluate and compare mechanical properties of the same bones using a broad range of testing parameters. Wild type C56BL6 mice tibiae were embedded following different processes and tested in dry and rehydrated conditions. Spherical and Berkovich indenter probes were used, and data analysis was considered within the elasto-plastic (Oliver-Pharr), viscoelastic and visco-elastic-plastic frameworks. The mean values of plane strain modulus varied significantly depending on the hydration state, probe geometry and analysis method. Indentations in dry bone analyzed using a visco-elastic-pla...
Source: Journal of the Mechanical Behavior of Biomedical Materials - November 28, 2012 Category: Materials Science Authors: Rodriguez-Florez N, Oyen ML, Shefelbine SJ Tags: J Mech Behav Biomed Mater Source Type: research
Experimental Study of
Interfacial Fracture Toughness in a SiNx/PMMA Barrier Film
ACS Applied Materials & InterfacesDOI: 10.1021/am301880y
Source: ACS Applied Materials and Interfaces - November 27, 2012 Category: Materials Science Authors: Yongjin Kim, Anuradha Bulusu, Anthony J. Giordano, Seth R. Marder, Reinhold Dauskardt and Samuel Graham Source Type: research
Facile Synthesis of Germanium
Nanoparticles with Size
Control: Microwave versus Conventional Heating
Chemistry of MaterialsDOI: 10.1021/cm302229b
Source: Chemistry of Materials - November 27, 2012 Category: Materials Science Authors: Elayaraja Muthuswamy, Andrew S. Iskandar, Marlene M. Amador and Susan M. Kauzlarich Source Type: research
Gold Contamination in
VLS-Grown Si Nanowires: Multiwavelength
Anomalous Diffraction Investigations
Chemistry of MaterialsDOI: 10.1021/cm301739n
Source: Chemistry of Materials - November 27, 2012 Category: Materials Science Authors: Ludovic Dupré, Denis Buttard, Cédric Leclere, Hubert Renevier and Pascal Gentile Source Type: research
Optimized Sol–Gel
Routes to Synthesize Yttria-Stabilized
Zirconia Thin Films as Solid Electrolytes for Solid Oxide Fuel Cells
Chemistry of MaterialsDOI: 10.1021/cm302177s
Source: Chemistry of Materials - November 27, 2012 Category: Materials Science Authors: Emilie Courtin, Philippe Boy, Clément Rouhet, Luc Bianchi, Eric Bruneton, Nathalie Poirot, Christel Laberty-Robert and Clément Sanchez Source Type: research
Strategy To Enhance the
Wettability of Bioacive Paper-Based Sensors
ACS Applied Materials & InterfacesDOI: 10.1021/am301699m
Source: ACS Applied Materials and Interfaces - November 27, 2012 Category: Materials Science Authors: Junfei Tian, Purim Jarujamrus, Lizi Li, Miaosi Li and Wei Shen Source Type: research
Effects of amphiphilic star-shaped poly(ethylene glycol) polymers with a cholic acid core on human red blood cell aggregation.
Abstract
Elevated red blood cell (RBC) aggregation increases low-shear blood viscosity and is closely related to several pathophysiological diseases such as atherosclerosis, thrombosis, diabetes, hypertension, cancer, and hereditary chronic hemolytic conditions. Non-ionic linear polymers such as poly(ethylene glycol) (PEG) and Pluronic F68 have shown inhibitory effects against RBC aggregation. However, hypersensitivity reactions in some individuals, attributed to a diblock component of Pluronic F68, have been reported. Therefore, we investigated the use of an amphiphilic star-shaped PEG polymer based on a cholic ac...
Source: Journal of the Mechanical Behavior of Biomedical Materials - November 27, 2012 Category: Materials Science Authors: Janvier F, Zhu JX, Armstrong J, Meiselman HJ, Cloutier G Tags: J Mech Behav Biomed Mater Source Type: research
Microstructure and mechanical properties of MgO-stabilized ZrO(2)-Al(2)O(3) dental composites.
Abstract
The aim of the present study was to investigate the production of tetragonal zirconia (t-ZrO(2)) particles (experimental t-ZrO(2)) from monoclinic zirconia (m-ZrO(2)) and to evaluate the effect of the t-ZrO(2) content on the fracture toughness of alumina-zirconia composites by conducting ASTM E399 standard test. In the laboratory study, t-ZrO(2) powder was produced by heat treating m-ZrO(2) containing 10wt.% MgO. Alumina and alumina-zirconia composite powders containing various types and amounts of m-ZrO(2) and t-ZrO(2) were prepared (0-20wt.%), shaped by slip casting to achieve a uniform distribution and ...
Source: Journal of the Mechanical Behavior of Biomedical Materials - November 27, 2012 Category: Materials Science Authors: Abi CB, Emrullahog˘lu OF, Said G Tags: J Mech Behav Biomed Mater Source Type: research
Mechanical anisotropy in compressed collagen produced by localised photodynamic cross-linking.
Abstract
Orientated focal cross-linking can be used to generate surface anisotropy, improve material stiffness and layer integration for the production of a stable 3D construct. Riboflavin (0.25mM) diffusion into plastically compressed (PC) collagen gel was assessed by measuring the diffusion depth of riboflavin with time. The dynamic force analyser was used for peel force testing for interlayer cross-linking and material stiffness in perpendicular axis after orientated/topical cross-linking. One minute riboflavin diffusion time on either surface will saturate >12% of the collagen gel. Bonding strength doubled b...
Source: Journal of the Mechanical Behavior of Biomedical Materials - November 27, 2012 Category: Materials Science Authors: Wong JP, Macrobert AJ, Cheema U, Brown RA Tags: J Mech Behav Biomed Mater Source Type: research
Comparative Interface
Metrics for Metal-Free Monolayer-Based Dye-Sensitized Solar Cells
ACS Applied Materials & InterfacesDOI: 10.1021/am301907z
Source: ACS Applied Materials and Interfaces - November 26, 2012 Category: Materials Science Authors: Kung-Ching Liao, Hafeez Anwar, Ian G. Hill, Grigory K. Vertelov and Jeffrey Schwartz Source Type: research
A Novel Molecular Beacon
Bearing a Graphite Nanoparticle
as a Nanoquencher for In situ mRNA Detection in Cancer Cells
ACS Applied Materials & InterfacesDOI: 10.1021/am301976r
Source: ACS Applied Materials and Interfaces - November 26, 2012 Category: Materials Science Authors: Yunxian Piao, Fei Liu and Tae Seok Seo Source Type: research
Antioxidant and Antiradical
SiO2 Nanoparticles Covalently Functionalized with Gallic
Acid
ACS Applied Materials & InterfacesDOI: 10.1021/am301751s
Source: ACS Applied Materials and Interfaces - November 26, 2012 Category: Materials Science Authors: Yiannis Deligiannakis, Georgios A. Sotiriou and Sotiris E. Pratsinis Source Type: research
VP22 and cytosine deaminase fusion gene modified tissue-engineered neural stem cells for glioma therapy
Conclusions Our results reveal that VP22 increases the transduction efficiency of lentivirus into NSCs and enhances the therapeutic efficacy
of CD-engineered rat NSCs in the treatment for C6 glioma, demonstrating that VP22 might be a useful tool for the gene therapy
of engineered NSCs and providing a potential novel strategy for enhancing the effectiveness of gene therapy in other diseases.
Content Type Journal ArticleCategory Original PaperPages 1-9DOI 10.1007/s00432-012-1347-3Authors
Guishan Jin, Brain Tumor Research Center, Department of Neurosurgery, Beijing Neurosurgical Institute, Beijing Tian...
Source: Journal of Cancer Research and Clinical Oncology - November 26, 2012 Category: Cancer & Oncology Tags: Journal of Cancer Research and Clinical Oncology Source Type: research
Table of Contents
Source: The Journal of Pain - November 26, 2012 Category: Materials Science Tags: Frontmatter Source Type: research
Editorial Board
Source: The Journal of Pain - November 26, 2012 Category: Materials Science Tags: Frontmatter Source Type: research
Masthead
Source: The Journal of Pain - November 26, 2012 Category: Materials Science Tags: Frontmatter Source Type: research
Authors Build an Important Foundation for Further Research
We would like to express appreciation to Slade et al for exploring on a population-based level the associations between pain prevalence and allostatic load. The relationship between pain and stress has been recognized conceptually; however, studies evaluating the purported dynamics are limited. The selection of allostatic load provides a solid framework from which to initiate the evaluation of possible systemic dysregulation contributing to or resulting from chronic pain conditions. The authors establish an important foundation for further scientific effort in an area with high relevance for patients, providers, and resea...
Source: The Journal of Pain - November 26, 2012 Category: Materials Science Authors: Kimberly T. Sibille, Joseph L. Riley, Bruce McEwen Tags: Letter to the Editor Source Type: research
The Communal Coping Model and Cancer Pain: The Roles of Catastrophizing and Attachment Style
This study examined pain catastrophizing, attachment style and relational context in relation to perceived solicitous, distracting, and punishing responses of significant others to pain in 191 patients with advanced cancer. Consistent with the CCM, higher pain catastrophizing was related to more frequent solicitous and distracting responses. Pain catastrophizing, attachment anxiety, and significant other type interacted in relation to punishing responses. Higher pain catastrophizing was related to less frequent punishing responses only in anxiously attached patients who identified their spouse/partner as their significant ...
Source: The Journal of Pain - November 26, 2012 Category: Materials Science Authors: Lynn R. Gauthier, Gary Rodin, Camilla Zimmermann, David Warr, S. Lawrence Librach, Malcolm Moore, Frances A. Shepherd, Lucia Gagliese Tags: Original Reports Source Type: research
Evaluation of the Psychometric Properties of the Revised Short-Form McGill Pain Questionnaire
This article presents the psychometric properties of a revised version of the SF-MPQ-2. This measure may have great utility as a screening tool in clinical practice and as an outcome measure in clinical trials.
Source: The Journal of Pain - November 26, 2012 Category: Materials Science Authors: Travis I. Lovejoy, Dennis C. Turk, Benjamin J. Morasco Tags: Original Reports Source Type: research
Sex Differences in Exercise-Induced Muscle Pain and Muscle Damage
Abstract: There is uncertainty about sex differences in exercise-induced muscle pain and muscle damage due to several methodological weaknesses in the literature. This investigation tested the hypothesis that higher levels of exercise-induced muscle pain and muscle damage indicators would be found in women than men when several methodological improvements were executed in the same study. Participants (N = 33; 42% women) with an average age of 23 years (SD = 2.82) consented to participate. After a familiarization session, participants visited the laboratory before and across 4 days after eccentric exercise was completed...
Source: The Journal of Pain - November 26, 2012 Category: Materials Science Authors: Erin A. Dannecker, Ying Liu, R. Scott Rector, Tom R. Thomas, Roger B. Fillingim, Michael E. Robinson Tags: Original Reports Source Type: research
Differential Effects of Low Dose Lidocaine on C-Fiber Classes in Humans
This study reveals that microneurography can be used to assess pharmacological effects on single C-fibers directly in humans.
Source: The Journal of Pain - November 26, 2012 Category: Materials Science Authors: Jennifer Kankel, Otilia Obreja, Inge Petter Kleggetveit, Roland Schmidt, Ellen Jørum, Martin Schmelz, Barbara Namer Tags: Original Reports Source Type: research
Traditional Acupuncture Triggers a Local Increase in Adenosine in Human Subjects
This study strengthens the role of adenosine in acupuncture-mediated antinociception by directly providing such evidence in humans.Perspective: This article presents further evidence of the role of adenosine in acupuncture-mediated antinociception by demonstrating that local adenosine concentrations increase in the acupoint in human subjects receiving traditional acupuncture.
Source: The Journal of Pain - November 26, 2012 Category: Materials Science Authors: Takahiro Takano, Xiaolin Chen, Fang Luo, Takumi Fujita, Zeguang Ren, Nanna Goldman, Yuanli Zhao, John D. Markman, Maiken Nedergaard Tags: Original Reports Source Type: research
Identification of Patient Subgroups and Risk Factors for Persistent Breast Pain Following Breast Cancer Surgery
Abstract: Study purposes were to determine the prevalence of persistent pain in the breast; characterize distinct persistent pain classes using growth mixture modeling; and evaluate for differences among these pain classes in demographic, preoperative, intraoperative, and postoperative characteristics. In addition, differences in the severity of common symptoms and quality of life outcomes measured prior to surgery, among the pain classes, were evaluated. Patients (n = 398) were recruited prior to surgery and followed for 6 months. Using growth mixture modeling, patients were classified into no (31.7%), mild (43.4%), moder...
Source: The Journal of Pain - November 26, 2012 Category: Materials Science Authors: Christine Miaskowski, Bruce Cooper, Steven M. Paul, Claudia West, Dale Langford, Jon D. Levine, Gary Abrams, Deborah Hamolsky, Laura Dunn, Marylin Dodd, John Neuhaus, Christina Baggott, Anand Dhruva, Brian Schmidt, Janine Cataldo, John Merriman, Bradley E Tags: Original Reports Source Type: research
Systemic Administration of an Alpha-7 Nicotinic Acetylcholine Agonist Reverses Neuropathic Pain in Male Sprague Dawley Rats
This study tested whether systemic delivery of an α7 nAChR agonist attenuates neuropathic pain and associated immune-mediated pro-inflammation. Hind paw response thresholds to mechanical stimuli in male Sprague Dawley rats were assessed before and after sciatic chronic constriction injury (CCI) or sham surgery. Osmotic mini-pumps containing TC-7020, an α7 nAChR selective agonist, were implanted 10 to 14 days after surgery. TC-7020 (1, 3, and 10 mg/kg/d; s.c.) significantly attenuated CCI-induced allodynia, which lasted through 2 weeks of test compound administration. Spinal cords were collected after 2 weeks and processe...
Source: The Journal of Pain - November 26, 2012 Category: Materials Science Authors: Lisa C. Loram, Frederick R. Taylor, Keith A. Strand, Steven F. Maier, Jason D. Speake, Kristen G. Jordan, John W. James, Steven P. Wene, Robert C. Pritchard, Heather Green, Katherine Van Dyke, Anatoly Mazarov, Sharon R. Letchworth, Linda R. Watkins Tags: Original Reports Source Type: research
Activation of Lattice
Oxygen of TiO2 by
Pd2+ Ion: Correlation of Low-Temperature CO and Hydrocarbon
Oxidation with Structure of Ti1–xPdxO2–x (x = 0.01–0.03)
Chemistry of MaterialsDOI: 10.1021/cm301704u
Source: Chemistry of Materials - November 26, 2012 Category: Materials Science Authors: Bhaskar Devu Mukri, Gargi Dutta, Umesh V. Waghmare and M. S. Hegde Source Type: research
Enhanced Electrical Conductivity
of Silver Nanoparticles
for High Frequency Electronic Applications
ACS Applied Materials & InterfacesDOI: 10.1021/am3022569
Source: ACS Applied Materials and Interfaces - November 26, 2012 Category: Materials Science Authors: Ali H. Alshehri, Malgorzata Jakubowska, Anna Młożniak, Michal Horaczek, Diana Rudka, Charles Free and J. David Carey Source Type: research
Ferroferric Oxide/Multiwalled
Carbon Nanotube vs Polyaniline/Ferroferric
Oxide/Multiwalled Carbon Nanotube Multiheterostructures for Highly
Effective Microwave Absorption
ACS Applied Materials & InterfacesDOI: 10.1021/am3021069
Source: ACS Applied Materials and Interfaces - November 26, 2012 Category: Materials Science Authors: Mao-Sheng Cao, Jian Yang, Wei-Li Song, De-Qing Zhang, Bo Wen, Hai-Bo Jin, Zhi-Ling Hou and Jie Yuan Source Type: research
Cutting and Unzipping
Multiwalled Carbon Nanotubes
into Curved Graphene Nanosheets and Their Enhanced Supercapacitor
Performance
ACS Applied Materials & InterfacesDOI: 10.1021/am302000z
Source: ACS Applied Materials and Interfaces - November 26, 2012 Category: Materials Science Authors: Huanwen Wang, Yalan Wang, Zhongai Hu and Xuefeng Wang Source Type: research
Transformation of ZnO
Nanobelts into Single-Crystalline Mn3O4 Nanowires
ACS Applied Materials & InterfacesDOI: 10.1021/am301670x
Source: ACS Applied Materials and Interfaces - November 26, 2012 Category: Materials Science Authors: Chan Woong Na, Seung-Young Park, Jae-Ho Chung and Jong-Heun Lee Source Type: research
Ultrasound-Triggered BSA/SPION
Hybrid Nanoclusters
for Liver-Specific Magnetic Resonance Imaging
ACS Applied Materials & InterfacesDOI: 10.1021/am301301f
Source: ACS Applied Materials and Interfaces - November 26, 2012 Category: Materials Science Authors: Bingbo Zhang, Qi Li, Peihao Yin, Yuanpeng Rui, Yanyan Qiu, Yan Wang and Donglu Shi Source Type: research
An Easily Accessible Donor−π-Acceptor-Conjugated
Small Molecule from a 4,8-Dialkoxybenzo[1,2-b:4,5-b′]dithiophene Unit for Efficient
Solution-Processed Organic Solar Cells
ACS Applied Materials & InterfacesDOI: 10.1021/am301841p
Source: ACS Applied Materials and Interfaces - November 26, 2012 Category: Materials Science Authors: Pranabesh Dutta, Jeongseok Kim, Seung Hun Eom, Woo-Hyung Lee, In Nam Kang and Soo-Hyoung Lee Source Type: research
Peritoneal Administration of Met-RANTES Attenuates Inflammatory and Nociceptive Responses in a Murine Neuropathic Pain Model
In this study, we investigated the potential of the Met-RANTES, a selective CCL5 receptor antagonist, via peritoneal administration to modulate the recruitment of inflammatory cells in injured sites and attenuate nociceptive responses in a neuropathic pain model in mice. Nociceptive sensitization, immune cell infiltration, multiple cytokine secretion, and opioid peptide expression in damaged nerves were studied. Our results indicated that Met-RANTES-treated mice had less behavioral hypersensitivity after partial sciatic nerve ligation. Macrophage infiltration, pro-inflammatory cytokine (TNFα, IL-1β, IL-6, and IFNγ) prot...
Source: The Journal of Pain - November 26, 2012 Category: Materials Science Authors: Jiin-Tarng Liou, Chih-Chieh Mao, Daniel Ching-Wah Sum, Fu-Chao Liu, Ying-Shu Lai, Jui-Chin Li, Yuan-Ji Day Tags: Original Reports Source Type: research
MRI for attenuation correction in PET: methods and challenges
Abstract In current combined PET/MR systems, PET attenuation correction is based on MRI, since the small bore inside MRI systems and
the strong magnetic field do not permit a rotating PET transmission source or a CT device to be integrated. Unlike CT measurements
in PET/CT scanners, the MR signal is not directly correlated to tissue density and thus cannot be converted by a simple transformation
of intensity values. Various approaches have been developed based on templates, atlas information, direct segmentation of
T1-weighted MR images, or segmentation of images from special MR sequences. The advantages and...
Source: Magnetic Resonance Materials in Physics, Biology and Medicine - November 25, 2012 Category: Materials Science Tags: Magnetic Resonance Materials in Physics, Biology and Medicine Source Type: research
Ab-initio crystal structure prediction by combining symmetry analysis representations and total energy calculations. An insight into the structure of Mg(BH4)2"
Phys. Chem. Chem. Phys., 2012, Accepted ManuscriptDOI: 10.1039/C2CP43090H, PaperRiccarda Caputo, Arkadiusz Kupczak, Wieslawa Sikora, Adem TekinIn materials science there is an increasing need for developing a robust and reliable first-principle approach capable of predicting crystal structures, by taking only the stoichiometry as an input. We...The content of this RSS Feed (c) The Royal Society of Chemistry
Source: RSC - Phys. Chem. Chem. Phys. latest articles - November 24, 2012 Category: Chemistry Authors: Riccarda Caputo Source Type: research
New Structures Self-Assemble In Synchronized Dance
With self-assembly guiding the steps and synchronization providing the rhythm, a new class of materials forms dynamic, moving structures in an intricate dance. Researchers from the University of Illinois and Northwestern University have demonstrated tiny spheres that synchronize their movements as they self-assemble into a spinning microtube. Such in-motion structures, a blending of mathematics and materials science, could open a new class of technologies with applications in medicine, chemistry and engineering. The results will be published in the Nov. 22 edition of the journal Nature...
Source: Health News from Medical News Today - November 24, 2012 Category: Consumer Health News Tags: Medical Devices / Diagnostics Source Type: news
Systematic numerical investigation of the role of hierarchy in heterogeneous bio-inspired materials.
Abstract
It is well known that hierarchical structure is an important feature in biological materials to optimise various properties, including mechanical ones. It is however still unclear how these hierarchical architectures can improve material characteristics, for example strength. Also, the transposition of these structures from natural to artificial bioinspired materials remains to be perfected. In this paper, we introduce a numerical method to evaluate the strength of fibre-based heterogeneous biological materials and systematically investigate the role of hierarchy. Results show that hierarchy indeed plays a...
Source: Journal of the Mechanical Behavior of Biomedical Materials - November 24, 2012 Category: Materials Science Authors: Bosia F, Della Croce F, Pugno NM Tags: J Mech Behav Biomed Mater Source Type: research
Materials science: One size cloaks all
Scientists have developed a metamaterial invisibility cloak that can adapt to hide different sized objects. The findings represent a useful advance for more practical applications of metamaterial cloaking.
Source: ScienceDaily Headlines - November 23, 2012 Category: Science Source Type: news
New structures self-assemble in synchronized dance
With self-assembly guiding the steps and synchronization providing the rhythm, a new class of materials forms dynamic, moving structures in an intricate dance. Researchers have demonstrated tiny spheres that synchronize their movements as they self-assemble into a spinning microtube. Such in-motion structures, a blending of mathematics and materials science, could open a new class of technologies with applications in medicine, chemistry and engineering.
Source: ScienceDaily Headlines - November 21, 2012 Category: Science Source Type: news
Processing,
Morphology,
and Water Uptake of Nafion/Ex
situ Stöber Silica Nanocomposite Membranes As a Function of
Particle Size
ACS Applied Materials & InterfacesDOI: 10.1021/am301931e
Source: ACS Applied Materials and Interfaces - November 21, 2012 Category: Materials Science Authors: Beatrice Muriithi and Douglas A. Loy Source Type: research
Opportunities with Fabric Composites as Unique Flexible
Substrates
ACS Applied Materials & InterfacesDOI: 10.1021/am3017812
Source: ACS Applied Materials and Interfaces - November 21, 2012 Category: Materials Science Authors: Samuel A. Pendergraph, Michael D. Bartlett, Kenneth R. Carter and Alfred J. Crosby Source Type: research
Effect of Indium Segregation on the Surface versus
Bulk Chemistry for Indium-Doped TiO2
ACS Applied Materials & InterfacesDOI: 10.1021/am301729z
Source: ACS Applied Materials and Interfaces - November 21, 2012 Category: Materials Science Authors: Armand J. Atanacio, Tadeusz Bak and Janusz Nowotny Source Type: research
Strong bioresorbable Ca phosphate-PLA nanocomposites with uniform phase distribution by attrition milling and high pressure consolidation.
Abstract
Highly dense bioresorbable Ca-deficient HA-PLA (CDHA-PLA) and β-TCP-PLA nanocomposite materials with high (up to 80vol%) contents of the calcium phosphate (CaP) phase and homogeneous phase distribution were prepared via attrition milling followed by high pressure consolidation at ambient temperature. The microstructure and mechanical properties of the materials obtained were studied as a function of milling time and PLA amount. Attrition milling resulted in disintegration of β-TCP powder agglomerates down to 50-150nm, disintegration of CDHA agglomerates and refinement of 15×150nm(2) CDHA nanoparticles t...
Source: Journal of the Mechanical Behavior of Biomedical Materials - November 21, 2012 Category: Materials Science Authors: Rakovsky A, Gotman I, Rabkin E, Gutmanas EY Tags: J Mech Behav Biomed Mater Source Type: research
Finite element dependence of stress evaluation for human trabecular bone.
In conclusion, we found that element formulation is almost important as element size when evaluating trabecular bone mechanical behavior at trabeculae scale. Therefore, element type should be chosen carefully when evaluating trabecular bone behavior using FEM.
PMID: 23246384 [PubMed - as supplied by publisher]
Source: Journal of the Mechanical Behavior of Biomedical Materials - November 21, 2012 Category: Materials Science Authors: Depalle B, Chapurlat R, Walter-Le-Berre H, Bou-Saïd B, Follet H Tags: J Mech Behav Biomed Mater Source Type: research
Computational materials science: Substitution with vision
A method has been developed for predicting the stability and elasticity of certain alloys for millions of atomic configurations of the materials. This approach should help to identify materials with optimized properties. See Letter p.740
Source: Nature - November 21, 2012 Category: Research Authors: Gus L. W. Hart Tags: News & Views Source Type: research
Materials science: Synchronized tumbling particles
Magnetic particles have been made that undergo synchronized oscillations when suspended in liquid in a rotating magnetic field. This discovery links the fields of nonlinear dynamics and materials science. See Letter p.578
Source: Nature - November 21, 2012 Category: Research Authors: Sabine H. L. Klapp Tags: News & Views Source Type: research
