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Silver Nanoparticles as an Intracanal Medicament: A Scoping Review
ScientificWorldJournal. 2023 Sep 11;2023:9451685. doi: 10.1155/2023/9451685. eCollection 2023.ABSTRACTSilver nanoparticles (AgNPs) release Ag ions with potent bactericidal and anti-inflammatory effects. They have shown promising results as an intracanal medicament for removing Enterococcus faecalis (E. faecalis), a resistant bacterium associated with root canal failures. This review summarizes the role of AgNPs as an intracanal medicament. Original research articles on AgNPs as an intracanal medicament were searched in databases such as MEDLINE (PubMed), Scopus, and Embase, resulting in 24 studies. They showed that AgNPs e...
Source: The Scientific World Journal - September 20, 2023 Category: Science Authors: Azra Kaukab Sumit Gaur Rupali Agnihotri Vani Taneja Source Type: research
Cerium oxide nanoparticles in diabetic foot ulcer management: Advances, limitations, and future directions
Colloids Surf B Biointerfaces. 2023 Sep 9;231:113535. doi: 10.1016/j.colsurfb.2023.113535. Online ahead of print.ABSTRACTDiabetic foot ulcer (DFU) is one of the most serious complications of diabetes, potentially resulting in wound infection and amputation under severe circumstances. Oxidative stress and dysbiosis are the primary factors that delay wound healing, posing challenges to effective treatment. Unfortunately, conventional approaches in these aspects have proven satisfactory in achieving curative outcomes. Recent research has increasingly focused on using nanoparticles, leveraging their potential in wound dressing...
Source: Colloids and Surfaces - September 20, 2023 Category: Biotechnology Authors: Haotian Xu Shiqi Li Xiaoxuan Ma Tingting Xue Fang Shen Yi Ru Jingsi Jiang Le Kuai Bin Li Hang Zhao Xin Ma Source Type: research
Assessment of the Alga < em > Cladophora glomerata < /em > as a Source for Cellulose Nanocrystals
Biomacromolecules. 2023 Sep 20. doi: 10.1021/acs.biomac.3c00380. Online ahead of print.ABSTRACTNanocellulose is isolated from cellulosic fibers and exhibits many properties that macroscale cellulose lacks. Cellulose nanocrystals (CNCs) are a subcategory of nanocellulose made of stiff, rodlike, and highly crystalline nanoparticles. Algae of the order Cladophorales are the source of the longest cellulosic nanocrystals, but manufacturing these CNCs is not well-studied. So far, most publications have focused on the applications of this material, with the basic manufacturing parameters and material properties receiving little a...
Source: Biomacromolecules - September 20, 2023 Category: Biochemistry Authors: Karl Mihhels Neptun Yousefi Jaanika Blomster Iina Solala Laleh Solhi Eero Kontturi Source Type: research
The composition, pharmacological effects, related mechanisms and drug delivery of alkaloids from Corydalis yanhusuo
Biomed Pharmacother. 2023 Sep 18;167:115511. doi: 10.1016/j.biopha.2023.115511. Online ahead of print.ABSTRACTCorydalis yanhusuo W. T. Wang, also known as yanhusuo, yuanhu, yanhu and xuanhu, is one of the herb components of many Chinese Traditional Medicine prescriptions such as Jin Ling Zi San and Yuanhu-Zhitong priscription. C. yanhusuo was traditionally used to relieve pain and motivate blood and Qi circulation. Now there has been growing interest in pharmacological effects of alkaloids, the main bioactive components of C. yanhusuo. Eighty-four alkaloids isolated from C. yanhusuo are its important bioactive components a...
Source: Biomedicine and pharmacotherapy = Biomedecine and pharmacotherapie - September 20, 2023 Category: Drugs & Pharmacology Authors: Jia-Hua Feng Kang Chen Si-Yu Shen Yun-Feng Luo Xi-Hong Liu Xin Chen Wei Gao Yu-Ru Tong Source Type: research
DNA is Better at Math than You Are
By KIM BELLARD
I was tempted to write about the work being done at Wharton that suggests that AI may already be better at being entrepreneurial than most of us, and of course I’m always interested to see how nanoparticles are starting to change health care (e.g., breast cancer or cancer more generally), but when I saw what researchers at China’s Shanghai Jiao Tong University have done with DNA-based computers, well, I couldn’t pass that up.
If PCs helped change the image of computers from the big mainframes, and mobile phones further redefined what a computer is, then DNA computers may cause us to one day...
Source: The Health Care Blog - September 20, 2023 Category: Consumer Health News Authors: matthew holt Tags: Health Tech DNA Future of Computing Kim Bellard Source Type: blogs
SMART RHESINs —Superparamagnetic Magnetite Architecture Made of Phenolic Resin Hollow Spheres Coated with Eu(III) Containing Silica Nanoparticles for Future Quantitative Magnetic Particle Imaging Applications (Small 38/2023)
Hollow NanospheresSMART RHESINs are novel iron oxide-filled hollow nanospheres coated with luminescent Eu(III) complex-containing silica nanoparticles. Unlike typical core/shell nanoparticles, SMART RHESINs retain unchanged effective Brownian and N éel relaxation even when fully immobilised in a viscous media. This unique behaviour makes SMART RHESINs potential quantitative magnetic particle imaging (MPI) probes for biological applications. More details can be found in article number2301997 by Esther S. R ösch and co-workers.
Source: Small - September 20, 2023 Category: Nanotechnology Authors: Julia Feye,
Jessica Matthias,
Alena Fischer,
David Rudolph,
Jens Treptow,
Radian Popescu,
Jochen Franke,
Annemarie L. Exarhos,
Zoe A. Boekelheide,
Dagmar Gerthsen,
Claus Feldmann,
Peter W. Roesky,
Esther S. R ösch Tags: Frontispiece Source Type: research
External Fields Assisted Highly Efficient Oxygen Evolution Reaction of Confined 1T ‐VSe2 Ferromagnetic Nanoparticles (Small 38/2023)
Confined 1T-VSe2 Ferromagnetic NanoparticlesIn article number2300122, Cailei Yuan, Shouguo Wang, and co-workers report confined 1T-VSe2 ferromagnetic nanoparticles in amorphous carbon matrix for external magnetic fields assisted highly efficient oxygen evolution reaction (OER). Benefiting from the confined structure and the high-efficient spin-related OER kinetics under external magnetic fields, the confined 1T-VSe2 ferromagnetic nanoparticles exhibit superior OER electrocatalytic activity and remarkable stability during the long-term OER operation.
Source: Small - September 20, 2023 Category: Nanotechnology Authors: Mingyue Chen,
Wenda Zhou,
Kun Ye,
Cailei Yuan,
Mengyuan Zhu,
Hao Yu,
Hongzhou Yang,
He Huang,
Yanfei Wu,
Jingyan Zhang,
Xinqi Zheng,
Jianxin Shen,
Xiao Wang,
Shouguo Wang Tags: Back Cover Source Type: research
Synthesis of Iron Sulfide Nanocrystals Encapsulated in Highly Porous Carbon ‐Coated CNT Microsphere as Anode Materials for Sodium‐Ion Batteries
In this study, a concept of highly porous carbon-coated carbon nanotube (CNT) porous microspheres, which serve as excellent reservoir materials is suggested and a porous microsphere is developed by encapsulating iron sulfide nanocrystals within the highly porous carbon-coated CNTs using a sulfidation process. Furthermore, various sulfidation processes to determine the optimal method for achieving complete encapsulation are investigated by comparing the morphologies of diverse iron sulfide-carbon composites. The fully encapsulated structure, combined with the porous carbon, provides ample space to accommodate the significan...
Source: Small - September 20, 2023 Category: Nanotechnology Authors: Yeong Beom Kim,
Hyo Yeong Seo,
Kyeong ‐Ho Kim,
Jung Sang Cho,
Yun Chan Kang,
Gi Dae Park Tags: Research Article Source Type: research
Ligand ‐Directed Shape Reconfiguration in Inorganic Materials
Shape-changing nanoparticles are synthesized using an asymmetrical surface functionalization method. Contrary to the prevalent view of inorganic clays as inflexible, it is found that the halloysite particles can reversibly switch their shape state upon altering ligand-driven chemistry, resulting from the unbalanced structural hindrance on the particle surface. AbstractPolymer elastomers with reversible shape-changing capability have led to significant development of artificial muscles, functional devices, and soft robots. By contrast, reversible shape transformation of inorganic nanoparticles is notoriously challenging due...
Source: Small - September 20, 2023 Category: Nanotechnology Authors: Nishat Paul,
Lecheng Zhang,
Shijun Lei,
Dali Huang,
Ling Wang,
Zhengdong Cheng,
Minxiang Zeng Tags: Research Article Source Type: research
Biohybrid Urchin ‐Like ZnO‐Based Microspheres with Tunable Hierarchical Structures and Enhanced Photoelectrocatalytic Properties
A novel biohybrid urchin-like magnetic ZnO microsphere with tunable hierarchical structures is produced, which integrates Fe3O4 nanoparticles layer and well-oriented 3D ZnO nanorod arrays shell with excellent controllability and stability. Compared with disordered ZnO nanoparticles and nanoflowers accumulation shell, this biohybrid structural design exhibits the best photoelectrocatalysis performances for pollutant degradation. AbstractMicroorganisms have attracted much attention to act as biotemplates for fabricating micro/nanostructured functional particles. However, it is still challenging to produce tunable hierarchica...
Source: Small - September 20, 2023 Category: Nanotechnology Authors: Hui Zhou,
Jun Cai,
Bo Gu,
Deyuan Zhang,
De Gong Tags: Research Article Source Type: research
Molecules, Vol. 28, Pages 6709: Facile Synthesis of Co Nanoparticles Embedded in N-Doped Carbon Nanotubes/Graphitic Nanosheets as Bifunctional Electrocatalysts for Electrocatalytic Water Splitting
ang
Zhipeng Xie
Developing robust and cost-effective electrocatalysts to boost hydrogen evolution reactions (HERs) and oxygen evolution reactions (OERs) is crucially important to electrocatalytic water splitting. Herein, bifunctional electrocatalysts, by coupling Co nanoparticles and N-doped carbon nanotubes/graphitic nanosheets (Co@NCNTs/NG), were successfully synthesized via facile high-temperature pyrolysis and evaluated for water splitting. The morphology and particle size of products were influenced by the precursor type of the cobalt source (cobalt oxide or cobalt nitrate). The pyrolysis product prepared using ...
Source: Molecules - September 20, 2023 Category: Chemistry Authors: Wei Yang Han Li Pengzhang Li Linhua Xie Yumin Liu Zhenbao Cao Chuanjin Tian Chang-An Wang Zhipeng Xie Tags: Article Source Type: research
Sensors, Vol. 23, Pages 7994: Solid-Phase Spectrometric Determination of Organic Thiols Using a Nanocomposite Based on Silver Triangular Nanoplates and Polyurethane Foam
mitrienko
Adsorption of silver nanoparticles on polymers may affect the processes in which they participate, adjusting the analytical characteristics of methods for the quantitation of various substances. In the present study, a composite material based on silver triangular nanoplates (AgTNPs) and polyurethane foam was proposed for chemical analysis. The prospects of its application for the solid-phase/colorimetric determination of organic thiols were substantiated. It was found that aggregation of AgTNPs upon the action of thiols is manifested by a decrease in the AgTNPs&rsquo; localized surface plasmon resona...
Source: Sensors - September 20, 2023 Category: Biotechnology Authors: Aleksei Furletov Vladimir Apyari Pavel Volkov Irina Torocheshnikova Stanislava Dmitrienko Tags: Article Source Type: research
Nanotube breakthroughs: unveiling the potential of carbon nanotubes as a dual therapeutic arsenal for Alzheimer ’s disease and brain tumors
Alzheimer’s disease (AD) and brain tumors are debilitating neurological conditions that pose significant challenges in current medical practices. Existing treatment options for AD primarily focus on symptom management, and brain tumors often require aggressive therapeutic approaches. Novel disease-modifying strategies and therapeutic agents are urgently needed to address the underlying causes of AD pathogenesis and improve brain tumor management. In recent years, nanoparticles (NPs) have shown promise as valuable tools in diagnosing and managing various brain disorders, including AD. Among these, carbon nanotubes (CNTs) ...
Source: Frontiers in Oncology - September 20, 2023 Category: Cancer & Oncology Source Type: research
High power density output and durability of microbial fuel cells enabled by dispersed cobalt nanoparticles on nitrogen-doped carbon as the cathode electrocatalyst
Phys. Chem. Chem. Phys., 2023, Advance Article DOI: 10.1039/D3CP02582A, PaperYuxian Yang, Jialuo Lin, Xin Li, Zhuoyue Chen, Yingyu Lin, Mengqing Xu, Weishan Li The cathode electrocatalyst Nano-Co@NC is synthesized from ZIF-67, exhibiting a high Co mass loading and enabling MFCs with a comparable initial power density to and better durability than that using Pt/C. 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 - September 19, 2023 Category: Chemistry Authors: Yuxian Yang Source Type: research
Palladium immobilized on guanidine functionalized magnetic nanoparticles: A highly effective and recoverable catalyst for ultrasound aided Suzuki-Miyaura cross coupling reactions
New J. Chem., 2023, Accepted Manuscript DOI: 10.1039/D3NJ03444E, PaperSumanth Hegde, Aatika Nizam, Ajesh Vijayan, Ramesh Dateer, Suresh Babu Naidu Krishna We designed and prepared a novel palladium catalyst that can be magnetically recyclable by anchoring guanidine moiety on the surface of Fe3O4 nanoparticles, and named as Fe3O4@SiO2-TCT-Gua-Pd. It was established... The content of this RSS Feed (c) The Royal Society of Chemistry
Source: RSC - New J. Chem. latest articles - September 19, 2023 Category: Chemistry Authors: Sumanth Hegde Source Type: research
