Results 251 to 260 of about 116,842 (300)

Coarsening of metal oxide nanoparticles

Physical Review E, 2002
In solution phase synthesis of nanoparticles, processes such as coarsening and aggregation can compete with nucleation and growth in modifying the particle size distribution in the system. We show that coarsening of ZnO and TiO2 nanoparticles in solution follows the Lifshitz-Slyozov-Wagner rate law for diffusion controlled coarsening originally derived
Gerko, Oskam, Zeshan, Hu, R Lee, Penn, Noshir, Pesika, Peter C, Searson   +4 more
openaire   +2 more sources

Aggregation-Dependent Oxidation of Metal Nanoparticles

Journal of the American Chemical Society, 2017
Here we describe the effect of aggregation on the oxidation of citrate-stabilized Au nanoparticles (NPs) attached electrostatically to amine-functionalized glass/ITO electrodes. When the Au NPs are attached to the electrode from a solution with pH greater than ∼3.0, they are well-separated on the electrode and oxidize in bromide-containing electrolyte ...
Stacy L. Allen, Jay N. Sharma, Francis P. Zamborini   +2 more
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Metal oxide nanoparticles with low toxicity

Journal of Photochemistry and Photobiology B: Biology, 2015
A number of different nanomaterials produced and incorporated into various products are rising. However, their environmental hazards are frequently unknown. Here we consider three different metal oxide compounds (SnO2, In2O3, and Al2O3), which have not been extensively studied and are expected to have low toxicity.
Djurisic, A, Lee, HK, Chan, WK, Leung, KMY, Leung, FCC, Ng, AMC, GUO, M, Leung, YH, Chan, CMN, Wong, WY, YUNG, MNM, Ma, APY   +11 more
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Peptide binding to metal oxide nanoparticles

Faraday Discussions, 2017
Magnetic metal oxide nanoparticles demonstrate great applicability in several fields such as biotechnology, medicine and catalysis. A stable, magnetic and low-cost material, nanoscale magnetite, is an interesting adsorbent for protein purification.
S. P. Schwaminger, S. A. Blank-Shim, I. Scheifele, P. Fraga-García, S. Berensmeier   +4 more
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Metal and Metal Oxide Nanoparticles

Cancer is one of the most pressing global health challenges. Despite significant advancements in conventional therapies, mortality rates for some cancers are still high. Key barriers, such as multidrug resistance, tumor heterogeneity, non-specific targeting, toxicity, and late-stage diagnosis, limit the efficacy of existing therapies.
Radhakrishnan E K, Riju K Thomas, Divya NG   +2 more
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Toxicity of Metal Oxide Nanoparticles

2018
In the recent times, nanomaterials are used in many sectors of science, medicine and industry, without revealing its toxic effects. Thus, it is in urgent need for exploring the toxicity along with the application of such useful nanomaterials. Nanomaterials are categorized with a particle size of 1-100 nm.
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Nanotoxicity: Oxidative Stress Mediated Toxicity of Metal and Metal Oxide Nanoparticles

Journal of Nanoscience and Nanotechnology, 2014
Metal and metal oxide nanoparticles are often used as industrial catalysts or to improve product's functional properties. Recent advanced nanotechnology have been expected to be used in various fields, ranging from sensors, environmental remediation to biomedicine, medical biology and imaging, etc.
Abhijit, Sarkar, Manoranjan, Ghosh, Parames Chandra, Sil   +2 more
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Neurotoxicity and mechanism of metal and metal oxide nanoparticles

Chemico-Biological Interactions
Metal and metal oxide nanoparticles, owing to their unique physicochemical properties, have been extensively applied in biomedicine, cell labeling and sorting, drug delivery, and clinical therapy. Their impact on human health and environmental safety is increasingly drawing attention.
Shouying, Cao, Meng, Tang, Changcun, Bai
openaire   +2 more sources

Dissolution of metal and metal oxide nanoparticles in aqueous media

Environmental Pollution, 2014
The dissolution of Ag (citrate, gelatin, polyvinylpyrrolidone and chitosan coated), ZnO, CuO and carbon coated Cu nanoparticles (with two nominal sizes each) has been studied in artificial aqueous media, similar in chemistry to environmental waters, for up to 19 days.
Niksa Odzak, David Kistler, Renata Behra, Laura Sigg   +3 more
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Metal nanoparticle catalysts decorated with metal oxide clusters

Chemical Communications, 2012
Au nanoparticles decorated with mononuclear Ti-oxo units dispersed in silica clusters were formed by activating Au nanoparticles (~2 nm) stabilized with Ti- and amine-functionalized siloxane oligomers. These Au nanoparticles were active catalysts for selective oxidation of propane to acetone, and the activity increased with increasing Ti density.
Neema A, Mashayekhi, Yi Y, Wu, Mayfair C, Kung, Harold H, Kung   +3 more
openaire   +2 more sources