نتایج جستجو برای: silver nanoparticle

تعداد نتایج: 74001  

Control of size and shape is a challenge in nanoparticle synthesis. Synthetic and biosynthetic (both extracellular and intracellular) methods are used to prepare silver nanoparticle (SNP). In this study, the behavior of three strains of Staphylococcus aureus (S. aureus) was investigated in the presence of silver nitrate intra- and extracellularly. S. aureus strains biosynthesized SNPs intracell...

Control of size and shape is a challenge in nanoparticle synthesis. Synthetic and biosynthetic (both extracellular and intracellular) methods are used to prepare silver nanoparticle (SNP). In this study, the behavior of three strains of Staphylococcus aureus (S. aureus) was investigated in the presence of silver nitrate intra- and extracellularly. S. aureus strains biosynthesized SNPs intracell...

خدادادی, سمانه, مشایخ, امیر مسعود, نقش, نوشین,

Background and purpose: Nanotechnology researchers have identified a wide range of nanoparticle uses that may have an important role in medicine, prevention and treatment of diseases. Paucity of information on toxicity of silver nanoparticles made the authors to evaluate the effect of silver nanoparticles on the enzyme creatine phosphate kinase. Materials and methods: In this study, 40 adult m...

2013
Joanna Ellison Kristina Tschulik Emma J E Stuart Kerstin Jurkschat Dario Omanović Margitta Uhlemann Alison Crossley Richard G Compton

Anodic particle coloumetry is used to size silver nanoparticles impacting a carbon microelectrode in a potassium chloride/citrate solution. Besides their size, their agglomeration state in solution is also investigated solely by electrochemical means and subsequent data analysis. Validation of this new approach to nanoparticle agglomeration studies is performed by comparison with the results of...

Journal: :iranian journal of toxicology 0
برهان منصوری borhan mansouri phd student of ecotoxicology, student research committee, kurdistan university of medical sciences, sanandaj, iran. سید علی جوهری seyed ali johari department of fisheries, university of kurdistan, kurdistan, sanandaj, iran.

background: the increasing use of nanomaterials and nanoproducts has increased the possibility of contamination of the environment, which may have adverse effects on different organisms. the aim of this study was to evaluate the effects of silver nanoparticles on histopathology and gill ultrastructure of zebrafish (danio rerio) under laboratory conditions. methods: zebrafish were exposed to fou...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده شیمی 1387

چکیده ندارد.

2015
Mert Vural Adam M. Behrens Omar B. Ayyub Joseph J. Ayoub Peter Kofinas

Block copolymer silver nanoparticle composite elastic conductors were fabricated through solution blow spinning and subsequent nanoparticle nucleation. The reported technique allows for conformal deposition onto nonplanar substrates. We additionally demonstrated the ability to tune the strain dependence of the electrical properties by adjusting nanoparticle precursor concentration or localized ...

Journal: :Optics express 2011
Arash Farhang Olivier J F Martin

The transition from localized to delocalized plasmons (i.e. the transition from a situation where the decay length of a travelling surface plasma wave is greater than its propagation distance to a situation where it is smaller) and hence the onset of plasmon delocalization is studied in a single 2D silver nanoparticle of increasing length. A fourier analysis in the near-field of the nanoparticl...

2016
K. Ognik E. Cholewińska A. Czech K. Kozłowski Ł. Wlazło R. Szlązak K. Tutaj

The aim of the study was to analyze how per os application of hydrocolloids of silver nanoparticles (22 nm) and lipid-coated silver nanoparticles (5 nm) affect the immune, redox, and lipid status of the blood of broiler chickens. The experiment was conducted on 60 chickens. The first group was the control (Group C). The chickens in Group II received a silver nanoparticle hydrocolloid (Ag-nano) ...

Silver-Polyaniline (Ag-PANI) nanocomposites were prepared by in-situ oxidative polymerization of aniline monomer in sodium bis(2-ethylhexyl) sulfosuccinate (AOT) solution as an emulsifier. The synthesis of Silver-Polyaniline nanocomposites was investigated as a function of several parameters such as aniline concentration, concentration of emulsifier (AOT), concentration of oxidation agent and c...

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