نتایج جستجو برای: silver accumulation

تعداد نتایج: 194697  

2006
G. Roesijadi

Marine mussels Mytilus edulis were transplanted reciprocally from relatively pristine Sequim Bay to a metal-contaminated site at Tacoma (both Washington State, USA) and vice versa. We studied temporal patterns of trace metal accumulation by the mussels, metal incorporation into subcellular compartments (low molecular weight, metal-binding proteins, lysosome-like vesicles) and condition index (a...

Journal: :Green Processing and Synthesis 2022

Abstract Traditional fertilization not only enhances the acidification of soil but also leads toward eutrophication. Here stimulatory and inhibitory effects foliar Cordia based silver nanoparticles (AgNPs) were studied on lettuce ( Lactuca sativa L.) biomass accumulation, antioxidant activity, morphological anatomical modifications. The AgNPs supplied with a concentration 25, 50, 100 ppm along ...

Journal: :Green Processing and Synthesis 2021

Abstract Artemisia absinthium L. is a highly medicinal plant with broad range of biomedical applications. A. callus cultures were established in response to bio-fabricated single NPs (Ag and Cu) or combination both different ratios (1:2, 2:1, 1:3, 3:1) along thidiazuron (TDZ) (4 mg/L) elicit the biomass accumulation, production non-enzymatic compounds, antioxidative enzymes, antioxidant activit...

Journal: :Comparative biochemistry and physiology. Toxicology & pharmacology : CBP 2002
C Hogstrand C M Wood N R Bury R W Wilson J C Rankin M Grosell

The intestine has been indicated as a site of waterborne silver toxicity in marine fish and chronic effects at the intestine have been observed at concentrations far below acutely toxic level. Thus, models of silver toxicity to marine fish need to consider the intestine as a biotic ligand. The present study characterises binding of silver to the intestine of the European flounder (Platichthys f...

P.K. Praseetha, R.P Dhanya S. Abdeen S. Geo S. Sukanya

Silver is composed of a large percentage of silver oxide due to their large ratio of surface to bulk silver atoms. Silver nanoparticles have been a potent antibacterial, antifungal, anti-viral and anti-inflammatory agent. A simple, eco-friendly, inexpensive biosynthetic method was employed to synthesize silver nanoparticles.  The present study aimed at the comparative study of silver nanopartic...

Journal: :journal of nanostructures 2013
m. ghorbanpour

the aim of this study is experimental assay of sensitivity and stability of a bimetallic silver/gold spr sensor chip. this chip utilizes the sensitivity of the silver and the stability of the gold. moreover, the silver layer (instead of usual cr or ti layer) was used as an adhesive intermediate layer between the gold layer and the glass substrate. the optimization of the gold/silver thickness u...

2011
Deborah J Gorth David M Rand Thomas J Webster

BACKGROUND Consumer nanotechnology is a growing industry. Silver nanoparticles are the most common nanomaterial added to commercially available products, so understanding the influence that size has on toxicity is integral to the safe use of these new products. This study examined the influence of silver particle size on Drosophila egg development by comparing the toxicity of both nanoscale and...

Journal: :international journal of health studies 0
babak negahdari1 1. dept. of medical biotechnology, school of advanced technologies in medicine, tehran university of medical sciences, tehran, iran. mohammad hasan shirazi2 2. dept. of pathobiology, school of public health, tehran university of medical science, tehran, iran. maryam kadkhodazadeh3 3. dept. of clinical biochemistry, shaheed beheshti university of medical sciences, tehran, iran. ziba vaise malekshahi1 solmaz sadeghi1 sara hajikhani 2

background: according to the recent studies, the antibacterial activities of silver nanoparticles (ag-nps) were studied on gram-positive staphylococcus aureus and gram-negative escherichia coli. in this study antibacterial effect of silver nanoparticles that used for coating textiles, on e.coli and s.aureus was investigated. methods: silver nanoparticles were coated on textile fabric by corona ...

Journal: :journal of advanced medical sciences and applied technologies 0
alireza ebrahiminezhad fasa university of medical sciences mohammad javad raee zahra manafi abdolreza sotoodeh jahromi younes ghasemi

silver has been known and used as a potent antimicrobial and wound healing agent since ancient time. silver compounds have had other ancient applications through which greeks, romans and egyptians had used silver compounds as food and water preservative. silver and silver-based antimicrobials were put away after the discovery of antibiotics. meanwhile, with almost a century application of antib...

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