نتایج جستجو برای: nano silver powder

تعداد نتایج: 139526  

2010
Ji-Hun Yu Jai-Sung Lee Yong-Ho Choa Heinrich Hofmann

SiO2 coated γ-Fe2O3 nanocomposite powder has been successfully synthesized by chemical vapor condensation process and its feasibility on hyperthermic application was investigated in this study. The power loss of SiO2 coated γ-Fe2O3 nanocomposite powder which means the magnetic heating effect under alternative magnetic field was much higher than the single phase γ-Fe2O3 nano powder due to the ve...

2017
Chen-Chia Chou Chun-Yao Chang Guang-Yu Chen Wen-Jiao Liao Kuei-Chih Feng Chung-Ya Tsao

Electrode material for low-temperature co-fired diopside glass-ceramic used for microwave dielectrics was investigated in the present work. Diffusion of silver from the electrode to diopside glass-ceramics degrades the performance of the microwave dielectrics. Two approaches were adopted to resolve the problem of silver diffusion. Firstly, silicon-oxide (SiO₂) powder was employed and secondly c...

2011
H. B. Patil S. V. Borse D. R. Patil U. K. Patil H. M. Patil

The silver nanoparticles are synthesized by using microbial reduction of silver ions in the presence of fungus Aspergillus flavus . The fungus , Aspergillus flavus when challenged with silver nitrate solution accumulated silver nanoparticles on the surface of its cell wall in 96 hr . The silver nanoparticles synthesized are characterized by using UV-spectroscopy. An absorption peak at 420 nm in...

ژورنال: علمی شیلات ایران 2019

In this study, the toxicity of colloidal silver nanoparticles produced from three companies (US NANO, Pioneers, Nanonasb Pars) in the larvae of barnacles Amphibalanus amphitrite was evaluated using standard OECD. These crustaceans are important economically and ecologically. In this research, the LC50 within 24 hours for nauplius stages II, III, IV, V and VI examined against toxicity of the thr...

A Shams, M Darabi S Ebrahimi

Background Prostate cancer is the second most common cancers in the world which causing harms and waste cost. Furthermore more prostate treatments are in effective and lead to male infertility. Purpose of this study was to evaluate the role gamma radiation with silver nano particles in treatment of human prostate cancer cell line in vitro. MaterialsAndMethods Human prostate cancer cell line DU1...

2013
Hassan Korbekandi Gholamreza Asghari Susan Sadat Jalayer Maryam Sadat Jalayer Maedeh Bandegani

BACKGROUND The production of nanoparticles using a biosystem is considered green chemistry. Application of plant extracts as a biological process has been proven to be suitable for synthesis of nanoparticles. OBJECTIVES This study designed in order to evaluate the production of silver nanoparticles using Juglans regia leaf extract and to compare the outcome of different preparation methods of...

Journal: :jundishapur journal of natural pharmaceutical products 0
hassan korbekandi department of genetics & molecular biology, school of medicine, isfahan university of medical sciences, ir iran gholamreza asghari isfahan pharmaceutical sciences research center, school of pharmacy, isfahan university of medical sciences, ir iran susan sadat jalayer department of biotechnology, karaj payam noor university, ir iran +98-3117922644, [email protected]; department of biotechnology, karaj payam noor university, ir iran +98-3117922644, [email protected] maryam sadat jalayer department of science, tarbiat modares university, ir iran maedeh bandegani department of biotechnology, karaj payam noor university, ir iran +98-3117922644, [email protected]

background the production of nanoparticles using a biosystem is considered green chemistry. application of plant extracts as a biological process has been proven to be suitable for synthesis of nanoparticles. objectives this study designed in order to evaluate the production of silver nanoparticles using juglans regia leaf extract and to compare the outcome of different preparation methods of p...

Journal: :Materials research express 2023

Abstract This study investigated the separation of bovine serum albumin using a novel matrix mixed membrane composed poly vinyl pyrrolidone and (phenylene ether sulfone)/Nano-silver. The responsive bare modified PEES/Nano-silver membranes were evaluated morphology, wettability, XRD ATR-FTIR. molecular weight cut-off (MWCO), water content, mean pore radius, porosity, pure flux used to evaluate p...

2012
Kaliyamurthi Satyavani Selvaraj Gurudeeban Thiruganasambandam Ramanathan Thangavel Balasubramanian

Recently there has been fabulous excitement in the nano-biotechnological area for the study of nanoparticles synthesis using some natural biological system, which has led the growth advanced nanomaterials. This intention made us to assess the biologically synthesized silver nanoparticles from the leaf of Suaeda monoica (S.monoica) using 1 mM silver nitrate. The leaf extract of S.monoica incubat...

2016
Shih-kang Lin Shijo Nagao Emi Yokoi Chulmin Oh Hao Zhang Yu-chen Liu Shih-guei Lin Katsuaki Suganuma

Silver (Ag) is one of the seven metals of antiquity and an important engineering material in the electronic, medical, and chemical industries because of its unique noble and catalytic properties. Ag thin films are extensively used in modern electronics primarily because of their oxidation-resistance. Here we report a novel phenomenon of Ag nano-volcanic eruption that is caused by interactions b...

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