نتایج جستجو برای: nano silver

تعداد نتایج: 94611  

H. Hashemipour Rafsanjani S. Shams Sh. Pourseyedi

Silver nano-particles have different biological applications due to their compatibility. Chemical methods usually result in remaining some amounts of toxic reactions on the nano-particles. For this reason, the use of plants as sustainable and accessible resources in preparation of compatible nano-particles has attracted a lot of attention in the recent years. This research investigated the gree...

2015
Xiaolong Deng Anton Yu Nikiforov Tom Coenye Pieter Cools Gaelle Aziz Rino Morent Nathalie De Geyter Christophe Leys

An antimicrobial nano-silver non-woven polyethylene terephthalate (PET) fabric has been prepared in a three step process. The fabrics were first pretreated by depositing a layer of organosilicon thin film using an atmospheric pressure plasma system, then silver nano-particles (AgNPs) were incorporated into the fabrics by a dipping-dry process, and finally the nano-particles were covered by a se...

Journal: :international journal of nano dimension 0
m. kargar razi islamic azad university, north tehran branch, iran. s. azadi islamic azad university, north tehran branch, iran. r. sarraf mamoory tarbiat modares university, tehran, iran. m. mohammadi mouteh gold complex, iran.

according to the unique properties and many applications of nano silver powder, it was prepared from acid leaching tail solution. the low value residual gold and silver ions were occurred with fellow heavy metals as pollutants (fe2+, cu 2+ and zn2+) in acid leaching tail solution in mouteh gold mine in iran. preparation of nano silver particles was achieved in two steps: first, by addition of a...

Journal: :Medycyna pracy 2013
Elzbieta Jankowska Joanna Łukaszewska

BACKGROUND Unique properties of engineered nanomaterials (ENMs) and products made of them have contributed to a rapid progress in the production and application of ENMs in different branches of industry and in factories with different production scale. Bearing in mind that nano-objects (nanoplates, nanofibres, nanoparticles), emitted during ENM production and application, can cause many disease...

Davood Moghadamnia, Zohreh Parang,

Background: Silver nano-particles have anti-fungal properties. In the present study, silver nano-particles were synthesized by electrochemical method and its effects on the serum levels ofT3 and T4 hormones were investigated in adult male rats. Methods: In this experimental study, 28 adult male Wistar rats weighing approximately 180-220g were divided into 4 groups of 7 rats. The control grou...

2014
Firouz Faedmaleki Farshad H Shirazi Amir-Ahmad Salarian Hamidreza Ahmadi Ashtiani Hossein Rastegar

Nano-silver (AgNP) has biological properties which are significant for consumer products, food technology, textiles and medical applications (e.g. wound care products, implantable medical devices, in diagnosis, drug delivery, and imaging). For their antibacterial activity, silver nanoparticles are largely used in various commercially available products. Thus, the use of nano-silver is becoming ...

Journal: :iranian journal of chemical engineering 0
yasaman hamedani department of polymer engineering, science and research branch, islamic azad university, p.o.box 14155/4933, tehran, iran naghmeh fazeli department of polymer engineering, science and research branch, islamic azad university, p.o.box 14155/4933, tehran, iran. jalal barzin iran polymer and petrochemical institute, p.o. box 14965/115, tehran, iran

silver sulfadiazine is used to prevent and treat infections of second- and third-degree burns. it kills a wide variety of bacteria. in this study silver sulfadiazine was used in gelatin based electro-spun nano-fibers with various drug to polymer ratios (0, 5, 10, 15 and 20 %). sem, edx and ftir analysis showed that the continuous, bead-free, fine fibers containing silver sulfadiazine as an anti...

2015
Eric LK Chan Chengfei Zhang Gary SP Cheung

PURPOSE The aim of this study was to evaluate the cytotoxic effect of a novel nano-silver particle (25.2±6.5 nm) endodontic irrigant (0.2 mM) and compare it with 3% sodium hypochlorite. MATERIALS AND METHODS Two cell types, mouse fibroblast National Institutes of Health 3T3 (NIH 3T3) and primary human periodontal ligament stem cell (hPDLSCs) were used in a test for the effect of direct and in...

2016
Rakesh Sharma Ravi Kumar Sahil Mittal Amandeep Kaur

NTRODUCTION Silver is well known as an antiseptic agent (silver nitrate and silver sulphadiazine) for ages. However, the delivery system in the form of a salt has been a limiting factor for its successful and widespread biological use. The development of nanochemistry has produced micro fine particles which increase silver's solubility and releases silver ions in concentration of 70-100 ppm. Na...

2011
Samel Arslanagic Yan Liu Radu Malureanu Richard W. Ziolkowski

Electromagnetic properties of cylindrical active coated nano-particles comprised of a silica nano-cylinder core layered with a plasmonic concentric nano-shell are investigated for potential nano-sensor applications. Particular attention is devoted to the near-field properties of these particles, as well as to their far-field radiation characteristics, in the presence of an electric or a magneti...

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