نتایج جستجو برای: 1 and silver nanoparticles with concentrationsof 5

تعداد نتایج: 18885093  

2015
JohnSamuel Godwin PanneerSelvam Ezilrani

The aim of this study was to optimize the biosynthesis of silver nanoparticles using leaves of Aegle marmelos as the primary source. The optimal reaction medium comprised 2:1 concentration of leaf extract and 6mM concentration of silver nitrate solution (pH 7. The biosynthesized silver nanoparticles were confirmed by UV-Vis spectroscopy at 420 nm, XRD and FTIR analysis. The antimicrobial proper...

Journal: :Journal of Nanobiotechnology 2005
Jose Luis Elechiguerra Justin L Burt Jose R Morones Alejandra Camacho-Bragado Xiaoxia Gao Humberto H Lara Miguel Jose Yacaman

The interaction of nanoparticles with biomolecules and microorganisms is an expanding field of research. Within this field, an area that has been largely unexplored is the interaction of metal nanoparticles with viruses. In this work, we demonstrate that silver nanoparticles undergo a size-dependent interaction with HIV-1, with nanoparticles exclusively in the range of 1-10 nm attached to the v...

محسن زاده, ساسان, کریمی , جواد,

 Background: Nanotechnology is a principally attractive area of research related with production of nanoparticles of variable sizes, shapes, chemical compositions, dispersity and their possible application for human being benefits. Creation, manipulation and utilization of metallic nanoparticles, because of reduction of materials dimensions, affect the physical properties and results i...

2009
hing-Wei Shen Tiing Yu

Size separation of silver nanoparticles was investigated in counter-current chromatography (CCC) based on a unique step-gradient extraction process. Carboxylate anions were modified on silver nanoparticles to produce water-dispersible nanoparticles. The aqueous nanoparticles were readily transferred to the organic phase (toluene/hexane = 1:1, v/v) together with the phase transfer catalyst, tetr...

This research was done to investigate the effects of Nano-iron spray, the chemical synthesis of silver nanoparticles and the green synthesis of silver nanoparticles on chamomile plant( Tanacetum parthenium). It was done in the form of a completely random factorial design with three replications in the greenhouse of the agricultural college of Zabol university. The treatments included the first ...

2015
Á. Szegedi M. Popova J. Valyon A. Guarnaccio A. De Stefanis A. De Bonis S. Orlando M. Sansone R. Teghil A. Santagata

Hexagonally ordered mesoporous silica materials MCM-41 and SBA-15 have been synthesized and loaded with Ag nanoparticles, utilizing both chemical synthesis and ultrashort pulsed laser ablation in liquid. In laser ablation, a silver target, immersed in aqueous suspension of ordered mesoporous silica SBA-15, was irradiated by ultra-short laser pulses to generate silver nanoparticles. For comparis...

Journal: :Nanoscale 2014
Michael Layani Peter Darmawan Wan Ling Foo Liang Liu Alexander Kamyshny Daniel Mandler Schlomo Magdassi Pooi See Lee

Printed electrochromic flexible films were obtained by combining transparent silver grid electrodes formed by self-assembly and inkjet printed WO3 nanoparticles. Concentrated dispersions of WO3 nanoparticles were inkjet printed on transparent plastic silver grid electrodes with a high transparency of 83% in the spectral range of 400-800 nm, and a low sheet resistance in the range of 1-5 Ω sq(-1...

2013
Swapnil Gaikwad Avinash Ingle Aniket Gade Mahendra Rai Annarita Falanga Novella Incoronato Luigi Russo Stefania Galdiero Massimilano Galdiero

The interaction between silver nanoparticles and viruses is attracting great interest due to the potential antiviral activity of these particles, and is the subject of much research effort in the treatment of infectious diseases. In this work, we demonstrate that silver nanoparticles undergo a size-dependent interaction with herpes simplex virus types 1 and 2 and with human parainfluenza virus ...

B. Deva Prasad Raju B. Praveen G. Narasimha, K. Mallikarjuna

In this paper we report an eco-friendly route for the synthesis of sliver nanoparticles using Agaricus bisporus (white button mushroom) extract. The synthesized silver nanoparticles were confirmed and characterized by UV-Visible spectrum of the aqueous solution containing silver ions showed a peak at 420 nm corresponding to the surface plasmon absorbance of silver nanoparticles. Transm...

Here we reported the extremely simple one-pot synthesis of silver and gold nanoparticles in a rapid manner. Aqueous leaf extract of the most admired energy plant Jatropha curcas is used as reducing agent here. An alternate and safe energy source, house-hold microwave oven constituted the reaction chamber. Silver and gold nanoparticles were characterized by UV-visible, FT-IR, Powder XRD techniqu...

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