نتایج جستجو برای: silver nanoparticle

تعداد نتایج: 74001  

2017
Marianne Gunell Janne Haapanen Kofi J Brobbey Jarkko J Saarinen Martti Toivakka Jyrki M Mäkelä Pentti Huovinen Erkki Eerola

Bacterial infections, especially by antimicrobial resistant (AMR) bacteria, are an increasing problem worldwide. AMR is especially a problem with health care-associated infections due to bacteria in hospital environments being easily transferred from patient to patient and from patient to environment, and thus, solutions to prevent bacterial transmission are needed. Hand washing is an effective...

Journal: :Journal of The Adhesion Society of Japan 2008

2012
Henrik Schneidewind Thomas Schüler Katharina K Strelau Karina Weber Dana Cialla Marco Diegel Roland Mattheis Andreas Berger Robert Möller Jürgen Popp

Silver nanoparticles were synthesized by an enzyme-induced growth process on solid substrates. In order to customize the enzymatically grown nanoparticles (EGNP) for analytical applications in biomolecular research, a detailed study was carried out concerning the time evolution of the formation of the silver nanoparticles, their morphology, and their chemical composition. Therefore, silver-nano...

Journal: :Nanoscale 2012
S Dhar P Murawala A Shiras V Pokharkar B L V Prasad

The preparation of highly stable water dispersions of silver nanoparticles using the naturally available gellan gum as a reducing and capping agent is reported. Further, exploiting the gel formation characteristic of gellan gum silver nanoparticle incorporated gels have also been prepared. The optical properties, morphology, zeta potential and long-term stability of the synthesized silver nanop...

Journal: :Biomacromolecules 2014
Arcot R Lokanathan Khan Mohammad Ahsan Uddin Orlando J Rojas Janne Laine

Developing sustainable chemical methods to synthesize silver nanoparticles has drawn significant research interest. Due to their unique and well-defined physical-chemical properties, cellulose nanocrystals (CNCs) have become one of the most promising renewable nanomaterials. Here we use CNC to mediate silver nanoparticle synthesis and elucidate the effect of CNC surface chemistry (as defined by...

2012
Amadeus PZ Stevenson Duani Blanco Bea Sergi Civit Sonia Antoranz Contera Alberto Iglesias Cerveto Sonia Trigueros

Silver nanoparticles are extensively used due to their chemical and physical properties and promising applications in areas such as medicine and electronics. Controlled synthesis of silver nanoparticles remains a major challenge due to the difficulty in producing long-term stable particles of the same size and shape in aqueous solution. To address this problem, we examine three strategies to st...

Journal: :Chemical communications 2011
Zhiliang Zhang Yongqiang Wen Ying Ma Jia Luo Lei Jiang Yanlin Song

Highly stable silver nanoparticle-oligonucleotide conjugates were prepared. Based on the mixed DNA-functionalized silver nanoparticles (AgNPs), multiplex DNA detections were demonstrated successfully by SERS.

2015
Emerson Danguy Cavassin Luiz Francisco Poli de Figueiredo José Pinhata Otoch Marcelo Martins Seckler Roberto Angelo de Oliveira Fabiane Fantinelli Franco Valeria Spolon Marangoni Valtencir Zucolotto Anna Sara Shafferman Levin Silvia Figueiredo Costa

BACKGROUND Multidrug resistant microorganisms are a growing challenge and new substances that can be useful to treat infections due to these microorganisms are needed. Silver nanoparticle may be a future option for treatment of these infections, however, the methods described in vitro to evaluate the inhibitory effect are controversial. RESULTS This study evaluated the in vitro activity of si...

Journal: :Small 2009
Ray Gunawidjaja Eugenia Kharlampieva Ikjun Choi Vladimir V Tsukruk

It is demonstrated that bimetallic silver-gold anisotropic nanostructures can be easily assembled from various nanoparticle building blocks with well-defined geometries by means of electrostatic interactions. One-dimensional (1D) silver nanowires, two-dimensional (2D) silver nanoplates, and spherical gold nanoparticles are used as representative building blocks for bottom-up assembly. The gold ...

2015
R. Karthika S. P. Sevarkodiyone

1 Post-graduate & Research Department of Zoology, ANJA College (Autonomous), Sivakasi, India. *Corresponding Author E-mail: [email protected] Abstract The present study deals with synthesis and characterization of silver nanoparticles using aqueous extract of goat faecal pellets. The production of silver nanoparticles was analyzed by preliminary changes of colour from pale yellow to da...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید