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Investigators at Istanbul Technical University Report Findings in Desalination [Effect of silver nanoparticle (AgNP) location in nanocomposite...

August 26, 2014



Investigators at Istanbul Technical University Report Findings in Desalination [Effect of silver nanoparticle (AgNP) location in nanocomposite membrane matrix fabricated with different polymer type on antibacterial mechanism]

By a News Reporter-Staff News Editor at Life Science Weekly -- Data detailed on Desalination have been presented. According to news reporting out of Istanbul, Turkey, by NewsRx editors, research stated, "Biofouling is one of the most serious problems for membrane processes and the nanocomposite membranes having silver nanoparticle have been used widespread to control it. Silver nanoparticles (AgNP) can prevent the capability of bacteria permanently attaching to the membrane surface."

Our news journalists obtained a quote from the research from Istanbul Technical University, "However this mechanism depends on the location of AgNP into membrane matrix. The location of AgNP can change depending on the polymer type and phase inversion parameters. This study demonstrates the effect of polymer types on AgNP location into membrane matrix. Polysulfone (PS), polyethersulfone (PES) and cellulose acetate (CA) polymers were used for fabrication of flat-sheet bare and nanocomposite membranes. The location of AgNP in membrane matrix was determined according to viscosity measurements of dope solutions, AFM, SEM-EDS and contact angle analysis. It was found that AgNPs should mostly accumulate onto the top and skin layers of PES and PS nanocomposite membranes while it settled down the sublayer of CA nanocomposite membrane. The location of AgNP into membrane matrix changed to the bacteriostatic effects of nanocomposite membranes because the interaction between AgNP and bacteria depends on the release of ionic silver from AgNP embedded in membrane."

According to the news editors, the research concluded: "The nanocomposite membranes which stored AgNP at surface had the best antibacterial properties."

For more information on this research see: Effect of silver nanoparticle (AgNP) location in nanocomposite membrane matrix fabricated with different polymer type on antibacterial mechanism. Desalination, 2014;347():120-130. Desalination can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Desalination - www.elsevier.com/wps/product/cws_home/502683)

Our news journalists report that additional information may be obtained by contacting M. Sile-Yuksel, Istanbul Technical University, Natl Res Center Membrane Technol, TR-34469 Istanbul, Turkey. Additional authors for this research include B. Tas, D.Y. Koseoglu-Imer and I. Koyuncu (see also Desalination).

Keywords for this news article include: Turkey, Eurasia, Istanbul, Desalination

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Life Science Weekly


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