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Findings on Biological Macromolecules Reported by Investigators at Chungnam National University (Functional cellulose-based nanofibers with catalytic...

July 8, 2014



Findings on Biological Macromolecules Reported by Investigators at Chungnam National University (Functional cellulose-based nanofibers with catalytic activity: Effect of Ag content and Ag phase)

By a News Reporter-Staff News Editor at Life Science Weekly -- Investigators discuss new findings in Life Science Research. According to news originating from Taejon, South Korea, by NewsRx correspondents, research stated, "The cellulose acetate nanofibers containing Ag ions [CA(as-spun)] were fabricated by electrospinning a CA solution with 0-5 wt% AgNO3. The CA(as-spun) was UV-irradiated to produce CA nanofibers containing Ag ions/nanopaticles (NPs) [CA(UV)], and the CA(UV) was deacetylated to cellulose nanofibers with Ag NPs [CA(UV+ DA)]."

Our news journalists obtained a quote from the research from Chungnam National University, "When the CA(UV) was deacetylated with KOH/ethanol solution, the number and size of the Ag NPs were further increased. During the deacetylation reaction, residual Ag+ ions in the CA(UV) seemed to be reduced by hydroxide anions in KOH/ethanol solution and Ag NPs seemed to be diffused and aggregated further in the cellulose nanofibers. The catalytic activity of cellulose-based nanofibers with different Ag contents or phases was investigated using a reduction of methylene blue (MB) as a model reaction."

According to the news editors, the research concluded: "From a model reaction, Ag ions played an important role as a reducing catalyst of MB."

For more information on this research see: Functional cellulose-based nanofibers with catalytic activity: Effect of Ag content and Ag phase. International Journal of Biological Macromolecules, 2014;67():394-400. International Journal of Biological Macromolecules can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; International Journal of Biological Macromolecules - www.elsevier.com/wps/product/cws_home/525446)

The news correspondents report that additional information may be obtained from K.H. Jang, Chungnam National University, Dept. of Nanotechnol, Taejon 305764, South Korea. Additional authors for this research include Y.O. Kang and W.H. Park (see also Life Science Research).

Keywords for this news article include: Asia, Taejon, South Korea, Life Science Research

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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