By a News Reporter-Staff News Editor at Life Science Weekly -- Current study results on Enzymes and Coenzymes have been published. According to news originating from Shanghai, People's Republic of China, by NewsRx correspondents, research stated, "Increasing attention has been given to nano-biocatalysis for commercial applications. In this study, laccase was immobilized on polyacrylonitrile (PAN) nanofibrous membranes through ethanol/HCl method of amidination reaction and successfully applied for removal of 2,4,6-trichlorophenol (TCP) from water."
Our news journalists obtained a quote from the research from Tongji University, "PAN membranes with fiber diameters from 200 nm to 300 nm were fabricated via electrospinning and provided a large surface area for enzyme immobilization and catalytic reactions. Images of scanning electron microscope demonstrated the enzyme molecules were aggregated on the nanofiber surface. The immobilized laccase exhibited 72% of the free enzyme activity and kept 60% of its initial activity after 10 operation cycles. Moreover, the storage stability of the immobilized laccase was considered excellent because they maintained more than 92% of the initial activity after 18 days of storage, whereas the free laccase retained only 20%. The laccase-PAN nanofibrous membranes exhibited high removal efficiency of TCP under the combined actions of biodegradation and adsorption. More than 85% of the TCP was removed under optimum conditions. Effects of various factors on TCP removal efficiency of the immobilized laccase were analyzed."
According to the news editors, the research concluded: "Results suggest that laccase PAN nanofibrous membranes can be used in removing TCP from aqueous sources and have potential for use in other commercial applications."
For more information on this research see: Laccase-Polyacrylonitrile Nanofibrous Membrane: Highly Immobilized, Stable, Reusable, and Efficacious for 2,4,6-Trichlorophenol Removal. ACS Applied Materials & Interfaces, 2013;5(23):12554-12560. ACS Applied Materials & Interfaces can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; ACS Applied Materials & Interfaces - www.pubs.acs.org/journal/aamick)
The news correspondents report that additional information may be obtained from R. Xu, Tongji Univ, State Key Lab Pollut Control & Resource Reuse, Coll Environm Sci & Engn, Shanghai 200092, People's Republic of China. Additional authors for this research include C.L. Chi, F.T. Li and B.R. Zhang (see also Enzymes and Coenzymes).
Keywords for this news article include: Asia, Laccase, Shanghai, Oxidoreductases, Enzymes and Coenzymes, People's Republic of China
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