News Column

New Findings from Y. Umasankar and Co-Authors in the Area of Oxidoreductases Reported

June 3, 2014

By a News Reporter-Staff News Editor at Life Science Weekly -- A new study on Enzymes and Coenzymes is now available. According to news reporting originating from Danville, Virginia, by NewsRx correspondents, research stated, "A high performance laccase-based biofuel cell cathode is developed using carbon nanosheets (CNS) as the catalyst support and buckypaper (BP) as the substrate electrode. Compared to multiwalled carbon nanotube (MWNT)-based electrodes, CNS-based electrodes exhibit better electrochemical properties for the oxygen reduction reaction (ORR) under biologically relevant conditions."

Our news editors obtained a quote from the research, "It is shown that CNSs are conformally coated on the nanotubule bundles within the BP and that laccase is intimately attached to the CNS-BP. Electrochemical characterization is carried out to derive the kinetic parameters of the ORR at the laccase-CNS-BP cathode. The laccase-CNS-BP exhibits a steep ORR cathodic wave with a Tafel slope of 19 mV decade(-1)."

According to the news editors, the research concluded: "The onset potential obtained for laccase ORR at CNS-BP is 20 mV higher than that of the MWNT-based electrodes, and the laccase-CNS-BP cathode has a higher current density than MWNT electrodes."

For more information on this research see: Three Dimensional Carbon Nanosheets as a Novel Catalyst Support for Enzymatic Bioelectrodes. Advanced Energy Materials, 2014;4(6):35-43. Advanced Energy Materials can be contacted at: Wiley-V C H Verlag Gmbh, Boschstrasse 12, D-69469 Weinheim, Germany. (Wiley-Blackwell -; Advanced Energy Materials -

The news editors report that additional information may be obtained by contacting Y. Umasankar, Luna Innovat Inc, Luna NanoWorks Div, Danville, VA 24541, United States. Additional authors for this research include D.B. Brooks, B. Brown, Z.G. Zhou and R.P. Ramasamy (see also Enzymes and Coenzymes).

Keywords for this news article include: Laccase, Danville, Virginia, Chemistry, Nanosheets, United States, Nanotechnology, Electrochemical, Oxidoreductases, Emerging Technologies, Enzymes and Coenzymes, North and Central America

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Source: Life Science Weekly

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