News Column

New Hemeproteins Findings Has Been Reported by Investigators at Technical University

June 27, 2014

By a News Reporter-Staff News Editor at Science Letter -- Investigators discuss new findings in Proteins. According to news originating from Wildau, Germany, by NewsRx correspondents, research stated, "Fully electroactive multilayer architectures combining the redox protein cytochrome c and the enzyme laccase by the use of silica nanoparticles as artificial matrix have been constructed on gold electrodes capable of direct dioxygen reduction. Laccase form Trametes versicolor and cytochrome c from horse heart were electrostatically coimmobilized by alternate deposition with interlayers of silica nanoparticles in a multilayer fashion."

Our news journalists obtained a quote from the research from Technical University, "The layer formation has been monitored by quartz crystal microbalance. The electrochemical properties and performance of the nanobiomolecular entities were investigated by cyclic voltammetry, indicating, that a multistep electron transfer cascade, from the electrode via cytochrome c in the layered system toward the enzyme laccase, and here to molecular dioxygen was achieved."

According to the news editors, the research concluded: "The response of the novel architecture is based on direct electron exchange between immobilized proteins and can be tuned by the assembly process."

For more information on this research see: Electroactive Nanobiomolecular Architectures of Laccase and Cytochrome c on Electrodes: Applying Silica Nanoparticles as Artificial Matrix. Langmuir, 2014;30(19):5363-5367. Langmuir can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society -; Langmuir -

The news correspondents report that additional information may be obtained from S.C. Feifel, Technical Univ Appl Sci, Inst Appl Sci, D-15745 Wildau, Germany. Additional authors for this research include A. Kapp and F. Lisdat (see also Proteins).

Keywords for this news article include: Wildau, Europe, Germany, Cytochromes, Hemeproteins, Nanoparticle, Nanotechnology, Emerging Technologies

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Source: Science Letter

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