By a News Reporter-Staff News Editor at Biotech Week -- Investigators publish new report on Enzymes and Coenzymes. According to news reporting out of Beijing, People's Republic of China, by NewsRx editors, research stated, "Using structural characterizations and electrochemical measurements, we explored and investigated the effect of the structure of enzyme electrodes with glucose oxidase (GOD) that were modified by reduced graphene oxide (rGO) sheets. The rGO sheets with different defect density, layers, and oxygen concentrations were chosen to modify the enzyme electrode, and all the modified enzyme electrodes exhibited excellent electrocatalytic activities and performances towards glucose."
Our news journalists obtained a quote from the research from the University of Science and Technology, "The abundant defects in rGO induce easy absorption of GOD. At a low oxygen concentration, rGO sheets help to induce the direct electron transfer (DET) on the rGO-modified electrode, and at a higher oxygen concentration, the reduction of H2O2 occurred instead of DET on the surface of the rGO-modified electrode. When rGO modified the enzyme electrode under the working model of H2O2 reduction, an increase in the number of the oxygen functional groups could lead to an increase in the absorption of GOD, resulting in the improvement of the affinity and sensitivity of the biosensor."
According to the news editors, the research concluded: "The rGO-modified enzyme electrode can provide faster response, higher sensitivity, and better affinity by optimizing and controlling the structure of graphene and its derivatives."
For more information on this research see: Structure effect on graphene-modified enzyme electrode glucose sensors. Biosensors & Bioelectronics, 2014;52():281-287. Biosensors & Bioelectronics can be contacted at: Elsevier Advanced Technology, Oxford Fulfillment Centre The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, Oxon, England. (Elsevier - www.elsevier.com; Biosensors & Bioelectronics - www.elsevier.com/wps/product/cws_home/405913)
Our news journalists report that additional information may be obtained by contacting X.H. Zhang, Univ Sci & Technol Beijing, Sch Mat Sci & Engn, State Key Lab Adv Met & Mat, Beijing 100083, People's Republic of China. Additional authors for this research include Q.L. Liao, M.M. Chu, S. Liu and Y. Zhang (see also Enzymes and Coenzymes).
Keywords for this news article include: Asia, Beijing, Chalcogens, Enzymes and Coenzymes, People's Republic of China
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