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http://dx.doi.org/10.5229/JKES.2007.10.2.150

Synthesis of Osmium Redox Complex and Its Application for Biosensor Using an Electrochemical Method  

Choi, Young-Bong (Department of Chemistry and Institute of Basic Sciences, Dankook University)
Kim, Hyug-Han (Department of Chemistry and Institute of Basic Sciences, Dankook University)
Publication Information
Journal of the Korean Electrochemical Society / v.10, no.2, 2007 , pp. 150-154 More about this Journal
Abstract
Redox complexes to transport electrodes from biomaterial to electrodes are very important part in commercial biosensor industry. A novel osmium redox complex was synthesized by the coordinating pyridine group with osmium metal. A novel osmium complex is described as $[Os(dme-bpy)_2(ap-im)Cl]^{+/2+}$. We have been studied the electrochemical characteristics of this osmium complex with electrochemical techniques such as cyclic voltammetry and chronoamperommetry. In order to immobilize osmium redox complexes on the electrode, we deposited gold nano-particles on screen printed carbon electrode(SPE). The electrical signal converts the osmium redox films into an electrocatalyst for glucose oxidation. The catalytic currents were monitored that the catalytic currents were linearly increased from 1 mM to 5 mM concentrations of glucose.
Keywords
Redox complexes; Biosensor; Electrocatalyst;
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