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Direct electrochemistry of microperoxidase at Pt microelectrodes modified with carbon nanotubes
Mingkui Wang1, Feng Zhao, Ying Liu
1State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.
Abstract:
Direct electrochemistry of microperoxidase (MP-11) was found at Pt microelectrodes modified with multi-wall carbon nanotubes (MWNTs). The MWNTs used as the immobilization matrix cooperatively promote the bioactivity of MP-11. When MP-11 was immobilized on MWNTs film-modified Pt microelectrodes, a pair of well-defined redox waves was obtained. The resulted stable microelectrode could be used to catalyze the reduction of H2O2 and O2.
