Synthesis and Characterization of Novel Quinone‐Amine Polymer/Carbon Nanotubes Composite for Sensitive Electrocatalytic Detection of NADH |
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| Authors: | Xinman Tu Qingji Xie Zhao Huang Qin Yang Shouzhuo Yao |
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| Affiliation: | Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P.R. China |
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| Abstract: | A novel nanocomposite of quinone‐amine polymer and multiwalled carbon nanotubes was synthesized from iodate‐oxidation/Michael addition reaction of 1,2‐dihydroxybenzene with o‐phenylenediamine, which was characterized by TEM, FTIR and UV‐vis spectra. The nanocomposite modified Au electrode with well‐defined quinone redox peaks effectively mediated the oxidation of NADH in pH 7.0 phosphate buffer, with an overpotential decrease by ca. 470 mV (vs. bare Au), a limit of detection of 6.4 nmol L?1 and good antiinterferent ability. |
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| Keywords: | Quinone‐amine polymer Carbon nanotubes Nanocomposite Electrocatalysis NADH assay |
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