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| Fabrication and Voltammetric Characters of Carbon Paste Electrode Modified Using Poly-Silk Peptide |
| Mingming Ma, Qiang Zhao, Zhi Tong |
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Abstract A new material poly-silk peptide was fabricated using the electropolymerization of Silk Peptide (SP) on the surface of a Carbon Paste Electrode (CPE) for the first time. The morphological feature of poly-silk peptide film was characterized by Scanning Electron Microscopy (SEM). The preparation conditions such as SP concentration, supporting electrolyte pH and scan cycles were optimized. A stable poly-silk peptide film could be obtained with scanning 16 cycles in pH7.4 Phosphate Buffer Solution (PBS) containing 0.6 g?¤L-1SP between -0.5 and +1.5V. In addition, a well-defined pair of oxidative and reductive peaks of poly-silk peptide was observed in 0.1M H2SO4solution (pH 1.1), resulting from the successive redox reaction of ?aOH, ?aC==O and ?aCOOH groups on poly-silk peptide.
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Mingming Ma,Qiang Zhao,Zhi Tong. Fabrication and Voltammetric Characters of Carbon Paste Electrode Modified Using Poly-Silk Peptide[J]. Journal of Fiber Bioengineering and Informatics, 2013, 6(3): 277-283.
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2013, Vol. 6 
