TY - JOUR
T1 - Fabrication and Voltammetric Characters of Carbon Paste Electrode Modified Using Poly-Silk Peptide
JO - Journal of Fiber Bioengineering and Informatics
VL - 3
SP - 277
EP - 283
PY - 2013
DA - 2013/06
SN - 6
DO - http://doi.org/10.3993/jfbi09201305
UR - https://global-sci.org/intro/article_detail/jfbi/4841.html
KW - Silk Peptide
KW - Electropolymerization
KW - Carbon Paste Electrode
AB - 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^{-1} SP 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 H_2SO_4 solution (pH 1.1), resulting from the
successive redox reaction of -OH, -C=O and -COOH groups on poly-silk peptide.