Preparation of biosensors by immobilization of polyphenol oxidase in conducting copolymers and their use in determination of phenolic compounds in red wine

Boyukbayram A. E., Kiralp S., Toppare L., Yagci Y.

BIOELECTROCHEMISTRY, vol.69, no.2, pp.164-171, 2006 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 69 Issue: 2
  • Publication Date: 2006
  • Doi Number: 10.1016/j.bioelechem.2006.01.006
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.164-171
  • Keywords: conducting polymer, copolymer, biosensor, polyphenol oxidase, immobilization, electrochemistry, determination of phenolic compounds, red wine, ENZYME ELECTRODES, GRAFT-COPOLYMERS, POLYPYRROLE, POLYTETRAHYDROFURAN, TYROSINASE, COMPOSITE, THIOPHENE
  • Middle East Technical University Affiliated: Yes


Electrochemically produced graft copolymers of thiophene capped polytetrahydofuran (TPTHF1 and TPTHF2) and pyrrole were achieved by constant potential electrolysis using sodium dodecylsulfate (SDS) as the supporting electrolyte. Characterizations were based on Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Electrical conductivities were measured by the four-probe technique.