Electrochemical Polymerization of 2-Thiophen-3-yl-malonic Acid for Biosensor Application

Celik G., EREN E., Uygun A.

JOURNAL OF APPLIED POLYMER SCIENCE, vol.128, no.1, pp.636-641, 2013 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 128 Issue: 1
  • Publication Date: 2013
  • Doi Number: 10.1002/app.38205
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.636-641
  • Süleyman Demirel University Affiliated: Yes


Poly(2-thiophene-3-yl-malonic acid) (P3TMA) was synthesized electrochemically using tetrabutylammonium perchlorate (TBAClO(4)) as electrolyte into acetonitrile (ACN) for glucose biosensor application. The properties of P3TMA were investigated using FTIR, SEM, and electrochemical measurements. The glucose oxidase enzyme (GOD) was chemically immobilized onto P3TMA modified electrode using glutaraldehyde as crosslinking. It was observed that response current of P3TMA/GOD enzyme electrode increased linearly with loading glucose concentration. Michaelis Menten constant (K-m) of P3TMA/GOD enzyme electrode was calculated as 0.03517 mM. FTIR and SEM analyses were used to confirm immobilization of GOD onto surface of P3TMA-modified electrode. (C) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 128: 636-641, 2013