A novel electrochemical biosensor based on polyimide- boron nitride composite membranes

AKSOY B., PASAHAN A., GÜNGÖR Ö., KÖYTEPE S., SEÇKİN T.

INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS, cilt.66, sa.4, ss.203-212, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 66 Sayı: 4
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1080/00914037.2016.1201763
  • Dergi Adı: INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.203-212
  • Anahtar Kelimeler: Amperometric biosensor, dopamine, membrane electrode, polyimide-boron nitride composites, GLASSY-CARBON ELECTRODE, ASCORBIC-ACID, HYPERBRANCHED POLYIMIDES, SELECTIVE-MEMBRANE, GLUCOSE BIOSENSOR, PASTE ELECTRODE, DOPAMINE, FILM, IMMOBILIZATION, INTERFERENTS
  • İnönü Üniversitesi Adresli: Evet

Özet

Polyimide (PI) and polyimide-boron nitride (PI-BN) composites as dopamine-selective membrane were synthesized. The structures of the monomer, pure PI, and PI-BN composites were characterized by FT-IR, SEM, and thermal analysis techniques. Experiment results showed that introduction of BN particles increased porosity, selectivity and improved heat-resistance of polyimide matrix. Selectivity of PI-BN composite membranes toward dopamine and interferences was examined by DPV technique. Electrochemical measurement results illustrated that polyimide membrane containing 5% BN possessed wide linear ranges, excellent sensitivity, selectivity, reversibility, and low detection limits (4 X 10(-8) M). The polyimide membrane was very high R value (0.9904).