An electrochemical sensor based on molecularly imprinted polydopamine coated on reduced graphene oxide for selective detection of ornidazole

Güney S.

Electroanalysis, vol.35, no.7, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 35 Issue: 7
  • Publication Date: 2023
  • Doi Number: 10.1002/elan.202200477
  • Journal Name: Electroanalysis
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, BIOSIS, Chemical Abstracts Core, Chimica, Communication Abstracts, Metadex, Civil Engineering Abstracts
  • Keywords: electrochemical sensor, electrochemically reduced graphene oxide, molecularly imprinted polydopamine, ornidazole
  • Istanbul Technical University Affiliated: Yes

Abstract

The electrochemical sensing of ornidazole (OR) was achieved with a highly selective sensor fabricated by a combination of an electrochemically reduced graphene oxide (ERGO) and molecularly imprinted polydopamine (PDA). The sensor (OR-imp@PDA/ERGO/GCE) was synthesized by electrochemical polymerization of dopamine (DA) on ERGO modified glassy carbon electrode (GCE). The analytical response of the sensor changed linearly with OR concentration varying from 1.5 × 10−9 M to 1.0 × 10−8 M and 1.0 × 10−8 M to 2.0 × 10−7 M, and the detection limit was defined as 1.1 × 10−9 M. The proposed sensor ensured the highly sensitive detection of OR concentration because of the advantages of ERGO and molecularly imprinted PDA.