Enzyme-free nickel electrochemical glucose sensor fabricated on pencil graphite electrode by electrodeposition

Oskay K. O., Özkan B.

Journal of Materials Science: Materials in Electronics, cilt.34, sa.7, 2023 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 34 Sayı: 7
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1007/s10854-023-10048-y
  • Dergi Adı: Journal of Materials Science: Materials in Electronics
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Applied Science & Technology Source, Chemical Abstracts Core, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, MEDLINE, Metadex, Civil Engineering Abstracts
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

In this study, the optimal conditions for the electrodeposition of nickel foam-like morphology over a pencil graphite electrode for glucose sensor application are determined. The effects of NiSO4 and NH4Cl concentrations, current density, and electrodeposition time were investigated in detail. The electrochemical performance of the nickel deposit for sensing glucose is investigated by cyclic voltammetry and chronoamperometry in alkaline solutions. Under optimized conditions, the sensitivity of the sensor toward glucose oxidation was 125.9 μA/μM.cm2 and showed a linear response in a wide range of glucose concentrations, from 2 to 8000 µM. We conclude that the nickel foam-like electrode has the potential to be used as a glucose sensor due to its superior features such as low cost and fast deposition time.