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Chitosan polymer matrix-derived nanocomposite (CuS/NSC) for non-enzymatic electrochemical glucose sensor

  • Krishna Prasad Sharma
  • , Miyeon Shin
  • , Ganesh Prasad Awasthi
  • , Milan Babu Poudel
  • , Han Joo Kim*
  • , Changho Yu*
  • *Corresponding author for this work
  • Jeonbuk National University

Research output: Contribution to journalJournal articlepeer-review

Abstract

In this study, N and S co-doped chitosan polymer matrix-derived composite (CuS/NSC) was synthesized via a one-step hydrothermal technique using a low-cost copper complex of chitosan polymer. Cyclic voltammetry and chronoamperometry revealed excellent electrocatalytic performance. The glucose sensor exhibited a linear range of 160 μM to 11.76 mM, a low detection limit 2.72 μM and a sensitivity of 13.62 mA mM−1 cm−2 with an excellent linear response. Furthermore, the sensor also displayed selectivity for glucose over potential interfering agents and exhibited a satisfactory recovery percentage using real sample in human serum. The results demonstrate that, CuS/NSC is an efficient nanocomposite material for non-enzymatic glucose sensors and is applicable for glucose detection in biological fluids.

Original languageEnglish
Pages (from-to)708-717
Number of pages10
JournalInternational Journal of Biological Macromolecules
Volume206
DOIs
StatePublished - 2022.05.1

Keywords

  • Chitosan
  • Copper sulfide
  • Glucose
  • Hydrothermal method
  • Sensitivity

Quacquarelli Symonds(QS) Subject Topics

  • Biological Sciences

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