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A robust enzymeless glucose sensor based on tin nickel sulfide nanocomposite modified electrodes

Authors
  • Chandrasekaran, Nivedhini Iswarya1
  • Harshiny, M.1
  • Thangasamy, Pitchai2
  • Matheswaran, Manickam3
  • 1 Indian Institute of Technology Madras, Chennai, 600036, India , Chennai (India)
  • 2 Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea , Daejeon (South Korea)
  • 3 National Institute of Technology Tiruchirappalli, Tiruchirappalli, Tamil Nadu, 620015, India , Tiruchirappalli (India)
Type
Published Article
Journal
Applied Physics A
Publisher
Springer-Verlag
Publication Date
Jan 02, 2021
Volume
127
Issue
1
Identifiers
DOI: 10.1007/s00339-020-04163-4
Source
Springer Nature
Keywords
License
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Abstract

AbstractTin-nickel sulfide nanocomposite deposited on nickel foam (TNS/NF) displays high electrocatalytic activity toward glucose oxidation. As an enzymeless glucose sensor, the TNS/NF sensing electrode shows a linear range of response from 3 to 5 mM, with a low detection limit of 0.18 μM signal-to-noise ratio of 3 and high sensitivity of 1622.9 μA mM−1 cm−2. In addition, the proposed sensing electrode shows a fast response time of less than 2 s on glucose addition. The resulting biosensor has high selectivity, excellent reproducibility, and long-term stability for glucose detection. It should be a worthy note; the TNS/NF could be successfully applied in determining glucose in a real blood sample at an applied voltage of 0.5 V.Graphic abstract

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