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    • Keywords


      Nanocomposites; H$_2$O$_2$; graphene; ZnS; chitosan; horseradish peroxidase.

    • Abstract


      A simple and novel sensor of hydrogen peroxide (H$_2$O$_2$) was designed successfully. Horseradish peroxidase (HRP) is effectively immobilized on the surface of chitosan (CHI)-stabilized zinc sulphide (ZnS)/graphene(G) nanocomposites modified carbon paper electrode (CPE). The interaction between HRP enzyme and H$_2$O$_2$ was studied from modified CPE. The catalytic performance of the biosensor was examined using cyclic voltammetry (CV) and the obtained results indicated that the prepared ZnS/G/CHI/HRP/NA/CPE nanocomposites material holds excellent catalytic performance for the H$_2$O$_2$ detection. The proposed biosensor showed good analytical performance and long-term storage stability. The repeatability of the sensor is checked up to eight cycles.

    • Author Affiliations



      1. Biological Materials Laboratory, CSIR-Central Leather Research Institute (CLRI), Chennai 600020, India
      2. Department of Physics, Madurai Kamaraj University, Madurai 625021, India
    • Dates

  • Bulletin of Materials Science | News

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      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
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    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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