H2O2 biosensor based on horseradish peroxidase immobilized onto the zinc sulphide–graphene–chitosan modified carbon paper electrode

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...

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Bibliographic Details
Published inBulletin of materials science Vol. 44; no. 1; p. 70
Main Authors Suganthi, G, Ramanathan, Giriprasath, Arockiadoss, T, Sivagnanam, Uma Tiruchirapalli
Format Journal Article
LanguageEnglish
Published Bangalore Indian Academy of Sciences 01.03.2021
Springer Nature B.V
Subjects
Biosensors
Carbon
Chemicals
Chemistry and Materials Science
Chitosan
Electrodes
Engineering
Enzymes
Fourier transforms
Graphene
Hydrogen peroxide
Materials Science
Morphology
Nanocomposites
Nanoparticles
Peroxidase
Potassium
Scanning electron microscopy
Stability analysis
Storage stability
Zinc sulfide
chitosan
Nanocomposites
horseradish peroxidase
H
graphene
ZnS
O
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Summary: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.
ISSN:0250-4707
0973-7669
DOI:10.1007/s12034-021-02358-w