ZnS nanoparticles decorated graphene nanoplatelets as immobilisation matrix for glucose biosensor
https://doi.org/10.17586/2220-8054-2016-7-4-637-642
Abstract
A glucose biosensor has been fabricated by using ZnS nanoparticle-substituted graphene nanosheets. Thermally exfoliated graphene nanosheets act as a suitable support for the deposition of ZnS nanoparticles. In this work, graphene was functionalized with ZnS nanoparticles by a simple chemical reduction method. The synthesized G/ZnS nanoparticles have been characterized using X-ray diffractometry (XRD), Transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), FT-IR techniques. Aditionally, the Glucose biosensor has been constructed by drop-casting G/ZnS over a conductive carbon support followed by the deposition of Glucose oxidase (GOx) over a G/ZnS electrode. The performance of the biosensor was investigated by an electrochemical method. The resultant bioelectrode retains its biocatalytic activity and offers fast, highly-sensitive glucose quantification and a shelf-life of about 10 weeks under refrigerated conditions.
About the Authors
G. Suganthi
Central Leather Research Institute
India
India
Bio products laboratory
Adyar, Chennai 600 036, Tamil Nadu
T. Arockiadoss
Madurai Kamaraj University
India
India
Department of physics
Madurai 625021
T. S. Uma
Central Leather Research Institute
Russian Federation
Russian Federation
Bio products laboratory
Adyar, Chennai 600 036, Tamil Nadu
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Review
For citations:
Suganthi G., Arockiadoss T., Uma T.S. ZnS nanoparticles decorated graphene nanoplatelets as immobilisation matrix for glucose biosensor. Nanosystems: Physics, Chemistry, Mathematics. 2016;7(4):637-642. https://doi.org/10.17586/2220-8054-2016-7-4-637-642
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