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Fabrication and Characterization of Zinc Oxide Nanowire Based Two‐electrode Capacitive Biosensors on Flexible Substrates for Estimating Glucose Content in a Sample
Author(s) -
Chakraborty Subhadip,
Saha Rajib,
Karmakar Anupam,
Chattopadhyay Sanatan
Publication year - 2021
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.202060343
Subject(s) - diffractometer , materials science , polyethylene terephthalate , fabrication , nanowire , biosensor , zinc , electrode , capacitive sensing , capacitance , nanotechnology , characterization (materials science) , scanning electron microscope , dielectric , optoelectronics , glucose oxidase , analytical chemistry (journal) , chemistry , composite material , metallurgy , electrical engineering , chromatography , medicine , alternative medicine , engineering , pathology
The present work deals with fabrication and characterization of the zinc oxide (ZnO) nanowire based novel two‐electrode capacitive biosensors on flexible Polyethylene terephthalate (PET) substrates for accurate estimation of glucose by analyzing the fundamental dielectric nature of the relevant sample. The morphology and crystalline quality of grown nanowires are analyzed by using field‐emission scanning electron microscope (FESEM) and X‐ray diffractometer (XRD), respectively. Current and capacitance values of the device have been studied for ten different glucose concentrations relevant to the physiological standards. The analytical performance of the devices in terms of enzyme activity, reliability and flexibility has also been evaluated.