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An electrochemical enzyme-free glucose sensor based on bimetallic PtNi materials
- Source :
- Journal of Materials Science: Materials in Electronics. 32:23445-23456
- Publication Year :
- 2021
- Publisher :
- Springer Science and Business Media LLC, 2021.
-
Abstract
- This paper investigates a novel electrochemical enzyme-free glucose sensor based on bimetallic PtNi materials. Pt and Ni layer were sputtered on the substrate and then annealed to form bimetallic PtNi materials, which served as sensitive materials for glucose detection. The effect of annealing temperature on the performance of enzyme-free glucose sensors had been studied deeply. Using micro-electromechanical systems (MEMS) technology, a monolithic enzyme-free glucose sensor was fabricated, which integrated with working electrode (WE) and counter electrode (CE) on a chip. The electrochemical results demonstrate that the device exhibits outstanding sensitivity and selectivity for glucose detection, achieving a maximal sensitivity of 1618.15 µA mM−1 cm−2 in the range of 0–10 mM with a low detection limit of 8.76 µM. The sensor also shows its practical application for glucose detection in human blood serum. Due to its performance and fabrication process, the enzyme-free glucose sensor is therefore well suited for glucose detection and manufacture together with other integrated circuits on a single silicon wafer, which shows potentials in implantable microelectronic systems.
- Subjects :
- Detection limit
Microelectromechanical systems
Auxiliary electrode
Working electrode
Materials science
business.industry
Substrate (electronics)
Condensed Matter Physics
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
Optoelectronics
Microelectronics
Wafer
Electrical and Electronic Engineering
business
Bimetallic strip
Subjects
Details
- ISSN :
- 1573482X and 09574522
- Volume :
- 32
- Database :
- OpenAIRE
- Journal :
- Journal of Materials Science: Materials in Electronics
- Accession number :
- edsair.doi...........96fabbab074087996149afb2d7cd4780
- Full Text :
- https://doi.org/10.1007/s10854-021-06832-3