TECH rxiv submission.pdf (1.21 MB)
Download fileHigh Performance CNTENFET with K/PPy/CNT nanocomposite biosensing layer for Cholesterol Detection
preprint
posted on 2021-03-10, 07:01 authored by Gaurav KeshwaniGaurav Keshwani, Jiten Chandra DuttaWe have reported a high-performance dual gated
carbon nanotube enzyme modified field-effect transistor (CNT-ENFET) for
cholesterol detection. To improve the
device performance, we have used dual-gate design with high κ dielectric as top
gate and low κ dielectric as bottom gate and a nanocomposite of potassium doped
carbon nanotube with polypyrrole (K/PPy/CNT) as the biosensing membrane. The
device exhibited a good sensitivity (~1.0 V/decade), low response time (~1 s),
wide dynamic range (0.1 - 25) mM, wide linear range (2-20 mM), low detection
limit (0.11 mM), good stability (7 months) and high selectivity (interference
~1.8 %).
History
Email Address of Submitting Author
gauravkeshwani@gmail.comORCID of Submitting Author
0000-0001-5860-8631Submitting Author's Institution
Tezpur UniversitySubmitting Author's Country
- India