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Updated: Jun 28, 2026

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Preparation of Silicon Nanowire Field-effect Transistor for Chemical and Biosensing Applications
Published on: April 21, 2016
Ultrasensitive detection of dopamine using a polysilicon nanowire field-effect transistor
Chih-Heng Lin1, Cheng-Yun Hsiao, Cheng-Hsiung Hung
1Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, 300, Taiwan.
Abstract:
An unprecedented high sensitive sensing of neurotransmitter dopamine at fM level was demonstrated using a poly-crystalline silicon nanowire field-effect transistor (poly-SiNW FET) fabricated by employing a simple and low-cost poly-Si sidewall spacer technique, which was compatible with current commercial semiconductor processes for large-scale standard manufacture.
