Citation: |
Banpeng Cao, Changhao Dai, Xuejun Wang, Dacheng Wei. Ultrasensitive detection of methamphetamine by antibody-modified transistor assay[J]. Journal of Semiconductors, 2023, 44(2): 022001. doi: 10.1088/1674-4926/44/2/022001
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Banpeng Cao, Changhao Dai, Xuejun Wang, Dacheng Wei, Ultrasensitive detection of methamphetamine by antibody-modified transistor assay[J]. Journal of Semiconductors, 2023, 44(2), 022001 doi: 10.1088/1674-4926/44/2/022001
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Ultrasensitive detection of methamphetamine by antibody-modified transistor assay
DOI: 10.1088/1674-4926/44/2/022001
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Abstract
Effective detection of methamphetamine (Met) requires a fast, sensitive, and cheap testing assay. However, commercially available methods require expensive instruments and highly trained operators, which are time-consuming and labor-intensive. Herein, an antibody-modified graphene transistor assay is developed for sensitive and minute-level detection of Met in complex environments. The anti-Met probe captured charged targets within 120 s, leading to a p-doping effect near the graphene channel. The limit of detection reaches 50 aM (5.0 × 10−17 M) Met in solution. The graphene transistor would be a valuable tool for Met detection effective prevention of drug abuse. -
References
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§Banpeng Cao and Changhao Dai contributed equally to this work.