检出限
石墨烯
晶体管
毒品检测
甲基苯丙胺
纳米技术
滥用药物
材料科学
极限(数学)
光电子学
色谱法
药品
化学
医学
电气工程
药理学
工程类
数学
数学分析
电压
作者
Banpeng Cao,Changhao Dai,Xuejun Wang,Dacheng Wei
出处
期刊:Journal of Semiconductors
[IOP Publishing]
日期:2023-02-01
卷期号:44 (2): 022001-022001
被引量:1
标识
DOI:10.1088/1674-4926/44/2/022001
摘要
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.
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