摘要
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.
基金
funded by the National Key R&D Program of China(No.2021YFE0201400)
the National Natural Science Foundation of China(Nos.51773041,61890940,22066011)
the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB30000000)
the Department of Education of Jiangxi Province(No.GJJ211105)
Jiangxi Science&Technology Normal University(No.2021QNBJRC002)
State Key Laboratory of Molecular Engineering of Polymers.
