Flexible sensor based on molecular imprinting for simultaneous in situ detection of indole-3-acetic acid and salicylic acid in plants
文献类型： 外文期刊
作者： Liu, Ke 1 ; Hou, Peichen 2 ; Pan, Dayu 2 ; Zhou, Yanan 2 ; Luo, Bin 2 ; Chen, Liping 1 ; Zhao, Chunjiang 1 ; Li, Aixue 2 ;
作者机构： 1.Shenyang Agr Univ, Coll Informat & Elect Engn, Shenyang 110866, Peoples R China
2.Beijing Acad Agr & Forestry Sci, Res Ctr Intelligent Equipment, Beijing 100097, Peoples R China
关键词： Molecularly imprinted polymer; In situ; MXene; Laser-induced graphene; Flexible sensor; Electrochemical biosensor
期刊名称：TALANTA （ 影响因子：6.1； 五年影响因子：5.5 ）
ISSN： 0039-9140
年卷期： 2025 年 294 卷
页码：
收录情况： SCI
摘要： In plants, indole-3-acetic acid (IAA) and salicylic acid (SA) are critical for defense responses, making their simultaneous detection essential for understanding regulation mechanisms. This study developed a flexible laserinduced graphene (LIG) sensor enhanced with MXene nanosheets for improved conductivity and catalytic activity. A molecularly imprinted polymer (MIP) film, using chitosan (CS) as the monomer and IAA/SA as templates, was fabricated on the electrode surface. The MIP/MXene/LIG/PDMS sensor, with excellent flexibility for curved leaf surfaces, detected IAA and SA simultaneously in ranges of 5-100 mu M and 5-1000 mu M, with detection limits of 0.921 mu M and 1.677 mu M. Applied in situ to strawberry leaves under salt stress, this sensor offers promising applications in precision agriculture.
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