文献类型：期刊文献

英文题名：Smart plant-wearable biosensor for in-situ pesticide analysis

作者：Zhao, Fengnian[1];He, Jianwei[2];Li, Xunjia[1];Bai, Yunpeng[2];Ying, Yibin[1,3];Ping, Jianfeng[1]

机构：[1]Zhejiang Univ, Sch Biosyst Engn & Food Sci, Lab Agr Informat Intelligent Sensing, 866 Yuhangtang Rd, Hangzhou 310058, Peoples R China;[2]East China Univ Sci & Technol, State Key Lab Bioreactor Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]Zhejiang A&F Univ, Hangzhou 311300, Peoples R China

年份：2020

卷号：170

外文期刊名：BIOSENSORS & BIOELECTRONICS

收录：;EI(收录号：20204109312745);WOS:【SCI-EXPANDED(收录号:WOS:000597180000003)】；

基金：The authors acknowledge the financial support of the National Science Fund for Excellent Young Scholars of China (Grant No. 31922063) and Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Wearable biosensor; Graphene; In-situ analysis; Pesticide residue; Precision agriculture

摘要：Inspired by the wearable sensors and to meet the demand for rapid and nondestructive detection, we developed a smart plant-wearable biosensor, which can be applied for in-situ analysis of organophosphorus pesticide on crop surfaces. Herein, the serpentine three-electrode system was prepared via the laser-induced graphene (LIG) technology. After transferred by polydimethylsiloxane (PDMS), the stretchable and flexible LIG-based electrode was obtained, which can be well adapt to the irregular surface of crops, such as leaves and fruits. After modified with organophosphorus hydrolase (OPH) and equipped with biocompatible semisolid electrolyte, our plant wearable biosensor can selectively capture and recognize the methyl parathion and the data can be transmitted to a smartphone device wirelessly, which enable the real-time and in-situ electrochemical analysis of pesticide on the surface of agricultural products. To further enhance the electrochemical performance, gold nanoparticles (AuNPs) were modified on the surface of three-dimensional (3D) porous LIG. Such smart plant wearable biosensor could be a transformative approach for the in-situ analysis of pesticide residue on crops, which could also promote the development of precision agriculture in the future.