3D-Printed, Portable, Fluorescent-Sensing Platform for Smartphone-Capable Detection of Organophosphorus Residue Using Reaction-Based Aggregation Induced Emission Luminogens

文献类型： 外文期刊

第一作者： Jiao, Zhe

作者： Jiao, Zhe;Yang, Jialing;Jiao, Zhe;Tang, Ben Zhong;Guo, Zongning;Huang, Xuelin;Huang, Jianxiang;Liu, Yong;Liu, Guozhen;Zhang, Pengfei;Song, Chao;Song, Chao;Tang, Ben Zhong

作者机构：

关键词： AIEgens; S-containing organophosphorus; click addition; smartphone; fluorescent-sensing; portable

期刊名称：ACS SENSORS （ 影响因子：7.711； 五年影响因子：8.162 ）

ISSN： 2379-3694

年卷期： 2021 年 6 卷 8 期

页码：

收录情况： SCI

摘要： Development of an easy-to-use, low-cost, household device can help the consumer quickly identify an organophosphorus (OP) residue concentration level. In this work, we demonstrate a 3D-printed, portable, fluorescent-sensing platform for smartphone-capable detection of OPs in vegetables. For development of the proposed device, we utilize the smartphone for capturing the strong thiol-activated fluorescence, which was produced by hydrolysis of OPs in the presence of alkali. The thiol-responsive AIEgen (maleimide-functionalized tetraphenyl-ethylene) was non-emissive in both solution and the solid state but could be readily lighted up by the click addition of thiol to its MI pendant. An android application "Detection" has been developed on the basis of the gray value to analyze the different concentration levels of OPs in vegetable samples. The gray value was linearly related with the concentration of five kinds of organophosphorus residue, ranging from 0 to 20 mu g/mL. It was also applied for determination of OPs residue in the leaves of cowpea, celery, and Chinese cabbage. Different from acetylcholinesterase enzyme-based sensors for poor stability under high temperature, the proposed method was a direct detection method for OPs and can be used for rapid monitoring of OPs residue concentration levels before LC-MS analysis.

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