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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

作者： Jiao, Zhe 1 ; Guo, Zongning 3 ; Huang, Xuelin 3 ; Yang, Jialing 1 ; Huang, Jianxiang 4 ; Liu, Yong 5 ; Liu, Guozhen 6 ; Z 1 ;

作者机构： 1.Dongguan Univ Technol, Sch Environm & Civil Engn, Dongguan 523808, Peoples R China

2.Chinese Univ Hong Kong, Sch Sci & Engn, Shenzhen Inst Aggregate Sci & Technol, Shenzhen 518172, Guangdong, Peoples R China

3.Huangpu Customs Dist Technol Ctr, Dongguan 523000, Peoples R China

4.Guangdong Acad Agr Sci, Inst Qual Stand & Monitoring Technol Agroprod, Guangzhou 510640, Peoples R China

5.AIE Inst, Guangzhou 510530, Peoples R China

6.Univ New South Wales, Fac Engn, ARC Ctr Excellence Nanoscale Biophoton, Grad Sch Biomed Engn, Sydney, NSW 2052, Australia

7.Chinese Acad Sci, Inst Biomed & Biotechnol, Shenzhen Inst Adv Technol,CAS Key Lab Hlth Inform, Guangdong Key Lab Nanomed,Shenzhen Engn Lab Nanom, Shenzhen 518055, Peoples R China

8.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Wuxi 214081, Jiangsu, Peoples R China

9.Minist Agr & Rural Affairs, Key Lab Control Qual & Safety Aquat Prod, Beijing 100125, Peoples R China

10.Hong Kong Univ Sci & Technol, Hong Kong Branch, Kowloon,Dept Chem, Dept Chem & Biol Engn,Chinese Natl Engn Res Ctr T, Clear Water Bay, Hong Kong, Peoples R China

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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