Portable paper-based multicolor sensor for sensitive on-site detection of organophosphorus pesticides using a high-efficiency Au+-induced gold nanobipyramids aspect ratio regulation strategy
文献类型： 外文期刊
作者： Zhang, Feng 1 ; Ren, Enxi 1 ; Wang, Zemiao 1 ; Fang, Ling 1 ; Yang, Weijuan 1 ; Zhang, Liaoyuan 1 ; Wang, Zongwen 1 ;
作者机构： 1.Fujian Agr & Forestry Univ, Coll Plant Protect, State Key Lab Ecol Pest Control Fujian & Taiwan Cr, Fuzhou 350002, Fujian, Peoples R China
2.Fujian Agr & Forestry Univ, Key Lab Biopesticide & Chem Biol, Minist Educ, Fuzhou 350002, Fujian, Peoples R China
3.Fujian Acad Agr Sci, Inst Qual Stand Testing Technol Agroprod, Fujian Key Lab Agroprod Qual & Safety, Fuzhou 350003, Peoples R China
关键词： Gold nanobipyramids; Acetylcholinesterase; Paper-based analytical device; Dichlorvos; Visual detection
期刊名称：MICROCHEMICAL JOURNAL （ 影响因子：5.1； 五年影响因子：4.7 ）
ISSN： 0026-265X
年卷期： 2024 年 207 卷
页码：
收录情况： SCI
摘要： On-site visual detection of organophosphorus pesticides (OPs) is crucial for safeguarding environmental and food safety. This study presents a robust, sensitive, and portable paper-based multicolor sensor (PMS) for the on-site detection of OPs. The PMS involves a novel Au+-induced gold nanobipyramids (AuNBPs) morphology transformation reaction within a paper-based analytical device (PAD) coupled with a bienzymatic hydrolysis system. The Au+-induced reaction sensitively regulates the aspect ratio of AuNBPs through Au+ disproportionation, which decreases the length of AuNBPs and simultaneously increases the width, accompanied by distinct multicolor changes. Upon performing in the PAD incorporating easily-prepared AuNBPs-deposited nylon membranes, a metal heater, and an oscillator, the Au+-induced reaction exhibits excellent reaction sensitivity, efficiency, reproducibility, AuNBPs stability, and color uniformity. In the bienzymatic hydrolysis system, acetylcholinesterase (AChE) and choline oxidase hydrolyze acetylcholine to product H2O2, which consumes tris(2-carboxyethyl)phosphine hydrochloride (TCEP), maintaining free Au+ for the disproportionation in the Au+-induced system, while the presence of OPs inhibits AChE activity, preserving TCEP to chelate Au+ and hindering the disproportionation. Under optimized conditions, the PMS exhibited eight dichlorvos concentration-corresponding color changes with a visual detection limit of 30 mu g/L and a spectrometry detection limit of 8.1 mu g/L. It achieved recoveries of 85.4-101.9 % in river water, drinking water, rice, and Chinese cabbage samples with relative standard deviations (n = 5) < 6 %. Thus, this study offers a portable, sensitive, reliable, and practical on-site detection method for OPs. Additionally, the proposed Au+-induced AuNBPs morphology transformation system within the PAD offers promising alternative strategies for developing other AuNBPs-based colorimetric sensors.
- 相关文献
作者其他论文 更多>>
-
Paper-based multicolor sensor for on-site quantitative detection of organophosphate pesticides based on acetylcholinesterase-mediated paper-based Au3+-etching of gold nanobipyramids and CIELab color space
作者：Zhang, Feng;Gao, Yu;Ren, Enxi;Fang, Ling;Yang, Weijuan;Zhang, Liaoyuan;Wang, Zongwen;Zhang, Feng;Gao, Yu;Ren, Enxi;Fang, Ling;Yang, Weijuan;Zhang, Liaoyuan;Wang, Zongwen;Fang, Ling
关键词：Paper-based analytical device; Colorimetric biosensor; Colorimeter; The CIELab color space; Gold nanobipyramids-deposited membrane
-
The Preparation, Properties, and Characterization of Octenyl Succinic Anhydride-Modified Turmeric Starches and Their Emulsification for Pickering Emulsions
作者：Fu, Lijuan;Chi, Hongfei;Wei, Hang;Huang, Biao;Qiang, Yueyue;Shi, Mengzhu;Fang, Ling;Fu, Jianwei;Fu, Lijuan;Chi, Hongfei;Qiang, Yueyue;Fu, Jianwei
关键词：turmeric starches; OSA-modified turmeric starches; degree of substitution; Pickering emulsions
-
Development of folding-based and signal-amplified fluorescence aptasensors using G-quadruplex quinclorac aptamer variants engineered via exonuclease digestion and circular dichroism spectroscopy
作者：Wang, Zemiao;Zhang, Feng;Fang, Ling;Chen, Fengping;Yang, Weijuan;Wang, Zongwen;Wang, Zemiao;Zhang, Feng;Fang, Ling;Chen, Fengping;Yang, Weijuan;Wang, Zongwen;Fang, Ling
关键词：Phosphorodiamidate morpholino oligomer; Recycling amplification; Exonuclease III; Exonuclease I; N -methyl mesoporphyrin IX
-
Regulating Gold Nanobipyramid Morphology via Au+-Disproportionation System on Paper Toward a Paper-Based Multicolor Sensor for Sensitive Visual Detection of Acetylcholinesterase Activity
作者：Zhang, Feng;Wang, Zemiao;Fang, Ling;Yang, Weijuan;Wang, Zongwen;Zhang, Feng;Wang, Zemiao;Fang, Ling;Yang, Weijuan;Wang, Zongwen;Fang, Ling;Fu, FengFu
关键词：gold nanocrystals; colorimetricsensor; paper-basedanalytical device; nanobipyramids; enzyme
-
Mining, Identification, and Characterization of Three Xylanases from the Microbiota of T. fuciformis with Its Companion Strains
作者：Lin, Yanhuan;Li, Changle;Wei, Chenxin;Zhang, Liaoyuan;Lin, Hui
关键词：xylanase; T. fuciformis; companion strain; metagenome; heterologous expression
-
Efficient 2,3-Butanediol Production from Ethanol by a Modified Four-Enzyme Synthetic Biosystem
作者：Zhang, Jiming;Lin, Yi;Lin, Hui;Zheng, Chaosong;Yang, Bin;Liang, Miao;Zhang, Liaoyuan
关键词：ethanol upgrading; semi-rational design; catalytic performance; substrate tolerance; cell-free multienzyme catalysis
-
Characterization, stability and antioxidant activity of curcumin nanocomplexes with soy protein isolate and pectin
作者：Fu, Lijuan;Tan, Suo;Si, Ruiru;Qiang, Yueyue;Wei, Hang;Huang, Biao;Shi, Mengzhu;Fang, Ling;Fu, Jianwei;Qiang, Yueyue;Fu, Jianwei;Zeng, Shaoxiao;Fu, Jianwei
关键词：Curcumin; Soy protein isolate; Pectin; Nanocomplexes; Antioxidant activity
