Yi He, Xiaoya Bi, Xiaohong Liu, Jin Zhu, Libo Li, Tianyan You* and Xuegeng Chen,
{"title":"基于笼状金纳米粒子和氨基功能化 rGO 的自组装的分子印迹电化学传感器用于检测棉花脱叶剂中的噻草隆","authors":"Yi He, Xiaoya Bi, Xiaohong Liu, Jin Zhu, Libo Li, Tianyan You* and Xuegeng Chen, ","doi":"10.1021/acsagscitech.3c00407","DOIUrl":null,"url":null,"abstract":"<p >Diuron (DU) is a kind of cotton defoliant with high toxicity and strong persistence that poses a serious environmental threat. DU has electroactive inertness and oxidation resistance, and there are only a few types of recognition elements, making its sensitive and specific detection critical. Herein, a novel molecularly imprinted polymer-based electrochemical (MIP-EC) sensor was developed by combing gold nanocages (AuNCs) with hollow-interior and porous walls with amino-functionalized reduced graphene oxide nanosheets (NH<sub>2</sub>-rGO) with a large surface area and excellent conductivity. Then, DU-MIP was directly grown on the modified electrode by electropolymerization, while it displayed a high imprinted factor (6.91) and high reusability (at least 5 times). Significantly, the NH<sub>2</sub>-rGO/AuNC nanocomposite could also enhance the recognition efficiency of DU-MIP, improving the analytical performances of the MIP-EC sensor, with the detection limit down to 4.3 ng/mL. In addition, this sensor exhibited high selectivity and rapid elution/recombination, and a simple construction process was utilized to detect DU in cotton and soil.</p>","PeriodicalId":93846,"journal":{"name":"ACS agricultural science & technology","volume":null,"pages":null},"PeriodicalIF":2.3000,"publicationDate":"2024-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Molecularly Imprinted Electrochemical Sensor Based on the Self-Assembly of Cage-like Gold Nanoparticles and Amino-Functionalized rGO for the Detection of Diuron in Cotton Defoliant\",\"authors\":\"Yi He, Xiaoya Bi, Xiaohong Liu, Jin Zhu, Libo Li, Tianyan You* and Xuegeng Chen, \",\"doi\":\"10.1021/acsagscitech.3c00407\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Diuron (DU) is a kind of cotton defoliant with high toxicity and strong persistence that poses a serious environmental threat. DU has electroactive inertness and oxidation resistance, and there are only a few types of recognition elements, making its sensitive and specific detection critical. Herein, a novel molecularly imprinted polymer-based electrochemical (MIP-EC) sensor was developed by combing gold nanocages (AuNCs) with hollow-interior and porous walls with amino-functionalized reduced graphene oxide nanosheets (NH<sub>2</sub>-rGO) with a large surface area and excellent conductivity. Then, DU-MIP was directly grown on the modified electrode by electropolymerization, while it displayed a high imprinted factor (6.91) and high reusability (at least 5 times). Significantly, the NH<sub>2</sub>-rGO/AuNC nanocomposite could also enhance the recognition efficiency of DU-MIP, improving the analytical performances of the MIP-EC sensor, with the detection limit down to 4.3 ng/mL. In addition, this sensor exhibited high selectivity and rapid elution/recombination, and a simple construction process was utilized to detect DU in cotton and soil.</p>\",\"PeriodicalId\":93846,\"journal\":{\"name\":\"ACS agricultural science & technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2024-01-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS agricultural science & technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acsagscitech.3c00407\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"AGRICULTURE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS agricultural science & technology","FirstCategoryId":"1085","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsagscitech.3c00407","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRICULTURE, MULTIDISCIPLINARY","Score":null,"Total":0}
Molecularly Imprinted Electrochemical Sensor Based on the Self-Assembly of Cage-like Gold Nanoparticles and Amino-Functionalized rGO for the Detection of Diuron in Cotton Defoliant
Diuron (DU) is a kind of cotton defoliant with high toxicity and strong persistence that poses a serious environmental threat. DU has electroactive inertness and oxidation resistance, and there are only a few types of recognition elements, making its sensitive and specific detection critical. Herein, a novel molecularly imprinted polymer-based electrochemical (MIP-EC) sensor was developed by combing gold nanocages (AuNCs) with hollow-interior and porous walls with amino-functionalized reduced graphene oxide nanosheets (NH2-rGO) with a large surface area and excellent conductivity. Then, DU-MIP was directly grown on the modified electrode by electropolymerization, while it displayed a high imprinted factor (6.91) and high reusability (at least 5 times). Significantly, the NH2-rGO/AuNC nanocomposite could also enhance the recognition efficiency of DU-MIP, improving the analytical performances of the MIP-EC sensor, with the detection limit down to 4.3 ng/mL. In addition, this sensor exhibited high selectivity and rapid elution/recombination, and a simple construction process was utilized to detect DU in cotton and soil.