{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,17]],"date-time":"2026-05-17T11:26:16Z","timestamp":1779017176563,"version":"3.51.4"},"reference-count":35,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2018,5,17]],"date-time":"2018-05-17T00:00:00Z","timestamp":1526515200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["No. 31701695"],"award-info":[{"award-number":["No. 31701695"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"the project of risk assessment on vegetable products","award":["GJFP2018002"],"award-info":[{"award-number":["GJFP2018002"]}]},{"name":"the Basic Funds for Research and Development of Chinese Academy of Agriculture Sciences","award":["Y2018PT25"],"award-info":[{"award-number":["Y2018PT25"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Various highly sensitive and selective analytical methods have been used to monitor metsulfuron-methyl residue in the environment. However, these methods involve costly instruments and complex, time-consuming operations performed in laboratories. Here, a rapid, convenient, and sensitive colorimetric sensor based on anti-aggregation of gold nanoparticles (AuNPs) is demonstrated for the rapid detection of metsulfuron-methyl in agricultural irrigation water. The AuNPs could be induced to aggregate in the presence of melamine and exhibited a distinct color change from wine-red to blue. The aggregation was suppressed by a strong hydrogen-bonding interaction between metsulfuron-methyl and melamine. The differences of the absorbance at 523 nm (\u0394A523) and the color change was linearly related to metsulfuron-methyl concentration over the range 0.1\u2013100 mg\/L, as observed visually and by UV-vis (Ultraviolet-visible) spectrometry. The detection limit of the sensor was as low as 0.05 mg\/L (signal\/noise = 3), and was used to determine metsulfuron-methyl in spiked water and in agricultural irrigation water samples. Recoveries were in the range of 71.2\u2013100.4%, suggesting that the colorimetric sensor was suitable for the determination of metsulfuron-methyl in agricultural water samples.<\/jats:p>","DOI":"10.3390\/s18051595","type":"journal-article","created":{"date-parts":[[2018,5,17]],"date-time":"2018-05-17T03:49:29Z","timestamp":1526528969000},"page":"1595","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Visual and Colorimetric Sensing of Metsulfuron-Methyl by Exploiting Hydrogen Bond-Induced Anti-Aggregation of Gold Nanoparticles in the Presence of Melamine"],"prefix":"10.3390","volume":"18","author":[{"given":"Guangyang","family":"Liu","sequence":"first","affiliation":[{"name":"Quality and Safety Risk Assessment Laboratory for Sugar Crops Products, the Ministry of Agriculture, Heilongjiang University, Harbin 150080, China"},{"name":"Key Laboratory of Vegetables Quality and Safety Control, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture of China, Beijing 100081, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ruonan","family":"Zhang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Vegetables Quality and Safety Control, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture of China, Beijing 100081, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaodong","family":"Huang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Vegetables Quality and Safety Control, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture of China, Beijing 100081, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lingyun","family":"Li","sequence":"additional","affiliation":[{"name":"Key Laboratory of Vegetables Quality and Safety Control, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture of China, Beijing 100081, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Naixin","family":"Liu","sequence":"additional","affiliation":[{"name":"Quality and Safety Risk Assessment Laboratory for Sugar Crops Products, the Ministry of Agriculture, Heilongjiang University, Harbin 150080, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jing","family":"Wang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Agrifood Safety and Quality, Institute of Quality Standard and Testing Technology for Agro Products, Chinese Academy of Agricultural Sciences, Ministry of Agriculture of China, Beijing 100081, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Donghui","family":"Xu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Vegetables Quality and Safety Control, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture of China, Beijing 100081, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2018,5,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"56","DOI":"10.1016\/j.chroma.2016.10.023","article-title":"Simple, cost-effective and sensitive liquid chromatography diode array detector method for simultaneous determination of eight sulfonylurea herbicides in soya milk samples","volume":"1473","author":"Rejczak","year":"2016","journal-title":"J. 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