{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,28]],"date-time":"2026-03-28T02:06:44Z","timestamp":1774663604316,"version":"3.50.1"},"reference-count":33,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2024,5,26]],"date-time":"2024-05-26T00:00:00Z","timestamp":1716681600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Hainan Province Science and Technology Special Fund","award":["ZDYF2022SHFZ076"],"award-info":[{"award-number":["ZDYF2022SHFZ076"]}]},{"name":"Hainan Province Science and Technology Special Fund","award":["ZDYF2022SHFZ307"],"award-info":[{"award-number":["ZDYF2022SHFZ307"]}]},{"name":"Hainan Province Science and Technology Special Fund","award":["820RC626"],"award-info":[{"award-number":["820RC626"]}]},{"name":"Hainan Province Science and Technology Special Fund","award":["821RC559"],"award-info":[{"award-number":["821RC559"]}]},{"name":"Hainan Province Science and Technology Special Fund","award":["Hnky2023-26"],"award-info":[{"award-number":["Hnky2023-26"]}]},{"name":"Natural Science Foundation of Hainan Province","award":["ZDYF2022SHFZ076"],"award-info":[{"award-number":["ZDYF2022SHFZ076"]}]},{"name":"Natural Science Foundation of Hainan Province","award":["ZDYF2022SHFZ307"],"award-info":[{"award-number":["ZDYF2022SHFZ307"]}]},{"name":"Natural Science Foundation of Hainan Province","award":["820RC626"],"award-info":[{"award-number":["820RC626"]}]},{"name":"Natural Science Foundation of Hainan Province","award":["821RC559"],"award-info":[{"award-number":["821RC559"]}]},{"name":"Natural Science Foundation of Hainan Province","award":["Hnky2023-26"],"award-info":[{"award-number":["Hnky2023-26"]}]},{"name":"Colleges and Universities Scientific Research Projects of the Education Department of Hainan Province","award":["ZDYF2022SHFZ076"],"award-info":[{"award-number":["ZDYF2022SHFZ076"]}]},{"name":"Colleges and Universities Scientific Research Projects of the Education Department of Hainan Province","award":["ZDYF2022SHFZ307"],"award-info":[{"award-number":["ZDYF2022SHFZ307"]}]},{"name":"Colleges and Universities Scientific Research Projects of the Education Department of Hainan Province","award":["820RC626"],"award-info":[{"award-number":["820RC626"]}]},{"name":"Colleges and Universities Scientific Research Projects of the Education Department of Hainan Province","award":["821RC559"],"award-info":[{"award-number":["821RC559"]}]},{"name":"Colleges and Universities Scientific Research Projects of the Education Department of Hainan Province","award":["Hnky2023-26"],"award-info":[{"award-number":["Hnky2023-26"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A chitosan-based Cu2+ fluorescent probe was designed and synthesized independently using the C-2-amino group of chitosan with 1, 8-naphthalimide derivatives. A series of experiments were conducted to characterize the optical properties of the grafted probe. The fluorescence quenching effect was investigated based on the interactions between the probe and common metals. It was found that the proposed probe displayed selective interaction with Cu2+ over other metal ions and anions, reaching equilibrium within 5 min.<\/jats:p>","DOI":"10.3390\/s24113425","type":"journal-article","created":{"date-parts":[[2024,5,27]],"date-time":"2024-05-27T09:33:31Z","timestamp":1716802411000},"page":"3425","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Construction of Chitosan-Modified Naphthalimide Fluorescence Probe for Selective Detection of Cu2+"],"prefix":"10.3390","volume":"24","author":[{"given":"Chunwei","family":"Yu","sequence":"first","affiliation":[{"name":"NHC Key Laboratory of Tropical Disease Control, School of Tropical Medicine, Hainan Medical University, Haikou 571199, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jin","family":"Huang","sequence":"additional","affiliation":[{"name":"NHC Key Laboratory of Tropical Disease Control, School of Tropical Medicine, Hainan Medical University, Haikou 571199, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mei","family":"Yang","sequence":"additional","affiliation":[{"name":"NHC Key Laboratory of Tropical Disease Control, School of Tropical Medicine, Hainan Medical University, Haikou 571199, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jun","family":"Zhang","sequence":"additional","affiliation":[{"name":"NHC Key Laboratory of Tropical Disease Control, School of Tropical Medicine, Hainan Medical University, Haikou 571199, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,5,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"14904","DOI":"10.1039\/C9TC04592A","article-title":"Ultrafast, sensitive and visual sensing of copper ions by a dual-fluorescent film based on quantum dots","volume":"7","author":"Han","year":"2019","journal-title":"J. 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