{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T04:24:51Z","timestamp":1777350291373,"version":"3.51.4"},"reference-count":55,"publisher":"MDPI AG","issue":"15","license":[{"start":{"date-parts":[[2023,8,7]],"date-time":"2023-08-07T00:00:00Z","timestamp":1691366400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"FCT","award":["UID\/QUI\/00686\/2020"],"award-info":[{"award-number":["UID\/QUI\/00686\/2020"]}]},{"name":"FCT","award":["2022.12455.BD"],"award-info":[{"award-number":["2022.12455.BD"]}]},{"name":"FCT","award":["2020.05278.BD"],"award-info":[{"award-number":["2020.05278.BD"]}]},{"name":"FCT","award":["REDE\/1517\/RMN\/2005"],"award-info":[{"award-number":["REDE\/1517\/RMN\/2005"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Optical chemosensors are a practical tool for the detection and quantification of important analytes in biological and environmental fields, such as Cu2+ and Fe3+. To the best of our knowledge, a BODIPY derivative capable of detecting Cu2+ and Fe3+ simultaneously through a colorimetric response has not yet been described in the literature. In this work, a meso-triphenylamine-BODIPY derivative is reported for the highly selective detection of Cu2+ and Fe3+. In the preliminary chemosensing study, this compound showed a significant color change from yellow to blue\u2013green in the presence of Cu2+ and Fe3+. With only one equivalent of cation, a change in the absorption band of the compound and the appearance of a new band around 700 nm were observed. Furthermore, only 10 equivalents of Cu2+\/Fe3+ were needed to reach the absorption plateau in the UV-visible titrations. Compound 1 showed excellent sensitivity toward Cu2+ and Fe3+ detection, with LODs of 0.63 \u00b5M and 1.06 \u00b5M, respectively. The binding constant calculation indicated a strong complexation between compound 1 and Cu2+\/Fe3+ ions. The 1H and 19F NMR titrations showed that an increasing concentration of cations induced a broadening and shifting of the aromatic region peaks, as well as the disappearance of the original fluorine peaks of the BODIPY core, which suggests that the ligand\u2013metal (1:2) interaction may occur through the triphenylamino group and the BODIPY core.<\/jats:p>","DOI":"10.3390\/s23156995","type":"journal-article","created":{"date-parts":[[2023,8,7]],"date-time":"2023-08-07T06:38:48Z","timestamp":1691390328000},"page":"6995","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Colorimetric Chemosensor for Cu2+ and Fe3+ Based on a meso-Triphenylamine-BODIPY Derivative"],"prefix":"10.3390","volume":"23","author":[{"given":"S\u00f3nia C. S.","family":"Pinto","sequence":"first","affiliation":[{"name":"Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal"}]},{"given":"Raquel C. R.","family":"Gon\u00e7alves","sequence":"additional","affiliation":[{"name":"Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7915-4720","authenticated-orcid":false,"given":"Susana P. G.","family":"Costa","sequence":"additional","affiliation":[{"name":"Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7996-1626","authenticated-orcid":false,"given":"M. Manuela M.","family":"Raposo","sequence":"additional","affiliation":[{"name":"Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2023,8,7]]},"reference":[{"key":"ref_1","first-page":"94","article-title":"Effect of Toxic Metals on Human Health","volume":"3","author":"Mudgal","year":"2010","journal-title":"Open Nutraceuticals J."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"124364","DOI":"10.1016\/j.chemosphere.2019.124364","article-title":"Global Evaluation of Heavy Metal Content in Surface Water Bodies: A Meta-Analysis Using Heavy Metal Pollution Indices and Multivariate Statistical Analyses","volume":"236","author":"Kumar","year":"2019","journal-title":"Chemosphere"},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Luch, A. (2012). Molecular, Clinical and Environmental Toxicology, Springer. 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