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Phenothiazine-Based Cu(II)-Selective Fluorescent Sensor: GHK-Cu Sensing Applications

Study · The Journal of organic chemistry · 2023 · DOI 10.1021/acs.joc.3c01600 · PMID 37830186

Plain-language summary

Paraphrased from the published abstract below — not a verdict on whether anything works.

This chemistry study (species not specified) describes development of a phenothiazine-based Cu(II)-selective fluorescent sensor for metal-sensing applications, including detecting the GHK-Cu complex. The sensor was reported to be highly selective for Cu(II) ions compared with other transition metal salts, with Lewis acidity of the Cu(II) salt described as a factor in the sensing response when methanol (MeOH) was used as solvent. A 1:1 ratio was found to be optimal for achieving the desired sensing response.

Abstract

Sensing important metals in different environments is an important area and involves the development of a wide variety of metal-sensing materials. The employment of fluorescent sensors in metal sensing has been one of the most widely applied methodologies, and the identification of selective metal sensors is important. We herein report a phenothiazine-based Cu(II) fluorescent sensor that is highly selective to Cu(II) ions compared with other transition metal salts. The Lewis acidity of the Cu(II) salt certainly was found to be a factor for obtaining an enhanced sensing response in MeOH as the solvent, while a ratio of 1:1 was calculated to be the most optimum for getting the desired response.

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