Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Faculty Publications Article Faculty Publications -Articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Keerthana, P.; Cherian, Anila Rose Title A name given to the resource Pharmaceutical Waste-Derived Carbon Quantum Dots via Microwave Method for Selective Au3+ Ion Detection Date A point or period of time associated with an event in the lifecycle of the resource 01-01-2025 Source A related resource from which the described resource is derived ChemistrySelect;Volume;10;Issue;30;Article No.;e02725; Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.1002/slct.202502725" target="_blank" rel="noreferrer noopener">https://doi.org/10.1002/slct.202502725</a> <br /><br /><a href="https://www.scopus.com/pages/publications/105012834859?origin=resultslist" target="_blank" rel="noreferrer noopener">https://www.scopus.com/pages/publications/105012834859?origin=resultslist</a> Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Keerthana P., Department of Chemistry, The Oxford College of Science (Affiliated to Bangalore University), Karnataka, Bengaluru, 560102, India, Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560029, India; Cherian A.R., Department of Chemistry, The Oxford College of Science (Affiliated to Bangalore University), Karnataka, Bengaluru, 560102, India, Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560029, India Description An account of the resource Heavy metals released in various ways into water bodies is a key concern for environmental protection. Their nonbiodegradability and the health risks associated with these heavy metals in the environment exacerbate the problem. Scientists worldwide are addressing the issue through various approaches. Among them, the fluorescence approach is unique in its simplicity and rapid results. In this study, carbon quantum dots (CQDs) were synthesized from an expired vitamin B12 tablet using a simple microwave-assisted approach. The resulting CQDs showed sustainability, good photostability with quantum yield (30.08%), water solubility, prolonged storage stability, and produced a brilliant blue emission when exposed to UV light. These CQDs exhibited stable photoluminescence attributes across a wide range of ionic strengths and pH levels. Au3+ ions effectively quenched the PL intensity of CQDs in a linear, selective, and sensitive approach. We demonstrated Au3+ sensing in aqueous conditions utilizing CQDs as the fluorescent probe, with a limit of detection of 41nM. This work has been demonstrated to create an efficient and cost-effective method for detecting auric ions in wastewater effluents. 2025 Wiley-VCH GmbH. Subject The topic of the resource Au³⁺ ion; Carbon quantum dots; Microwave-Assisted method; Real sample analysis; Sustainability; Vitamin B12 Publisher An entity responsible for making the resource available John Wiley and Sons Inc Relation A related resource ISSN: 23656549; Language A language of the resource English Type The nature or genre of the resource Article Rights Information about rights held in and over the resource Restricted Access; Hardcopy may be available in the library Format The file format, physical medium, or dimensions of the resource online