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 Articles 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/. Title A name given to the resource Carbon dots derived from frankincense soot for ratiometric and colorimetric detection of lead (II) Subject The topic of the resource carbon dots; detection of lead; frankincense soot; photoluminescence; TD-DFT; UV light LED chip Description An account of the resource We report a simple one-pot hydrothermal synthesis of carbon dots from frankincense soot. Carbon dots prepared from frankincense (FI-CDs) have narrow size distribution with an average size of 1.80 nm. FI-CDs emit intense blue fluorescence without additional surface functionalization or modification. A negative surface charge was observed for FI-CDs, indicating the abundance of epoxy, carboxylic acid, and hydroxyl functionalities that accounts for their stability. A theoretical investigation of the FI-CDs attached to oxygen-rich functional groups is incorporated in this study. The characteristics of FI-CDs signify arm-chair orientation, which is confirmed by comparing the indirect bandgap of FI-CDs with the bandgap obtained from Tauc plots. Also, we demonstrate that the FI-CDs are promising fluoroprobes for the ratiometric detection of Pb2+ ions (detection limit of 0.12 ?M). The addition of Pb2+ to FI-CD solution quenched the fluorescence intensity, which is observable under illumination by UV light LED chips. We demonstrate a smartphone-assisted quantification of the fluorescence intensity change providing an efficient strategy for the colorimetric sensing of Pb2+ in real-life samples. 2022 IOP Publishing Ltd. Creator An entity primarily responsible for making the resource Lisa John V.; Fasila P.M.; Chaithra K.P.; Vinod T.P. Source A related resource from which the described resource is derived Nanotechnology, Vol-33, No. 49 Publisher An entity responsible for making the resource available Institute of Physics Date A point or period of time associated with an event in the lifecycle of the resource 2022-01-01 Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.1088/1361-6528/ac8e76" target="_blank" rel="noreferrer noopener">https://doi.org/10.1088/1361-6528/ac8e76</a> <br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-85138458505&amp;doi=10.1088%2F1361-6528%2Fac8e76&amp;partnerID=40&amp;md5=bd7f5294eb43822f617b9771d77f855f" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-85138458505&amp;doi=10.1088%2f1361-6528%2fac8e76&amp;partnerID=40&amp;md5=bd7f5294eb43822f617b9771d77f855f</a> Rights Information about rights held in and over the resource Restricted Access Relation A related resource ISSN: 9574484; PubMed ID: 36049475; CODEN: NNOTE Format The file format, physical medium, or dimensions of the resource Online Language A language of the resource English Type The nature or genre of the resource Article Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Lisa John V., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, India; Fasila P.M., Department of Chemistry, Sir Syed College, Taliparamba, Kerala, Kannur, 670142, India; Chaithra K.P., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, India; Vinod T.P., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, India