Please use this identifier to cite or link to this item: http://idr.nitk.ac.in/jspui/handle/123456789/11339
Title: Fluorometric detection of bisphenol A using ?-cyclodextrin-functionalized ZnO QDs
Authors: Kadam, V.V.
Raj Mohan, Balakrishnan
Ettiyappan, J.P.
Issue Date: 2020
Citation: Environmental Science and Pollution Research, 2020, Vol., , pp.-
Abstract: The estrogenic property of bisphenol A (BPA) leads to potential adverse health and ecological effects. A simple, selective, and cost-effective sensor capable of detecting BPA would have a noteworthy relevance for the environmental system. The present work illustrates the synthesis and characterization of ?-cyclodextrin (?-CD) functionalized zinc oxide (ZnO) quantum dots (QDs) for the selective detection of BPA. BPA has a fluorescence quenching effect on functionalized ZnO QDs, and the decrease in fluorescence intensity is associated with the BPA concentration between 2 and 10 ?M. Under the optimum reaction condition, a good linear correlation was obtained between relative fluorescence-quenching intensity of ?-cyclodextrin-functionalized ZnO QDs and BPA concentration (R2 = 0.9891). The lower detection limit of functionalized QDs for BPA was estimated to be 0.19 ?M, which is lower than the toxic limits in aquatic biota. The fluorescence-based detection of BPA may be ascribed to the electron transfer mechanism, which is elucidated with scientific details from the literature. 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
URI: https://idr.nitk.ac.in/jspui/handle/123456789/11339
Appears in Collections:1. Journal Articles

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