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dc.contributor.authorRoy, Swapnadip
dc.contributor.authorMondal, Tapashree
dc.contributor.authorDey, Dhananjay
dc.contributor.authorMane, Manoj Vasisht
dc.contributor.authorPanja, Sujit S.
dc.date.accessioned2021-10-17T11:24:44Z
dc.date.available2021-10-17T11:24:44Z
dc.date.issued2021-10-12
dc.date.submitted2021-07-30
dc.identifier.citationRoy, S., Mondal, T., Dey, D., Mane, M. V., & Panja, S. S. (2021). A New Thiophene-Appended Fluorescein-Hydrazone-Based Chromo-Fluorogenic Sensor for the Screening of Hg 2+ Ions in Real Water Samples. ChemistrySelect, 6(38), 10464–10479. doi:10.1002/slct.202102692
dc.identifier.issn2365-6549
dc.identifier.issn2365-6549
dc.identifier.doi10.1002/slct.202102692
dc.identifier.urihttp://hdl.handle.net/10754/672871
dc.description.abstractA simple yet efficient, Hg2+ selective sensor, based on a fluroescein-thiophene conjugate, namely, (Z)-3′,6′-dihydroxy-2-(((3-methylthiophen-2-yl)methylene)amino)spiro[isoindoline-1,9′-xanthen]-3-one (FT) has been designed and synthesized. The compound was well characterized by analytical techniques such as HR-MS, FTIR, UV-visible absorption, steady-state fluorescence and time-resolved spectrophotometric techniques. Comprehensive analysis demonstrated FTas a highly specific and ultra-sensitive sensor towards Hg2+ ions in presence of several other interfering metal ions in ethanol/H2O (9 : 1, v/v) at pH=7.2 buffered with 10 mM HEPES buffer at room temperature. The complexation of the probe FT with Hg2+ was well confirmed by ESI-MS and FTIR spectral analysis. The detection limit of the probe FT towards Hg2+ was achieved down to 137 nM. The structure of ligand FT and FT-Hg2+ complex were well corroborated by theoretical studies as well. In addition, the FT-Hg2+ complex was found to be reversible in presence of di-sodium EDTA and hence decipher its recyclability capabilities. The significance of the present probe FT lies in its successful application for the detection and quantification of Hg2+ in real water samples and logic gate fabrication for future incorporation in small organic molecule based efficient molecular devices.
dc.description.sponsorshipThe authors thankfully acknowledge DST-FIST (SR/FST/CSI- 267/2015 (C)) and NIT Durgapur for creating and providing infrastructural facilities for research. The authors are thankful to IICB Kolkata for the HR-mass spectra analysis. SSP also acknowledge the financial support from DST SERB (EMR/2016/001230 dt.15. 03. 2017).
dc.publisherWiley
dc.relation.urlhttps://onlinelibrary.wiley.com/doi/10.1002/slct.202102692
dc.rightsArchived with thanks to ChemistrySelect
dc.titleA New Thiophene-Appended Fluorescein-Hydrazone-Based Chromo-Fluorogenic Sensor for the Screening of Hg 2+ Ions in Real Water Samples
dc.typeArticle
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.identifier.journalChemistrySelect
dc.rights.embargodate2022-10-12
dc.eprint.versionPost-print
dc.contributor.institutionDepartment of Chemistry National Institute of Technology Durgapur Durgapur West Bengal 713209 India
dc.contributor.institutionDepartment of Chemical Sciences IISER Mohali Mohali 140306 India
dc.identifier.volume6
dc.identifier.issue38
dc.identifier.pages10464-10479
kaust.personMane, Manoj Vasisht
dc.date.accepted2021-10-01
refterms.dateFOA2021-10-21T12:45:25Z
dc.date.published-online2021-10-12
dc.date.published-print2021-10-13


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