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dc.contributor.authorFang, Hsiao-Pingen_US
dc.contributor.authorShellaiah, Muthaiahen_US
dc.contributor.authorSingh, Ashutoshen_US
dc.contributor.authorRaju, Mandapati V. Ramakrishnamen_US
dc.contributor.authorWu, Yen-Hsingen_US
dc.contributor.authorLin, Hong-Cheuen_US
dc.date.accessioned2014-12-08T15:34:55Z-
dc.date.available2014-12-08T15:34:55Z-
dc.date.issued2014-04-01en_US
dc.identifier.issn0925-4005en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.snb.2013.12.082en_US
dc.identifier.urihttp://hdl.handle.net/11536/23750-
dc.description.abstractSelective naked eye and fluorescent sensor responses of a 1,6,7,12-tetra(4-tert-butylphenoxy)perylene-3,4:9,10-tetracarboxylic acid bisimide (PBI) derivative are reported for the first time toward Hg2+ ions and Cysteine (Cys) via J-aggregation and deaggregation mechanisms. The J-aggregation and deaggregation of PBI induced by Hg2+ and Cys were well established by UV-vis/PL and H-1 NMR titrations. The 1:1 stoichiometry of PBI-Hg2+ and Cys-Hg2+/PBI ensembles were elucidated from the jobs plots based on their UV-vis spectral changes. The linear complex formation by PBI-Hg2+ ensemble was confirmed through FT-IR and H-1 NMR spectral studies and well supported by its reversible nature upon the addition of pentamethyl diethylene triamine (PMDTA). The positive cooperativities of Hg2+ and Cys (with PBI) in PBI-Hg2+ and Cys-Hg2+/PBI ensembles were evidenced from the Hill plots based on their fluorescence binding isotherms. The detection limits of Hg2+ ions and Cys were calculated as 36.6 and 91.3 nM, respectively, by standard deviations and linear fittings of their Stern-Volmer (KSV) constants and relative fluorescence intensity changes, respectively. Furthermore, the sensor properties of PBI were well investigated by KSV constants, pH values, time effects, and time resolved photoluminescence (TRPL) spectra. (C) 2013 Elsevier B.V. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectPerylene bisimideen_US
dc.subjectHg2+ mediated Cys sensoren_US
dc.subjectJ-Aggregation and deaggregationen_US
dc.subjectReversible sensoren_US
dc.subjectTRPL spectraen_US
dc.titleNaked eye and fluorescent detections of Hg2+ ions and Cysteine via J-aggregation and deaggregation of a perylene bisimide derivativeen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.snb.2013.12.082en_US
dc.identifier.journalSENSORS AND ACTUATORS B-CHEMICALen_US
dc.citation.volume194en_US
dc.citation.issueen_US
dc.citation.spage229en_US
dc.citation.epage237en_US
dc.contributor.department材料科學與工程學系zh_TW
dc.contributor.departmentDepartment of Materials Science and Engineeringen_US
dc.identifier.wosnumberWOS:000331575400031-
dc.citation.woscount2-
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