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dc.contributor.authorShellaiah, Muthaiahen_US
dc.contributor.authorSimon, Turibiusen_US
dc.contributor.authorSrinivasadesikan, Venkatesanen_US
dc.contributor.authorLin, Chein-Mingen_US
dc.contributor.authorSun, Kien Wenen_US
dc.contributor.authorKo, Fu-Hsiangen_US
dc.contributor.authorLin, Ming-Changen_US
dc.contributor.authorLin, Hong-Cheuen_US
dc.date.accessioned2017-04-21T06:56:28Z-
dc.date.available2017-04-21T06:56:28Z-
dc.date.issued2016en_US
dc.identifier.issn2050-7526en_US
dc.identifier.urihttp://dx.doi.org/10.1039/c5tc03738gen_US
dc.identifier.urihttp://hdl.handle.net/11536/133578-
dc.description.abstractTwo novel pyrene containing monomeric and dimeric Schiff base derivatives PCS1 and PCS2 have been synthesized via one-pot reaction and their nano-J-type aggregation induced emission enhancement (AIEE) was well demonstrated using UV-Vis/PL, transmission electron microscopy (TEM), dynamic light scattering (DLS), time resolved photoluminescence (TRPL), and live cell imaging studies. In contrast to PCS2, PCS1 in CH3CN exhibits fluorescence "off-on" sensor selectivity towards transition trivalent metal ions (Fe3+, Cr3+ and Al3+) among other metals, via PET inhibition with excimer PCS1-PCS1(star) formation. The 2 : 1 stoichiometry of PCS1 center dot center dot center dot M3+ (M = Fe/Cr/Al) sensor complexes was calculated from Job\'s plots based on their PL titrations. In addition, the binding sites of PCS1 center dot center dot center dot M3+ sensor complexes were well recognised from the H-1 NMR titrations and supported by ESI(+ve) mass and FTIR analysis. Additionally, fluorescence reversibilities of PCS1 center dot center dot center dot M3+ were observed via consequent addition of M3+ ions and PMDTA, respectively. Furthermore, the detection limits (LODs) and the association constant (K-a) values of PCS1 center dot center dot center dot M3+ complexes were calculated using standard deviation and linear fittings. Likewise, quantum yield (Phi) measurements, TEM analysis, determination of the effect of pH, density functional theory (DFT) and time resolved photoluminescence (TRPL) studies were performed for the PCS1 center dot center dot center dot M3+ sensor complexes. More importantly, confocal fluorescence microscopy imaging of Raw264.7 cells showed that PCS1 could be used as an effective fluorescent probe for detecting transition trivalent metal ions (Fe3+, Cr3+, and Al3+) in living cells. Impressively, both PCS1 and PCS2 showed "off-on" sensing at highly acidic pH values (1-3) with live cell applications.en_US
dc.language.isoen_USen_US
dc.titleNovel pyrene containing monomeric and dimeric supramolecular AIEE active nano-probes utilized in selective "off-on" trivalent metal and highly acidic pH sensing with live cell applicationsen_US
dc.identifier.doi10.1039/c5tc03738gen_US
dc.identifier.journalJOURNAL OF MATERIALS CHEMISTRY Cen_US
dc.citation.volume4en_US
dc.citation.issue10en_US
dc.citation.spage2056en_US
dc.citation.epage2071en_US
dc.contributor.department材料科學與工程學系zh_TW
dc.contributor.department應用化學系zh_TW
dc.contributor.department應用化學系分子科學碩博班zh_TW
dc.contributor.department電子工程學系及電子研究所zh_TW
dc.contributor.departmentDepartment of Materials Science and Engineeringen_US
dc.contributor.departmentDepartment of Applied Chemistryen_US
dc.contributor.departmentInstitute of Molecular scienceen_US
dc.contributor.departmentDepartment of Electronics Engineering and Institute of Electronicsen_US
dc.identifier.wosnumberWOS:000371671400017en_US
Appears in Collections:Articles