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Kim, Kwang S.
Center for Superfunctional Materials (CSM)
Research Interests
  • Theoretical/experimental nanosciences, molecular electronics spectroscopy, energy materials

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Turn-On Ratiometric Fluorescent Probe for Selective Discrimination of Cr3+ from Fe3+ in Aqueous Media for Living Cell Imaging

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Title
Turn-On Ratiometric Fluorescent Probe for Selective Discrimination of Cr3+ from Fe3+ in Aqueous Media for Living Cell Imaging
Author
Rasheed, LubnaYousuf, MuhammadYoun, Il SeungYoon, TaeseungKim, KwangYounSeo, Young KyoShi, GenggongwoSaleh, MuhammadHur, Jin-HoeKim, Kwang S.
Issue Date
2015-11
Publisher
WILEY-V C H VERLAG GMBH
Citation
CHEMISTRY-A EUROPEAN JOURNAL, v.21, no.46, pp.16349 - 16353
Abstract
Pyrene-based turn-on ratiometric fluorescent probe 1 demonstrates high sensitivity and exceptional selectivity toward Cr3+ in the presence of other metals, including Fe3+ in aqueous media. Interaction of Cr3+ with probe 1 brings pyrene moieties close enough to have better aligned - stacking, thus enhancing the excimer peak many fold. On the other hand, the interaction of Fe3+ with probe 1 brings forth a negligible difference in stacking, resulting in an insignificant change in fluorescence intensity. Exceptional selectivity of probe 1 with Cr3+ over Fe3+ and other metals has been confirmed by theoretical studies in addition to experimental results. Imaging of HeLa cells observed by confocal fluorescence microscopy reveals that probe 1 can be used to monitor Cr3+ in live cells to map its subcellular distribution.
URI
https://scholarworks.unist.ac.kr/handle/201301/17867
URL
http://onlinelibrary.wiley.com/doi/10.1002/chem.201501892/abstract
DOI
10.1002/chem.201501892
ISSN
0947-6539
Appears in Collections:
CHM_Journal Papers
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