Journal
ORIENTAL JOURNAL OF CHEMISTRY
Volume 34, Issue 1, Pages 1-23Publisher
ORIENTAL SCIENTIFIC PUBL CO
DOI: 10.13005/ojc/340101
Keywords
Amino acids; Cell imaging; Heavy metal complexes; Phosphorescence; Selectivity
Funding
- Council of Scientific and Industrial Research (CSIR), India
- Academia Sinica, Ministry of Science and Technology, Taiwan
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The use of phosphorogenic heavy-metal complexes has emerged as an attractive platform for luminescence sensing and cellular imaging studies as a result of several merits including precisely arranging the coordination structures and charge-transfer characteristics. This review intends to provide the design principles and the applications of amino acids sensing based on heavy-metal complexes such as Re(I)-, Ru(II)-, 14110-, and Pt(II). These metal complexes function as phosphorogenic sensors with superior activities and selectivities towards amino acids by utilizing several mechanisms, including luminescent responses of switch-on. Furthermore, the practical utility of long lifetime and cell permeability of these metal complexes allows to detect luminescence imaging of amino acids in living cells without interference from endogenous fluorophores.
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