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Pure Appl. Chem., 2011, Vol. 83, No. 4, pp. 823-840

Published online 2011-02-28

Design of cyclometalated iridium(III) polypyridine complexes as luminescent biological labels and probes

Kenneth Kam-Wing Lo, Kenneth Yin Zhang and Steve Po-Yam Li

Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China

Abstract: The interesting emission properties of cyclometalated iridium(III) polypyridine complexes, originated from a range of excited states, have been well documented. The intense and long-lived emission of these complexes has been exploited in various areas of research including photovoltaic cells, chemosensors, and light-emitting devices. Additionally, there is an emerging interest in the applications of these luminescent complexes in various biological studies. In this paper, we summarize our recent work on the utilization of luminescent cyclometalated iridium(III) polypyridine complexes as biomolecular and cellular probes.