Document Type

Article

Publication Date

11-18-2013

Publication Title

Chemistry - A European Journal

Abstract

Fundamental study of enzymatic nucleoside transport suffers for lack of optical probes that can be tracked noninvasively. Nucleoside transporters are integral membrane glycoproteins that mediate the salvage of nucleosides and their passage across cell membranes. The substrate recognition site is the deoxyribose sugar, often with little distinction among nucleobases. Reported here are nucleoside analogues in which emissive, cyclometalated iridium(III) complexes are “clicked” to C-1 of deoxyribose in place of canonical nucleobases. The resulting complexes show visible luminescence at room temperature and 77 K with microsecond-length triplet lifetimes. A representative complex is crystallographically characterized. Transport and luminescence are demonstrated in cultured human carcinoma (KB3-1) cells.

Comments

This research was supported by NSF grant CBET 1066107.

DOI

10.1002/chem.201301776

Version

Publisher's PDF

Volume

19

Issue

47

Included in

Chemistry Commons

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