Near IR-emitting DNA-probes exploiting stepwise energy transfer processes

Bruce, James; Borbas, K. Eszter and Bodi, Andras (2007). Near IR-emitting DNA-probes exploiting stepwise energy transfer processes. Dalton Transactions, 38 pp. 4352–4358.

DOI: https://doi.org/10.1039/b708940f

Abstract

The synthesis and characterisation of two new cyclen-based near IR-emitting lanthanide complexes are reported; the lanthanides are sensitised by rhodamine, which in turn is excited by energy transfer from a coumarin 2 moiety. Double stranded DNA selectively switches one of the two energy transfer processes off, enabling luminescent Q1 DNA-sensing in the near IR region. The regioselective di-alkylation of the cyclen scaffold is explained with the help of DFT calculations.

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