Mixed f−d Coordination Complexes as Dual Visible- and Near-Infrared-Emitting Probes for Targeting DNA
摘要:
A new family of mixed-lanthanide (Yb-III and Nd-III) transition-metal (f-d) cyclen-Ru-II(phen)(3) (phen = 1,10-phenanthroline) complexes were synthesized as dual visible- and near-infrared (NIR)-emitting DNA probes/sensors. Significant changes were seen in both the Ru-II visible and the Yb-III-centered NIR emission, which was switched off upon binding to DNA at pH 7.4. In contrast, no changes were seen in the Nd-III emission of the analogue f-d conjugate.