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. Author manuscript; available in PMC: 2017 Jan 21.
Published in final edited form as: Cell Chem Biol. 2016 Jan 21;23(1):183–197. doi: 10.1016/j.chembiol.2015.11.010

Figure 2. Solution platforms for studying DNA CT.

Figure 2

Top: In the initial studies of DNA CT, electron transfer between metal complexes via the DNA could be detected by monitoring the quenching of the fluorescence from a tethered ruthenium metal complex (green) by a distally tethered rhodium complex (red). Bottom: DNA CT can also be detected by monitoring the oxidation of guanine by a tethered rhodium photooxidant (red) injecting holes into the DNA that localize to the distal guanines. Structure of an intercalating photooxidant [Rh(phi)2(bpy′)]2+ is shown.

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