Mesoscale DNA Structural Changes on Binding and Photoreaction with Ru[(TAP)2PHEHAT]2

We used scanning force microscopy (SFM) to study the binding and excited state reactions of the intercalating photoreagent Ru[(TAP)2PHEHAT]2+ (TAP = 1,4,5,8-tetraazaphenanthrene; PHEHAT = 1,10-phenanthrolino[5,6-b]1,4,5,8,9,12-hexaazatriphenylene) with DNA. In the ground state, this ruthenium comple...

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