Reductively Induced Catalytic DNA Cleavage of Water Soluble RhIII-Br8TMPyP
Tóm tắt
The RhIII(Br8TMPyP)5+ showed a catalytic DNA cleavage in the presence of ascorbic acid. The UV–visible, Cyclic Votlammetric (CV) and Electron Spin Resonance (ESR) data confirmed involvement of the reduced form of the RhIII-Br8TMPyP, RhIII(Br8TMPyP)4+·
radical, in the catalytic cycle. Gel-electrophoresis, results revealed that, RhIII(Br8TMPyP)5+ could cleave DNA at 0.01–0.1 μM levels which is significantly higher than that of other metalloporphyrins.
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