Abstract
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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The authors would like to acknowledge final support through a Grand-in-Aid C (No. 21550086) from The Ministry of Education, Science, Technology, Sports and Culture (MEXT), Japan and a Japan Science Promotion Society (JSPS) Post-Doctoral Fellowship for Foreign Researchers (PE-007).
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Gunawardhana, N., Homi, S. & Tabata, M. Reductively Induced Catalytic DNA Cleavage of Water Soluble RhIII-Br8TMPyP. Catal Lett 141, 1803–1807 (2011). https://doi.org/10.1007/s10562-011-0718-8
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DOI: https://doi.org/10.1007/s10562-011-0718-8