Fluorescence Resonance Energy Transfer between Cationic Porphyrins Accelerated with DNA as a Template

  • Francis D’Souza
    Department of Chemistry, Wichita State University
  • Lisa M Rogers
    Department of Chemistry, Wichita State University
  • D-M Shafiqul Islam
    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
  • Yasuyuki Araki
    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
  • Osamu Ito
    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
  • Takehiko Wada
    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

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Abstract

<jats:title>Abstract</jats:title> <jats:p>Resonance energy transfer between two cationic porphyrins, viz., (meso-tetrakis(N-methylpyridinium-4-yl)porphyrin and its zinc derivative, along a model DNA, poly(dA-dT) as a template is demonstrated. The rate of energy transfer (kEnT), quantum yield (ΦEnT), and critical transfer distance are evaluated to be 1.78×109 s−1, 0.74, and 23 Å, respectively, indicating efficient energy transfer process.</jats:p>

Journal

  • Chemistry Letters

    Chemistry Letters 37 (4), 460-461, 2008-03-25

    Oxford University Press (OUP)

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