Fast exciton migration in porphyrin-functionalized polypeptides

J Phys Chem B. 2005 Jan 13;109(1):33-5. doi: 10.1021/jp044866t.

Abstract

The photophysical properties of L-lysine-based polypeptides bearing porphyrin pendants were investigated. The intramolecular exciton-exciton annihilation resulting from the exciton migration among the porphyrin units deactivates the singlet excited state efficiently. It was revealed that the rate of the exciton migration depends on the polymerization degree.

Publication types

  • Letter
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Models, Chemical
  • Molecular Structure
  • Peptides / chemistry*
  • Photochemistry
  • Porphyrins / chemistry*
  • Time Factors

Substances

  • Peptides
  • Porphyrins