X-ray induced visible luminescence of porphyrins.

S. Kokotov, A. Lewis, Ronny Neumann, S. Amrusi

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A concept has been presented whereby X-ray irradiation can be used to induce visible luminescence of chromophores such as porphyrins. The essential aspects of the idea have been demonstrated in a supramolecular assembly consisting of a water-dispersed polystyrene latex with an embedded scintillating compound, 2,5-diphenyloxazole, and an externally attached hematoporphyrin. X-ray excitation of the assembly yields an emission spectra typical for hematoporphyrin with fluorescent yields of up to 3% with respect to 2,5-diphenyloxazole emission. Significant quenching in the presence of dioxygen indicates that singlet oxygen is formed at atmospheric conditions.

Original languageEnglish
Pages (from-to)385-387
Number of pages3
JournalPhotochemistry and Photobiology
Volume59
Issue number3
Publication statusPublished - Mar 1994

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry
  • Biophysics

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    Kokotov, S., Lewis, A., Neumann, R., & Amrusi, S. (1994). X-ray induced visible luminescence of porphyrins. Photochemistry and Photobiology, 59(3), 385-387.