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

Fingerprint

Hematoporphyrins
Porphyrins
Luminescence
porphyrins
assembly
X-Rays
luminescence
X rays
Singlet Oxygen
Chromophores
meteorology
latex
chromophores
Quenching
polystyrene
emission spectra
x rays
quenching
Irradiation
Oxygen

ASJC Scopus subject areas

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

Cite this

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

X-ray induced visible luminescence of porphyrins. / Kokotov, S.; Lewis, A.; Neumann, Ronny; Amrusi, S.

In: Photochemistry and Photobiology, Vol. 59, No. 3, 03.1994, p. 385-387.

Research output: Contribution to journalArticle

Kokotov, S, Lewis, A, Neumann, R & Amrusi, S 1994, 'X-ray induced visible luminescence of porphyrins.', Photochemistry and Photobiology, vol. 59, no. 3, pp. 385-387.
Kokotov, S. ; Lewis, A. ; Neumann, Ronny ; Amrusi, S. / X-ray induced visible luminescence of porphyrins. In: Photochemistry and Photobiology. 1994 ; Vol. 59, No. 3. pp. 385-387.
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