X‐RAY INDUCED VISIBLE LUMINESCENCE OF PORPHYRINS

Sophia Kokotov; Aaron Lewis; Ronny Neumann; Shmuel Amrusi

doi:10.1111/j.1751-1097.1994.tb05052.x

X‐RAY INDUCED VISIBLE LUMINESCENCE OF PORPHYRINS

Sophia Kokotov
, Aaron Lewis^*
, Ronny Neumann
, Shmuel Amrusi

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

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‐diphenyloxa‐zole, 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 language	English
Pages (from-to)	385-387
Number of pages	3
Journal	Photochemistry and Photobiology
Volume	59
Issue number	3
DOIs	https://doi.org/10.1111/j.1751-1097.1994.tb05052.x
State	Published - Mar 1994

Access to Document

10.1111/j.1751-1097.1994.tb05052.x

Cite this

@article{71b66f0c45054354bbac2b73574494a8,

title = "X‐RAY INDUCED VISIBLE LUMINESCENCE OF PORPHYRINS",

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‐diphenyloxa‐zole, 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.",

author = "Sophia Kokotov and Aaron Lewis and Ronny Neumann and Shmuel Amrusi",

year = "1994",

month = mar,

doi = "10.1111/j.1751-1097.1994.tb05052.x",

language = "אנגלית",

volume = "59",

pages = "385--387",

journal = "Photochemistry and Photobiology",

issn = "0031-8655",

publisher = "John Wiley and Sons Inc.",

number = "3",

}

TY - JOUR

T1 - X‐RAY INDUCED VISIBLE LUMINESCENCE OF PORPHYRINS

AU - Kokotov, Sophia

AU - Lewis, Aaron

AU - Neumann, Ronny

AU - Amrusi, Shmuel

PY - 1994/3

Y1 - 1994/3

N2 - 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‐diphenyloxa‐zole, 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.

AB - 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‐diphenyloxa‐zole, 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.

UR - https://www.scopus.com/pages/publications/0028395378

U2 - 10.1111/j.1751-1097.1994.tb05052.x

DO - 10.1111/j.1751-1097.1994.tb05052.x

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

C2 - 8016220

AN - SCOPUS:0028395378

SN - 0031-8655

VL - 59

SP - 385

EP - 387

JO - Photochemistry and Photobiology

JF - Photochemistry and Photobiology

IS - 3

ER -

X‐RAY INDUCED VISIBLE LUMINESCENCE OF PORPHYRINS

Abstract

Access to Document

Other files and links

Fingerprint

Cite this