LOW‐TEMPERATURE PHOTOACOUSTIC SPECTROSCOPY OF PORPHYROPSIN IN THE INTACT RETINA OF THE CREEK CHUB, Semotilus atromaculatus

Minjoong Yoon, Roger Leblanc, M. Ather Ali, Peter H. Heinermann

Research output: Contribution to journalArticle

Abstract

Abstract— The photoacoustic spectra of porphyropsin in the creek chub Semotilus atromaculatus have been successfully measured on single retinae of small size (< 0.5 cm in diameter) at low temperatures. The relative intensities of the spectra, corresponding to the thermal release, are strong enough to be comparable to those for the big cattle retina. The photoacoustic spectrum of porphyropsin at – 167°C exhibits a principal maximum at 540 nm with a small shoulder near 580 nm. A sequence of porphyropsin bleaching resulted from thermal reaction has been clearly observed above ‐90°C.

Original languageEnglish (US)
Pages (from-to)549-552
Number of pages4
JournalPhotochemistry and Photobiology
Volume48
Issue number4
DOIs
StatePublished - 1988
Externally publishedYes

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Photoacoustic spectroscopy
Cyprinidae
photoacoustic spectroscopy
retina
Retina
Spectrum Analysis
Photoacoustic effect
Hot Temperature
cattle
bleaching
Bleaching
shoulders
Temperature
porphyropsin

ASJC Scopus subject areas

  • Medicine(all)
  • Biochemistry
  • Physical and Theoretical Chemistry

Cite this

LOW‐TEMPERATURE PHOTOACOUSTIC SPECTROSCOPY OF PORPHYROPSIN IN THE INTACT RETINA OF THE CREEK CHUB, Semotilus atromaculatus. / Yoon, Minjoong; Leblanc, Roger; Ali, M. Ather; Heinermann, Peter H.

In: Photochemistry and Photobiology, Vol. 48, No. 4, 1988, p. 549-552.

Research output: Contribution to journalArticle

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