EFFECT OF THE PHASE TRANSITION IN LIPOSOMES ON THE FLUORESCENCE OF AMPHIPHILIC CYANINE DYES.

Kaoru Onuki, Kazue Kurihara, Yoshinori Toyoshima, Mitsunori Sukigara

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

N,N prime -dioctadecyl oxacarbocyanine iodide or N,N prime -dioctadecyl thiacarbocyanine bromide was incorporated into single lamellar liposomes, and the fluorescence intensity of each dye was observed to be modified considerably by the phase transition of the lipid bilayers. An amphiphilic cyanine dye with single long alkyl chain, N-octadecyl-N prime -methyl thiacarbocyanine bromide was also incorporated in the lipid bilayers, but in this case, the phase transition showed little effect on the fluorescence intensity. These results are interpreted in terms of the effect of the bilayer membrane fluidity and rigidity on the rotational motion of the incorporated cyanine dyes.

Original languageEnglish
Pages (from-to)1914-1917
Number of pages4
JournalBulletin of the Chemical Society of Japan
Volume53
Issue number7
DOIs
Publication statusPublished - 1980 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)

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