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Structurally Controlled Porphyrin‐Aggregation Process in Phospholipid Membranes
Author(s) -
Borovkov Victor V.,
Anikin Michael,
Wasa Kiyotaka,
Sakata Yoshiteru
Publication year - 1996
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1996.tb03072.x
Subject(s) - porphyrin , phospholipid , membrane , chemistry , process (computing) , biophysics , biochemistry , computer science , biology , operating system
— Structurally controlled aggregation course for five porphyrins (etioporphyrin [EP], 5‐mono‐ and 5,15‐di‐[ p ‐tol‐yl]etioporphyrin [TP and DTP], 5,10,15,20‐tetrakis[ p ‐tol‐y1]porphin [TTP], and 5,10,15,20‐tetrakis[3,5‐di‐ tert ‐bu‐tylphenyl]porphin [TBP]) in dipalmitoyl‐phosphatidyl‐choline liposomes has been monitored by fluorescence and absorption spectroscopy. While TBP shows no tendency to aggregate in liposomes, EP, TP, DTP and TTP form a porphyrin‐enriched domain in membrane interior with time. The further aggregation steps within porphyrin clusters resulting in formation of stacked porphyrin aggregates have been observed for EP, TP and DTP.