Interaction of water-soluble cationic porphyrin with anionic surfactant

被引：19

作者：

Qiu, Wen-Ge ^{[1
]}

Li, Zong-Feng ^{[1
]}

Bai, Guang-Mei ^{[1
]}

Meng, Sheng-Nan ^{[1
]}

Dai, Hong-Xing ^{[1
]}

He, Hong ^{[1
]}

机构：

[1] Beijing Univ Technol, Coll Environm & Energy Engn, Dept Sci & Chem Engn, Beijing 100022, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2007年 / 68卷 / 05期

关键词：

water-soluble porphyrin; surfactant; premicellar aggregate; micellized monomer; AQUEOUS MICELLAR MEDIA; SPECTROSCOPIC CHARACTERIZATION; DNA-BINDING; AGGREGATION; MESO-TETRAKIS(4-SULFONATOPHENYL)PORPHYRIN; CYTOCHROME-P450; DERIVATIVES; LOCATION; BEHAVIOR;

D O I：

10.1016/j.saa.2007.01.015

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The interaction of a cationic water-soluble porphyrin, 5,10,15,20-tetrakis [4-(3-pyridiniumpropoxy)phenyl]porphyrin tetrakisbromide (TPPOC3Py), with anionic surfactant, sodium dodecyl sulfate (SDS), in aqueous solution has been studied by means of UV-vis, H-1 NMR, fluorescence, circular dichroism (CD) spectra and dynamic laser light scattering (DLLS), and it reveals that TPPOC3Py forms porphyrin-surfactant complexes (aggregates), including ordered structures J- and H-aggregates, induced by association with surfactant monomers below the SDS critical micelle concentration (cmc), and forms micellized monomer upon the cmc, respectively. The position of TPPOC3Py in the micelle is determined, which is not in the micelle core instead of intercalated among the SDS chains, most likely with the pyridinium group extending into the polar headgroup region of the micelle. (c) 2007 Published by Elsevier B.V.

引用

页码：1164 / 1169

页数：6

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