Porphyrins encapsulated into pluronic F127 micelles: Evaluating the effect of the central metal and substituents on the photophysicochemical properties in water

Abstract

Metal free 5-(4-carboxyphenyl)-10,15,20-tris(phenyl)porphyrin (1-H2) and its ClGa derivative (1-ClGa), as well as metal free 5-(4-(4-carboxyphenoxy)phenyl)-10,15,20-tris(phenyl)porphyrin (2-H2) and its ClGa (2-ClGa), Zn (2-Zn) and Cl2Si (2-Cl2Si) derivatives were encapsulated into Pluronic F127 micelles to form 1-H2+F127, 2-H2+F127, 2-ClGa+F127, 2-Zn+F127 and 2-Cl2Si+F127. The fluorescence and singlet oxygen generating behaviour of the porphyrins were also investigated. The Stern-Volmer constant (Ksv) for 2-Zn+F127 was the highest compared to other porphyrin derivatives.