Adsorption and photodynamic efficiency of meso-tetrakis(p-sulfonatophenyl)porphyrin on the surface of bilayer lipid membranes

Publication date: Available online 3 October 2018Source: Journal of Photochemistry and Photobiology B: BiologyAuthor(s): A.N. Konstantinova, V.S. Sokolov, I. Jiménez-Munguía, O.A. Finogenova, Yu.A. Ermakov, Yu.G. GorbunovaAbstractThe adsorption and photodynamic efficiency of 5,10,15,20-tetrakis(p-sulfonatophenyl)porphyrin (H2TPPS4) on bilayer lipid membranes (BLM) have been studied. The adsorption of H2TPPS4 on BLM leads to rising of the potential drop on the membrane/water interface which has been detected either by the intramembrane field compensation (IFC) method, or as ζ-potential of liposomes measured by the dynamic light scattering method. The dependence of this potential on the concentration of H2TPPS4 and KCl in the solution can be described in the frame of Gouy-Chapman model of...

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