0000000000305536

AUTHOR

Marcus J. B. Hauser

showing 2 related works from this author

Kinetic evidence for the incorporation of the [(pentamethylcyclopentadienyl) (2,2′-bipyridyl)(aquo)rhodium(III)] complex into DPPC vesicles

2008

Abstract The binding of the [(pentamethylcyclopentadienyl) (2,2′-bipyridyl)(aquo)rhodium(III)] complex [Cp*RhIII(bpy)H2O]2+, to l -α-dipalmitoylphosphatidyl choline (DPPC) vesicles has been estimated by studying the kinetics of the electron transfer reaction between the rhodium(III) complex and formiate ions. Kinetic measurements carried out under anaerobic conditions in absence and presence of DPPC show that the total reaction is composed of two steps. The rate of the first reaction increases with the phospholipid concentration, while that of the second process is independent of the concentration of DPPC. This is consistent with a reaction, where the two reacting species are partitioned be…

vesicles L-alfa-dipalmitoylphosphatidyl choline (DPPC) rate constant bindingAqueous solutionLiaisonStereochemistryVesicleKineticstechnology industry and agriculturePhospholipidchemistry.chemical_elementBinding constantRhodiumchemistry.chemical_compoundCrystallographyElectron transferColloid and Surface Chemistrychemistrylipids (amino acids peptides and proteins)Colloids and Surfaces A: Physicochemical and Engineering Aspects
researchProduct

The solubilization site of 5,10,15,20-tetrakis-(2,6-dichlorophenyl)-porphyrin-Mn(III) in DPPC vesicles: A spectrophotometric and tensiometric study

2006

Abstract The solubilization site of 5,10,15,20-tetrakis-(2,6-dichlorophenyl)-porphyrin-Mn(III) (MnTDPPC) in l -α-dipalmitoylphosphatidyl choline (DPPC) vesicles was determined in a systematic UV–vis spectrophotometric study. Measurements of the MnTDPPC absorbance have been conducted at constant temperatures (in the interval 30 °C ≤ T ≤ 48 °C) and varying concentrations of phospholipid. In the entire temperature range, the absorption due to MnTDCCP was found to increase with increasing DPPC concentration, until it reaches a plateau value. The data have been analyzed using a pseudo-phase model yielding the binding constant of MnTDCPP to vesicular aggregates. No significant temperature depende…

ChromatographyChemistryVesicletechnology industry and agricultureAqueous two-phase systemAnalytical chemistryPorphyrinBinding constantHydrophobic effectPartition coefficientAbsorbancechemistry.chemical_compoundColloid and Surface ChemistryAbsorption (chemistry)Colloids and Surfaces A: Physicochemical and Engineering Aspects
researchProduct