-transparent.png){kind=logo}
The interaction of the divalent calcium ions with the zwitterionic lipid membranes was studied by measuring the lipid order parameter which is inversely proportional to the membrane fluidity. Small unilamellar lipid vesicles were prepared from 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine and then treated with different concentrations of divalent calcium ions. An increase in the order parameter and decrease in the fluidity of the liposomal membranes were observed after treatment with the calcium ions. The presence of positively charged iron oxide nanoparticles in the suspension of liposomes negligibly changed the results. The results of experiments were discussed theoretically within modified Langevin-Poisson-Boltzmann (MLPB) model leading to the conclusion that the membrane fluidity and ordering of the membrane lipids are primarily altered by the accumulation of calcium ions in the region of negatively charged phosphate groups within the head groups of the membrane lipids.
Poornima Budime Santhosh, and
Aljaž Velikonja, and
Ekaterina Gongadze, and
Aleš Iglič, and
Veronika Kralj-Iglič, and
Nataša Poklar Ulrih
January 1985,
Biochimica et biophysica acta,
Poornima Budime Santhosh, and
Aljaž Velikonja, and
Ekaterina Gongadze, and
Aleš Iglič, and
Veronika Kralj-Iglič, and
Nataša Poklar Ulrih
October 2014,
The European physical journal. E, Soft matter,
Poornima Budime Santhosh, and
Aljaž Velikonja, and
Ekaterina Gongadze, and
Aleš Iglič, and
Veronika Kralj-Iglič, and
Nataša Poklar Ulrih
May 2018,
The European physical journal. E, Soft matter,
Poornima Budime Santhosh, and
Aljaž Velikonja, and
Ekaterina Gongadze, and
Aleš Iglič, and
Veronika Kralj-Iglič, and
Nataša Poklar Ulrih
March 2012,
Biomaterials,
Poornima Budime Santhosh, and
Aljaž Velikonja, and
Ekaterina Gongadze, and
Aleš Iglič, and
Veronika Kralj-Iglič, and
Nataša Poklar Ulrih
May 2017,
Chemical communications (Cambridge, England),
Poornima Budime Santhosh, and
Aljaž Velikonja, and
Ekaterina Gongadze, and
Aleš Iglič, and
Veronika Kralj-Iglič, and
Nataša Poklar Ulrih
December 1981,
Biochemistry,
Poornima Budime Santhosh, and
Aljaž Velikonja, and
Ekaterina Gongadze, and
Aleš Iglič, and
Veronika Kralj-Iglič, and
Nataša Poklar Ulrih
November 1978,
Biochimica et biophysica acta,
Poornima Budime Santhosh, and
Aljaž Velikonja, and
Ekaterina Gongadze, and
Aleš Iglič, and
Veronika Kralj-Iglič, and
Nataša Poklar Ulrih
January 1984,
Biochemistry,
Poornima Budime Santhosh, and
Aljaž Velikonja, and
Ekaterina Gongadze, and
Aleš Iglič, and
Veronika Kralj-Iglič, and
Nataša Poklar Ulrih
October 1978,
Federation proceedings,
Poornima Budime Santhosh, and
Aljaž Velikonja, and
Ekaterina Gongadze, and
Aleš Iglič, and
Veronika Kralj-Iglič, and
Nataša Poklar Ulrih
December 1978,
Biochimica et biophysica acta,
