The dynamics of the surface layer of lipid membranes doped by vanadium complex : computer modeling and EPR studies

• Autorzy: Olchawa R. , Man D. , Pytel B.

Identyfikatory

DOI

10.1515/nuka-2015-0070

• Konferencja: III Electron Magnetic Resonance Forum EMR-PL (3 ; 23-25.05.2014 ; Kraków, Poland)
• Języki publikacji: EN

Abstrakty

EN

Penetration of the liposome membranes doped with vanadium complex formed in the liquid-crystalline phase from egg yolk lecithin (EYL) by the TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl) spin probes has been investigated. The penetration process was followed by 360 hours at 24◦C, using the electron spin resonance (EPR) method. The spectroscopic parameter of the partition (F) of this probe indicated that a maximum rigidity of the membrane was at 3% concentration of the vanadium complex. Computer simulations showed that the increase in the rigidity of the membrane corresponds to the closure of gaps in the surface layer of the membrane, and indicates the essential role of the membrane surface in transport processes.

Słowa kluczowe

EN

EPR probe; lipid membrane; membrane fluidity; Monte Carlo simulation

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2015
• Tom: Vol. 60, No. 3, part 1
• Strony: 395--398
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Olchawa R.

• Institute of Physics, Opole University, 48 Oleska Str., 45-052 Opole, Poland

autor

Man D.

• Institute of Physics, Opole University, 48 Oleska Str., 45-052 Opole, Poland

autor

Pytel B.

• Institute of Physics, Opole University, 48 Oleska Str., 45-052 Opole, Poland

Bibliografia

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