Adsorption of lipids on silicalite-1
- Авторы: Atyaksheva L.1, Ivanova I.1, Ivanova M.2, Tarasevich B.1, Fedosov D.1
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Учреждения:
- Department of Chemistry
- Research Center of Neurology
- Выпуск: Том 91, № 5 (2017)
- Страницы: 969-973
- Раздел: Biophysical Chemistry
- URL: https://journals.rcsi.science/0036-0244/article/view/169505
- DOI: https://doi.org/10.1134/S0036024417050053
- ID: 169505
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Аннотация
The adsorption of egg lecithin and cholesterol from chloroform solutions onto silicalite-1 (hydrophobic silica with MFI zeolite structure) is investigated. Adsorption isotherms of the L-type for lecithin and the S-type for cholesterol are obtained in the 0.05–4.5 mg/mL range of equilibrium lipid concentrations. The maximum adsorption for lecithin is 30 mg/g; for cholesterol it is 70 mg/g. Chloroform treatment results in the desorption of no more than 10% of the lecithin and up to 50% of the cholesterol from the silicalite-1 surface. The lecithin molecules in the monolayer on the silicalite-1 are oriented such that their hydrophobic tails are oriented toward the surface and are partially inside the pores of the adsorbent.
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Об авторах
L. Atyaksheva
Department of Chemistry
Автор, ответственный за переписку.
Email: Atyaksheva@phys.chem.msu.ru
Россия, Moscow, 119991
I. Ivanova
Department of Chemistry
Email: Atyaksheva@phys.chem.msu.ru
Россия, Moscow, 119991
M. Ivanova
Research Center of Neurology
Email: Atyaksheva@phys.chem.msu.ru
Россия, Moscow, 115478
B. Tarasevich
Department of Chemistry
Email: Atyaksheva@phys.chem.msu.ru
Россия, Moscow, 119991
D. Fedosov
Department of Chemistry
Email: Atyaksheva@phys.chem.msu.ru
Россия, Moscow, 119991