Effect of temperature on the adsorption of phosphatidylcholine by silicon-containing materials with various degrees of order.

Autor: Askurava, A., Sinyaeva, L., Belanova, N., Karpov, S., Selemenev, V., Roessner, F.
Zdroj: Russian Journal of Physical Chemistry; Jun2017, Vol. 91 Issue 6, p1121-1126, 6p
Abstrakt: Features of the adsorption of phosphatidylcholine (PCh) by inorganic silicon-containing materials with various degrees of order (MCM-41, MMC-1, and silica gel) from solutions in hexane under equilibrium conditions in the temperature range of 283-323 K are considered. It is found that the adsorption of the phospholipid within the C = (0.6-4.0) × 10 mmol/dm range of concentrations on the investigated materials is characterized by monomolecular absorption. Differential thermodynamic characteristics (Δ G, Δ H, and Δ S) of the sorption of PCh by silicon-containing materials with various degrees of order in the temperature range of 283-323 K are considered. An increase in the affinity of silicon-containing materials toward the phospholipid upon an increase in the temperature of the sorption process is observed. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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