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فهرست مقالات

The effect of Environmental exposure to some chemical solvents on DPPC as important component of lung surfactant: an ab initio study


(8 صفحه - از 159 تا 166)

One of the main components of lung alveoli is surfactant. DPPC (Dipalmitolphosphatidylcholine) is the predominant lipid component in lung surfactant that is responsible for lowering surface tension in alveoli in this article. We used a very approximate model with computational method of Ab initio to describe the interactions between DPPC as important component of lung surfactant and some chemical solvents such as Benzene, Toluene, Heptane, Acetone and Ethanol which cause Lung injuries that contribute to respiratory distress such as ARDS. The effect of these solvents on the conformation and disordering DPPC head group has been investigated with calculation at the Hatree-Fock level using the 6-31G basis set with Onsager continuum salvation, GAIO and frequency models. In concern with conformational energy, Water could be the most suitable solvent for DPPC. It could be in polar medium DPPC conformer becomes additionally stabilized by intermolecular ionic and hydrogen bond interactions with polar neighboring molecules. On the other hand, this study shows that Ethanol has the most effect on conformation and lipid disorder DPPC head group of lung surfactant in our model.

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