کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1945984 | 1053282 | 2006 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Study of calix[4]resorcinarene–dopamine complexation in mixed phospholipid monolayers formed at the air–water interface Study of calix[4]resorcinarene–dopamine complexation in mixed phospholipid monolayers formed at the air–water interface](/preview/png/1945984.png)
We have studied the physical properties of monolayers formed by calix[4]resorcinarene and in mixtures with dipalmitoyl phosphatidylcholine (DPPC) in various molar ratios formed at the air–water interface and at presence of dopamine in water subphase by means of measurements of surface pressure and dipole potential. We showed that both calix[4]resorcinarene as well as its mixture with DPPC form stable monolayers at the water subphase. The presence of dopamine resulted in an increase of the mean molecular area and in a decrease of the compressibility modulus of the monolayers. For mixed monolayers at higher content of calix[4]resorcinarene (> 0.2 molar fraction) a deviation from ideal miscibility took place especially for monolayers in a solid state. This can be connected with formation of aggregates of calix[4] resorcinarene. Lowest miscibility and weakest interaction of dopamine with a monolayer was observed for calix[4]resorcinarene molar fraction of 0.33 in the monolayer.
Journal: Biochimica et Biophysica Acta (BBA) - Biomembranes - Volume 1758, Issue 11, November 2006, Pages 1852–1861