添加劑對於陰陽離子雙層膜之相轉移行為的探討

張維瀚

doi:10.6844/NCKU.2012.00418

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添加劑對於陰陽離子雙層膜之相轉移行為的探討

Calorimetric Study of the Additive Effects on the Gel to Liquid-Crystalline Phase Transition Behavior of Catanionic Bilayer Membrane

張維瀚 , Masters　　Advisor：楊毓民　　

繁體中文 DOI： 10.6844/NCKU.2012.00418

陰陽離子界面活性劑；相轉移行為；相轉移溫度；相轉移焓；膽固醇；維他命E ；維他命E醋酸酯； ion pair amphiphile ； catanionic surfactant ； bilayer membrane ； phase transition temperature ； enthalpy change

Abstract │ Reference (141) │ Times Cited (2) │ Altmetrics

Abstract 〈TOP〉

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Four ion pair amphiphiles(IPAs) of different hydrocarbon chain lengths with symmetric and asymmetric hydrocarbon chains were prepared from cationic and  anionic surfactants by the precipitation in this work. By using differential scanning calorimetry(DSC), the thermotropic transition behavior from gel to liquid-crystalline state was measured for bilayer membranes of these lipid-like catanionic surfactants. Moreover, the effects of additives(cholesterol, vitamin E, and vitamin E acetate) in catanionic bilayer membranes on phase transition temperature, enthalpy change and entropy change were determined. 
The experimental results showed that the phase transition temperature is higher for catanionic surfactants with higher total carbon number in the hydrocarbon chains. And for the catanionic surfactants with the same total carbon number in the hydrocarbon chains, the phase transition temperature is higher for the symmetric one than that with asymmetric one. No consistent trend in enthalpy changes, however, was exhibited by the different catanionic surfactants. With the addition of cholesterol, vitamin E, and vitamin E acetate in the bilayer membrane of catanionic surfactants, the phase transition temperatures were found to be unaffected. On the other hand, the enthalpy and entropy changes decreased with the increase of these three additives.

Reference ( 141 ) 〈TOP〉

Abu Lila, A.S., Kizuki, S., Doi, Y., Suzuki, T., Ishida . T. and Kiwada, H.,“Oxaliplatin encapsulated in PEG-coated cationic liposomes induces significant tumor growth suppression via a dual-targeting approach in a murine solid tumor model,” Journal of Controlled Release 137, 8-14, 2009.
連結：
Alonso, J. M., Llhcer, C., Vila, A.O., Figueruelo, J. E. and Molina, F. J., “Effect of the osmotic conditions on the value of ζ potential of DMPC multilamellar liposomes,” Colloids and Surfaces A: Physicochem. Eng. Aspects 95, 11-14, 1995.
連結：
Andresen, T. L., Davidsen, J., Begtrup, M., Mouritsen, O. G. and Jorgensen, K., “Enzymatic release of antitumor ether lipids by specific phospholipase A2 activation of liposome-forming products,” J. Med. Chem. 47, 1694-1703, 2004.
連結：
Antonietti, M. and Főrter, S., “Vesicles and liposomes : A self-assembly principle beyond lipid, ” Adv. Mater. 15, 1323-1333, 2003.
連結：
Apel-Paz, M., Doncel, G. F. and Vanderlick, T. K., “Impact of membrane cholesterol content on the resistance of vesicles to surfactant attack,” Langmuir 21, 9843-9849, 2005.
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