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| 標題: | Effects of 1-hexadecyl-3-methylimidazolium ionic liquids on the physicochemical characteristics and cytotoxicity of phosphatidylcholine vesicles |
| 作者: | Liang, Chia-Hua
Ho, Wen-Yueh
Yeh, Li-Hsien
Cheng, Yu-Shen
Chou, Tzung-Han |
| 貢獻者: | 化妝品應用與管理系 |
| 關鍵字: | Long Alkyl-Chain Imidazolium-Based Ionic Liquids
Phosphatidylcholines
Physicochemical Characteristics
Vesicles
Cytotoxicity
Apoptotic Characteristic |
| 日期: | 2013-09 |
| 上傳時間: | 2014-05-26 10:45:29 (UTC+8) |
| 出版者: | Elsevier Science Bv |
| 摘要: | This report is the first to study behaviors of nano-scale colloids prepared by long alkyl-chain imidazolium-based ionic liquids (LILs), namely, 1-hexadecyl-3-methylimidazolium hexafluorophosphate (C16MIMPF6) and 1-hexadecyl-3-methylimidazolium bromide (C16MIMBr), as well as phosphatidylcholines (PCs), including hydrogenated soybean phosphatidylcholine (HSPC) and egg phosphatidylcholine (EPC). The effects of LILs on the physicochemical characteristics of PC vesicles are investigated using morphological observations and measurements of particle size, zeta potential, and fluorescence polarization. The experimental data reveal that the incorporation of LILs into PC vesicles shows significant changes in the size, turbidity, zeta potential, storage stability, and membrane fluidity of colloids, which may be correlated with the counter-ions of the LILs, the degree of saturation of the PCs, and the vesicular composition. In addition, the cell viability of HaCaT. A431, and SCC25 cells decreases in a dose-dependent manner and is associated with the composition of the PC vesicles that are incorporated with LIL. The apoptotic characteristic of cells is more significant for the PC vesicles that incorporate a higher molar ratio of LILs at dispersion concentrations of 0.1 and 1 mM. This work suggests that cytotoxicity is dependent on the counter-ions of LILs, the composition and concentration of dispersions, and the physicochemical properties of mixed LIL/PC colloids. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved. |
| 關聯: | Colloids And Surfaces A-Physicochemical And Engineering Aspects, v.436 pp.1083-1091 |
| 顯示於類別: | [化妝品應用與管理系(所)] 期刊論文
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