National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing, China.
Colloids Surf B Biointerfaces. 2012 Jan 1;89:228-33. doi: 10.1016/j.colsurfb.2011.09.014. Epub 2011 Sep 16.
Calcium cation (Ca(2+)) is a key element to the cell membrane functions. Its effects on liquid crystal vesicle deposition have already been learnt. In this study, it is found that Ca(2+) can also influence the gel vesicle deposition by controlling the vesicle rupture and fusion on SiO(2) at temperatures lower than the main transition temperature. Particular analyses were given to the vesicle-SiO(2) and inter-vesicle attractions that are originated from the Ca(2+) bridging effect. It is concluded that the aggregate condition of vesicles should be taken into consideration when dealing with vesicle deposition on a solid substrate.
钙离子(Ca(2+))是细胞膜功能的关键元素。已经了解到它对液晶囊泡沉积的影响。在这项研究中,发现 Ca(2+) 还可以通过控制低于主转变温度时囊泡在 SiO(2)上的破裂和融合来影响凝胶囊泡的沉积。特别分析了源于 Ca(2+)桥接效应的囊泡-SiO(2)和囊泡间吸引力。得出的结论是,在处理囊泡在固体基底上的沉积时,应该考虑囊泡的聚集状态。