Sun Yanwen, Yan Keqian, Huang Xirong
Key Laboratory of Colloid & Interface Chemistry of the Education Ministry of China, Shandong University, Jinan 250100, PR China.
Key Laboratory of Colloid & Interface Chemistry of the Education Ministry of China, Shandong University, Jinan 250100, PR China.
Colloids Surf B Biointerfaces. 2014 Oct 1;122:66-71. doi: 10.1016/j.colsurfb.2014.06.040. Epub 2014 Jun 27.
The phase behavior of the pseudo ternary system 1-tetradecyl-3-methylimidazolium bromide ([C14mim]Br)/Triton X-100/H2O/1-butyl-3-methylimidazolium hexafluorophosphate ([Bmim]PF6) has been studied at 35°C. With the increase in the mole fraction of Triton X-100 in the mixed surfactants, the water solubilization capacity increases and the monophasic area enlarges. The H2O-in-[Bmim]PF6 (W/IL) microemulsion was identified via electrical conductivity measurement. The existence of bulk water in the W/IL microemulsion was demonstrated based on the change of the O-D vibration frequency with content of D2O added and confirmed using UV-vis technique with CoCl2 as probe. Laccase can be solubilized in the W/IL microemulsion and exhibits a catalytic activity. The interface of the W/IL microemulsion has an inhibitory effect on the expression of the laccase activity, and the inhibitory effect is varied with the molar ratio of the mixed surfactants.
已在35°C下研究了伪三元体系1-十四烷基-3-甲基咪唑溴盐（[C14mim]Br）/ Triton X-100 / H2O / 1-丁基-3-甲基咪唑六氟磷酸盐（[Bmim]PF6）的相行为。随着混合表面活性剂中Triton X-100摩尔分数的增加，水增溶能力增强，单相区域扩大。通过电导率测量确定了[Bmim]PF6包水型（W/IL）微乳液。基于添加的D2O含量对O-D振动频率的变化，证明了W/IL微乳液中大量水的存在，并使用以CoCl2为探针的紫外可见技术进行了确认。漆酶可溶解于W/IL微乳液中并表现出催化活性。W/IL微乳液的界面漆酶活性的表达具有抑制作用，且抑制作用随混合表面活性剂的摩尔比而变化。
