物理化学学报2017，Vol.33Issue(4)：836-844,9.DOI:10.3866/PKU.WHXB201612153
二维界面上偶氮苯糖脂的光响应行为
Photo-Responsivity of Azobenzene-Containing Glycolipid within Liquid-Gas Interface
摘要
Abstract
Azobenzene-containing glycolipid,Gal-azo-Cn,was synthesized and its photoisomerization behavior within the liquid-gas interfaces was investigated by Langmuir Blodgett (LB) film measurements and atomic force microscopy.The results showed that Gal-azo-Cn could undergo trans-cis and cis-trans isomerization in both pure glycolipid and phospholipid-mixed films.UV-light induced isomerization increased the surface pressure.However,the membrane pressure within the liquid-gas interface could hinder the trans-cis isomerization.The high membrane pressure prevented the increase of surface pressure,weakening the trans-cis isomerization.In contrast,the cis-trans isomerization sped up in the dark.Compared with the isomerization behavior of pure glycolipid,the interaction between phospholipid and glycolipid could promote the trans-cis isomerization within the liquid-gas interface.In the mixed system,the increase in phospholipid containing unsaturated carbon chains increased the fluidity of the membrane but decreased its stability,which weaken the promotion effect of isomerization.关键词
LB技术/偶氮苯糖脂/光异构化/单分子层膜Key words
LB technology/Azobenzene-containing glycolipid/Photoisomerization/Monomolecular film分类
化学化工引用本文复制引用
刘丹阳,王宛洛,徐首红,刘洪来..二维界面上偶氮苯糖脂的光响应行为[J].物理化学学报,2017,33(4):836-844,9.基金项目
The project was supported by the National Natural Science Foundation of China (21276074,91334203) and Fundamental Research Funds for the Central Universities,China.国家自然科学基金(21276074,91334203)以及中央高校基本科研基金资助项目 （21276074,91334203）
