Single-Molecular Artificial Transmembrane Water Channels
作者:Xiao-Bo Hu、Zhenxia Chen、Gangfeng Tang、Jun-Li Hou、Zhan-Ting Li
DOI:10.1021/ja302292c
日期:2012.5.23
transport of water through the channels produced by single molecules, as supported by dynamic light scattering and cryo-SEM experiments. The channels exhibit the transport activity at a very low channel to lipid ratio (0.027 mol %), and a water permeability of 8.6 × 10(-10) cm s(-1) is realized. In addition, like natural waterchannel proteins, the artificial systems also block the transport of protons.
已经合成了酰肼附加的柱[5]芳烃衍生物。X 射线晶体结构分析和 (1) H NMR 研究表明分子采用独特的管状构象。在动态光散射和冷冻扫描电镜实验的支持下,将分子插入囊泡的脂质膜会导致水通过单分子产生的通道传输。通道在非常低的通道与脂质比 (0.027 mol%) 下表现出运输活性,并实现了 8.6 × 10(-10) cm s(-1) 的透水性。此外,与天然水通道蛋白一样,人工系统也会阻止质子的运输。
A pillar[5]arene based gel from a low-molecular-weight gelator for sustained dye release in water
作者:Yong Yao、Yan Sun、Huaxu Yu、Wenrui Chen、Hong Dai、Yujun Shi
DOI:10.1039/c7dt04001f
日期:——
A soft gel based on pillar[5]arene was successfully prepared using a carbazone reaction.
一种基于柱[5]芳烃的软凝胶已成功制备,采用了卡巴松反应。
POLYACETAL RESIN COMPOSITION
申请人:Polyplastics Co., Ltd.
公开号:EP1686156A1
公开(公告)日:2006-08-02
A polyacetal resin composition comprises a polyacetal resin and a hetero atom-containing aliphatic carboxylic acid hydrazide. The proportion of the hetero atom-containing aliphatic carboxylic acid hydrazide may be about 0.001 to 20 parts by weight relative to 100 parts by weight of the polyacetal resin. The polyacetal resin composition may further comprise at least one member selected from the group consisting of an antioxidant, a heat stabilizer, a processing stabilizer, a weather (light)-resistant stabilizer, an impact resistance improver, a gloss control agent, an agent for improving sliding property, a coloring agent, and a filler. Such a resin composition improves stability of the polyacetal resin and inhibits formaldehyde emission.
Reaction of aryloxyacetic acid hydrazide or arenedioxydiacetic acid hydrazide with 2-ethoxybenzoy chloride and ammonium. thiocyanate under the condition, of solid-liquid phase transfer catalysis using polyethylene glycol-400 (PEG-400) as tire catalyst,yielded the corresponding thiosemicarbazide or bisthiosemicarbazide derivatives of 2-ethoxybenzoic acid in good-to-excellent yield.
Wei, Tai-Bao; Liu, Hong; Li, Man-Lin, Journal of Chemical Research, 2005, # 7, p. 432 - 433