Fibrous Networks with Incorporated Macrocycles: A Chiral Stimuli-Responsive Supramolecular Supergelator and Its Application to Biocatalysis in Organic Media
作者:Zhenhui Qi、Changzhu Wu、Paula Malo de Molina、Han Sun、Andrea Schulz、Christian Griesinger、Michael Gradzielski、Rainer Haag、Marion B. Ansorge-Schumacher、Christoph A. Schalley
DOI:10.1002/chem.201300193
日期:2013.7.29
A new and versatile, crown ether appended, chiral supergelator has been designed and synthesized based on the bis‐urea motif. The introduction of a stereogenic center improved its gelation ability significantly relative to its achiral analogue. This low‐molecular‐weight gelator forms supramolecular gels in a variety of organic solvents. It is sensitive to multiple chemical stimuli and the sol–gel phase
根据双脲基序,设计并合成了一种新型的多功能,冠状醚附加手性超级凝胶剂。相对于其非手性类似物,立体定向中心的引入显着提高了其胶凝能力。这种低分子量胶凝剂可在多种有机溶剂中形成超分子凝胶。它对多种化学刺激敏感,溶胶-凝胶相变可通过宿主-客体相互作用可逆地触发。该凝胶可用于捕获酶并根据需要通过化学刺激释放它们。它稳定了Pickering乳液中的微粒,使酶催化的有机反应可以在微粒内部的极性相中发生,有机反应物从周围的有机相扩散穿过两相界面。