文章信息/Info

Title:

Progress of Supermolecular Chiral Gel Materials

作者:

劉國鋒; 張荻; 馮傳良

(上海交通大學(xué)金屬基復(fù)合材料國家重點實驗室,上海 200240)

Author(s):

LIU Guofeng;  ZHANG Di;  FENG Chuanliang

(State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China)

關(guān)鍵詞:

超分子凝膠; 手性; 自組裝; 納米纖維

DOI:

10.7502/j.issn.1674-3962.2013.07.04

摘要:

超分子凝膠作為一類新型的智能自組裝軟材料，從分子水平到微納米水平的組裝過程中，手性發(fā)揮了重要的作用。一般情況下，手性信號都是直接從分子轉(zhuǎn)換到納米纖維中，但也有一些有趣的現(xiàn)象，即混合兩種對映體可以調(diào)控得到不同手性形態(tài)的纖維結(jié)構(gòu)，甚至一些本身不具備手性的構(gòu)筑塊同樣可以通過外界誘導(dǎo)得到具有手性結(jié)構(gòu)的組裝體。對纖維手性自組裝機理的研究不僅揭示了分子手性到纖維微納米手性轉(zhuǎn)換這一重要過程，而且對新型的手性材料和微納米器件的開發(fā)也有啟發(fā)作用。有關(guān)微納米水平的手性材料在手性識別、不對稱催化、生物大分子結(jié)晶和無機材料的手性模板劑、生物醫(yī)用等領(lǐng)域的應(yīng)用研究也逐漸得到重視。主要綜述了近二十年來有關(guān)手性超分子凝膠的研究，主要從凝膠因子的手性自組裝、手性在分子水平和微納米水平上的形貌調(diào)控和表征方法、超分子凝膠的手性應(yīng)用幾個方面進行概述，并對手性超分子凝膠的應(yīng)用和研究前景進行了展望。

Abstract:

Supramolecular gel is a kind of new intelligent self�瞐ssembly soft material. The chirality has played an important role in constructing chiral information from molecular level to nanometer fiber level. In most cases, chiral information is directly constructed from molecular building to the nanometer fiber. There are also some interesting phenomenon, which is that two mixed two enantiomers can get different chiral fiber structure, even someone building blocks with no chiral can also get chiral self�瞐ssembly structures. Studying chiral self�瞐ssembly not only reveals the process of switching chiral information from molecules to micro/nano chiral fiber, but also promotes the development of novel chiral materials and micro/nano devices. The application of fiber chiral in chiral recognition, asymmetric catalysis, biological mineralization, biological materials, and other areas has been paid attention. This paper summarizes recent progress in the chiral fiber assembly, mainly on structure and function of the chiral supramolecular gel.��