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首页> 外文期刊>Chemistry: A European journal >Self-assembly studies of a chiral bisurea-based superhydrogelator
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Self-assembly studies of a chiral bisurea-based superhydrogelator

机译：基于手性双脲的超水凝胶剂的自组装研究

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A chiral bisurea-based superhydrogelator that is capable of forming supramolecular hydrogels at concentrations as low as 0.2 mM is reported. This soft material has been characterized by thermal studies, rheology, X-ray diffraction analysis, transmission electron microscopy (TEM), and by various spectroscopic techniques (electronic and vibrational circular dichroism and by FTIR and Raman spectroscopy). The expression of chirality on the molecular and supramolecular levels has been studied and a clear amplification of its chirality into the achiral analogue has been observed. Furthermore, thermal analysis showed that the hydrogelation of compound 1 has a high response to temperature, which corresponds to an enthalpy-driven self-assembly process. These particular thermal characteristics make these materials easy to handle for soft-application technologies. Supergelator with a twist: A chiral bisurea-based compound is capable of forming supramolecular hydrogels at concentrations as low as 0.2 mM (see figure). Molecular chirality is manifested on the supramolecular level and the soft material is easy to handle.
机译：据报道，基于手性双脲的超水凝胶剂能够以低至0.2 mM的浓度形成超分子水凝胶。通过热学研究，流变学，X射线衍射分析，透射电子显微镜（TEM）以及各种光谱技术（电子和振动圆二色性以及FTIR和拉曼光谱）对这种软材料进行了表征。已经研究了手性在分子和超分子水平上的表达，并且已经观察到手性明显地扩增为非手性类似物。此外，热分析表明化合物1的水凝胶化对温度具有高响应，这对应于焓驱动的自组装过程。这些特殊的热特性使这些材料易于用于软应用技术。扭转超级胶凝剂：一种基于手性双脲的化合物能够以低至0.2 mM的浓度形成超分子水凝胶（见图）。分子手性表现在超分子水平上，并且柔软的材料易于处理。

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