Wrapping Chiral Nanoribbons into Coiled and Condensed Microstructures in Supramolecular Hydrogels,Advanced Functional Materials

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Wrapping Chiral Nanoribbons into Coiled and Condensed Microstructures in Supramolecular Hydrogels
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2020-07-02 , DOI: 10.1002/adfm.202002936
Fang Wang _{1,

2} , Huibin Qiu ₂ , Chuanliang Feng ₁

Affiliation

Hierarchical self‐assembly of small molecules into supramolecular structures across various length scales is of prominent importance to deeply understand and mimic the biological systems. Here, chiral nanoribbons that assembled from chiral phenylalanine and achiral coumarin derivatives can curve and grow into higher ordered hollow microstructures, which exhibit enhanced acid and alkali resistance. This is predominantly facilitated by the subtle hydrogen bonding interactions and specific steric hindrance between the two molecules. With the addition of metal ions and consequently, the extra association via coordination, these nanoribbons can wrap in a more condensed fashion and eventually form solid microstructures. This study provides implications in understanding the hierarchically biological self‐assembly process and is helpful for the construction of advanced artificial biomedical materials.

中文翻译：

将手性纳米带包装成超分子水凝胶的卷曲和凝聚微结构。

小分子在各种长度尺度上的分层自组装成超分子结构对于深刻理解和模仿生物系统具有重要意义。在这里，由手性苯丙氨酸和非手性香豆素衍生物组装而成的手性纳米带可以弯曲并长成更高阶的中空微结构，表现出增强的耐酸和耐碱性。这主要是由于两个分子之间微妙的氢键相互作用和特定的位阻。由于添加了金属离子，因此，通过配位产生了额外的缔合，这些纳米带可以更凝聚的方式包裹，最终形成固体微结构。

更新日期：2020-08-19

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