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CO2-Switchable Supramolecular Block Glycopolypeptide Assemblies

机译:二氧化碳可转换的超分子嵌段糖多肽组装体

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摘要

A novel supramolecular block glycopolypeptide, designed to have the viral building blocks and be sensitive to CO2, a physiological stimulus, was prepared via the orthogonal coupling of two end-functionalized biopolymers, dextran with β-cyclodextrin terminal (Dex-CD) and poly(L-valine) with a benzimidazole tail (BzI-PVal), respectively, driven by the end-to-end host-guest interactions. Due to the CO2-cleavable CD/BzI connection, both the vesicular and fibrous aggregates of this supramolecular block copolymer self-assembled in aqueous solution can undergo a reversible process of disassembly upon “breathing in” CO2 and assembly upon “breathing out” CO2, which mimics, to some extent, the disintegration and construction of viral capsid nanostructures.
机译:通过将两个末端官能化的生物聚合物,右旋糖酐与β-环糊精末端(Dex-CD)和聚()进行正交偶联,制得了一种新型的超分子嵌段糖多肽,该肽被设计为具有病毒结构单元并对生理敏感的CO2敏感。 L-缬氨酸)具有苯并咪唑尾(BzI-PVal),分别受端到端宿主-客体相互作用的驱动。由于可通过CO2裂解的CD / BzI连接,这种在水溶液中自组装的超分子嵌段共聚物的囊状和纤维状聚集体在“吸入” CO2时都会经历可逆的分解过程,而在“吸入” CO2时会经历可逆的分解过程,在某种程度上模拟了病毒衣壳纳米结构的分解和构建。

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