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Modulating the Nucleated Self-Assembly of Tri-beta(3)-Peptides Using Cucurbit[n]urils

机译:调制使用葫芦[n] urils的Tri-beta(3)肽有核自组装。

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The modulation of the hierarchical nucleated self-assembly of tri-beta(3)-peptides has been studied. beta(3)-Tyrosine provided a handle to control the assembly process through host-guest interactions with CB[7] and CB[8]. By varying the cavity size from CB[7] to CB[8] distinct phases of assembling tri-beta(3)-peptides were arrested. Given the limited size of the CB[7] cavity, only one aromatic beta(3)-tyrosine can be simultaneously hosted and, hence, CB[7] was primarily acting as an inhibitor of self-assembly. In strong contrast, the larger CB[8] can form a ternary complex with two aromatic amino acids and hence CB[8] was acting primarily as cross-linker of multiple fibers and promoting the formation of larger aggregates. General insights on modulating supramolecular assembly can lead to new ways to introduce functionality in supramolecular polymers.
机译:Tri-beta(3)肽的分层有核自组装的调制进行了研究。 beta(3)-酪氨酸通过与CB [7]和CB [8]的来宾-来宾相互作用提供了控制组装过程的手柄。通过从CB [7]到CB [8]改变腔体的大小,可以阻止组装三β(3)肽的不同相。鉴于CB [7]腔的大小有限,只能同时容纳一个芳香族β(3)-酪氨酸,因此CB [7]主要起自组装抑制剂的作用。与之形成强烈反差的是,较大的CB [8]可以与两个芳香族氨基酸形成三元络合物,因此CB [8]主要充当多根纤维的交联剂并促进较大聚集体的形成。关于调节超分子组装的一般见解可以导致在超分子聚合物中引入功能的新方法。

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