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    马晨, 黄晓宇. 聚肽均聚物/嵌段共聚物自组装构建手性纳米环[J]. 功能高分子学报, 2020, 33(6): 519-521. doi: 10.14133/j.cnki.1008-9357.20200804001
    引用本文: 马晨, 黄晓宇. 聚肽均聚物/嵌段共聚物自组装构建手性纳米环[J]. 功能高分子学报, 2020, 33(6): 519-521. doi: 10.14133/j.cnki.1008-9357.20200804001
    MA Chen, HUANG Xiaoyu. Cooperative Self-Assembly of Polypeptide Homopolymer/Block Copolymer into Helical Nanotoroids[J]. Journal of Functional Polymers, 2020, 33(6): 519-521. doi: 10.14133/j.cnki.1008-9357.20200804001
    Citation: MA Chen, HUANG Xiaoyu. Cooperative Self-Assembly of Polypeptide Homopolymer/Block Copolymer into Helical Nanotoroids[J]. Journal of Functional Polymers, 2020, 33(6): 519-521. doi: 10.14133/j.cnki.1008-9357.20200804001

    聚肽均聚物/嵌段共聚物自组装构建手性纳米环

    Cooperative Self-Assembly of Polypeptide Homopolymer/Block Copolymer into Helical Nanotoroids

    • 摘要: 环状结构因其独特的结构和性能受到了广泛的关注。手性在自然界中广泛存在,手性材料在诸多领域表现出优异的性能。聚合物可以自组装形成丰富的结构,包括环状和手性组装体。最近,华东理工大学林嘉平教授和蔡春华教授团队研究发现,聚肽均聚物/嵌段共聚物体系可以自组装形成均匀的手性纳米环:其中均聚物纤维卷积缠绕成均一的环状结构,该过程类似于DNA分子链的缠绕成环;嵌段共聚物在均聚物环表面自组装形成手性螺旋结构,螺旋的手性、螺纹宽度可通过共聚物的手性和分子量有效调控。他们的研究为均匀纳米环的制备提供了新途径,还为环表面手性等纳米结构的构建提供了新策略。

       

      Abstract: Toroids have attracted widespread attention due to their unique structures and properties. Chiral structures are ubiquitous in nature and chiral materials display excellent performance in diverse fields. Polymer self-assembly is an efficient way toward various nanostructures including nanotoroids and chiral nanostructures. However, currently, there is no report regarding chiral toroidal nanostructures by self-assembly of polymers. Recently, the group of Prof. Lin Jiaping and Prof. Cai Chunhua from East China University of Science and Technology has reported that a binary system containing polypeptide homopolymer and its block copolymer can self-assemble into uniform chiral nanotoroids in solution. In such a unique structure, the homopolymers aggregate into fibrils and then convolve into a toroidal template, resembling the toroidal condensation of DNA. While the block copolymers self-assemble on the homopolymer toroids forming helical surface nanopatterns, the chirality and width of the surface helical patterns can be varied by the chirality and molecular weight of the polypeptide block copolymers. Their work not only proposes a novel route toward uniform nanotoroids, but also provides a new strategy constructing chiral nanopatterns on the surface of toroids.

       

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