Co-assembly of a multicomponent network of nanofiber-wrapped nanotubes
Co-assembly of a multicomponent network of nanofiber-wrapped nanotubes
复制标题
纳米纤维包裹的纳米管多组分网络的共组装
DOI：
10.1039/d1nr08508e
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发表时间：
2022
期刊：
影响因子：
6.7
通讯作者：
Parquette, Jon R.
中科院分区：
文献类型：
--
作者：
Mason, McKensie L.;Lin, Tao;Linville, Jenae J.;Parquette, Jon R.
创建由离散的、自分类的域组成的有组织的多组分纳米结构的策略对于开发模仿生物系统中发现的复杂性和多功能性的材料是重要的。由于组分之间需要分子自识别和超分子吸引力的平衡，这些结构可能具有挑战性。在此，我们报告了一种策略，通过分层组装过程，即两个单体构件在分子水平上进行自分选组装，然后通过超分子缔合形成纳米纤维包裹的纳米管，来构建双组分纳米结构。这两种分子自分选成相应的纳米纤维和纳米管组装体，然而在纳米管模板存在下纳米纤维的组装体允许通过静电相互作用直接整合成分级多层结构。使用透射电子显微镜（TEM），原子力显微镜（AFM）和Förster共振能量转移（FRET）的组件之间的纤维包裹的纳米管共组装的特征在于。多组分纳米结构由离散的、空间有序的结构域组成，具有可控的高水平相互作用，这些结构的共组装策略对于开发新型的、功能性的纳米材料至关重要。
Strategies to create organized multicomponent nanostructures composed of discrete, self-sorted domains are important for developing materials that mimic the complexity and multifunctionality found in biological systems. These structures can be challenging to achieve due to the required balance of molecular self-recognition and supramolecular attraction needed between the components. Herein, we report a strategy to construct a two-component nanostructure via a hierarchical assembly process whereby two monomeric building blocks undergo self-sorting assembly at the molecular level followed by a supramolecular association to form a nanofiber-wrapped nanotube. The two molecules self-sorted into respective nanofiber and nanotube assemblies, yet assembly of the nanofibers in the presence of the nanotube template allowed for directed integration into a hierarchical multilayer structure via electrostatic interactions. The fiber-wrapped nanotube co-assembly was characterized using transmission electron microscopy (TEM), atomic force microscopy (AFM) and Förster resonance energy transfer (FRET) between the components. Strategies to co-assemble multicomponent nanostructures composed of discrete, spatially sorted domains with controllable higher level interactions will be critical for the development of novel, functionally competent nanomaterials.