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一锅法构建包含DNA和半人工糖肽自分类超分子结构的多组分超分子材料。

One-Pot Construction of Multicomponent Supramolecular Materials Comprising Self-Sorted Supramolecular Architectures of DNA and Semi-Artificial Glycopeptides.

作者信息

Higashi Sayuri L, Hirosawa Koichiro M, Suzuki Kenichi G N, Matsuura Kazunori, Ikeda Masato

机构信息

United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.

Center for Highly Advanced Integration of Nano and Life Sciences (G-CHAIN), Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.

出版信息

ACS Appl Bio Mater. 2020 Dec 21;3(12):9082-9092. doi: 10.1021/acsabm.0c01316. Epub 2020 Dec 8.

Abstract

Multicomponent supramolecular materials, which comprise plural supramolecular architectures that exhibit distinct self-sorting behaviors, are receiving increasing attention because they can be implemented with sophisticated functions and hierarchical structures, , living cells. Nevertheless, the application of supramolecular system design to engineer self-sorting behaviors among plural supramolecular architectures remains challenging. Herein, we show that the thermal annealing-induced one-pot assembly of multiple single-stranded DNAs and a single semi-artificial glycopeptide (GP) results in the emergent formation of self-sorted supramolecular nanostructures (ssSNs) consisting of a GP supramolecular nanoribbon surrounded by DNA tile-nanotubes. Fluorescence imaging revealed the formation of each supramolecular nanostructure through orthogonal molecular assembling processes. Moreover, the fluorescence recovery after photobleaching (FRAP) disclosed the presence of reversible attractive interactions between the DNA tile, prior to the formation of the tile-nanotube, and the GP supramolecular nanostructures at the mesoscale level, which are crucial for the formation of the ssSNs. Further, we revealed that the ssSNs retain their biostimuli responsiveness so that each supramolecular nanostructure can be selectively degraded. Finally, we successfully constructed a complex soft nanomaterial composed of ternary supramolecular architectures (a GP supramolecular nanostructure, DNA tile-nanotube, and DNA microsphere) based on the present as well as previous findings.

摘要

多组分超分子材料由多种表现出不同自分类行为的超分子结构组成,因其可实现复杂功能和层次结构,在活细胞等领域正受到越来越多的关注。然而,将超分子系统设计应用于多种超分子结构之间的自分类行为工程仍具有挑战性。在此,我们表明,热退火诱导的多个单链DNA和单个半人工糖肽(GP)的一锅组装导致了自分类超分子纳米结构(ssSNs)的出现,该结构由被DNA瓦片纳米管包围的GP超分子纳米带组成。荧光成像通过正交分子组装过程揭示了每种超分子纳米结构的形成。此外,光漂白后的荧光恢复(FRAP)揭示了在瓦片纳米管形成之前,DNA瓦片与中尺度的GP超分子纳米结构之间存在可逆的吸引相互作用,这对ssSNs的形成至关重要。此外,我们发现ssSNs保留了它们的生物刺激响应性,因此每种超分子纳米结构都可以被选择性降解。最后,基于目前以及先前的研究结果,我们成功构建了一种由三元超分子结构(GP超分子纳米结构、DNA瓦片纳米管和DNA微球)组成的复杂软纳米材料。

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