Dynamic and programmable morphology and size evolution via a living hierarchical self-assembly strategy

Xing Wang, Peiyuan Gao, Yanyu Yang, Hongxia Guo and Decheng Wu ()
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Xing Wang: Chinese Academy of Sciences
Peiyuan Gao: Pacific Northwest National Laboratory
Yanyu Yang: Chinese Academy of Sciences
Hongxia Guo: Chinese Academy of Sciences
Decheng Wu: Chinese Academy of Sciences

Nature Communications, 2018, vol. 9, issue 1, 1-15

Abstract: Abstract Recent advances in the preparation of shape-shifting and size-growing nanostructures are hot topics in development of nanoscience, because many intelligent functions are always relied on their shape and dimension. Here we report a tunable manipulation of sequential self-assembled transformation in situ via a hierarchical assembly strategy based on a living thiol–disulfide exchange reaction. By tailoring the external stimuli, the reactive points can be generated at the ends of initially unimolecular micelles, which subsequently drive the pre-assemblies to periodically proceed into the hierarchically micellar connection, axial growth, bending, and cyclization processes from nanoscopic assemblies to macroscopic particles. Of particular interest would be systems that acquired the shape control and size adjustment of self-assemblies after termination or reactivation of disulfide reshuffling reaction by regulating external stimuli whenever needed. Such a hierarchical strategy for self-assembled evolution is universally applicable not only for other disulfide-linked dendritic polymers but also for exploitation of biological applications.

Date: 2018
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DOI: 10.1038/s41467-018-05142-3

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