Freestanding 3D Mesostructures, Functional Devices, and Shape-Programmable Systems Based on Mechanically Induced Assembly with Shape Memory Polymers

Bibliographische Detailangaben
Veröffentlicht in:	Advanced materials (Deerfield Beach, Fla.). - 1998. - 31(2019), 2 vom: 15. Jan., Seite e1805615
1. Verfasser:	Wang, Xueju (VerfasserIn)
Weitere Verfasser:	Guo, Xiaogang, Ye, Jilong, Zheng, Ning, Kohli, Punit, Choi, Dongwhi, Zhang, Yi, Xie, Zhaoqian, Zhang, Qihui, Luan, Haiwen, Nan, Kewang, Kim, Bong Hoon, Xu, Yameng, Shan, Xiwei, Bai, Wubin, Sun, Rujie, Wang, Zizheng, Jang, Hokyung, Zhang, Fan, Ma, Yinji, Xu, Zheng, Feng, Xue, Xie, Tao, Huang, Yonggang, Zhang, Yihui, Rogers, John A
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2019
Zugriff auf das übergeordnete Werk:	Advanced materials (Deerfield Beach, Fla.)
Schlagworte:	Journal Article 3D microstructures 3D printing 4D printing guided assembly shape memory polymers

Beschreibung
Zusammenfassung:	© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Capabilities for controlled formation of sophisticated 3D micro/nanostructures in advanced materials have foundational implications across a broad range of fields. Recently developed methods use stress release in prestrained elastomeric substrates as a driving force for assembling 3D structures and functional microdevices from 2D precursors. A limitation of this approach is that releasing these structures from their substrate returns them to their original 2D layouts due to the elastic recovery of the constituent materials. Here, a concept in which shape memory polymers serve as a means to achieve freestanding 3D architectures from the same basic approach is introduced, with demonstrated ability to realize lateral dimensions, characteristic feature sizes, and thicknesses as small as ≈500, 10, and 5 µm simultaneously, and the potential to scale to much larger or smaller dimensions. Wireless electronic devices illustrate the capacity to integrate other materials and functional components into these 3D frameworks. Quantitative mechanics modeling and experimental measurements illustrate not only shape fixation but also capabilities that allow for structure recovery and shape programmability, as a form of 4D structural control. These ideas provide opportunities in fields ranging from micro-electromechanical systems and microrobotics, to smart intravascular stents, tissue scaffolds, and many others
Beschreibung:	Date Completed 11.01.2019 Date Revised 01.10.2020 published: Print-Electronic Citation Status PubMed-not-MEDLINE
ISSN:	1521-4095
DOI:	10.1002/adma.201805615