Molecular-channel driven actuator with considerations for multiple configurations and color switching

Jiuke Mu, Gang Wang, Hongping Yan, Huayu Li, Xuemin Wang, Enlai Gao, Chengyi Hou, Anh Thi Cam Pham, Lianjun Wu, Qinghong Zhang (), Yaogang Li, Zhiping Xu, Yang Guo, Elsa Reichmanis (), Hongzhi Wang () and Meifang Zhu
Additional contact information
Jiuke Mu: Donghua University
Gang Wang: Georgia Institute of Technology
Hongping Yan: SLAC National Accelerator Laboratory
Huayu Li: Georgia Institute of Technology
Xuemin Wang: University of Texas at Dallas
Enlai Gao: Tsinghua University
Chengyi Hou: Donghua University
Anh Thi Cam Pham: University of Texas at Dallas
Lianjun Wu: University of Texas at Dallas
Qinghong Zhang: Donghua University
Yaogang Li: Donghua University
Zhiping Xu: Tsinghua University
Yang Guo: Donghua University
Elsa Reichmanis: Georgia Institute of Technology
Hongzhi Wang: Donghua University
Meifang Zhu: Donghua University

Nature Communications, 2018, vol. 9, issue 1, 1-10

Abstract: Abstract The ability to achieve simultaneous intrinsic deformation with fast response in commercially available materials that can safely contact skin continues to be an unresolved challenge for artificial actuating materials. Rather than using a microporous structure, here we show an ambient-driven actuator that takes advantage of inherent nanoscale molecular channels within a commercial perfluorosulfonic acid ionomer (PFSA) film, fabricated by simple solution processing to realize a rapid response, self-adaptive, and exceptionally stable actuation. Selective patterning of PFSA films on an inert soft substrate (polyethylene terephthalate film) facilitates the formation of a range of different geometries, including a 2D (two-dimensional) roll or 3D (three-dimensional) helical structure in response to vapor stimuli. Chemical modification of the surface allowed the development of a kirigami-inspired single-layer actuator for personal humidity and heat management through macroscale geometric design features, to afford a bilayer stimuli-responsive actuator with multicolor switching capability.

Date: 2018
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DOI: 10.1038/s41467-018-03032-2

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