Publication:
Cholesteric liquid crystal polymeric coatings for colorful artificial muscles and motile humidity sensor skin integrated with magnetic composites

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SCHOOL OF MEDICINE
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Feng, Wei
Pal, Aniket
Wang, Tianlu
Ren, Ziyu
Yan, Yingbo
Lu, Yanqing
Yang, Huai

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Abstract

Structural colorful cholesterics show impressive susceptibility to external stimulation, leading to applications in electro/mechano-chromic devices. However, out-of-plane actuation of structural colorful actuators based on cholesterics and the integration with other stimulation remains underdeveloped. Herein, colorful actuators and motile humidity sensors are developed using humidity-responsive cholesteric liquid crystal networks (CLCNs) and magnetic composites. The developed colorful actuator can exhibit synergistic out-of-plane shape morphing and color change in response to humidity, with CLCNs as colorful artificial muscles. Through the integration with magnetic control, the motile sensor can be navigated to open and confined spaces with the aid of friction to detect local relative humidity. The integration of multi-stimulation actuation of cholesteric magnetic actuators will expand the research frontier of structural colorful actuators and motile sensors for confined spaces.

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Wiley-VCH

Subject

Chemistry, multidisciplinary, Chemistry, physical, Nanoscience and nanotechnology, Materials science, Multidisciplinary, Physics, applied, Physics, condensed matter

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Advanced Functional Materials

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DOI

10.1002/adfm.202300731

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