Polybenzoxazole Nanofiber-Reinforced Moisture-Responsive Soft Actuators

Abstract Hydromorphic biological systems, such as morning glory flowers, pinecones, and awns, have inspired researchers to design moisture-sensitive soft actuators capable of directly converting the change of moisture into motion or mechanical work. Here, we report a moisture-sensitive poly(p-phenyl...

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Autores principales:	Meiling Chen, Johannes Frueh, Daolin Wang, Xiankun Lin, Hui Xie, Qiang He
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/18a40e5bc5fe412dacd53fce2e5943d1
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spelling	oai:doaj.org-article:18a40e5bc5fe412dacd53fce2e5943d12021-12-02T15:05:54ZPolybenzoxazole Nanofiber-Reinforced Moisture-Responsive Soft Actuators10.1038/s41598-017-00870-w2045-2322https://doaj.org/article/18a40e5bc5fe412dacd53fce2e5943d12017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00870-whttps://doaj.org/toc/2045-2322Abstract Hydromorphic biological systems, such as morning glory flowers, pinecones, and awns, have inspired researchers to design moisture-sensitive soft actuators capable of directly converting the change of moisture into motion or mechanical work. Here, we report a moisture-sensitive poly(p-phenylene benzobisoxazole) nanofiber (PBONF)-reinforced carbon nanotube/poly(vinyl alcohol) (CNT/PVA) bilayer soft actuator with fine performance on conductivity and mechanical properties. The embedded PBONFs not only assist CNTs to form a continuous, conductive film, but also enhance the mechanical performance of the actuators. The PBONF-reinforced CNT/PVA bilayer actuators can unsymmetrically adsorb and desorb water, resulting in a reversible deformation. More importantly, the actuators show a pronounced increase of conductivity due to the deformation induced by the moisture change, which allows the integration of a moisture-sensitive actuator and a humidity sensor. Upon changing the environmental humidity, the actuators can respond by the deformation for shielding and report the humidity change in a visual manner, which has been demonstrated by a tweezer and a curtain. Such nanofiber-reinforced bilayer actuators with the sensing capability should hold considerable promise for the applications such as soft robots, sensors, intelligent switches, integrated devices, and material storage.Meiling ChenJohannes FruehDaolin WangXiankun LinHui XieQiang HeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Meiling Chen Johannes Frueh Daolin Wang Xiankun Lin Hui Xie Qiang He Polybenzoxazole Nanofiber-Reinforced Moisture-Responsive Soft Actuators
description	Abstract Hydromorphic biological systems, such as morning glory flowers, pinecones, and awns, have inspired researchers to design moisture-sensitive soft actuators capable of directly converting the change of moisture into motion or mechanical work. Here, we report a moisture-sensitive poly(p-phenylene benzobisoxazole) nanofiber (PBONF)-reinforced carbon nanotube/poly(vinyl alcohol) (CNT/PVA) bilayer soft actuator with fine performance on conductivity and mechanical properties. The embedded PBONFs not only assist CNTs to form a continuous, conductive film, but also enhance the mechanical performance of the actuators. The PBONF-reinforced CNT/PVA bilayer actuators can unsymmetrically adsorb and desorb water, resulting in a reversible deformation. More importantly, the actuators show a pronounced increase of conductivity due to the deformation induced by the moisture change, which allows the integration of a moisture-sensitive actuator and a humidity sensor. Upon changing the environmental humidity, the actuators can respond by the deformation for shielding and report the humidity change in a visual manner, which has been demonstrated by a tweezer and a curtain. Such nanofiber-reinforced bilayer actuators with the sensing capability should hold considerable promise for the applications such as soft robots, sensors, intelligent switches, integrated devices, and material storage.
format	article
author	Meiling Chen Johannes Frueh Daolin Wang Xiankun Lin Hui Xie Qiang He
author_facet	Meiling Chen Johannes Frueh Daolin Wang Xiankun Lin Hui Xie Qiang He
author_sort	Meiling Chen
title	Polybenzoxazole Nanofiber-Reinforced Moisture-Responsive Soft Actuators
title_short	Polybenzoxazole Nanofiber-Reinforced Moisture-Responsive Soft Actuators
title_full	Polybenzoxazole Nanofiber-Reinforced Moisture-Responsive Soft Actuators
title_fullStr	Polybenzoxazole Nanofiber-Reinforced Moisture-Responsive Soft Actuators
title_full_unstemmed	Polybenzoxazole Nanofiber-Reinforced Moisture-Responsive Soft Actuators
title_sort	polybenzoxazole nanofiber-reinforced moisture-responsive soft actuators
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/18a40e5bc5fe412dacd53fce2e5943d1
work_keys_str_mv	AT meilingchen polybenzoxazolenanofiberreinforcedmoistureresponsivesoftactuators AT johannesfrueh polybenzoxazolenanofiberreinforcedmoistureresponsivesoftactuators AT daolinwang polybenzoxazolenanofiberreinforcedmoistureresponsivesoftactuators AT xiankunlin polybenzoxazolenanofiberreinforcedmoistureresponsivesoftactuators AT huixie polybenzoxazolenanofiberreinforcedmoistureresponsivesoftactuators AT qianghe polybenzoxazolenanofiberreinforcedmoistureresponsivesoftactuators
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Polybenzoxazole Nanofiber-Reinforced Moisture-Responsive Soft Actuators

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