Light-Triggered Soft Artificial Muscles: Molecular-Level Amplification of Actuation Control Signals

Abstract The principle of control signal amplification is found in all actuation systems, from engineered devices through to the operation of biological muscles. However, current engineering approaches require the use of hard and bulky external switches or valves, incompatible with both the properti...

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Autores principales:	Michael P. M. Dicker, Anna B. Baker, Robert J. Iredale, Sina Naficy, Ian P. Bond, Charl F. J. Faul, Jonathan M. Rossiter, Geoffrey M. Spinks, Paul M. Weaver
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7303c3837cf947d7ba4800bfcf0ab7e9
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spelling	oai:doaj.org-article:7303c3837cf947d7ba4800bfcf0ab7e92021-12-02T11:53:04ZLight-Triggered Soft Artificial Muscles: Molecular-Level Amplification of Actuation Control Signals10.1038/s41598-017-08777-22045-2322https://doaj.org/article/7303c3837cf947d7ba4800bfcf0ab7e92017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08777-2https://doaj.org/toc/2045-2322Abstract The principle of control signal amplification is found in all actuation systems, from engineered devices through to the operation of biological muscles. However, current engineering approaches require the use of hard and bulky external switches or valves, incompatible with both the properties of emerging soft artificial muscle technology and those of the bioinspired robotic systems they enable. To address this deficiency a biomimetic molecular-level approach is developed that employs light, with its excellent spatial and temporal control properties, to actuate soft, pH-responsive hydrogel artificial muscles. Although this actuation is triggered by light, it is largely powered by the resulting excitation and runaway chemical reaction of a light-sensitive acid autocatalytic solution in which the actuator is immersed. This process produces actuation strains of up to 45% and a three-fold chemical amplification of the controlling light-trigger, realising a new strategy for the creation of highly functional soft actuating systems.Michael P. M. DickerAnna B. BakerRobert J. IredaleSina NaficyIan P. BondCharl F. J. FaulJonathan M. RossiterGeoffrey M. SpinksPaul M. WeaverNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Michael P. M. Dicker Anna B. Baker Robert J. Iredale Sina Naficy Ian P. Bond Charl F. J. Faul Jonathan M. Rossiter Geoffrey M. Spinks Paul M. Weaver Light-Triggered Soft Artificial Muscles: Molecular-Level Amplification of Actuation Control Signals
description	Abstract The principle of control signal amplification is found in all actuation systems, from engineered devices through to the operation of biological muscles. However, current engineering approaches require the use of hard and bulky external switches or valves, incompatible with both the properties of emerging soft artificial muscle technology and those of the bioinspired robotic systems they enable. To address this deficiency a biomimetic molecular-level approach is developed that employs light, with its excellent spatial and temporal control properties, to actuate soft, pH-responsive hydrogel artificial muscles. Although this actuation is triggered by light, it is largely powered by the resulting excitation and runaway chemical reaction of a light-sensitive acid autocatalytic solution in which the actuator is immersed. This process produces actuation strains of up to 45% and a three-fold chemical amplification of the controlling light-trigger, realising a new strategy for the creation of highly functional soft actuating systems.
format	article
author	Michael P. M. Dicker Anna B. Baker Robert J. Iredale Sina Naficy Ian P. Bond Charl F. J. Faul Jonathan M. Rossiter Geoffrey M. Spinks Paul M. Weaver
author_facet	Michael P. M. Dicker Anna B. Baker Robert J. Iredale Sina Naficy Ian P. Bond Charl F. J. Faul Jonathan M. Rossiter Geoffrey M. Spinks Paul M. Weaver
author_sort	Michael P. M. Dicker
title	Light-Triggered Soft Artificial Muscles: Molecular-Level Amplification of Actuation Control Signals
title_short	Light-Triggered Soft Artificial Muscles: Molecular-Level Amplification of Actuation Control Signals
title_full	Light-Triggered Soft Artificial Muscles: Molecular-Level Amplification of Actuation Control Signals
title_fullStr	Light-Triggered Soft Artificial Muscles: Molecular-Level Amplification of Actuation Control Signals
title_full_unstemmed	Light-Triggered Soft Artificial Muscles: Molecular-Level Amplification of Actuation Control Signals
title_sort	light-triggered soft artificial muscles: molecular-level amplification of actuation control signals
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/7303c3837cf947d7ba4800bfcf0ab7e9
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Light-Triggered Soft Artificial Muscles: Molecular-Level Amplification of Actuation Control Signals

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