4D sequential actuation: combining ionoprinting and redox chemistry in hydrogels

Baker, Anna B, Wass, Duncan F ORCID: https://orcid.org/0000-0002-0356-7067 and Trask, Richard S 2016. 4D sequential actuation: combining ionoprinting and redox chemistry in hydrogels. Smart Materials and Structures 25 (10) , 10LT02. 10.1088/0964-1726/25/10/10LT02

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Abstract

The programmable sequential actuation of two-dimensional hydrogel membranes into three-dimensional folded architectures has been achieved by combining ionoprinting and redox chemistry; this methodology permits the programmed evolution of complex architectures triggered through localized out-of-plane deformations. In our study we describe a soft actuator which utilizes ionoprinting of iron and vanadium, with the selective reduction of iron through a mild reducing agent, to achieve chemically controlled sequential folding. Through the optimization of solvent polarity and ionoprinting variables (voltage, duration and anode composition), we have shown how the actuation pathways, rate-of-movement and magnitude of angular rotation can be controlled for the design of a 4D sequential actuator.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry Cardiff Catalysis Institute (CCI)
Publisher:	IOP Publishing: Hybrid Open Access
ISSN:	0964-1726
Date of First Compliant Deposit:	17 October 2018
Date of Acceptance:	16 September 2016
Last Modified:	05 May 2023 22:40
URI:	https://orca.cardiff.ac.uk/id/eprint/115952

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