Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/111115
Title: Composite Polymer Hydrogels with high and Reversible Elongation under Magnetic Stimuli
Authors: Vazquez-Perez, F. J.
Gila-Vilchez, C.
Duran, J. D. G.
Zubarev, A.
Alvarez de Cienfuegos, L.
Rodriguez-Arco, L.
Lopez-Lopez, M. T.
Issue Date: 2021
Publisher: Elsevier Ltd
Elsevier BV
Citation: Composite Polymer Hydrogels with high and Reversible Elongation under Magnetic Stimuli / F. J. Vazquez-Perez, C. Gila-Vilchez, J. D. G. Duran et al. // Polymer. — 2021. — Vol. 230. — 124093.
Abstract: The field of soft actuators is dominated by elastomers that experience mechanical deformations in response to external stimuli. In this context, magnetic stimuli attract considerable interest because of their easy application, tunability, fast response, remote actuation, and safe penetration in biological environments. Since very recently, research interests in the field are being redirected towards hydrogels, which could virtually replace elastomers, overcoming their limitations and expanding the field of application of soft actuators. The mechanical actuation of hydrogels is a nascent field full of challenges, such as achieving reliable and significant responsiveness. Here we demonstrate that the combination of a physical polymer hydrogel with a dispersed phase consisting of clusters of magnetic particles, results in magnetic hydrogel composites that exhibit high and reversible elongation in response to magnetic stimuli. Our analyses show that this response is strongly dependent on the matrix elasticity, the concentration of magnetic particles, and the particle distribution within the network of polymer nanofibres. Our strategy for the maximization of the response of magnetic hydrogels should be a catalyst for the development of novel applications of composite hydrogels, such as a valve remotely actuated by a magnetic field that we also present here as a proof-of-concept. © 2021 The Author(s).
Keywords: ALGINATE HYDROGEL
COMPOSITE HYDROGEL
MAGNETIC PARTICLES
MECHANICAL BEHAVIOUR
MICROSTRUCTURAL PROPERTIES
SOFT ACTUATOR
ALGINATE
ELASTOMERS
MAGNETIC ACTUATORS
MAGNETISM
MECHANICAL ACTUATORS
ALGINATE HYDROGELS
COMPOSITE HYDROGELS
COMPOSITE POLYMER
MAGNETIC HYDROGELS
MAGNETIC STIMULI
POLYMER HYDROGELS
URI: http://hdl.handle.net/10995/111115
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85112487448
PURE ID: 22984328
ISSN: 0032-3861
metadata.dc.description.sponsorship: Dr. Mariusz Barczak is acknowledged for help with SEM imaging of iron particles. Ms. Laura Quesada de la Torre is acknowledged for help with design of graphical abstract. This study was supported by project FIS2017-85954-R (Ministerio de Economía, Industria y Competitividad, MINECO, and Agencia Estatal de Investigación, AEI, Spain, cofunded by Fondo Europeo de Desarrollo Regional, FEDER, European Union ). CGV acknowledges financial support by Ministerio de Ciencia, Innovación y Universidades and University of Granada, Spain, for her FPU17/00491 grant. AZ thanks the Russian Science Foundation, project 20-12-00031, for the financial support. LRA thanks the Spanish State Research Agency (Spanish Ministry of Science and Innovation ) through Juan de la Cierva Incorporacion Fellowship ( IJC2018-037951-I ). Funding for open access charge: Universidad de Granada / CBUA.
RSCF project card: 20-12-00031
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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