Highly Magneto-Responsive Elastomeric Films Created by a Two-Step Fabrication Process

Handle URI:
http://hdl.handle.net/10754/576137
Title:
Highly Magneto-Responsive Elastomeric Films Created by a Two-Step Fabrication Process
Authors:
Marchi, Sophie; Casu, Alberto; Bertora, Franco; Athanassiou, Athanassia; Fragouli, Despina
Abstract:
An innovative method for the preparation of elastomeric magnetic films with increased magneto-responsivity is presented. Polymeric films containing aligned magnetic microchains throughout their thickness are formed upon the magnetophoretic transport and assembly of microparticles during polymer curing. The obtained films are subsequently magnetized at a high magnetic field of 3 T directed parallel to the orientation of the microchains. We prove that the combination of both alignment of the particles along a favorable direction during curing and the subsequent magnetization of the solid films induces an impressive increase of the films’ deflection. Specifically, the displacements reach few millimeters, up to 85 times higher than those of the nontreated films with the same particle concentration. Such a process can improve the performance of the magnetic films without increasing the amount of magnetic fillers and, thus, without compromising the mechanical properties of the resulting composites. The proposed method can be used for the fabrication of magnetic films suitable as components in systems in which large displacements at relatively low magnetic fields are required, such as sensors and drug delivery or microfluidic systems, especially where remote control of valves is requested to achieve appropriate flow and mixing of liquids.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division
Citation:
Highly Magneto-Responsive Elastomeric Films Created by a Two-Step Fabrication Process 2015:150824074924006 ACS Applied Materials & Interfaces
Publisher:
American Chemical Society (ACS)
Journal:
ACS Applied Materials & Interfaces
Issue Date:
24-Aug-2015
DOI:
10.1021/acsami.5b04711
Type:
Article
ISSN:
1944-8244; 1944-8252
Additional Links:
http://pubs.acs.org/doi/10.1021/acsami.5b04711
Appears in Collections:
Articles; Biological and Environmental Sciences and Engineering (BESE) Division; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorMarchi, Sophieen
dc.contributor.authorCasu, Albertoen
dc.contributor.authorBertora, Francoen
dc.contributor.authorAthanassiou, Athanassiaen
dc.contributor.authorFragouli, Despinaen
dc.date.accessioned2015-08-31T12:32:43Zen
dc.date.available2015-08-31T12:32:43Zen
dc.date.issued2015-08-24en
dc.identifier.citationHighly Magneto-Responsive Elastomeric Films Created by a Two-Step Fabrication Process 2015:150824074924006 ACS Applied Materials & Interfacesen
dc.identifier.issn1944-8244en
dc.identifier.issn1944-8252en
dc.identifier.doi10.1021/acsami.5b04711en
dc.identifier.urihttp://hdl.handle.net/10754/576137en
dc.description.abstractAn innovative method for the preparation of elastomeric magnetic films with increased magneto-responsivity is presented. Polymeric films containing aligned magnetic microchains throughout their thickness are formed upon the magnetophoretic transport and assembly of microparticles during polymer curing. The obtained films are subsequently magnetized at a high magnetic field of 3 T directed parallel to the orientation of the microchains. We prove that the combination of both alignment of the particles along a favorable direction during curing and the subsequent magnetization of the solid films induces an impressive increase of the films’ deflection. Specifically, the displacements reach few millimeters, up to 85 times higher than those of the nontreated films with the same particle concentration. Such a process can improve the performance of the magnetic films without increasing the amount of magnetic fillers and, thus, without compromising the mechanical properties of the resulting composites. The proposed method can be used for the fabrication of magnetic films suitable as components in systems in which large displacements at relatively low magnetic fields are required, such as sensors and drug delivery or microfluidic systems, especially where remote control of valves is requested to achieve appropriate flow and mixing of liquids.en
dc.language.isoenen
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.urlhttp://pubs.acs.org/doi/10.1021/acsami.5b04711en
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/10.1021/acsami.5b04711.en
dc.subjectPDMSen
dc.subjectmicroparticlesen
dc.subjectmagnetic assemblyen
dc.subjectferromagnetismen
dc.subjectmagnetic actuationen
dc.titleHighly Magneto-Responsive Elastomeric Films Created by a Two-Step Fabrication Processen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalACS Applied Materials & Interfacesen
dc.eprint.versionPost-printen
dc.contributor.institutionSmart Materials, Nanophysics, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italyen
dc.contributor.institutionNanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italyen
dc.contributor.institutionRobotics Brain and Cognitive Science, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italyen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorCasu, Albertoen
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