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dc.contributor.authorMarchi, Sophie
dc.contributor.authorCasu, Alberto
dc.contributor.authorBertora, Franco
dc.contributor.authorAthanassiou, Athanassia
dc.contributor.authorFragouli, Despina
dc.date.accessioned2015-08-31T12:32:43Z
dc.date.available2015-08-31T12:32:43Z
dc.date.issued2015-08-24
dc.identifier.citationHighly Magneto-Responsive Elastomeric Films Created by a Two-Step Fabrication Process 2015:150824074924006 ACS Applied Materials & Interfaces
dc.identifier.issn1944-8244
dc.identifier.issn1944-8252
dc.identifier.pmid26299444
dc.identifier.doi10.1021/acsami.5b04711
dc.identifier.urihttp://hdl.handle.net/10754/576137
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.
dc.language.isoen
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttp://pubs.acs.org/doi/10.1021/acsami.5b04711
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.
dc.subjectPDMS
dc.subjectmicroparticles
dc.subjectmagnetic assembly
dc.subjectferromagnetism
dc.subjectmagnetic actuation
dc.titleHighly Magneto-Responsive Elastomeric Films Created by a Two-Step Fabrication Process
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.identifier.journalACS Applied Materials & Interfaces
dc.eprint.versionPost-print
dc.contributor.institutionSmart Materials, Nanophysics, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
dc.contributor.institutionNanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
dc.contributor.institutionRobotics Brain and Cognitive Science, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personCasu, Alberto
refterms.dateFOA2016-08-24T00:00:00Z
dc.date.published-online2015-08-24
dc.date.published-print2015-09-02


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