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dc.contributor.authorAlfadhel, Ahmed
dc.contributor.authorKhan, Mohammed Zahed Mustafa
dc.contributor.authorCardoso, Susana
dc.contributor.authorLeitao, Diana
dc.contributor.authorKosel, Jürgen
dc.date.accessioned2016-05-23T08:00:41Z
dc.date.available2016-05-23T08:00:41Z
dc.date.issued2016-05-07
dc.identifier.citationA Magnetoresistive Tactile Sensor for Harsh Environment Applications 2016, 16 (5):650 Sensors
dc.identifier.issn1424-8220
dc.identifier.pmid27164113
dc.identifier.doi10.3390/s16050650
dc.identifier.urihttp://hdl.handle.net/10754/610553
dc.description.abstractA magnetoresistive tactile sensor is reported, which is capable of working in high temperatures up to 140 °C. Hair-like bioinspired structures, known as cilia, made out of permanent magnetic nanocomposite material on top of spin-valve giant magnetoresistive (GMR) sensors are used for tactile sensing at high temperatures. The magnetic nanocomposite, consisting of iron nanowires incorporated into the polymer polydimethylsiloxane (PDMS), is very flexible, biocompatible, has high remanence, and is also resilient to antagonistic sensing ambient. When the cilia come in contact with a surface, they deflect in compliance with the surface topology. This yields a change of the GMR sensor signal, enabling the detection of extremely fine features. The spin-valve is covered with a passivation layer, which enables adequate performance in spite of harsh environmental conditions, as demonstrated in this paper for high temperature.
dc.description.sponsorshipResearch reported in this publication is supported by the King Abdullah University of Science and Technology (KAUST). INESC-MN thanks FCT under EXCL/CTM-NAN/0441/2012 Project and Pest-OE/CTM/LA0024/2011. D. C. Leitao acknowledges FCT Grant SFRH/BPD/72359/2010.
dc.language.isoen
dc.publisherMDPI AG
dc.relation.urlhttp://www.mdpi.com/1424-8220/16/5/650
dc.rightsThis is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. http://creativecommons.org/licenses/by/4.0/
dc.subjectmagnetic nanocomposite
dc.subjectgiant magnetoresistance
dc.subjecthigh temperature
dc.subjectharsh environment
dc.subjectnanowires
dc.subjectcilia
dc.subjecttactile sensor
dc.subjectspin-valve
dc.titleA Magnetoresistive Tactile Sensor for Harsh Environment Applications
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.identifier.journalSensors
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionINESC-Microsystems and Nanotechnologies (INESC-MN), Rua Alves Redol, 9, Lisbon 1000-029, Portugal
dc.contributor.institutionInstituto Superior Técnico IST, Physics Department, Universidade de Lisboa, Lisbon 1049-001, Portugal
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personAlfadhel, Ahmed
kaust.personKhan, Mohammed Asadullah
kaust.personKosel, Jürgen
refterms.dateFOA2018-06-13T13:11:39Z


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