A giant magnetoresistance ring-sensor based microsystem for magnetic bead manipulation and detection

Handle URI:
http://hdl.handle.net/10754/552802
Title:
A giant magnetoresistance ring-sensor based microsystem for magnetic bead manipulation and detection
Authors:
Gooneratne, Chinthaka P.; Giouroudi, Ioanna; Liang, Cai ( 0000-0002-5844-3432 ) ; Kosel, Jürgen ( 0000-0002-8998-8275 )
Abstract:
In this paper a novel spin valvegiant magnetoresistance(GMR) ring-sensor integrated with a microstructure is proposed for concentrating, trapping, and detecting superparamagnetic beads (SPBs). Taking advantage of the fact that SPBs can be manipulated by an external magnetic field, a unique arrangement of conducting microrings is utilized to manipulate the SPBs toward the GMR sensing area in order to increase the reliability of detection. The microrings are arranged and activated in such a manner so as to enable the detection of minute concentrations of SPBs in a sample. Precise manipulation is achieved by applying current sequentially to the microrings. The fabricated ring-shaped GMR element is located underneath the innermost ring and has a magnetoresistance of approximately 5.9%. By the performed experiments it was shown that SPBs could be successfully manipulated toward the GMR sensing zone.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
A giant magnetoresistance ring-sensor based microsystem for magnetic bead manipulation and detection 2011, 109 (7):07E517 Journal of Applied Physics
Journal:
Journal of Applied Physics
Issue Date:
28-Mar-2011
DOI:
10.1063/1.3536822
Type:
Article
ISSN:
00218979
Additional Links:
http://scitation.aip.org/content/aip/journal/jap/109/7/10.1063/1.3536822
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorGooneratne, Chinthaka P.en
dc.contributor.authorGiouroudi, Ioannaen
dc.contributor.authorLiang, Caien
dc.contributor.authorKosel, Jürgenen
dc.date.accessioned2015-05-14T07:15:04Zen
dc.date.available2015-05-14T07:15:04Zen
dc.date.issued2011-03-28en
dc.identifier.citationA giant magnetoresistance ring-sensor based microsystem for magnetic bead manipulation and detection 2011, 109 (7):07E517 Journal of Applied Physicsen
dc.identifier.issn00218979en
dc.identifier.doi10.1063/1.3536822en
dc.identifier.urihttp://hdl.handle.net/10754/552802en
dc.description.abstractIn this paper a novel spin valvegiant magnetoresistance(GMR) ring-sensor integrated with a microstructure is proposed for concentrating, trapping, and detecting superparamagnetic beads (SPBs). Taking advantage of the fact that SPBs can be manipulated by an external magnetic field, a unique arrangement of conducting microrings is utilized to manipulate the SPBs toward the GMR sensing area in order to increase the reliability of detection. The microrings are arranged and activated in such a manner so as to enable the detection of minute concentrations of SPBs in a sample. Precise manipulation is achieved by applying current sequentially to the microrings. The fabricated ring-shaped GMR element is located underneath the innermost ring and has a magnetoresistance of approximately 5.9%. By the performed experiments it was shown that SPBs could be successfully manipulated toward the GMR sensing zone.en
dc.relation.urlhttp://scitation.aip.org/content/aip/journal/jap/109/7/10.1063/1.3536822en
dc.rightsArchived with thanks to Journal of Applied Physicsen
dc.titleA giant magnetoresistance ring-sensor based microsystem for magnetic bead manipulation and detectionen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalJournal of Applied Physicsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionInstitute of Sensor and Actuator Systems, Vienna University of Technology, 1040 Vienna, Austriaen
kaust.authorGooneratne, Chinthaka Pasanen
kaust.authorLiang, Caien
kaust.authorKosel, Jürgenen
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