Magnetic Nanoparticle Sensors

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Magnetic Nanoparticle Sensors

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dc.contributor.author Koh, Isaac
dc.contributor.author Josephson, Lee
dc.date.accessioned 2012-09-10T17:47:09Z
dc.date.issued 2009
dc.identifier.citation Koh, Isaac, and Lee Josephson. 2009. Magnetic nanoparticle sensors. Sensors 9(10): 8130-8145. en_US
dc.identifier.issn 1424-8220 en_US
dc.identifier.uri http://nrs.harvard.edu/urn-3:HUL.InstRepos:9527627
dc.description.abstract Many types of biosensors employ magnetic nanoparticles (diameter = 5–300 nm) or magnetic particles (diameter = 300–5,000 nm) which have been surface functionalized to recognize specific molecular targets. Here we cover three types of biosensors that employ different biosensing principles, magnetic materials, and instrumentation. The first type consists of magnetic relaxation switch assay-sensors, which are based on the effects magnetic particles exert on water proton relaxation rates. The second type consists of magnetic particle relaxation sensors, which determine the relaxation of the magnetic moment within the magnetic particle. The third type is magnetoresistive sensors, which detect the presence of magnetic particles on the surface of electronic devices that are sensitive to changes in magnetic fields on their surface. Recent improvements in the design of magnetic nanoparticles (and magnetic particles), together with improvements in instrumentation, suggest that magnetic material-based biosensors may become widely used in the future. en_US
dc.language.iso en_US en_US
dc.publisher Molecular Diversity Preservation International (MDPI) en_US
dc.relation.isversionof doi:10.3390/s91008130 en_US
dc.relation.hasversion http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3292100/pdf/ en_US
dash.license LAA
dc.subject magnetic particles en_US
dc.subject magnetic nanoparticles en_US
dc.subject target molecules en_US
dc.subject biosensors en_US
dc.subject magnetization en_US
dc.title Magnetic Nanoparticle Sensors en_US
dc.type Journal Article en_US
dc.description.version Version of Record en_US
dc.relation.journal Sensors en_US
dash.depositing.author Josephson, Lee
dc.date.available 2012-09-10T17:47:09Z

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