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dc.contributor.author Kim, Kun Woo -
dc.contributor.author Reddy, Venu -
dc.contributor.author Torati, Sri Ramulu -
dc.contributor.author Hu, Xing Hao -
dc.contributor.author Sandhu, Adarsh -
dc.contributor.author Kim, Cheol Gi -
dc.date.accessioned 2023-06-21T16:10:30Z -
dc.date.available 2023-06-21T16:10:30Z -
dc.date.created 2017-04-10 -
dc.date.issued 2015-02 -
dc.identifier.issn 1473-0197 -
dc.identifier.uri http://hdl.handle.net/20.500.11750/46026 -
dc.description.abstract An on-chip magnetometer was fabricated by integrating a planar Hall magnetoresistive (PHR) sensor with microfluidic channels. The measured in-plane field sensitivities of an integrated PHR sensor with NiFe/Cu/IrMn trilayer structure were extremely high at 8.5 μV Oe-1. The PHR signals were monitored during the oscillation of 35 pL droplets of magnetic nanoparticles, and reversed profiles for the positive and negative z-fields were measured, where magnitudes increased with the applied z-field strength. The measured PHR signals for 35 pL droplets of magnetic nanoparticles versus applied z-fields showed excellent agreement with magnetization curves measured by a vibrating sample magnetometer (VSM) of 3 μL volume, where a PHR voltage of 1 μV change is equivalent to 0.309 emu cc-1 of the volume magnetization with a magnetic moment resolution of ∼10-10 emu. © The Royal Society of Chemistry 2015. -
dc.language English -
dc.publisher Royal Society of Chemistry -
dc.title On-chip magnetometer for characterization of superparamagnetic nanoparticles -
dc.type Article -
dc.identifier.doi 10.1039/c4lc01076k -
dc.identifier.scopusid 2-s2.0-84921627793 -
dc.identifier.bibliographicCitation Lab on a Chip, v.15, no.3, pp.696 - 703 -
dc.description.isOpenAccess TRUE -
dc.citation.endPage 703 -
dc.citation.number 3 -
dc.citation.startPage 696 -
dc.citation.title Lab on a Chip -
dc.citation.volume 15 -
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Department of Physics and Chemistry Lab for NanoBio-Materials & SpinTronics(nBEST) 1. Journal Articles

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