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Measurements of Bro...
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Østerberg, F. W.Dept of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Kongens Lyngby, Danmark
(author)
Measurements of Brownian relaxation of magnetic nanobeads using planar Hall effect bridge sensors
- Article/chapterEnglish2012
Publisher, publication year, extent ...
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Elsevier BV,2012
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:uu-181808
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-181808URI
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https://doi.org/10.1016/j.bios.2012.07.002DOI
Supplementary language notes
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Language:English
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Summary in:English
Part of subdatabase
Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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We compare measurements of the Brownian relaxation response of magnetic nanobeads in suspension using planar Hall effect sensors of cross geometry and a newly proposed bridge geometry. We find that the bridge sensor yields six times as large signals as the cross sensor, which results in a more accurate determination of the hydrodynamic size of the magnetic nanobeads. Finally, the bridge sensor has successfully been used to measure the change in dynamic magnetic response when rolling circle amplified DNA molecules are bound to the magnetic nanobeads. The change is validated by measurements performed in a commercial AC susceptometer. The presented bridge sensor is, thus, a promising component in future lab-on-a-chip biosensors for detection of clinically relevant analytes, including bacterial genomic DNA and proteins.
Subject headings and genre
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TEKNIK OCH TEKNOLOGIER Nanoteknik hsv//swe
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ENGINEERING AND TECHNOLOGY Nano-technology hsv//eng
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TECHNOLOGY
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TEKNIKVETENSKAP
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Engineering Science with specialization in Solid State Physics
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Teknisk fysik med inriktning mot fasta tillståndets fysik
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Engineering Science with specialization in Nanotechnology and Functional Materials
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Teknisk fysik med inriktning mot nanoteknologi och funktionella material
Added entries (persons, corporate bodies, meetings, titles ...)
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Rizzi, G.Dept of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Kongens Lyngby, Danmark
(author)
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Zardán Gómez de la Torre, TeresaUppsala universitet,Nanoteknologi och funktionella material,Nanoteknologi och funktionella material, Nanotechnology and Functional Materials(Swepub:uu)terza442
(author)
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Strömberg, MattiasUppsala universitet,Nanoteknologi och funktionella material,Nanoteknologi och funktionella material, Nanotechnology and Functional Materials(Swepub:uu)makar103
(author)
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Strømme, MariaUppsala universitet,Nanoteknologi och funktionella material(Swepub:uu)mst26208
(author)
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Svedlindh, PeterUppsala universitet,Fasta tillståndets fysik(Swepub:uu)petesved
(author)
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Hansen, M. F.Dept of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Kongens Lyngby, Danmark
(author)
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Dept of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Kongens Lyngby, DanmarkNanoteknologi och funktionella material
(creator_code:org_t)
Related titles
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In:Biosensors & bioelectronics: Elsevier BV40:S1, s. 147-1520956-56631873-4235
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