Application of atomic magnetometry in magnetic particledetection [electronic resource]
Atomic Magnetometer Magnetic Nanoparticles Biomarkers.
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| Online Access: |
Online Access (via OSTI) |
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| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Department of Energy. ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2006.
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| Subjects: |
| Summary: | Atomic Magnetometer Magnetic Nanoparticles Biomarkers. |
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| Abstract: | We demonstrate the detection of magnetic particles carriedby water in a continuous flow using an atomic magnetic gradiometer.Studies on three types of magnetic particles are presented: a singlecobalt particle (diameter ̃;150 mum, multi-domain), a suspension ofsuperparamagnetic magnetite particles (diameter ̃;1 mum), andferromagnetic cobalt nanoparticles (diameter ̃;10 nm, 120 kA/mmagnetization). Estimated detection limits are 20 mum diameter for asingle cobalt particle at a water flow rate 30 ml/min, 5x103 magnetiteparticles at 160 ml/min, and 50 pl for the specific ferromagnetic fluidat 130 ml/min. Possible applications of our method arediscussed. |
| Item Description: | Published through SciTech Connect. 09/17/2006. "lbnl--61614" ": KC0203010" Applied Physics Letters 89 22 ISSN 0003-6951; APPLAB FT. Xu, Shoujun; Donaldson, Marcus H.; Pines, Alexander; Rochester,Simon M.; Budker, Dmitry; Yashchuk, Valeriy V. Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US) |