High-gradient permanent magnet apparatus and its use in particle collection
Abstract
A high-gradient permanent magnet apparatus for capturing paramagnetic particles, the apparatus comprising: (i) at least two permanent magnets positioned with like poles facing each other; (ii) a ferromagnetic spacer separating the like poles; and (iii) a magnetizable porous filling material in close proximity to the at least two permanent magnets. Also described is a method for capturing paramagnetic particles in which a gas or liquid sample containing the paramagnetic particles is contacted with the high-gradient permanent magnet apparatus described above; wherein, during the contacting step, the gas or liquid sample contacts the magnetizable porous filling material of the high-gradient permanent magnet apparatus, and at least a portion of the paramagnetic particles in the gas or liquid sample is captured on the magnetizable porous filling material.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1261633
- Patent Number(s):
- 9,387,486
- Application Number:
- 14/867,768
- Assignee:
- UT-BATTELLE, LLC (Oak Ridge, TN)
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2015 Sep 28
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES; 47 OTHER INSTRUMENTATION
Citation Formats
Cheng, Mengdawn, Ludtka, Gerard Michael, and Avens, Larry R. High-gradient permanent magnet apparatus and its use in particle collection. United States: N. p., 2016.
Web.
Cheng, Mengdawn, Ludtka, Gerard Michael, & Avens, Larry R. High-gradient permanent magnet apparatus and its use in particle collection. United States.
Cheng, Mengdawn, Ludtka, Gerard Michael, and Avens, Larry R. Tue .
"High-gradient permanent magnet apparatus and its use in particle collection". United States. https://www.osti.gov/servlets/purl/1261633.
@article{osti_1261633,
title = {High-gradient permanent magnet apparatus and its use in particle collection},
author = {Cheng, Mengdawn and Ludtka, Gerard Michael and Avens, Larry R.},
abstractNote = {A high-gradient permanent magnet apparatus for capturing paramagnetic particles, the apparatus comprising: (i) at least two permanent magnets positioned with like poles facing each other; (ii) a ferromagnetic spacer separating the like poles; and (iii) a magnetizable porous filling material in close proximity to the at least two permanent magnets. Also described is a method for capturing paramagnetic particles in which a gas or liquid sample containing the paramagnetic particles is contacted with the high-gradient permanent magnet apparatus described above; wherein, during the contacting step, the gas or liquid sample contacts the magnetizable porous filling material of the high-gradient permanent magnet apparatus, and at least a portion of the paramagnetic particles in the gas or liquid sample is captured on the magnetizable porous filling material.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {7}
}
Works referenced in this record:
Magnetic core shell nanoparticles trapping in a microdevice generating high magnetic gradient
journal, January 2011
- Teste, Bruno; Malloggi, Florent; Gassner, Anne-Laure
- Lab on a Chip, Vol. 11, Issue 5