NDLI: A microfluidic magnetophoresis chip for continuous single-walled carbon nanotube purification from magnetic force-induced superparamagnetic metal catalyst

Content Provider	IEEE Xplore Digital Library
Author	Kang, J.H. Je-Kyun Park
Copyright Year	2007
Description	Author affiliation: Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon (Kang, J.H.; Je-Kyun Park)
Abstract	We present a continuous magnetophoretic purification method of single-walled carbon nanotubes (SWCNTs) from superparamagnetic Fe catalyst nanoparticles using the enhanced magnetic force in a microfluidic device. The iron impurities of SWCNT were deflected to the higher magnetic energy region in the microfluidic channels where magnetic field was asymmetrically generated in perpendicular direction to the streamline. We carried out continuous purification at a flow rate of 0.36 mg of as-received SWCNTs per hour. The estimated purity of the purified SWCNTs was over 99.0 % when as-received SWCNTs containing about 18.14 % of iron catalysts were used by single-round purification.
Starting Page	437
Ending Page	440
File Size	1171831
Page Count	4
File Format	PDF
ISBN	9781424409501
ISSN	10846999
DOI	10.1109/MEMSYS.2007.4432984
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-01-21
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Microfluidics Carbon nanotubes Purification Magnetic separation Magnetic flux Nickel Microstructure Iron Impurities Magnetic flux density
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Mechanical Engineering Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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