Title :
Selective Manipulation of Superparamagnetic Beads by a Magnetic Microchip
Author :
Gooneratne, Chinthaka P. ; Yassine, Omar ; Giouroudi, Ioanna ; Kosel, Jurgen
Author_Institution :
King Abdullah Univ. of Sci. & Technol., Thuwal, Saudi Arabia
Abstract :
In this paper, a magnetic microchip (MMC) is presented, to first trap and then selectively manipulate individual, superparamagnetic beads (SPBs) to another trapping site. Trapping sites are realized through soft magnetic micro disks made of Ni80Fe20, and SPB motion is controlled by current-carrying, tapered, conducting lines made of Au. The MMC was realized using standard microfabrication techniques and provides a cheap and versatile platform for microfluidic systems for cell manipulation.
Keywords :
gold; iron alloys; magnetic circuits; microfabrication; microfluidics; nickel alloys; soft magnetic materials; superparamagnetism; Au; MMC; Ni80Fe20; SPB; cell manipulation; conducting lines; current-carrying lines; gold; magnetic microchip; microfabrication; microfluidic systems; soft magnetic microdisks; superparamagnetic beads; tapered lines; trapping site; Charge carrier processes; Magnetic resonance imaging; Magnetic separation; Micromagnetics; Permanent magnets; Saturation magnetization; Soft magnetic materials; Magnetic manipulation; microchip; rare cells; superparamagnetic beads;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2013.2244857
