Varying the effective buoyancy of cells using magnetic force

Guevorkian, Karine; Valles, James M.; Jr.
June 2004
Applied Physics Letters;6/14/2004, Vol. 84 Issue 24, p4863
Academic Journal
We introduce a magnetic force buoyancy variation (MFBV) technique that employs intense inhomogeneous magnetic fields to vary the effective buoyancy of cells and other diamagnetic systems in solution. Nonswimming Paramecia have been suspended, forced to sediment and driven to rise in solution using MFBV. Details of their response to MFBV have been used to determine the magnetic susceptibility of a single Paramecium. The use of MFBV as a means by which to suspend cell cultures indefinitely is also described. © 2004 American Institute of Physics.


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