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. Author manuscript; available in PMC: 2012 Mar 1.
Published in final edited form as: J Magn Magn Mater. 2011 Mar 1;323(6):651–668. doi: 10.1016/j.jmmm.2010.09.008

Figure 1.

Figure 1

Verification of magnetic drug delivery from the body to the cellular scale in animal and human clinical trials. a) Magnetic resonance (MR) image for a cancer patient, magnetic nano-particle (ferrofluid) accumulation can be seen as lighter regions at the arrow tips (due to the MR extinction phenomena [2]) [3-7]. b) Rat studies: concentrated ferrofluid is visible under the skin [6, 15]. c) Ferrofluid concentrated in rabbit tumor micro-vessels (white arrow) [16, 17]. d) Magnetic nano-particles at the membrane of mouse epithelial cells (e.g. black arrow) [18].