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. Author manuscript; available in PMC: 2015 May 4.
Published in final edited form as: Adv Drug Deliv Rev. 2013 Oct 5;66:101–109. doi: 10.1016/j.addr.2013.09.013

Fig. 4.

Fig. 4

Magnetic resonance based detection. a. Principal of μNMR-based cell detection. When magnetic nanoparticles are bound to cells, they enhance the dephasing of surrounding water molecule’s NMR signal, causing the relaxation time (T2) to be reduced. b. A photograph of the DMR-III, a miniature magnetic resonance system for portable clinical use. The system consists of a permanent NdFeB magnet, micro-coil, and custom electronics. The system interfaces with a mobile device to facilitate system control and data sharing over wireless networks [56].