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. Author manuscript; available in PMC: 2010 Jun 10.
Published in final edited form as: Opt Express. 2008 Jul 21;16(15):11525–11539.

Fig. 1.

Fig. 1

Theoretical MNP densities ρcrit, ρnoise, and ρmin according to Eqs. (3) and (7). SQUID magnetometry measurements of the MNPs and tissue phantom silicone medium were used to generate the curves. The unknown scaling factor for ρnoise was estimated from the experimental results.