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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: Anal Chem. 2014 Jun 17;86(13):6683–6688. doi: 10.1021/ac501436d

Figure 1.

Figure 1

(a) SEM image of magnetic nanoparticles, (b) 3D CAD design of HEMOS, and (c) photographic image of the HEMOS containing stacked permanent magnets.