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. Author manuscript; available in PMC: 2009 Mar 1.
Published in final edited form as: Biomaterials. 2007 Dec 21;29(9):1216–1223. doi: 10.1016/j.biomaterials.2007.11.018

Figure 3.

Figure 3

(A–B) Histology of the small intestine of mice orally dosed with the microparticle-micromagnet complexes encapsulating rhodamine-dextran in the absence (A) and presence (B) of an abdominally applied magnet after 8 h. Images are 20X overlays showing fluorescence of retained particles in small intestine (scale bar = 200 μm). (C) Recovered total radioactivity in small intestine of mice administered with microparticle-micromagnet complexes containing 1 μCi 125I-Insulin. The small intestine was analyzed for radioactive content 6 h after dosing, with the magnet-applied group retaining significantly higher quantity of the 125I-Insulin (p=0.005).