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. Author manuscript; available in PMC: 2019 Apr 15.
Published in final edited form as: Adv Drug Deliv Rev. 2017 Nov 5;124:34–49. doi: 10.1016/j.addr.2017.11.001

Fig. 5.

Fig. 5

Particle penetration at the mucosal barrier of human colonic biopsy samples from controls and patients with ulcerative colitis (UC) mounted in horizontal Ussing chamber. Representative confocal Z-stack projections of 0.5 μm (red) and 2 μm (green) beads 40 minutes after addition to the colonic tissue (blue). Scale bars: 100 μm[134].

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