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. Author manuscript; available in PMC: 2011 Jun 1.
Published in final edited form as: Colloids Surf A Physicochem Eng Asp. 2010 Jun;362(1-3):8–19. doi: 10.1016/j.colsurfa.2010.03.023

Fig. 1.

Fig. 1

Sequestered low molecular weight species can diffuse out of underivatized hydrogel particles (A). Incorporation of an affinity bait within the particle matrix enables the particle to effectively retain the harvested low molecular weight species and prevent them from escaping the particle matrix (B).