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. Author manuscript; available in PMC: 2013 Oct 3.
Published in final edited form as: J Colloid Interface Sci. 2011 Jun 13;362(1):58–66. doi: 10.1016/j.jcis.2011.06.012

Fig. 2.

Fig. 2

Volume swelling/shrinking kinetics of 4-μL p-MAA beads: (a) initially soaked in distilled/deionized water (pH = 6.2) and immersed in PBS (pH 7.4) (b) initially soaked in PBS (pH = 7.4) and immersed in PBS (pH 7.4) with 100-mM NaCl.