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. Author manuscript; available in PMC: 2017 Jan 10.
Published in final edited form as: J Control Release. 2015 Dec 2;221:18–25. doi: 10.1016/j.jconrel.2015.11.023

Figure 2.

Figure 2

Release Profile of Calcitonin, Urokinase, and Rituxan from 1:2 P(IA-co-NVP) Hydrogel Microparticles. For t = 0–1 h, release conditions were acidic at pH 3. The release solutions were then neutralized, to pH 7.4 for t > 1 h.