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. Author manuscript; available in PMC: 2014 Nov 11.
Published in final edited form as: Biomacromolecules. 2013 Oct 16;14(11):3927–3935. doi: 10.1021/bm401050j

Figure 1.

Figure 1

Tunable release of a model protein from AcDex microparticles. A. Intact LOW, MED and HIGH (left to right) particles containing FITC-myoglobin before model protein release studies. Particles are spherical with a smooth surface. B. Myoglobin release from LOW, MED and HIGH particles at pH 6.0, 6.5 and 7.4. At pH 6.0 complete release of myoglobin was seen at 5, 10 and 60 days for the LOW, MED and HIGH particles, respectively. The same trend was seen at pH 6.5, and at pH 7.4, with progressively slower release; in the latter condition only 50% of encapsulated myoglobin was released after 11, 17 and 63 days, respectively. C. SEM images of the MED particles on day 7 at pH 6.0, 6.5 and 7.4 (left to right). Particle morphology correlates with the observed myoglobin release at this time point. Scale bar: 10 μm.