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. Author manuscript; available in PMC: 2015 Dec 28.
Published in final edited form as: J Control Release. 2014 Oct 24;0:261–271. doi: 10.1016/j.jconrel.2014.10.019

Figure 3.

Figure 3

pH transients observed in Cell II in response to a range of glucose concentrations (CG, mM) introduced into Cell I, with pH in Cell I maintained at 7.0. Hydrogel membrane was synthesized with 10 mol% MAA, and exposed marble surface area was S=10 cm2 so kmarble=1.25×10-3 sec-1. Breaks correspond to periods during which solutions in Cells I and II were changed, and membrane reconditioning occurred.