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. Author manuscript; available in PMC: 2012 Dec 12.
Published in final edited form as: Biomacromolecules. 2011 Nov 11;12(12):4319–4325. doi: 10.1021/bm201246f

Figure 8.

Figure 8

Confocal microscopy images of encapsulation and release properties of PEI-(SF-PG/SF-PL)9 to 20 kDa FITC-Dextran in phosphate solution with different pH. (a) PEI-(SF-PG/SF-PL)9 capsules exposed to 20 kDa FITC-Dextran solution at pH 5.5. (b) PEI-(SF-PG/SF-PL)9 capsules exposed to 20 kDa FITC-Dextran solution at pH 11.5. (c) Capsules in figure “b” adjusted to pH 7.5. (d) Capsules in figure “c” adjusted to pH 11.5. Scale bar is 5 μm