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. Author manuscript; available in PMC: 2015 Apr 1.
Published in final edited form as: Acta Biomater. 2013 Aug 2;10(4):1588–1600. doi: 10.1016/j.actbio.2013.07.031

Fig. 5.

Fig. 5

Schematic of polyelectrolyte self-assembly of heparinized CS/γ-PGA nanoparticles (HP-CS/γ-PGA NPs) and release of bFGF or heparin from the nanoparticles, depending on the environmental pH. Reprinted with permission from [108], copyright (2010) Elsevier.