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. Author manuscript; available in PMC: 2012 Mar 1.
Published in final edited form as: J Biomed Mater Res A. 2011 Jan 4;96(3):520–527. doi: 10.1002/jbm.a.33000

Figure 3.

Figure 3

Zeta potentials of PLGA nanoparticles made in chitosan or alginate solution with different concentration (0.1%, 0.2%, 0.5% and 1.0%) at different injection rates ( 20 mL/h, 40 mL/h and 60 mL/h) by syringe pump (chitosan embued positive charge and alginate embued negative charge).