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. Author manuscript; available in PMC: 2012 May 30.
Published in final edited form as: J Control Release. 2011 Feb 23;152(1):110–119. doi: 10.1016/j.jconrel.2011.02.013

Figure 2.

Figure 2

Acid-base titration curve of p(DAH-R/API)s. 10 mg of each polymer was dissolved in 10 mL of 0.1 M NaCl solution, which was subsequently set to pH 11 using 1 M NaOH. The solutions were titrated to pH 3 with 0.1 M HCl. Titration curve of 0.1 M NaCl is presented as a control. Dashed lines indicate endosomal pH range (5.1 and 7.4).