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. Author manuscript; available in PMC: 2020 Jul 6.
Published in final edited form as: Mol Pharm. 2019 Mar 11;16(4):1433–1443. doi: 10.1021/acs.molpharmaceut.8b00959

Figure 3. PLGA microparticle characterization.

Figure 3.

(a) Histogram of 85/15 and 50/50 PLGA MP size distribution measured via ImageJ analysis of (b) representative SEM images. (c) Zeta potential of 85/15 and 50/50 PLGA MP measured in 10 mM NaCl with Zetasizer (n = 3). (d) Turbidity of PBS solution of naked VP vs VP-loaded 50/50 PLGA MP with equivalent VP concentration of 20 μg/mL, determined by absorbance at 550 nm (n = 3). All error bars are s.e.m. * = P < 0.05 as determined by unpaired Student’s t-test comparison.