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Size, PDI (A) and zeta potential (B) of PLGA nanoparticles and CPP-tagged PLGA nanoparticles with different concentrations of CPPs prepared using the post-microfluidics conjugation approach. Size is displayed as circles and triangles represent PDI. Data are means ± SD (n = 3 independent batches). *p-value < 0.05 for the comparison of CPP-tagged PLGA nanoparticles with PLGA nanoparticles, ns = not significant.
