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Table 1 Physical characteristics of the developed nanoparticles

From: A synergistic bactericidal effect of low-frequency and low-intensity ultrasound combined with levofloxacin-loaded PLGA nanoparticles on M. smegmatis in macrophages

Formulations Particle size (nm) Zeta potential (mV) PDI LC (%) EE (%)
Blank NPs 173.1 ± 13.2 −20.8 ± 4.25 0.134
LEV-NPs 229.8 ± 12.1* −28.8 ± 3.78 0.038 8.36 ± 0.74 84.74 ± 1.28
  1. NPs: nanoparticles; LEV-NPs: levofloxacin-loaded nanoparticles; PDI: polydispersity index; LC: loading content; EE: encapsulation efficiency
  2. Standard deviation for n = 3. *P <0.05 compared with NPs