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Particle size distribution and particle structure of TQ-PLGA-PF68 nanoparticles. (A) Particle size distribution of TQ-PLGA-PF68 nanoparticles with the average size at 76.92 ± 27.38 nm, processed by Microcal Origin 6 software (Origin Lab, United States); (B) TQ-PLGA-PF68 nanoparticle image observation at 10,000× magnification using FEI CM12 transmission electron microscopy.
