Fig. 2. Characterization of HA–CUR and HA–CUR/DOX nanoparticles. (A) The picture of HA–CUR nanoparticle solution. (B) Particle size distribution of HA–CUR nanoparticles. (C) Zeta potential of HA–CUR nanoparticles. (D) The picture of HA–CUR/DOX-NPs solution. (E) Particle size distribution of HA–CUR/DOX-NPs. (F) Zeta potential of HA–CUR/DOX-NPs. (G) Particle size (H) zeta potential stability of HA–CUR/DOX-NPs in 10% serum within 60 h. Data represent mean ± SD (n = 4). *p < 0.05 compared to control group.