Fig. 1

Synthesis and characteristics of nanoparticles. a Diameter and TEM images of PLGA NPs, Tf-Cou6-PLGA NPs, and Ab@Tf-Cou6-PLGA NPs. Scale bar, 50 nm. b Zeta potential of PLGA NPs, Tf-Cou6-PLGA NPs, and Ab@Tf-Cou6-PLGA NPs. c The release rate of Ab@Cou6-PLGA NPs at pH 5.0 and pH 7.4. d Dot blotting assay of nanoparticles. e Gel electrophoresis analysis of nanoparticles. f Protein adsorption rate of nanoparticles at pH 5.0 and pH 7.4. g Hemolysis rate of nanoparticles at various concentrations