Fig. 1
Preparation and characterization of RTK, TB@RTK, PTX@RTK and TB/PTX@RTK micelles. A Hydrodynamic size distribution of RTK, TB@RTK, PTX@RTK and TB/PTX@RTK micelles. B The TEM images of TB@RTK, PTX@RTK and TB/PTX@RTK micelles. Scale bar: 100 nm. C FL spectra of TB/PTX@RTK micelles in PBS (Ex = 530 nm). D Hydrodynamic size distribution of TB/PTX@RTK micelles were treated with 10 mM H2O2 for 0 h, 2 h, 4 h and 6 h, respectively. UV–vis absorption spectrum of TB@RTK (E) and TB/PTX@RTK (F) micelles upon light irradiation (white light, 100 mW/cm2), respectively. G Hydrodynamic size distribution of TB/PTX@RTK micelles upon light irradiation (white light, 100 mW/cm2, 10 min) after 2 h, 4 h and 6 h, respectively. H In vitro release of PTX from TB/PTX@RTK micelles in PBS (pH 7.4, 0.1 M) containing 0.1% (w/v) Tween 80 at 37 ℃ or H2O2 (10 mM) or light irradiation