Fig. 4
a Size distribution of PPS10-PNIPAm40 micelles before (red) and after (blue) drug loading. b Cryo-TEM image of DOX loaded PPS10-PNIPAm40 micelles. c In vitro release profile of DOX loaded micelles under different conditions: 25 °C (black), 37 °C (red), 25 °C + 0.1% H2O2 (blue) and 37 °C + 0.1% H2O2 (green)