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a LSCM images of 4T1 cells incubated with 100 μg/mL HA-PDA@IQ/DOX NPs. Scale bar: 10 μm. b Flow cytometry analysis of CD80 and CD86 on the BMDCs surface after cocultured with HA-PDA@IQ NPs at different concentrations. c Statistic data according to b. p values were calculated by the Student’s t test. Mean ± SD (n = 4) of three independent experiments, *p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.001
