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Flow cytometry analyses of KB cells incubated with (A) free drugs and (B) drug-loaded LPNPs for 6 h.
Note: DOX dosage was 200 ng/mL, and TPL dosage was 40 ng/mL.
Abbreviations: DOX, doxorubicin; LPNPs, lipid–polymer hybrid nanoparticles; TPL, triptolide.
