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Apoptosis assay.
Note: Flow cytometer analysis of (A) untreated control cells, (B) free DOX-treated cells, (C) DOX-loaded targeted MSNP-treated cells, and (D) cells treated with DOX-loaded bare MSNPs.
Abbreviations: DOX, doxorubicin; FITC, fluorescein isothiocyanate; MSNPs, mesoporous silica nanoparticles; PI, propidium iodide.
