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Intracellular uptake of curcumin by breast cancer cells as measured by absorbance assay after exposure to curcumin nanoparticles for four days (n = 3). (a) MCF-7, *p < 0.01 vs 0.1% SF, †p < 0.001 vs 10% SF (b) MDA-MB-453, ‡p < 0.001 vs 0.1% SF, φp < 0.001 vs 10% SF, #p < 0.01 vs 10% SF.
Abbreviation: SF, silk fibroin.
