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Uptake of HCPT-AuNPs and HCPT into MDA-MB-231 cells.
Notes: Results are expressed as mean ± SD. #P<0.05 and ##P<0.01 compared with free HCPT. HCPT-AuNPs-10, 25 and 50: HCPT-AuNPs of an average diameter of 10, 25 and 50 nm.
Abbreviations: HCPT, 10-hydroxycamptothecin; AuNPs, gold nanoparticles; SD, standard deviation; PBS, phosphate-buffered saline.
