ALB and breast cancer: Shao et al. [55] found that when human serum albumin (HSA)-modified single-walled carbon nanotubes (SWCNTs), namely SWCNT–HSA complex, were used as a carrier for delivering PTX, the cell uptake rate of MCF-7 breast cancer cells could reach 80%, and this complex showed a stronger antitumor effect than has-modified PTX.