The viability of cells in the presence of the HSA-NIT conjugates was investigated by the widely-applied 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) test using breast cancer MCF-7 and human glioblastoma T98G cells [44,45]. Here, ALB is linked to glioblastoma.