Table 2.

Inhibition of alkyl-SiQD uptake after exposure to the clathrin-mediated endocytosis inhibitor chlorpromazine. The cells were pre-treated with 30 $\mathsf{\mu }$M chlorpromazine for 1 h and then 100 $\mathsf{\mu }$g mL${}^{-1}$ alkyl-SiQDs and 30 $\mathsf{\mu }$M chlorpromazine for 24 h. The values presented are fluorescence intensities determined by flow cytometry as percentage of the control in the absence of inhibitor. (means ± SD for $n=3$ experiments).

Cell Line	Intensity as % of Control
HeLa	94 ± 6.9
Huh7	170 ± 26