HOP-62 human lung cancer cell line activity of QRT and QRT–AuQDs^a.

	Drug concentrations (μmolar) calculated from graph
HOP-62	LC50	TGI	GI50*
QRT	>100	50.43	<0.1
QRT–AuQDs	>100	40.47	<0.1
ADR	<0.1	15.2	<0.1

^aLC₅₀ = concentration of drug causing 50% cell death, GI₅₀ = concentration of drug causing 50% inhibition of cell growth, TG = concentration of drug causing total inhibition of cell growth, ADR = adriamycin, the positive control compound, a GI₅₀ value of ≤10⁻⁶ molar (i.e. 1 μmolar) is considered to demonstrate activity.^50–52