Quantum Dots contain known toxins. They are protected by surface coatings but could deliver very high doses of toxin to individual cells if those coatings fail.
Evidence from:
R Hardman. Env. Health. Perspect. (2006) Vol.114#2 p 165 – 172
“A Toxicologic Review of Quantum Dots: Toxicity Depends on Physicochemical and Environmental Factors”
Specific toxicity testing would be needed for each QD and combination of surface treatments. Accessibility provides the only risk assessment guide for underwriting these materials.
Further detail: