Not sure...at 1st I thought it might have somethin
Post# of 22456
But I Googled 'PMN clearance' & this is what I found:
http://www.fda.gov/MedicalDevices/Productsand...learances/
If this is-indeed the clearance they achieved , which is only a preliminary step thru the FDA approval process , I suspect that it may be for ex vivo medical bio-assays , since any use of QD's 'inside' the body is still years away , if ever. There are new fluorophores being developed everyday that are based on non-toxic bio-compatible ingredients.