I don't have the finger bandwidth to caveat every statement I make. Yes _new_ nanoparticles. I could make a new nanocoating, apply it to everything and then when it turns out to not by safe, my Inc can fold and I can continue on my merry existence. Nanoparticle toxocology is a complex field. And these _new_ substances penetrate cells walls very readily. It isn't antiscience to question the harm these things can do.