Don’t eat them?
They’re suspended in liquid the whole time, so I doubt there’s any danger. Ordinary white paint is also made from nanoparticles in suspension.
That said, I’m not responsible for any death or dismemberment that may arise from my consulting services.
Crossing your name off my list of possible defendants.
People are way too safety conscious these days. Used to be that children’s chemistry books contained instructions on synthesizing chlorine gas. Now? I doubt you’ll even find sucrose in a chemistry set since it might cause obesity if you eat it.
Just make sure to take good notes so we can all learn from your example if you die. Marie Curie had the right idea.