I saw a news story have nano-particles used to treat glass to make dirt proof windows causing lung problems when used in aerosol spray.
Which got me interested in the subject.
So I'm considering buying some pre-treated clothes for the spill resistant wrinkle free aspects, when I came across this "experiment":
[link|http://mrsec.wisc.edu/Edetc/IPSE/educators/activities/nanoTex.html|http://mrsec.wisc.ed...ties/nanoTex.html]
It is product placement masquerading as a science experiment.
Great marketing - get the kids early on.