Silvernanoparticles may come in handy wherever you want to kill germs for instance, in things as diverse as children's dummies (comforters to Americans), teddy bears, washing machines, chopsticks and bed linen.
Since silvernanoparticles act in cleaning biological stains and smells by producing hydroxyl and other oxygen radicals, which are toxic in vivo, then if they were ingested the consequences could be dire.
This latest instance apparently began when Hebrew University professor Shlomo Magdassi was working to develop a touchscreen using silvernanoparticles but ran into trouble making the screen conductive while still remaining transparent.
Another breakthrough is the transparent conductor made of a mixture of silver nanowire and titanium dioxide nanoparticles, which was able to replace the opaque metal electrode used in the past.