Silver nanoparticles 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.

ECONOMIST: The risk in nanotechnology

It is a modest home with a raised bed, a television, a few utensils, a shiny red refrigerator and a washing machine tucked away behind a curtain.

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