Do kitchen items shed antimicrobial nanoparticles after use? Study finds very low amounts released after cutting, washing or scratching

Scientists describe how they simulated knife motion, washing and scratching on bacteria-fighting, nanosilver-infused cutting boards to see if consumer use affects nanoparticle release. The test should help regulatory bodies identify if any safety or health risks exist from silver nanoparticles in kitchenware now being sold overseas, and if so, find ways to deal with them before the items are approved for sale in the United States.