Federal regulators are clamping down on the use of microscopic particles of silver in consumer products because of potential harmful effects on the environment, but scientists are working on testing standards as the new nanotechnology industries develop, according to a University of Wisconsin-Madison professor.
The Environmental Protection Agency announced new regulations this week on the use of nanosilver, tiny particles of silver a few ten-thousandths the diameter of a human hair thick, that have been infused into products such as food containers, shoe liners and bandages to kill bacteria.