ICON Web & News
Search Using OECD Database
Return to Previous Page
Addition or Correction
Release of Silver from Nanotechnology-Based Consumer Products for Children
Link to Journal Abstract
We assessed the potential for childrenĄ¯s exposure to bioavailable silver during the realistic use of selected nanotechnology-based consumer products (plush toy, fabric products, breast milk storage bags, sippy cups, cleaning products, humidifiers, and humidifier accessory). We measured the release of ionic and particulate silver from products into water, orange juice, milk formula, synthetic saliva, sweat, and urine (1:50 product to liquid mass ratio); into air; and onto dermal wipes. Of the liquid media, sweat and urine yielded the highest amount of silver release, up to 38% of the silver mass in products; tap water yielded the lowest amount, ĄÜ1.5%. Leaching from a blanket into sweat plateaued within 5 min, with less silver released after washing. Between 0.3 and 23 ĻĖg m¨C2 of silver transferred from products to wipes. Aerosol concentrations were not significantly elevated during product use. Fabrics, a plush toy, and cleaning products were most likely to release silver. Silver leached mainly via dissolution and was facilitated in media with high salt concentrations. Levels of silver to which children may potentially be exposed during the normal use of these consumer products is predicted to be low, and bioavailable silver is expected to be in ionic rather than particulate form.
In this study, the authors assessed the potential for childrenĄ¯s exposure to bioavailable silver during the realistic use of selected nanotechnology-based consumer products. They measured the release of ionic and particulate silver from products into water, orange juice, milk formula, synthetic saliva, sweat, and urine (1:50 product to liquid mass ratio); into air; and onto dermal wipes.
Peer Reviewed Journal Article
Exposure Or Hazard Target
Method Of Study
Material Analysis and Applications
Risk Exposure Group
Environmental Science & Technology, 2013, 47(15): 8894-8901
Environmental Science & Technology
Quadros ME, Pierson R, Tulve NS, Willis R, Rogers K, Thomas TA, Marr LC
Last updated on August 8, 2013
This work is supported in part by the Nanoscale Science and Engineering Initiative of the National Science Foundation
under NSF Award Number EEC-0118007.
Why Join Us?
Mission and Strategy
Good Nano Guide
Nano EHS Research Needs
Current Practices Survey