July 7, 2008
Study: Quantum Dots Can Penetrate Skin
U.S. scientists say they've discovered quantum dot nanoparticles can penetrate skin if there's an abrasion, raising new nanotechnology safety concerns.
North Carolina State University researchers said the finding provides insight into potential workplace concerns for healthcare workers or individuals involved in the manufacturing of quantum dots or doing research on potential biomedical applications of the tiny nanoparticles.
Although the study indicates short-term dermal exposure to quantum dots does not pose a risk of penetration unless there is an abrasion, the scientists said there still exists uncertainties about long-term exposure.
The research that included Professor Nancy Monteiro-Riviere and doctoral student Leshuai Zhang appeared in the June issue of the journal Skin Pharmacology and Physiology.