Sept. 30, 2008
Courtesy University of Rochester Medical Center
and World Science staff

"Sci­en­tists are find­ing that par­t­i­cles that are barely there—ti­ny ob­jects known as na­no­par­t­i­cles that have found a home in elec­tron­ics, food con­tain­ers, sun­screens, and other ap­plica­t­ion­s—can breach our most per­son­al pro­tec­tive bar­ri­er: the skin.

"The par­t­i­cles un­der scru­ti­ny by Li­sa De­Louise at the Uni­ver­s­ity of Roch­es­ter Med­i­cal Cen­ter, in New York, are less than one five-thou­sandth the width of a hu­man hair.

"In the Sep­tem­ber is­sue of the re­search jour­nal Nano Let­ters, a team led by De­Louise pub­lished a pa­per re­port­ing that nanopar­t­i­cles pass through the skin of a liv­ing or­gan­ism, a type of mouse com­monly used as a mod­el to study the dam­ag­ing ef­fects of sun­light. . . ." More: http://www.world-science.net/othernews/080930_nanoparticle