New technology with host of photonic applications

A research team led by a chemist at the University of California, Riverside has fabricated microscopic polymer beads that change color instantly and reversibly when external magnetic fields acting upon the microspheres change orientation.

Applications of the new material include display type units such as rewritable or reusable signage, posters, papers and labels, and other magnetically activated security features, as well as environmentally friendly pigments for paints and cosmetics, and ink materials for color printing.

More information at:

http://www.eurekalert.org/pub_releases/2009-06/uoc–nfm061609.php

http://newsroom.ucr.edu/news_item.html?action=page&id=2124