Twinkling Nanostars Cast New Light Into Biomedical Imaging
Tuesday, July 21, 2009 - 22:14
in Physics & Chemistry
Researchers have created magnetically responsive gold nanostars that may offer a new approach to biomedical imaging. The nanostars gyrate when exposed to a rotating magnetic field, and can scatter light to produce a pulsating or "twinkling" effect. This twinkling allows them to stand out more clearly from noisy backgrounds like those found in biological tissue.