Brillouin Scattering
Although Raman spectroscopy is a powerful tool for studying the structure of carbon-based materials, the information is restricted to the scale of a few nanometers. The experimental characterization and theoretical modeling of cluster-assembled granular materials must address the problem of cluster coalescence and their organization in structures spanning length scales from the nanometer up to the micrometer. The different structures in which the precursor clusters are organized needs...
History
Accounts on the use of colloidal gold can be found throughout history. The oldest object containing gold nanoparticles is frequently cited as being the Lycurgus Chalice from fifth century Rome 1, 2 . However, accounts of colloidal gold preparations may extend further back in time. Colloidal gold is found in treatments in the alternative medicine Ayurveda the traditional medical system of India , which has its written origins in the Vedas, the sacred texts of India. The Vedas are believed to be...