CD Bioparticles provides DiagNano™ gold nanoshells with surface plasmon resonant (SPR) absorption at 660, 800 and 980 nm. DiagNano™ gold nanoshells consist of a nanoscale silica core coated by a thin gold shell. Gold nanoshells are the first nanoparticle used for photothermal cancer therapy and the transition of this approach to clinical trials is currently underway. 	silica core gold shell nanoparticles	https://www.cd-bioparticles.com/product/gold-nanoshells-list-181.html