Home > News > Clear & Present Superparamagnet
August 28th, 2003
Clear & Present Superparamagnet
Abstract:
Albert E. Stiegman has a knack for designing useful materials in the guise of pretty colored glasses. Over the years, he has fabricated porous silica gels that fluoresce on their own, or that turn vibrant oranges, yellows, and greens when they're exposed to pollutants. His latest find may be the most provocative yet: a beautiful purple glass impregnated with nanoscale-sized magnets. Not only is the bulk material transparent and superparamagnetic--that is, each nanoparticle behaves like a single independent magnetic domain--but its magnetic properties can be tuned by doping it with ammonia and exposing it to light
Source:
C&EN
Bookmark:
Discoveries
Which qubit my dear? New method to distinguish between neighbouring quantum bits June 18th, 2013
Pioneering breakthrough of chemical nanoengineering to design drugs controlled by light June 18th, 2013
Study Shows How the Nanog Protein Promotes Growth of Head and Neck Cancer June 18th, 2013
New Method to Synthesize Zinc Oxide Nanoparticles with High Catalytic Activity June 18th, 2013