Search results for raman dye

Nanophysics Nov 6, 2008

Gold nanostar shape of the future

Rods, cones, cubes and spheres – move aside. Tiny gold stars, smaller than a billionth of a meter, may hold the promise for new approaches to medical diagnoses or testing for environmental contaminants.

Jun 11, 2008

Northwestern chemist investigates lost reds in Homer painting

More than 30 years ago, when Northwestern University chemist Richard Van Duyne developed a powerful new sensing technique, he never thought he would be using it to learn more about treasures in the Art Institute of Chicago's ...

Bio & Medicine Jan 16, 2008

Gold Nanoparticles Shine Brightly in Tumors

Solid gold nanoparticles have long been used to treat rheumatoid arthritis and more recently have shown promise in treating various types of cancer. Now, thanks to work by Shuming Nie, Ph.D., and his colleagues at the Emory-Georgia ...

Bio & Medicine Nov 6, 2006

Nanoparticle Probes Light Up Cancer Cells

Cancer biologists are always on the lookout for new methods of studying the effects that drug therapy has on malignant cells. Now they have a new tool – silver nanoparticles, embedded in nanoscale silica spheres, which ...

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