Tag Archives: imaging

Glowing Nanoparticles Guide Doctors to Tiny Tumors

Safer silicon nanoparticles glow, then degrade into harmless by-products. The tiny, newly designed nanoparticles, a thousand times smaller than the human hair, lodge in cancers too small to see, helping doctors see where tumors are or delivering precise doses of chemotherapy. Scientists at the University of California in San Diego have a developed a new nanoparticle technique that doesn’t leave toxic metals behind in the body. Because the tiny particles are porous, chemotherapy molecules can be embedded in holes in their structure ten thousand times smaller than a human hair.