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 can create cellular markers with a wide variety of colors that can be observed under the microscope. These nanoscale tags could provide a boost to high-throughput drug screening efforts.