Scientists are familiar with this technique. They inject colors or a color scheme into an animal or plant and then sit back and watch what happens. The relevance here is a report out of Carnegie Mellon University that flourescent nanoparticles can be used to create an imaging technique, which will help identify cancerous growths.
The method is being tested on rats and has so far yielded impressive results. The ultimate goal is to find a cure for glioblastomas, a particularly speedy cancer type of killer. Tumors associated with this disease can be large or small, benign or endangering, etc.
Scientists can use this technology right away, to help them keep track of all manner of things. Students could also use the technology.