In addition, new nanoparticles that are made up of fluorescent quantum dots. Antibodies connected to the quantum dots target diseased cells, which causes the dots to glow fluorescently. The fluorescence is picked up by a new, advanced imaging system, which allows doctors to locate a disease and treat the patient. If treatment requires surgery, "nanosurgons" could do the work so that there would be more precise cuts than scalpels, therefore leaving no marks.

          Taking high doses of medicine can be very uncomfortable, and the side effects may be even fatal. Specialized nanoparticles carrying drugs could potentially be used to specifically target diseases and tumors, decreasing the quantity of medicine taken.

          Of course, there are risks. The main risk is that nanoparticles are so small, they may pass straight through the blood-brain barrier, which is a membrane that blocks harmful chemicals from reaching the brain. This risk is even more dangerous due to the fact that nanoparticles could be toxic.