Is there a search engine for cancer cells?

Around 8 million people die of cancer around the world per year, partly because tumors are detected too late. This could be prevented in the future with the help of nanotechnology. Scientists at Google’s “Google X” research division are working on a method for early detection of cancer in the body using magnetic particles. The nanoparticles are roughly one- thousandth the size of a red blood cell and can be taken in the form of a pill. This means they could track down diseased cells before they become dangerous. Google says this “cancer search engine” will be ready in a few years.