'Google Inc. is designing tiny magnetic particles to patrol the human body for signs of cancer and other diseases, in the latest example of the Internet giant's sweeping ambition.
Google said its nanoparticles, less than one-thousandth the width of a red blood cell, would seek out and attach themselves to cells, proteins or other molecules inside the body. The company also is working on a wearable device with a magnet to attract and count the particles, as a monitoring tool.
The goal is to provide an early warning system for cancer and other diseases, with an eye toward more effective treatment.
"Every test you ever go to the doctor for will be done through this system," said Andrew Conrad, head of the Life Sciences team at the Google X research lab, who disclosed the project on Tuesday at The Wall Street Journal's WSJD Live conference. "That is our dream."'
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