article_snippet: In January, Andrew Conrad, head of Google Life Sciences unveiled plans for a wristband which would work with nanoparticles that circulate around the body looking for cells.
article_snippet: After travelling around the body, nanoparticles that circulate around the body looking for cells would then be collected, using a magnet, to reveal what cells nanoparticles that circulate around the body looking for cells encountered.
article_snippet: nanoparticles that circulate around the body looking for cells would cause the cancer cells to light up, for example, allowing a wristband which would work with nanoparticles that circulate around the body looking for cells to record whether there are dangerous cells in the body.
article_snippet: The system relies on light emitted from the cells as a result of nanoparticles that circulate around the body looking for cells, so scientists must understand how light passes through skin. 
article_snippet: In January, Google lab unveiled plans for a wristband which would work with nanoparticles that circulate around the body looking for cells. 
article_snippet: After travelling around their body, these nanoparticles would then be collected, using a magnet, to reveal what cells these nanoparticles encountered.
article_snippet: these nanoparticles would cause the cancer cells to light up, for example, allowing the wristband to record whether there are dangerous cells in their body . '
highlights_snippet: Wristband could also work with pills that cause unhealthy cells to light up .