With a new effort combining nanoparticles and a wrist-worn sensor, Google hopes to search through the human body for early signs of disease.

"What we are trying to do is change medicine from reactive and transactional to proactive and preventative," Andrew Conrad, who is leading the project at Google X, tells the BBC. "Nanoparticles … give you the ability to explore the body at a molecular and cellular level."

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US News & World Report writes that genetic testing of lung tumors can help identify treatments for patients.

A team of researchers plans to sample Loch Ness for environmental DNA, according to Newsweek.

The New York Times writes about the appearance of mosaicism in healthy people.

In PNAS this week: insecticide resistance patterns Anopheles gambiae mosquito, transcriptome patterns in Pseudomonas aeruginosa during infection, and more.