In the future, the value of gold might be measured in nanometers instead of in carats — especially for people with breast cancer. Joseph Irudayaraj’s lab at Purdue University is taking advantage of the optical and physical properties of gold to develop nanorods that can be used as diagnostic tools. Once in blood, these rods circulate and attach to specific cells. Right now, Irudayaraj is working on getting the gold nanorods to adhere to different types of breast cancer cells.

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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.