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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Researchers hope to tease out the signature effects that different carcinogens leave on the genome to determine their contributions to disease, Mosaic reports.

The Wall Street Journal looks into the cost of new gene therapies.

An Imperial College London-led team reports that it was able to use a gene drive to control a population of lab mosquitos.

In PNAS this week: genomic effects of silver fox domestication, limited effect of mitochondrial mutations on aging in fruit flies, and more.