The California Institute of Technology has received US Patent No. 8,252,539, "Microfabricated crossflow devices and methods." The patent describes a microfluidic device for analyzing or sorting biological materials, including polynucleotides and polypeptides, viruses, and cells. The device comprises a main channel and an inlet region "in communication with the main channel at a droplet extrusion region," according to the patent abstract.

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The ancestors of the Arizona bark scorpion and other scorpions and spiders underwent whole-genome duplication, KJZZ reports.

A cryptographic approach could help researchers keep genomic data private while researchers analyze it, Scientific American reports.

Andy Page, the former president of 23andMe, has joined a diabetes-management startup, according to CNBC.

In Cell this week: regulatory changes in pancreatic cancer, metabolic shifts in Alzheimer's disease, and more.