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Taking DNA on the Road

Boston University's Catherine Klapperich has designed an electricity-free device that purifies DNA — all it takes to run is a bicycle pump. According to MIT's Technology Review, the device, called SNAP, "extracts genetic material from blood and other bodily fluids by pumping fluid through a polymer-lined straw designed to trap DNA." That straw, then, can be sent to a lab for testing. Indeed, Jose Gomez-Marquez from MIT's Innovations in International Health Initiative is working with Klapperich to refine the prototype for use in Nicaragua.

The Scan

Pig Organ Transplants Considered

The Wall Street Journal reports that the US Food and Drug Administration may soon allow clinical trials that involve transplanting pig organs into humans.

'Poo-Bank' Proposal

Harvard Medical School researchers suggest people should bank stool samples when they are young to transplant when they later develop age-related diseases.

Spurred to Develop Again

New Scientist reports that researchers may have uncovered why about 60 percent of in vitro fertilization embryos stop developing.

Science Papers Examine Breast Milk Cell Populations, Cerebral Cortex Cellular Diversity, Micronesia Population History

In Science this week: unique cell populations found within breast milk, 100 transcriptionally distinct cell populations uncovered in the cerebral cortex, and more.