People living in remote areas of developing nations are often struck with diseases that are preventable or curable, says the Guardian's GrrlScientist. Unfortunately, they often can't get to places where they could be treated. So now, in a "brilliant cross-pollination of engineering, physics and biology," researchers have developed a pocket-sized microfluidics-based device that can accurately diagnose syphilis and HIV in minutes, in any location, GrrlScientist says.