A pinprick of blood drives this lab.

The article reports that researchers at the Whitesides Research Group at Harvard University in Cambridge, Massachusetts, might have found a way to make micro fluidics technology much cheaper. According to a "Technology Review" report, the researchers do it by taking advantage of the natural movement of liquid through paper. It is inferred that the result of the study could be disposable diagnostic tests simple and abundant enough for use in the developing world. It states that George Whitesides and his team at Harvard have built a micro fluidic device on a square of paper the size of a pinky fingernail.