Researchers have developed a micro-microscope. Writing in the journal Proceedings of the National Academy of Sciences, scientists at Caltech describe the creation of an on-chip, lens-free microscope that they say could be built for about ten dollars. The device uses a screen of tiny holes mounted above a CCD sensor to image liquids flowing through microscopic channels in the chip. Such a microscope chip could provide high-resolution microscopic images in field instruments for tasks such as blood screening and water testing. We'll talk with one of the inventors of the device about its potential uses.
Produced by Karin Vergoth