Caltech researchers have made a tiny microfluidics-based microscope that sits on a light-sensing chip identical to those found in digital cameras, reports MIT's Tech Review. The images it takes can then be combined with a processor similar to those found in PDAs, enabling high-throughput imaging in biology labs. The researchers estimate that their microscope could be mass-produced at a cost of $10 each -- and one day, doctors could carry them in their pockets.

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