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Diagnostic gadget mixes and matches all in one

Researchers at Motorola Labs in Tempe, Ariz., have created a miniature diagnostic lab that can detect specific disease-linked genes in a small sample of whole blood.

Numerous groups are developing chips that can detect tiny amounts of disease-related molecules, most notably DNA. However, the DNA typically has to be removed from the cells and purified using other laboratory instruments before the chip can detect it, says Robin Liu, who helped develop the device.

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