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Contact: Evan Lerner
University of Pennsylvania

192 Sensors on a 1-Inch-Square Chip

Caption: Researchers from the University of Pennsylvania have led an effort to create an artificial chemical sensor based on one of the human body's most important receptors, one that is critical in the action of painkillers and anesthetics. In these devices, the receptors' activation produces an electrical response rather than a biochemical one, allowing that response to be read out by a computer. The researchers were able to fit almost 200 separate devices on this one-inch square chip. Only one of the 193 devices tested in their experiment failed.

Credit: University of Pennsylvania

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