A biosensor chip that measures electrical activity in living cells promises both new techniques for neuroscience and the ability to develop new drugs by testing them on living neurons. Infineon Technologies (Munich, Germany) and Max Planck Institute (MPI) of Biochemistry (Munich, Germany) have succeeded in connecting a newly developed biosensor chip with living neurons and in reading electrical signals produced by the cells. Introduced at the recent International Solid State Circuits Conference in San Francisco and named Neuro-Chip, this chip promises to allow neurobiological and neurochemical researchers to gain new insights into the biological function of human neurons, nerve tissue,...