Researchers at the Korea Institute of Science and Technology (KIST) have micromachined a multi-functional brain chip with microelectrodes for recording electrical activity, microfluidic channels for sampling extracellular fluid, and a microfluidic interface chip for multiple drug delivery and sample isolation. The cerebrospinal fluid, which is tested for neurotrasmitters, is extracted at a low pressure to minimise channel blockages from prolonged use. ...

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