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Developing Wireless Sensors for a Better Patient Experience

Profs inspect damage after earthquake simulations
Mike Chi shows how his
wireless electrodes could
be placed on a patient's head.

Imagine being able to take an EKG or EEG without needing cables, wires or sticky gels on your skin. Imagine monitoring your heart rate wirelessly while you run. That's the aim of the technology graduate student Mike Chi is developing with Professor Gert Cauwenberghs. Chi recently made a breakthrough toward highquality wireless sensors that earned him the best Bioengineering poster award at the expo.

His team developed a custom chip for sensors that detect electrical signals from the body without direct skin contact and act as extremely sensitive amplifiers. The new chip has dramatically improved signal quality, Chi said, and the sensors' signals now are much closer to what you would expect with a standard, medical adhesive electrode.

Chi recently graduated from the Jacobs School and is focusing on Cognionics, the company he co-founded with Cauwenberghs. Next up: eliminating noise and improving signal processing - and some business challenges too. "We are working on developing a killer app for this," Chi said.

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