Engineering Minute

Engineering Minute – Biocompatible Soft Microelectrodes

Biocompatible soft microelectrodes measure brain signals

Neural recording is used to collect cell signaling data as well as diagnose and treat neurological disorder, such as epilepsy. Finding a way to achieve stable connections that do not damage tissues over a long period of time has been an issue. To solve this problem, researchers at Linköping University in Sweden have developed a novel conductive material that is as soft as human tissue and can be stretched to twice its on length. These soft microelectrodes are composed of gold coated titanium dioxide nanowires that are embedded in silicone rubber, making them biocompatible and stretchy. Using these soft microelectrodes the researchers were able to collect high-quality neural signals from free moving rats over the course of 3 months. Learn more about soft microelectrodes at Linköping University.

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