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IPFS News Link • Science, Medicine and Technology

Improved materials for interfacing neural tissue with electronic biomedical devices

• http://www.nextbigfuture.com

An effective direct interfacing material is essential to communication between these devices and neural tissue, which includes nerves and the brain.

In recent years, a conjugated polymer known as PEDOT — widely used in applications such as energy conversion and storage, organic light-emitting diodes, electrochemical transistors, and sensing — has been investigated for its potential to serve as this interface.

In some cases, however, the low mechanical stability and relatively limited adhesion of conjugated polymers like PEDOT — short for poly (3,4-ethylene dioxythiophene) — on solid substrates can limit the lifetime and performance of these devices. Mechanical failure might also leave behind undesirable residue in the tissue.

A research team led by the University of Delaware's David Martin has reported the development of an electrografting approach to significantly enhance PEDOT adhesion on solid substrates.


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