New Approach May Boost Biomedical Devices' Effectiveness

by Bidita Debnath on  March 5, 2017 at 10:42 PM Research News
RSS Email Print This Page Comment bookmark
Font : A-A+

An effective direct interfacing material is essential to communication between devices and neural tissue, which includes nerves and the brain.
New Approach May Boost Biomedical Devices' Effectiveness
New Approach May Boost Biomedical Devices' Effectiveness

Modern electronic biomedical devices are enabling a wide range of sophisticated health interventions and now, a new research's approach can help boost their lifetime and effectiveness.

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. The University of Delaware researchers have reported the development of an electrografting approach to significantly enhance PEDOT adhesion on solid substrates.

Lead researcher David Martin Martin explained that the term electrografting describes a process in which organic molecules are electrochemically oxidized or reduced, followed by the formation of metal-organic bonds at the substrate-polymer interface. Compared to other methods, surface modification through electro-grafting takes just minutes. Another advantage is that a variety of materials can be used as the conducting substrate, including gold, platinum, glassy carbon, stainless steel, nickel, silicon, and metal oxides.

The actual chemistry usually takes multiple steps, but Martin and his team have developed a simple, two-step approach for creating PEDOT films that strongly bond with metal and metal oxide substrates, yet remain electrically active. "Our results suggest that this is an effective means to selectively modify microelectrodes with highly adherent and highly conductive polymer coatings as direct neural interfaces," Martin noted. The study is published in Science Advances.

Source: ANI

Post a Comment

Comments should be on the topic and should not be abusive. The editorial team reserves the right to review and moderate the comments posted on the site.
Notify me when reply is posted
I agree to the terms and conditions

News A - Z

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

News Search

Medindia Newsletters

Subscribe to our Free Newsletters!

Terms & Conditions and Privacy Policy.

Find a Doctor

Stay Connected

  • Available on the Android Market
  • Available on the App Store

News Category

News Archive

Loading...