Improving Communication with the Brain Through Electrode Technologies

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Over the past 30 years bionic devices such as cochlear implants and  pacemakers, have used a small number of metal electrodes to restore  function and monitor activity in patients following disease or injury of  excitable tissues. Growing interest in neurotechnologies, facilitated  by ventures such as BrainGate, Neuralink and the European Human Brain  Project, has increased public awareness of electrotherapeutics and led  to both new applications for bioelectronics and a growing demand for  less invasive devices with improved performance. Coupled with the rapid  miniaturisation of electronic chips, bionic devices are now being  developed to diagnose and treat a wide variety of neural and muscular  disorders. Of particular interest is the area of high resolution devices  that require smaller, more densely packed electrodes. Due to poor  integration and communication with body tissue, conventional metallic  electrodes cannot meet these size and spatial requirements.

 We have developed a range of polymer based electronic materials  including conductive hydrogels (CHs), conductive elastomers (CEs) and  living electrodes (LEs). These technologies provide synergy between low  impedance charge transfer, reduced stiffness and an ability to be  provide a biologically active interface. A range of electrode approaches  are presented spanning wearables, implantables and drug delivery  devices. This talk outlines the materials development and  characterisation of both in vitro properties and translational in vivo  performance. The challenges for translation and commercial uptake of  novel technologies will also be discussed.

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Dr. Rylie Green

Dr. Rylie Green is a Professor at the Department of Bioengineering, Imperial College London.

Publication Year: 2021

Improving Communication with the Brain Through Electrode Technologies
  • Course Provider: IEEE Brain
  • Course Number: BRAINWEB0016
  • Duration (Hours): 1
  • Credits: None