Innovative Biodegradable Poly(ionic liquid)s for Bioelectronics

Financiador

Organização

Publicações

Conducting Polymer-Ionic Liquid Electrode Arrays for High-Density Surface Electromyography

Publication . Velasco-Bosom, Santiago; Karam, Nuzli; Carnicer-Lombarte, Alejandro; Gurke, Johannes; Casado, Nerea; Tomé, Liliana C.; Mecerreyes, David; Malliaras, George G.; LAQV@REQUIMTE; DQ - Departamento de Química; John Wiley and Sons Inc.

Surface electromyography (EMG) is used as a medical diagnostic and to control prosthetic limbs. Electrode arrays that provide large-area, high density recordings have the potential to yield significant improvements in both fronts, but the need remains largely unfulfilled. Here, digital fabrication techniques are used to make scalable electrode arrays that capture EMG signals with mm spatial resolution. Using electrodes made of poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) composites with the biocompatible ionic liquid (IL) cholinium lactate, the arrays enable high quality spatiotemporal recordings from the forearm of volunteers. These recordings allow to identify the motions of the index, little, and middle fingers, and to directly visualize the propagation of polarization/depolarization waves in the underlying muscles. This work paves the way for scalable fabrication of cutaneous electrophysiology arrays for personalized medicine and highly articulate prostheses.

2021-09-08Artigo científico

Acesso aberto

Ver mais

Entidade financiadora

European Commission

Programa de financiamento

H2020

Número da atribuição

745734