Development and Characterization of PEDOT:PSS/Alginate Soft Microelectrodes for Application in Neuroprosthetics.
Details
Serval ID
serval:BIB_3C0CFE580315
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Development and Characterization of PEDOT:PSS/Alginate Soft Microelectrodes for Application in Neuroprosthetics.
Journal
Frontiers in neuroscience
ISSN
1662-4548 (Print)
ISSN-L
1662-453X
Publication state
Published
Issued date
2018
Peer-reviewed
Oui
Volume
12
Pages
648
Language
english
Notes
Publication types: Journal Article
Publication Status: epublish
Publication Status: epublish
Abstract
Reducing the mechanical mismatch between the stiffness of a neural implant and the softness of the neural tissue is still an open challenge in neuroprosthetics. The emergence of conductive hydrogels in the last few years has considerably widened the spectrum of possibilities to tackle this issue. Nevertheless, despite the advancements in this field, further improvements in the fabrication of conductive hydrogel-based electrodes are still required. In this work, we report the fabrication of a conductive hydrogel-based microelectrode array for neural recording using a hybrid material composed of poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate), and alginate. The mechanical properties of the conductive hydrogel have been investigated using imaging techniques, while the electrode arrays have been electrochemically characterized at each fabrication step, and successfully validated both in vitro and in vivo. The presence of the conductive hydrogel, selectively electrodeposited onto the platinum microelectrodes, allowed achieving superior electrochemical characteristics, leading to a lower electrical noise during recordings. These findings represent an advancement in the design of soft conductive electrodes for neuroprosthetic applications.
Keywords
conductive hydrogel, conjugated polymers, electrochemistry, electrode array, neural recordings
Pubmed
Web of science
Open Access
Yes
Create date
21/03/2024 11:49
Last modification date
07/08/2024 10:30