Mixed-conducting particulate composites for soft electronics

Mixed-conducting particulate composite can form functional electronic components by varying particle size and density. Bioelectronic devices should optimally merge a soft, biocompatible tissue interface with capacity for local, advanced signal processing. Here, we introduce an organic mixed-conducti...

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Bibliographic Details
Published in:Science advances 2020-04, Vol.6 (17), p.eaaz6767-eaaz6767
Main Authors: Jastrzebska-Perfect, Patricia, Spyropoulos, George D., Cea, Claudia, Zhao, Zifang, Rauhala, Onni J., Viswanathan, Ashwin, Sheth, Sameer A., Gelinas, Jennifer N., Khodagholy, Dion
Format: Article
Language:English
Subjects:
Materials Science
Neuroscience
SciAdv r-articles
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Summary:Mixed-conducting particulate composite can form functional electronic components by varying particle size and density. Bioelectronic devices should optimally merge a soft, biocompatible tissue interface with capacity for local, advanced signal processing. Here, we introduce an organic mixed-conducting particulate composite material (MCP) that can form functional electronic components by varying particle size and density. We created MCP-based high-performance anisotropic films, independently addressable transistors, resistors, and diodes that are pattern free, scalable, and biocompatible. MCP enabled facile and effective electronic bonding between soft and rigid electronics, permitting recording of neurophysiological data at the resolution of individual neurons from freely moving rodents and from the surface of the human brain through a small opening in the skull. We also noninvasively acquired high–spatiotemporal resolution electrophysiological signals by directly interfacing MCP with human skin. MCP provides a single-material solution to facilitate development of bioelectronic devices that can safely acquire, transmit, and process complex biological signals.
ISSN:2375-2548
2375-2548
DOI:10.1126/sciadv.aaz6767