Journal
NATURE CHEMISTRY
Volume 14, Issue 6, Pages 650-+Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41557-022-00916-1
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Funding
- European Research Council Advanced Grant (SYNTISU)
- Oxford's Doctoral Training Centre for Synthetic Biology - Engineering and Physical Sciences Research Council
- Biotechnology and Biological Sciences Research Council [EP/L016494/1]
- DSTL UK [DSTLX-1000099768]
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Researchers have developed bioinspired synthetic neurons made of soft and flexible biomaterials that can quickly transmit electro-chemical signals. These synthetic neurons can release neurotransmitters and initiate downstream reactions. By bundling multiple neurons into synthetic nerves, different signals can propagate simultaneously, transmitting spatiotemporal information. This has important implications for next-generation implants, soft machines, and computing devices.
Bioelectronic devices that are tetherless and soft are promising developments in medicine, robotics and chemical computing. Here, we describe bioinspired synthetic neurons, composed entirely of soft, flexible biomaterials, capable of rapid electro-chemical signal transmission over centimetre distances. Like natural cells, our synthetic neurons release neurotransmitters from their terminals, which initiate downstream reactions. The components of the neurons are nanolitre aqueous droplets and hydrogel fibres, connected through lipid bilayers. Transmission is powered at these interfaces by light-driven proton pumps and mediated by ion-conducting protein pores. By bundling multiple neurons into a synthetic nerve, we have shown that distinct signals can propagate simultaneously along parallel axons, thereby transmitting spatiotemporal information. Synthetic nerves might play roles in next-generation implants, soft machines and computing devices.
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