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This is useful if you care about conformation and scare tissue. For everything else, micromachined electrodes/meshes are the superior alternative IMHO. 1. Neit

by apienx 4y ago

This is useful if you care about conformation and scare tissue. For everything else, micromachined electrodes/meshes are the superior alternative IMHO. 1. Neither Synchron nor Neuralink have adopted anything resembling this in their R&D stack (despite the hype and wild claims being around for 15-20 years). 2. Instability is a major concern. And the target application (surgical/augmentation) wouldn't compromise stability for...conformation. Impedance data on such devices are very much humidity-level dependent. 3. Soft matter degrades. Especially if it gets heated by nearby electronics or when subjected to HF signals (brains/synapses are >1kHz). As it does, its properties change. 4. Ionic diffusion will mess with your interface in vivo. It's just the way nature works. Nature created a journal dedicated to reviews in materials science this year. That was the news for me.

panabee 4y ago
thanks for the informed comment. the title is slightly misleading. it suggests content focused on the neuralink, brain-computer interface whereas the article is more of a general overview of all applications, including ephemeral ones like epidermal and wearable applications and ingestible diagnostics. ephemeral ones seem more promising, especially in the near future. could you also elaborate on the benefits of micromachined electrodes/meshes?
nomel 4y ago
> Neither Synchron nor Neuralink have adopted anything resembling this in their R&D stack The current state of a fast changing R&D group shouldn't be used to predict future state, especially when there's nothing close to a final product. They specifically talk about the problem of scar tissue, how biological films may be required, and how research is ongoing, here: https://youtu.be/YreDYmXTYi4?t=7009 https://youtu.be/YreDYmXTYi4?t=7009
trhway 4y ago
>For everything else, micromachined electrodes/meshes are the superior alternative IMHO. >1. Neither Synchron nor Neuralink have adopted anything resembling this in their R&D stack The current story with Neuralink monkey deaths calls into question how superior that tech is.

by apienx 4y ago

panabee 4y ago

thanks for the informed comment. the title is slightly misleading. it suggests content focused on the neuralink, brain-computer interface whereas the article is more of a general overview of all applications, including ephemeral ones like epidermal and wearable applications and ingestible diagnostics. ephemeral ones seem more promising, especially in the near future. could you also elaborate on the benefits of micromachined electrodes/meshes?

nomel 4y ago

> Neither Synchron nor Neuralink have adopted anything resembling this in their R&D stack The current state of a fast changing R&D group shouldn't be used to predict future state, especially when there's nothing close to a final product. They specifically talk about the problem of scar tissue, how biological films may be required, and how research is ongoing, here: https://youtu.be/YreDYmXTYi4?t=7009 https://youtu.be/YreDYmXTYi4?t=7009

trhway 4y ago

>For everything else, micromachined electrodes/meshes are the superior alternative IMHO. >1. Neither Synchron nor Neuralink have adopted anything resembling this in their R&D stack The current story with Neuralink monkey deaths calls into question how superior that tech is.