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Biotech Science Technology

Researchers Have Successfully Grown Electrodes In Living Tissue 16

Researchers at Linkoping, Lund and Gothenburg universities in Sweden have successfully grown electrodes in living tissue using the body's molecules as triggers. The result, published in the journal Science, paves the way for the formation of fully integrated electronic circuits in living organisms. Phys.Org reports: Linking electronics to biological tissue is important to understanding complex biological functions, combating diseases in the brain, and developing future interfaces between man and machine. However, conventional bioelectronics, developed in parallel with the semiconductor industry, have a fixed and static design that is difficult, if not impossible, to combine with living biological signal systems. To bridge this gap between biology and technology, researchers have developed a method for creating soft, substrate-free, electronically conductive materials in living tissue. By injecting a gel containing enzymes as the "assembly molecules," the researchers were able to grow electrodes in the tissue of zebrafish and medicinal leeches.

"Contact with the body's substances changes the structure of the gel and makes it electrically conductive, which it isn't before injection. Depending on the tissue, we can also adjust the composition of the gel to get the electrical process going," says Xenofon Strakosas, researcher at LOE and Lund University and one of the study's main authors. The body's endogenous molecules are enough to trigger the formation of electrodes. There is no need for genetic modification or external signals, such as light or electrical energy, which has been necessary in previous experiments. The Swedish researchers are the first in the world to succeed in this.

In their study, the researchers further show that the method can target the electronically conducting material to specific biological substructures and thereby create suitable interfaces for nerve stimulation. In the long term, the fabrication of fully integrated electronic circuits in living organisms may be possible. In experiments conducted at Lund University, the team successfully achieved electrode formation in the brain, heart, and tail fins of zebrafish and around the nervous tissue of medicinal leeches. The animals were not harmed by the injected gel and were otherwise not affected by the electrode formation. One of the many challenges in these trials was to take the animals' immune system into account.
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Researchers Have Successfully Grown Electrodes In Living Tissue

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  • Suddenly I suspect the BDSM community would be quite excited.

    • I'm gonna go with...
      "They're making Swedish wokeness zebra-chips to inject you with during the next plandemic. Wear this special magnet necklace to prevent chip-making metals going into your brain."

      • This is William Gibsons fever dream just getting its first Start. We'll probably have to progress through "the terminal man" before we get to "the matrix". Buckle up copper top, these won't happen in your life but your kids kids will have these growing in their heads

        • In the Ian M Banks The Culture series, members of The Culture (a pan-humanoid galactic civilization with AI Minds running most things) could elect to have Neural Lace [fandom.com] grown into their brain which would allow complete control over their limbic system including pain suppression, emotional state adjustment, inter-lace/Mind communication, 'drug simulation, etc...

          The benefits of the Neural Lace were demonstrated throughout the series, even in one case involving a Lace being seeded into a non Culture person (a sl

  • Elon Musk: "This is what we're doing for Neuralink now!"

  • by Miles_O'Toole ( 5152533 ) on Saturday February 25, 2023 @07:23AM (#63322098)

    Resistance is futile.

  • This is good news but a long, long way from anything useful, aside from maybe a fully biological pacemaker and treatments for certain nerve conditions. What we need for brain implants includes inter-connectivity with existing neurons and nerves, rapid response, a way to get the signal in and out of the body, and so on. Here's hoping for a brain implant at least in my kids lifetime. Really I think Neurolink is ahead of the game: the first effective, commonly used implants will be pre-manufactured and deliber
  • by jd ( 1658 ) <imipak@ y a hoo.com> on Saturday February 25, 2023 @01:13PM (#63322554) Homepage Journal

    ...is problematic, because the brain eventually rejects any kind of connection to it, at least that's my understanding. However, I'm not sure if they can use this approach. They might need to force the neurons to develop synapses and then connect electrochemically without having to physically touch the brain. At least, that's the approach I'd probably be looking at. I'm not sure how generating conducting bumps will help with the rejection issue.

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