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PCB Design, Electrical, Microcontroller Coding


  • Hey. I've done a lot of work in this area developing an implantable receiver for Qi wireless charging. For a friend I adapted it to be a very powerful light, and she put glow powder resin on it. Attached are some pics of it pre-encapsulation, post encapsulation, then implanted and being powered by a phone. I don't think an…
  • That was excellent, thanks so much for working to get it together! I look forward to more after Grindfest.
  • I suspect it's the low cost/benefit ratio, combined with the difficulty of finding someone qualified to do it and willing.
    in Bones. Comment by Satur9 April 2023
  • Lol what the fuck are you on about.
  • Here's the Discord server they're talking about. It's not officially related to Dangerous Things, but there's a lot of smart people there. If you're talking about cloning you're credit card onto an implant, that can't be done. What you can do is convert an existing credit card into an…
  • Glass is a pretty reliable encapsulant, as long as it was sealed properly. Titanium metal is better. The Titanium Nitride ceramic coating alone is unreliable because it develops small cracks and fissures even under day to day stresses.
  • Thank so much for sharing! It's really valuable to get a longer term look at this stuff. The xG3 is a nice little magnet. Few if any failures.
  • How would a magnet in your temple induce a more meditative state?
  • Thanks mate. I appreciate that, I'll check those out.
  • Sorry if that came off as hostile. It's a common thing on r/biohackers and they usually don't react very well to criticism of it so I was a bit on the defensive. I just reached out to the Professor Dave Explains YouTube channel to see if he would consider doing a debunk on it describing the biochemistry and he agreed if I…
  • I just wish it wasn't so damn expensive to get to the West Coast from the East Coast.
  • So first off the paper talks about some dubious claims that LLLT affects mitochondrial activity and reduces inflammation, which can apparently have a whole host of health benefits (a suspicious amount if you ask me). The "proof" Hamblin provides by sacrificing mice is somewhat subjective and the objective parts are below…
  • What's the mechanism of action that you're interested in? Do you have any papers that show that light therapy stimulates brain function? I presume you mean NIR, but it would help to know the specific wavelengths and which parts of the brain you want to get the light to?
  • It looks like her designs were just looks like, they didn't actually function. Neat idea though. There are piezoelectric generators used to top off pacemakers, but I haven't seen a blood vessel turbine like that. Neat idea, although putting it in parallel with a vein probably won't work well, because the vein itself is a…
  • Lol it's been 7 years. For anyone else interested though Mrln and I worked out something with Schott
  • The Stentrode by Synchron seems like a much more reliable method of getting BCI to market.
  • Oh... I'm not sure I'm following. Medical companies do it for their own internal benefit. RFID biohackers do it because they have to use commercially available chips with IDs, we have no choice. For any implants you make that don't use NFC you can omit any form of unique identifier if you want. I can see where it would…
  • The identifier is probably to distinguish the units during assembly and distribution. The only real use-case I can see once it's implanted is to identify which batch it was from if it failed prematurely
  • How many euros is a whole batch and how many units is that?
  • What? You wouldn't be able to use that at a payment terminal.
  • Nope, sorry. There are reasons I only shared them with Cassox. You might be able to find them online though. If you want screenshots of specific passages I can DM you.
  • @Cassox I have all the docs for ISO 10993 Biological Evaluation of Medical Devices. I'll email you.
    in ISO 10993-18 Comment by Satur9 July 2022
  • Plus, at some point you need to transition through the skin, either at the edges of the peltier plate or just with wire contacts. Creating reliable transdermals is no small feat
  • I take that bit about the glucose biofuel cells back. With the most efficient I could find you're only getting 43uW/cm². That's 0.26mA at 3.3V if you have 20cm² of area, and it has to be in contact with blood (not encapsulated in fibrin sheathing). I mean go for it, try out the peltier modules and see how much power you…
  • You're definitely limited in how much vasculature you can interrupt with these plates, and how much (if any) transdermal space you can maintain on the body to allow heat sinking. Seems like a huge sacrifice for a few mA of power, especially when the average Bluetooth radio is using 10mA+ and sensors consume a non…
  • Well, availability entirely depends on your region. I'm in the US so I usually would use eBay, Digikey, Mouser, or Alibaba. I've attached a picture of what they look like. You can use search terms like "Peltier thermo electric generator module TEG" and you'll definitely find some. Their output voltage varies considerably…
  • Hey, glad you found the forum! You should buy a peltier thermoelectric generator for a few pounds online and try it out so you have a better understanding of it's performance. Pretty much anywhere inside the body you will not have a sufficient temperature gradient to create any appreciable amount of power. You will need to…
  • Very interesting. I'd just caution that there are many different formulations of epoxy and you need to verify that you're using a biosafe one that won't slough off or release toxic byproducts when subjected to the hostile environment of the body.
  • Can you think of any strategies to get the magnet implanted closer to the eardrum without damaging your hearing? I've been trying to make tragus magnets viable for a few years now and the range just sucks. It never even remotely compares to dropping a small magnet directly into your ear canal, even with a 100W amplifier.