ThermalWinter
Comments
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Yes, but you need to ask about the coating process. TiN can demagnetize the NdFeB if coated using most techniques because of the heat, and you have to make sure they don't have holes in the coating a micron across.
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Personal experience is only useful on a small scale, even a study involving one singular individual is prey to bias and variability preventing a solid conclusion. If you continue you need to research the physiological interactions causing these benefits and carefully determine risks before creating a control group. Before…
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Have you considered doing a batch of small cylinders for implantation on two segments of the finger for increased sensory feedback? It certainly requires a more professional implantation and shouldn't be carried out by inexperienced or uninformed individuals but if done properly would drastically increase sensitivity
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It's been about 10 days since I last asked for an update, what's your plans Cassox?
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If you managed to make it to the U.S. I would contribute
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I am definitely going to be purchasing multiple magnets in the next batch as I have many of my own experiments to do. How much needs to be pledged per batch including replenishing supplies?
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Also high temperatures can demagnetize the magnet
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Nothing below N52 is worth implanting
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Yes, titanium. Unfortunately most common coating processes damage the magnet and it's difficult to get a full coating on the micron level.
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If you are willing to actually look into how you can weld the titanium casing I can assist you. I have many methods of testing the efficacy of the biocompatible layers, and others ex Cassox may be able to help with the actual casing as that's his realm of expertise.
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Where did you get this magnet from? I'm asking because of safety concerns...
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Unfortunately, no. Adhesion is a big factor in the difficulty in doing two part layers of resin which means optimal adhesion is only possible when both resins are malleable. The other concern is thickness, which is likely what Cassox is referring to when he states "Two part resins don't lend themselves to this application"
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Any new information?
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If you would like some support testing the magnets I would be happy to. If you'd be willing to, i'd like to do some extensive testing on the resin under moderate to extreme conditions for varying lengths of time to find when weaknesses like degradation and permeability branch into potential physical risk. That kind of…
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Link the exact magnet you intend on implanting so I can determine the efficacy of your testing methods so I can prevent you from accidentally damaging the biocompatible coating. You won't require allot of anesthetic, you are implanting the magnet just below the dermis in the subdermal layer and don't have to cut an…
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You need to heavily cosider galvanic corrosion. The neodymium will have long term galvanic corrosion when it is in contact with another noble metal. The effect is exponential depending on your anode/cathode ratio and the difference in nobility between the two metals. Galvanic corrosion between neodymium and the outer layer…
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Birdhandz pm me if you have positive results and I will look into helping you. I am interested in getting the epoxy coated with the resources I have through this forum instead of through a company and then having TiN coated separately. If I go this route I am also looking into getting the magnet's coated in pure Titanium…
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Misslitty if you go on my thread and read my conversation with Cassox you'll get a basic explanation of galvanic corrosion. The epoxy layer is dielectric, meaning it is an incredibly efficient electric current insulator. This dielectric layer is required between TiN (Titanium + Nitrate) and the nickel layer so the magnet…
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I found a manufacturer willing to coat the epoxy and I can also request that they perform tests on the coating to verify it's integrity, unfortunately this will cost more. The magnets will only be magnetized after they have been coated so that I can guarantee the strength of the magnet. I am currently working out the tests…
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I stopped tagging users since it doesn't seem to be working. Puzbiks is the username he messaged me on. He still hasn't responded to me and I am working out getting epoxy at the moment. I'll post when I have more information, for now we need more money to fund development
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What do you mean "turn around magnets implants?"
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My only concern in regards to painting the epoxy onto the magnet is it will be very difficult to get a complete coating. The strands of the brush may create microscopic impurities in the coating. I am looking into a possible method of coating magnets in medical grade epoxy and will post it here when I have more…
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Birdhandz there are two types of epoxy that have different cureing methods. The first cures immediately when mixed and has a small time frame to coat the magnets and the second needs to be heat treated to cure. The heat treatment would be very difficult. I am seriously considering epoxy though. I am looking into doing it…
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Coating is very difficult, expensive, and messy. The necessary equipment and material is expensive and it will be very difficult to get evenly distributed coats across the entire magnet. On top of that many of the materials require very high temperatures to be used in the process and that means the magnets have to be…
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After the troll is startled he whimpers off to his cage and is never seen again.
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I did some research and agree with you that bleach will not effect Teflon. I'm looking into getting the magnets coated in Ni/Cu/Au+PTFE. I'm waiting for a response as to how thick the Teflon coating is going to be. It would be helpful if everybody pm'd me all the companies they know that can coat/manufacture magnets. I am…
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Birdhandz could you provide a source for the pH that Teflon begins degradation? I was assuming Teflon would easily degrade, that's why the TiN layer is necessary. The Au/Cu layer is necessary for testing but I am concerned about adhesion issues between Au and Teflon. If Teflon can withstand bleach then it makes TiN useless…
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At the moment I am heavily considering Cu/Au+PTFE+TiN. I would prefer Au over Cu however Au doesn't bind well. The PTFE binds very well and is also a dielectric layer inbetween the two noble metals. PTFE is also biocompatible, however I will only be able to chemically test that the top TiN layer is fully intact. I'm…
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You mentioned having an implant yourself, do you have any first hand experience with it?
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"There are a couple issues I could use your help with. I've come to the conclusion the best materials to use for the magnets is Au+TiN. Gold is higher in the galvanic series than titanium, making gold the cathode and titanium the anode. In order to reduce the corrosion rate we can factor in the cathode/anode ratio as the…