In looking at their product list, it doesn’t seem like they have anything that is specifically unique, except maybe their products might be provisioned for HID access control whereas our chips are baseline chip configurations. The other thing of course is the size… 4x22mm… monstrous. We do have some 4x34 chips we made for a horse application… NTAG216… read like a flexNT but glass… huge glass… not worth the size if a smaller flex can achieve the same performance.
If I had to guess I would say these are probably biograde glass but the question becomes surface quality… it might be ok as a material but processing might score the surface or create future biofouling issues. The other question is sealing… these look to be laser sealed instead of flame sealed, which avoids the introduction of contaminants during the sealing process. Finally, since the actual composition of the glass and the wall thickness is unknown, it’s hard to say how it might hold up to physical abuse. In the early days I autoclaved a set of 100 test units and about 93 of them shattered in the relatively low pressure environment of the autoclave. The ones that survived would still not be considered safe for implantation, but they came out looking just fine… so N of 1 is not really what I would consider safe.