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The body can attack foreign stuff, like metals, even if they are not biodegradable. Which is why for example only a few materials are biocompatible.
by htjfkgkridk 5y ago
The body can attack foreign stuff, like metals, even if they are not biodegradable.
Which is why for example only a few materials are biocompatible.
- ncmncm 5y ago"Biocompatibility", as a material property, is largely a mirage. Certain materials, in certain specific forms, don't provoke a reaction, but the identical material in a different shape is as bad as anything else. Canonical example is PTFE, which I have heard described as "biologically inert". A perfectly smooth surface of PTFE might be ignored by the immune system, but a fiber of it poking this or that membrane usually will not be; and once scratched, it has numerous sharp bits.