Biocompatible adhesives are those which can be used in biological environments, either on or within living tissue, with no detectable adverse effects during or after contact. These materials are therefore used primarily on animals and humans.
Use of biocompatible adhesives is, understandably, restricted and there is a range of regulatory requirements to be met before an adhesive can be used for a biological application; please see A guide to adhesives in medical applications.
In general, the longer the adhesive is in contact with the biological environment of the organism - and the more invasive the application - the more stringent the testing protocols.
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