Deactivation may refer to;
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Protein denaturation
In biochemistry, denaturation is a process in which proteins or nucleic acids lose the quaternary structure, tertiary structure, and secondary structure which is present in their native state, by application of some external stress or comp ...
, the process of disrupting the structure of proteins or nucleic acids
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Drug metabolism
Drug metabolism is the metabolic breakdown of drugs by living organisms, usually through specialized enzymatic systems. More generally, xenobiotic metabolism (from the Greek xenos "stranger" and biotic "related to living beings") is the set o ...
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Sterilization (microbiology), the process of killing or deactivating all life and other biological agents, rendering them unable to cause disease, function, or replicate
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