Before revision: In the field of bioengineering, biofunctionalisation (or biofunctionalization) is the modification of a material to have biological function and/or stimulus, whether permanent or temporary while at the same time be biologically compatible.
After revision: In the field of bioengineering, biofunctionalisation (or biofunctionalization) is the modification of a material to have biological function and/or stimulus, whether permanent or temporary while at the same time being biologically compatible.