http://www.w3.org/ns/prov#value | - wherein R is a bond or a C1-C3 alkylene group which is unsubstituted or substituted with an oxygen or fluorine atom, Y is independently an oxygen, nitrogen or sulfur atom, Z is a methylene group or a carbonyl group, which are unsubstituted or substituted with fluorine, M is a functional group binding selectively to biomolecules, and n is an integer ranging from 1 to 100.
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