.3. Biomolecules immobilization
Before immobilizing the biomolecules on the activated membranes, adsorption tests were carried out on the RC pristine membrane. Results evidenced that no biomolecules adsorption occurred on the membrane surface at the operating conditions described in Section 3.2, confirming that RC has a negligible proteins adsorption capacity. Therefore, only the formation of covalent bond should be responsible for protein immobilization on the membrane surface.