Dopamine, containing catechol and amine groups, can formthin surface adherent polydopamine (PDA) lm by self-polymerization onto a wide variety of materials in weak alka-line solution.15,16PDA lm can be noncovalently attached to thesurface of many organic and inorganic materials, of which thepronounced biocompatibility, hydrophilicity, and adhesivecapacities make it suitable for forming surface-imprinted lm.17Recently, PDA lm surface-imprinted polymers such as surfacemolecularly imprinted nanowire,18magnetic molecularlyimprinted polymers,19and molecularly imprinted nano-layer20have obtained growing research