Dopamine could be oxidative self-polymerized under the weak alkaline condition

and formed surface-adherent polydopamine coatings onto a wide range of materials

including noble metals

metal oxides

inorganic and organic polymers and so on. Due to the special molecular structure of polydopamine coatings

secondary reactions could be used to create a variety of ad-layers and leaded to tailoring of the coatings for diverse functional uses. Besides

the functional materials surfaces also could be formed by one-pot strategy by the interaction of dopamine/polydopamine with the functional matter. In recent years

the two-step surface modification and one-step co-deposition surface modification methods based on polydopamine coatings were explored and applied in many areas. It is reported the latest research and application progress of polydopamine coating.