Mussel-inspired chemistry based on polydopamine (PDA) deposition has been developed as a facile and universal method for the surface modification of various materials. However, the inherent shortcomings of PDA coatings still impede their practical applications in the development of functional materials. In this review, we introduce the recent progress in the emerging dopamine-assisted co-deposition as a one-step strategy for functionalizing PDA-based coatings, and improving them in the aspects of deposition rate, morphology uniformity, surface wettability and chemical stability. The co-deposition mechanisms are categorized and discussed according to the interactions of dopamine or PDA with the introduced co-component. We also emphasize the influence of these interactions on the properties of the resultant PDA-based coatings. Meanwhile, we conclude the representative potential applications of those dopamine-assisted co-deposited coatings in material science, especially including separation membranes and biomaterials. Finally, some important issues and perspectives for theoretical study and applications are briefly discussed.

基于聚多巴胺（PDA）沉积的贻贝启发化学已被开发为一种对各种材料进行表面改性的简便且通用的方法。但是，PDA涂层的固有缺点仍然阻碍了它们在功能材料开发中的实际应用。在这篇综述中，我们介绍了新兴的多巴胺辅助共沉积技术的最新进展，这是一种功能化基于PDA的涂料的一步策略，并在沉积速率，形态均匀性，表面润湿性和化学稳定性等方面进行了改进。根据多巴胺或PDA与引入的共组分的相互作用对共沉积机理进行分类和讨论。我们还强调了这些相互作用对所得的基于PDA的涂料的性能的影响。同时，我们总结了这些多巴胺辅助共沉积涂层在材料科学中的代表性潜在应用，特别是包括分离膜和生物材料。最后，简要讨论了一些重要的问题和理论研究和应用前景。