Liu Hui, Yang Wufang, Zhao Wenwen, Zhang Jianbin, Cai Meirong, Pei Xiaowei, Zhou Feng
State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
ACS Omega. 2020 Aug 19;5(34):21524-21530. doi: 10.1021/acsomega.0c02114. eCollection 2020 Sep 1.
The combination of natural active antifouling composition and intelligent coatings has been regarded as a prospective approach to avoid marine biofouling. However, the relatively complex coating structure and the excessive rapid release of antifoulants maintain unresolved issues in their practical application. In this work, a novel environmentally friendly natural antifoulant (, ) encapsulated in the polydopamine (PDA) microcapsule (@PDA) is prepared by emulsion interfacial polymerization and blended with the acrylate polymer to prepare a sustainable antifouling coating. Herein, the PDA shell acting as an "intelligent capsule" ensures the controlled release of the antifoulant , and the corresponding loading amount could be high up to 75.40%. As a model antifoulant, the impact of on the adsorption activity of the protein bovine serum albumin (BSA) is studied, as well as the settlement of presentative fouling communities (diatom sp. and red algae sp.) on the constructed coating. The experimental results demonstrate that the natural product integrated eco-friendly antifouling coating occupies the superior capacity of impeding the adsorption of both protein BSA and algae. Such antifoulant () integrating with controlled release character is a great advance in terms of marine antifouling applications. It is, therefore, expected that this innovation will provide guiding significance for developing the next generation of antifouling techniques, especially in the field of marine antifouling.
天然活性防污组合物与智能涂层的结合被认为是一种避免海洋生物污损的前瞻性方法。然而，涂层结构相对复杂以及防污剂释放过快在其实际应用中仍是未解决的问题。在这项工作中，通过乳液界面聚合法制备了一种包裹在聚多巴胺（PDA）微胶囊（@PDA）中的新型环保天然防污剂（，），并将其与丙烯酸酯聚合物共混以制备可持续防污涂层。在此，作为“智能胶囊”的PDA壳确保了防污剂的控释，并且相应的负载量可高达75.40%。作为模型防污剂，研究了对蛋白质牛血清白蛋白（BSA）吸附活性的影响，以及代表性污损群落（硅藻属和红藻属）在构建涂层上的附着情况。实验结果表明，天然产物集成的环保防污涂层在阻碍蛋白质BSA和藻类吸附方面具有卓越能力。这种具有控释特性的防污剂（）在海洋防污应用方面是一大进步。因此，预计这一创新将为开发下一代防污技术提供指导意义，特别是在海洋防污领域。
