Abstract Bioinspired surfaces with special wettability have attracted considerable interest in both fundamental research and industry applications. This work described a biomimic superhydrophobic coating based on one new flower-like micro-nano particles via electrophoretic deposition (EPD) technique. Firstly, flower-like particles were fabricated by a facile one-step oxidation method. The particles were assembled with a large number of ordered crossed 10–20 nm thickness nano-sheets, and the particle diameter was about 2–3 μm, just like the microprotrusions of taro leaf. Furthermore, possible formation mechanism of the particles discussed. Then flower-like particles together with electropositive chitosan were deposited on substrates via EPD. After further modified with a low surface energy reagent, the coatings showed excellent superhydrophobicity (contact angle about 157°, sliding angle 2.1°). In addition, the superhydrophobic coating demonstrated mechanical durability, anti-bacteria adhesion and significantly anti-blood adhesion properties. The results indicated that the biomimic superhydrophobic coating might have the potential application in medical instruments for its significantly anti-blood adhesion property.

中文翻译：

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一种仿生超疏水和抗血液粘附涂层

摘要 具有特殊润湿性的仿生表面引起了基础研究和工业应用的极大兴趣。这项工作通过电泳沉积 (EPD) 技术描述了一种基于一种新型花状微纳米颗粒的仿生超疏水涂层。首先，通过简单的一步氧化法制备花状颗粒。颗粒由大量有序交叉的10-20nm厚的纳米片组装而成，粒径约为2-3μm，就像芋叶的微突起一样。此外，讨论了粒子的可能形成机制。然后花状颗粒与带正电的壳聚糖一起通过 EPD 沉积在基材上。用低表面能试剂进一步改性后，涂层表现出优异的超疏水性（接触角约 157°，滑动角 2.1°）。此外，超疏水涂层表现出机械耐久性、抗菌粘附和显着的抗血液粘附性能。结果表明，仿生超疏水涂层因其显着的抗血液粘连性能而在医疗器械中具有潜在的应用价值。