As an efficient method for the surface modification of artificial joints, the traditional diamond-like carbon (DLC) film suffers from wear debris accumulation and lubrication failure in vivo and is difficult to meet the extreme requirement for long-service, which suggests that the continuous optimization aimed at DLC long-term stability is needed. Here, we design and successfully prepare a new-type fluorinated fullerene-like carbon (F-FLC) film by means of simultaneous fluorine incorporation and fullerene-like structure construction, and finally achieve the dual optimization of mechanical and tribological properties. As a substitute for the traditional DLC film, the F-FLC film owns the lowest friction coefficient (0.032) and wear rate (1.58 × 10⁻¹⁶ m³/Nm) in the complicated simulated body fluid, due to the suitable fluorine incorporation and the promotion of mechanical properties which derives from the special microstructure evolution. In addition, the subsequent cyto-compatibility evaluation demonstrates that the F-FLC film with free radicals could preserve the stability and bioactivity of proteins, and then enhance the cell spreading and proliferation. In the longer view, combined with the anti-corrosion and anti-osteoporosis effects of fluorine, F-FLC film has a great potential for application in the next generation of joint implants.

传统的类金刚石碳（DLC）膜作为一种人工关节表面改性的有效方法，在体内容易产生磨损屑堆积和润滑失效，难以满足长期使用的极端要求，这表明连续加工需要针对DLC的长期稳定性进行优化。在这里，我们通过同时掺入氟和类富勒烯结构设计并成功制备了新型氟化类富勒烯碳（F-FLC）膜，最终实现了机械性能和摩擦学性能的双重优化。作为传统DLC膜的替代品，F-FLC膜具有最低的摩擦系数（0.032）和磨损率（1.58×10 ^{− 16}  m ³/ Nm），这是由于适当的氟掺入和由于特殊的微结构演变而引起的机械性能的提高，在复杂的模拟体液中产生的。此外，随后的细胞相容性评估表明带有自由基的F-FLC膜可以保留蛋白质的稳定性和生物活性，然后增强细胞的扩散和增殖。从长远来看，F-FLC膜结合氟的抗腐蚀和抗骨质疏松作用，在下一代关节植入物中具有巨大的应用潜力。