Scholarlink

<p>Hydrogel coatings are a promising strategy to reduce friction and wear in biomedical implants, yet replicating the durability of natural cartilage remains a key challenge due to the inherent trade-off between low friction and high wear resistance. Here, we present a picot-fiber hydrogel coating (PFHC) that mimics the hierarchical architecture of cartilage by integrating a lubricious surface layer with a tough, fiber-reinforced core layer. The picot fibers, formed by folded peptide strands with hidden loops, endow the core layer with efficient load-bearing capacity, while the loosely packed, open-structured top layer preserves hydration lubrication. The resulting PFHC achieves both ultralow friction (~0.009) and high wear resistance under long-term sliding over 100,000 cycles, comparable to natural cartilage. By decoupling lubrication and load-bearing functionalities across distinct structural layers, PFHC overcomes the conventional limitations of hydrogel coatings, providing a generalizable strategy to integrate lubrication and mechanical durability for reliable, long-lasting implant interfaces.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Hierarchical picot-fiber hydrogel coating with ultralow friction and high wear resistance

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年2月6日

查看全文
  • Wei Sun,
  • Xiaoxiao Sun,
  • Junsheng Zhang,
  • Lin Wu,
  • Juan Wang,
  • Wei Wang,
  • Yi Cao,
  • Bin Xue

摘要

Hydrogel coatings are a promising strategy to reduce friction and wear in biomedical implants, yet replicating the durability of natural cartilage remains a key challenge due to the inherent trade-off between low friction and high wear resistance. Here, we present a picot-fiber hydrogel coating (PFHC) that mimics the hierarchical architecture of cartilage by integrating a lubricious surface layer with a tough, fiber-reinforced core layer. The picot fibers, formed by folded peptide strands with hidden loops, endow the core layer with efficient load-bearing capacity, while the loosely packed, open-structured top layer preserves hydration lubrication. The resulting PFHC achieves both ultralow friction (~0.009) and high wear resistance under long-term sliding over 100,000 cycles, comparable to natural cartilage. By decoupling lubrication and load-bearing functionalities across distinct structural layers, PFHC overcomes the conventional limitations of hydrogel coatings, providing a generalizable strategy to integrate lubrication and mechanical durability for reliable, long-lasting implant interfaces.