中文摘要：

生物黏液是广泛存在于自然界中动植物体内的一种胶黏物质,为多种成分的混合物,它在生物水基润滑体系中扮演了至关重要的角色.对于不同生物机体来说,黏液的不同组分和结构决定了其实现润滑作用的不同机理.本文作者分别从植物黏液、动物黏液和关节滑液3个方面综述了目前国内外关于生物黏液润滑特性的研究进展,并总结了当前研究中存在的问题和有待进一步探索的方向.这不仅对于探索摩擦和润滑的本质有着重要的意义,而且对于开发和研制绿色环保的生物水基润滑剂具有潜在的应用价值.

英文摘要：

Biological mucus is an adhesive substance secreted by both animals and plants, which plays an essential role in biological water-based lubricating systems. For different living organisms, the lubricating mechanisms determined by different components of mucus are distinct. Herein, we reviewed the research progress on lubricating properties of biological mucus, including plant mucilage, animal mucus and synovial fluid. Moreover, some problems were summarized and future developments were proposed. The research on the lubricating properties of biological mucus was of great significance in exploring the nature of tribology and lubrication, and showed potential application values in developing environmentally friendly biological water-based lubricants.