ABSTRACT

This chapter considers organic compounds and composites in their applications to nanoand biolubrication. Friction of mutually sliding surfaces is an understandable example from mechanodynamics. Regarding biomechanics, with each step taken by a person, slight friction takes place in a hip joint. The body relies on many other moving parts: the beating heart, chewing teeth, and blinking eyes. All the parts obey laws of biotribology. One of the specific aspects of biotribology is

biocompatibility

, which refers to the compatibility of biomaterials with the biological systems. Fully compatible bioengineering materials are unattainable, similar to the unattainability of medicines with absolutely no side effects. In biotribology, physiological tolerance is a target.