Ageing of Advanced Biomaterials

The paper presents the ageing processes of advanced biomaterials. The medical profession considers ageing as a syndrome of universal, progressive, irreversible processes that take place at the molecular level (DNA, proteins, lipids) and at the organ level. Ageing is treated quite differently by the engineering profession, which considers it as wear, degradation, corrosion and deformation. In the tissue over time, changes in temperature, changes in pH value and the effect of large forces lead to changes in biomaterials, which are known in the literature as biomaterial ageing processes.