Biomaterials

This topic compares major implant material families and links their chemistry to mechanical service behavior. Students must justify material choice using corrosion, fatigue, wear, and stiffness arguments rather than memorized lists.

Biocompatibility is context specific: a material can be suitable for one application and unacceptable for another. This chapter teaches test planning under ISO 10993 and interpretation of biological risk evidence.

Surface modification allows engineers to tune biological response without changing bulk implant strength. It is a high-yield exam topic because it links materials science, cell interaction, and manufacturing processes.

Body environment is chemically active and mechanically demanding, so implant degradation is unavoidable unless carefully managed. This chapter combines electrochemistry, tribology, and polymer aging to predict service reliability.

Scaffold engineering aims to provide temporary structural and biochemical support for tissue regeneration. The chapter asks you to balance porosity, mechanics, transport, and degradation in one coherent design approach.