biomaterial

Biomedical composites are developed exclusively for implantation purposes. In recent years, nano-composite prostheses and composite scaffolds for tissue engineering applications have been explored. In both cases, specific functional properties are provided by the addition of filler. [20 marks] a) Poly(glycerol-co-sebacate)/hydroxyapatite (PGS/HA) composite is fabricated for cancellous bone application. i) Differentiate the component/element which plays the role as a matrix and reinforcement, respectively. [2 marks] ii) Discuss two functions of matrix and two functions of reinforcement. [4 marks] iii) Suggest two purposes of the reinforcement of HA into PGS. [4 marks]