Question

Separately list the type of materials used in each of the following medical applications; (a) bone cement, (b) blood vessel prosthesis, (c) skin repair, (d) contact lenses

Answer 1

Serial Number	Medical Applications	Types of materials Used
01	Bone Cement	It consists of Powder and a liquid. Powder includes PMMA or MMA co-polymer beads ,amporphous powder radio opacifier ,initiator. Liquid includes MMA monomer,stabilizer and inhibitor.
02	Blood Vessel Prosthesis	Made upof biodegradable polymers like Polyglicolic acids,polyhydroxyalkanoate,caprolaclone,lactic acid,poly-4-hydroxybutyrate.
03	Skin repair	It is made up of 2 types of polymers.One synthetic and the other one is organic. Synthetic polymer layer is usually thin layer of synthetic silicon sheet that protects the patient from infection and dehydration.
04	Contact lenses	They are made from gel like,water containing plastics called hydrogels-Silicone hydrogel –oxygen-PMMA.

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