A biomaterial is any matter, surface, or construct that interacts with biological systems.
Medical applications of polyurethanes have contributed significantly to the quality of the care system. Different applications such as drug delivery systems, wound dressing, nasogastric catheters, electronic pacemakers are widely being used.
Castor Oil-based polyurethanes have a promising future in the biomaterials fields. In the age of bioactive biomaterials, Castor Oil polyurethanes can add additional properties like antibacterial activity which can enhance and upscale the value of the biomaterials.