👉 Fluid, often found in the form of a synthetic or semi-synthetic polymer, serves several key functions. Primarily, it acts as a lubricant, reducing friction between moving parts in mechanical systems, thereby enhancing efficiency and longevity. In biomedical applications, fluid can serve as a biomaterial for tissue engineering or drug delivery systems, providing a supportive environment for cell growth and controlled release of therapeutic agents. Additionally, fluid can be used in various industrial processes, such as cooling systems, hydraulic systems, and as a medium for chemical reactions. Its versatility makes fluid an essential component in numerous fields, from engineering to medicine.