Poly(2-ethyl-2-oxazoline) is widely used in biomedical applications due to its biocompatibility and water solubility. It serves as a coating material for medical devices to reduce protein adsorption and improve biocompatibility. In drug delivery systems, it is utilized to enhance the stability and solubility of therapeutic agents, enabling controlled release. The polymer is also employed in surface modification to create antifouling coatings, preventing the accumulation of biological materials on surfaces. Additionally, it is explored in tissue engineering as a scaffold material to support cell growth and tissue regeneration. Its thermoresponsive properties make it suitable for applications in smart materials and sensors.