A report from Northwest University in Shaanxi, People's Republic of China, discusses the use of polyurethane (PU) catheters in clinical treatment. The hydrophobic nature of these catheters can lead to adhesion or adsorption of platelets, proteins, bacteria, and other molecules. To address this issue, the researchers developed a coating with antifouling properties using plasma technology and an amide coupling reaction. The coating showed good stability, hemocompatibility, and antibacterial properties. The study suggests that the use of poly(sulfobetaine) copolymer has the potential to modify different clinical catheters into highly effective antifouling coatings. [Extracted from the article]