Kidney transplantation is a life-saving procedure for patients with end-stage renal disease. However, one of the main challenges is the potential for organ rejection. Nanocoatings on the surface of transplanted kidneys can help reduce immune responses and improve the biocompatibility of the organ. Furthermore, nanoparticles can be used to deliver immunosuppressive drugs more effectively, reducing the risk of rejection and enhancing the longevity of the transplanted kidney.