M-Peg8-(ch2)12-phosphonic acid ethyl ester is widely used in the development of drug delivery systems due to its amphiphilic properties. It serves as a key component in creating micelles and liposomes, which enhance the solubility and bioavailability of poorly water-soluble drugs. In nanotechnology, it is employed to modify surfaces of nanoparticles, improving their stability and targeting efficiency in therapeutic applications. Additionally, it is utilized in the synthesis of biocompatible coatings for medical devices, ensuring better compatibility with biological tissues. Its role in bioconjugation techniques also makes it valuable for attaching therapeutic agents to targeting molecules, facilitating precise drug delivery.