This chemical is widely used in the pharmaceutical and biotechnology industries as a polymer conjugate to improve the solubility, stability, and circulation time of therapeutic drugs. It is particularly effective in creating stealth liposomes and nanoparticles, which can evade the immune system and deliver drugs more efficiently to target tissues. Additionally, it is utilized in the modification of proteins and peptides to reduce immunogenicity and enhance their therapeutic efficacy. In the field of drug delivery, it serves as a key component in the development of long-acting injectable formulations, ensuring sustained release of active ingredients over extended periods. Its biocompatibility and water-soluble nature make it a preferred choice for various biomedical applications, including tissue engineering and diagnostic imaging.