m-PEG24-acid is widely used in bioconjugation and drug delivery systems due to its ability to enhance solubility, stability, and biocompatibility of therapeutic compounds. It is commonly employed to modify proteins, peptides, and small molecules, reducing immunogenicity and prolonging circulation time in the body. In pharmaceutical research, it serves as a linker for attaching targeting moieties to drugs, improving their specificity and efficacy. Additionally, it is utilized in the development of hydrogels and nanomaterials for controlled drug release and tissue engineering applications. Its hydrophilic nature also makes it valuable in surface modification to prevent non-specific protein adsorption in biomedical devices.