Used in drug delivery systems to enhance the solubility and stability of therapeutic agents. It is particularly effective in forming liposomes and nanoparticles, which can target specific cells or tissues. The maleimide group allows for conjugation with thiol-containing molecules, enabling precise attachment of drugs, proteins, or targeting ligands. This chemical is also employed in the development of diagnostic imaging agents, where it helps in creating contrast agents with improved targeting capabilities. Additionally, it plays a role in surface modification of biomaterials to improve biocompatibility and reduce immune responses. Its applications extend to research in cancer therapy, where it aids in the delivery of chemotherapeutic agents directly to tumor cells, minimizing side effects.