m-PEG3-amido-C3-triethoxysilane is widely used in surface modification and functionalization due to its unique properties. It is commonly applied in the field of biomaterials, where it is used to create hydrophilic surfaces on medical devices, implants, and sensors. This helps to reduce protein adsorption and cell adhesion, improving biocompatibility and reducing the risk of immune responses.

In nanotechnology, it serves as a linker molecule for attaching polymers, peptides, or other functional groups to silica-based materials, such as nanoparticles or glass surfaces. This enhances stability, dispersibility, and targeted delivery in drug delivery systems. Additionally, it is employed in the development of biosensors, where it aids in the immobilization of biomolecules like enzymes or antibodies onto solid supports, ensuring high sensitivity and specificity. Its triethoxysilane group allows for strong covalent bonding to surfaces, making it a versatile tool in material science and biotechnology.