Used as a surface modifier in nanotechnology to functionalize gold surfaces due to its strong affinity for metals, forming self-assembled monolayers (SAMs). These monolayers are applied in biosensors, molecular electronics, and corrosion inhibition. Also serves as a coupling agent in the synthesis of nanoparticles, improving stability and dispersion in organic solvents. Additionally, employed in the development of sensors and diagnostic devices where controlled surface chemistry is critical.