Thiols for bioresistant and biospecific SAMs Functionalized thiols Thiols for electroactive SAMs Thiols and disulfides for fluorescent SAMs Photoswitchable thiols Fluorinated thiols Acetyl-protected thiols Disulfides Dithiols for nanoparticle assembly Ligands for iron oxide surfaces Silanes Useful synthetic precursors and building blocks Coupling reagents Molecular Machines