In nanochemistry, these organic compounds are commonly used to cap self-assembling gold and silver monolayers to provide rigidity and stability, and they are especially useful in this function on hanging mercury drop electrodes.  More acidic and less polar than the oxygen-containing counterparts from which they are named, oxidation of their functional group enables cross-linking in proteins, where they are found on cysteine residues.  They can be
In nanochemistry, these organic compounds are commonly used to cap self-assembling gold and silver monolayers to provide rigidity and stability, and they are especially useful in this function on hanging mercury drop electrodes.  More acidic and less polar than the oxygen-containing counterparts from which they are named, oxidation of their functional group enables cross-linking in proteins, where they are found on cysteine residues.  They can be synthesized through addition to alcohols of polymer supported hydrosulfide, which creates a mercapto-group.  FTP, what is this functional group characterized by an -SH group?
In nanochemistry, these organic compounds are commonly used to cap self-assembling gold and silver monolayers to provide rigidity and stability, and they are especially useful in this function on hanging mercury drop electrodes.  
thiols (accept mercaptans before "mercury" is mentioned; accept sulfhydryls until "hydrosulfide")