Polydentate amphiphilic thiols possess excellent properties for gold nanoparticle stabilization and functionalization and resistant to exchange reactions.
Gold -thiol bond is generally believed to be one of tightest link for gold surface functionalization and well-known for its thermodynamic stability. In biological environment, where thiol groups are presents, prevention of thiolate-thiol excahnge is also an important consideration. In such situations, a reliable functionalization can provide kinetic stability against ligand exchange.
Different efforts have been made to improve the exchange stability of thiolate ligands on gold nanoparticles.
Recently, German scientist have synthesized the trithiol
1,1,1-tris(mercaptomethyl)undecane as a model to investigate the particle stabilization and exchange properties of tripodal organothiolate.
for further details, refer to: Chem. Commun., 2006, 3693–3695 | 3693
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