Contact Printing of Metal Ions onto Carboxylate-Terminated Self-Assembled Monolayers


  • This research was supported by funding from the US Army Research Office (DAAD19-02-1-0299)


The selective exchange of metals ions between salts inked onto the surfaces of polydimethylsiloxane (PDMS) stamps and sodium carboxylate-terminated monolayers is reported. When Ni(ClO4)2 is inked onto a PDMS stamp and contacted with the monolayer, Ni2+ is transferred onto the surface and Na+ is transferred from the surface to the stamp (see Figure). Patterning of metals ions is demonstrated.