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Bifunctional, Conjugated Oligomers for Orthogonal Self-Assembly:  Selectivity Varies from Planar Substrates to Nanoparticles

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journal contribution
posted on 22.12.2004, 00:00 by Brandon R. Walker, Ronald A. Wassel, Diana M. Ştefanescu, Christopher B. Gorman
A diphenylacetylene containing two different end groups (isonitrile and thioacetate) was synthesized, showing that the chemistry used to install each end group is compatible with that of the others. The isonitrile group binds preferentially to platinum, and the thiol group binds preferentially to gold. However, the selectivity was different when nanoparticles were compared to planar substrates.