Jump to main content
Jump to site search


Kinetic Control in the Temperature-Dependent Sequential Growth of Surface-Confined Supramolecular Copolymers

Abstract

We report the sequential growth of supramolecular copolymers on gold surfaces, using oppositely charged dendritic peptide amphiphiles. By including water-solubilising thermoresponsive chains in the monomer design we observed non-linear effects in the temperature-dependent sequential growth. The step-wise copolymerisation process is characterised using temperature dependent SPR and QCM-D measurements. At higher temperatures, dehydration of peripheral oligoethylene glycol chains supports copolymer growth due to more favourable comonomer interactions. Both monomers incorporate methionine amino acids but remarkably, desorption of the copolymers via competing sulphur gold interactions with the initial monomer layer is not observed. The surface-confined supramolecular copolymers remain kinetically trapped on the metal surface at near neutral pH and form viscoelastic films with a tuneable thickness.

Back to tab navigation

Supplementary files

Publication details

The article was received on 09 Mar 2017, accepted on 12 Apr 2017 and first published on 12 Apr 2017


Article type: Paper
DOI: 10.1039/C7FD00100B
Citation: Faraday Discuss., 2017, Accepted Manuscript
  •   Request permissions

    Kinetic Control in the Temperature-Dependent Sequential Growth of Surface-Confined Supramolecular Copolymers

    S. Engel, D. Spitzer, L. L. Rodrigues, E. Fritz, D. Straßburger, M. Schönhoff, B. J. Ravoo and P. Besenius, Faraday Discuss., 2017, Accepted Manuscript , DOI: 10.1039/C7FD00100B

Search articles by author

Spotlight

Advertisements