Biointerphases

, Volume 4, Issue 2, pp FA45–FA49

Stimuli-responsive command polymer surface for generation of protein gradients

  • Leonid Ionov
  • Nikolay Houbenov
  • Alexander Sidorenko
  • Manfred Stamm
  • Sergiy Minko
Open Access
Article

DOI: 10.1116/1.3119722

Cite this article as:
Ionov, L., Houbenov, N., Sidorenko, A. et al. Biointerphases (2009) 4: FA45. doi:10.1116/1.3119722

Abstract

Mixed polyelectrolyte brushes with a composition gradient were used as a platform for fabrication of stimuli-responsive command surfaces to control the generation of concentration gradients of adsorbed protein molecules. Switching between homogeneously adsorbed protein layers and adsorbed layers with protein concentration gradients was achieved by changing the pH of protein aqueous solutions. Protein adsorption and the direction of the adsorption gradient were tuned and also turned off and on or reversed by tuning the proton concentration in the pH range 4.0–8.6.

Copyright information

© American Vacuum Society 2009

Authors and Affiliations

  • Leonid Ionov
    • 1
  • Nikolay Houbenov
    • 2
  • Alexander Sidorenko
    • 3
  • Manfred Stamm
    • 2
  • Sergiy Minko
    • 4
  1. 1.Max-Planck-Institute of Molecular Cell Biology and GeneticsDresdenGermany
  2. 2.Leibniz Institute of Polymer Research Dresden e.VDresdenGermany
  3. 3.Department of Chemistry and BiochemistryUniversity of the Sciences in PhiladelphiaPhiladelphiaGermany
  4. 4.Department of Chemistry and Biomolecular Science, NanoBio Laboratory (NABLAB)Clarkson UniversityPotsdam

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