Modifying stainless steel surfaces with responsive polymers: effect of PS-PAA and PNIPAAM on cell adhesion and oil removal

Callewaert, Maïté;Rouxhet, Paul;Boulange-Petermann, L
(2005) Journal of Adhesion Science and Technology : the international journal of theoretical and basic aspects of adhesion science and its applications in all areas of technology — Vol. 19, n° 9, p. 765-781 (2005)

Files

No attached file found for this publication.

Details

Authors
  • Callewaert, MaïtéUCLouvain
    Author
  • Rouxhet, PaulUCLouvain
    Author
  • Boulange-Petermann, L
    Author
Abstract
The treatment of stainless steel surfaces with responsive polymers was investigated using X-ray photoelectron spectroscopy and scanning electron microscopy. Poly (N-isopropylacrylamide) (PNIPAAM) is a temperature-sensitive polymer which is soluble in water below 32 degrees C (Lower Critical Solubility Temperature (LCST)) but collapses and aggregates above 32 degrees C. This polymer was adsorbed at 50 degrees C from solutions at different concentrations, followed by rinsing and different drying procedures. Thereby, a large variety of surface structures could be obtained, from smooth films to surfaces showing marked relief features due to residues of PNIPAAM aggregates. Two poly(styrene)b-poly(acrylic acid), PS-PAA, with different block lengths, were spin-coated on stainless steel and showed preferential exposure of PS blocks at the outermost surface. PNIPAAM-conditioning was shown to strongly reduce yeast cell adhesion and to facilitate the removal of oil soil due to its high water affinity and chain mobility below the LCST. PS-PAA coatings also reduced yeast cell adhesion; this may partly be due to a reorganization of the surface, leading to exposure of PAA chains in contact with water and thus to electrostatic repulsion of the yeast cells.
Affiliations

Citations

  • APA
  • Chicago
  • FWB

Callewaert, M., Rouxhet, P., & Boulange-Petermann, L. (2005). Modifying stainless steel surfaces with responsive polymers: effect of PS-PAA and PNIPAAM on cell adhesion and oil removal. Journal of Adhesion Science and Technology : the international journal of theoretical and basic aspects of adhesion science and its applications in all areas of technology, 19(9), 765-781. https://doi.org/10.1163/1568561054867837 (Original work published 2005)