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Reversible Conformational Transitions of a Polymer Brush Containing Boronic Acid and its Interaction with Mucin Glycoprotein.

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Author

  • Alexander E Ivanov
  • Nadezda Solodukhina
  • Marie Wahlgren
  • Lars Nilsson
  • Alexander A Vikhrov
  • Maxim P Nikitin
  • Alexey V Orlov
  • Petr I Nikitin
  • Marina Kuzimenkova
  • Vitali P Zubov

Summary, in English

Reversible changes of the height of a polymer brush containing phenylboronic acid were studied. The polymer brush thickness underwent reversible changes of 0.5-1 nm, in response to the changes in composition of the contacting aqueous phase from deionized water to bicarbonate buffer and vice versa, apparently due to the conformational transition of the weak polyelectrolyte to the more extended electrically charged state. Adsorption of mucin glycoprotein to the polymer brush took place due to boronate/sugar interactions between the glycoprotein and the graft copolymer and resulted in further increase of the brush height by ca. 1.5 nm, as observed by means of spectral correlation spectroscopy and ellipsometry.

Department/s

  • Department of Food Technology, Engineering and Nutrition
  • Biotechnology

Publishing year

2011

Language

English

Pages

275-284

Publication/Series

Macromolecular Bioscience

Volume

11

Document type

Journal article

Publisher

John Wiley & Sons Inc.

Topic

  • Bio Materials

Status

Published

ISBN/ISSN/Other

  • ISSN: 1616-5195