The influence of halide-mediated oxidation on algae-born adhesives

Ronit Bitton, Mattias Berglin, Hans Elwing, Carole Colin, Ludovic Delage, Philippe Potin, Havazelet Bianco-Peled

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Adhesive materials extracted from the brown algae Fucus Serratus were studied. These adhesives are composed of cross-linked alginate and polyphenols oxidized in the presence of KI or KBr. All formulations were capable of adhering to a variety of surfaces, however the adhesion properties were influenced by the halide used. SAXS and TEM experiments revealed that oxidized polyphenols self-assemble into chain-like objects, irrespective of the oxidation conditions. Yet, slight differences in the aggregate size were detected. QCM-D results showed that the kinetics of the oxidation was faster with iodide than with bromide. Moreover, oxidation with iodide generates stiffer networks, suggesting that the interaction between the alginate and the polyphenol could be the cause of the reduced adhesion. (Figure Presented).

Original languageEnglish
Pages (from-to)1280-1289
Number of pages10
JournalMacromolecular Bioscience
Volume7
Issue number12
DOIs
StatePublished - 6 Dec 2007
Externally publishedYes

Keywords

  • Adhesion
  • Algal polymers
  • Quartz crystal microbalance (QCM) water-soluble polymers
  • SAXS
  • Self-assembly

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Biomaterials
  • Polymers and Plastics
  • Materials Chemistry

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