Fluorescence property on solutions of zwitterionic surfactant tetradecylbetaine in the presence of macromolecules

Spectrochim Acta A Mol Biomol Spectrosc. 2000 Nov 1;56A(12):2431-7. doi: 10.1016/s1386-1425(00)00295-x.

Abstract

The fluorescence property of zwitterionic surfactant tetradecylbetaine (C14BE) solutions in the presence of polyvinylpyrrolidone (PVPk30 and PVPk90), or Xanthan (Xc) have been investigated by steady-state fluorescence probe. The intensity ratio of the first and third peaks (I1/I3) of the monomer and that of the excimer to monomer (Ie/Im), and the aggregation number of the aggregates have been monitored. The results showed that C14BE/PVP and C14BE/Xc interactions mostly occur at the micelle surface. The C14BE clusters or micelles are bound to macromolecule chains by electrostatic force for PVP and by hydrogen-bonding for Xc, respectively.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Betaine / analogs & derivatives*
  • Betaine / chemistry
  • Fluorescence
  • Polysaccharides, Bacterial / chemistry*
  • Povidone / analogs & derivatives
  • Povidone / chemistry
  • Solutions
  • Surface-Active Agents / chemistry*

Substances

  • Polysaccharides, Bacterial
  • Solutions
  • Surface-Active Agents
  • tetradecylbetaine
  • Betaine
  • Povidone
  • xanthan gum