Characterization of Langmuir and Langmuir-Blodgett films of a thiomacrocyclic ionophore by surface pressure and AFM

J Colloid Interface Sci. 2006 Sep 15;301(2):585-93. doi: 10.1016/j.jcis.2006.05.047. Epub 2006 Jun 30.

Abstract

The new synthesized thiomacrocyclic ionophore 4-phenyl-4-sulfide-11-(1-oxodecyl)-1,7-dithia-11-aza-4-phosphacyclotetradecane has proven to form Langmuir and Langmuir-Blodgett (LB) films. This ionophore shows a large affinity for copper(II) ions. Thus, the influence of the subphase composition on the surface pressure-area isotherms has been studied. The LB films have been observed by AFM and the effect of the subphase composition and the deposition surface pressure on the LB films is discussed. AFM image morphology has been correlated to the ionophore molecular structure. Surface pressure-area isotherms and AFM images show that the presence of copper(II) ions has an important role in the film structure.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aluminum Silicates / chemistry
  • Copper / chemistry*
  • Heterocyclic Compounds, 2-Ring / chemistry*
  • Ionophores / chemistry*
  • Microscopy, Atomic Force
  • Models, Theoretical
  • Pressure
  • Surface Properties

Substances

  • 4-phenyl-4-sulfide-11-(1-oxodecyl)-1,7-dithia-11-aza-4-phosphacyclotetradecane
  • Aluminum Silicates
  • Heterocyclic Compounds, 2-Ring
  • Ionophores
  • Copper
  • mica