Two-component organogelators based on two L-amino acids: effect of combination of L-lysine with various L-amino acids on organogelation behavior

Langmuir. 2009 Aug 4;25(15):8579-85. doi: 10.1021/la8040924.

Abstract

A two-component organogelation system, consisting of Nepsilon-dodecyl-L-lysine esters (amine components) and N-dodecyl-L-amino acids (valine, phenylalanine, alanine, glycine, L-lysine) as acid components, was proposed, and its organogelation properties were investigated. The mixture of amine and acid components produced an organic salt compound through acid-base interactions, and it created a three-dimensional network by entangling self-assembled nanofibers through hydrogen bonding and van der Waals interactions, thus leading to the formation of organogels. The combination of Lys/Phe yielded rigid dodecane gel, and the gelators of Lys/ Lys yielded a thermally stable dodecane gel. The organogelation properties significantly depended on the combination of amine and acid components, and they could be controlled by the selection of suitable components.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amines / chemistry
  • Amino Acids / chemistry*
  • Chemistry / methods*
  • Gels*
  • Lysine / chemistry*
  • Microscopy, Electron, Scanning / methods
  • Microscopy, Electron, Transmission / methods
  • Models, Chemical
  • Organic Chemicals
  • Phenylalanine / chemistry
  • Solvents / chemistry
  • Spectroscopy, Fourier Transform Infrared
  • Stress, Mechanical
  • Temperature

Substances

  • Amines
  • Amino Acids
  • Gels
  • Organic Chemicals
  • Solvents
  • Phenylalanine
  • Lysine