Influence of Langmuir-Blodgett nanolayers on microbial adhesion

J. Telegdi, T. Rigó, J. Beczner, E. Kálmán

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Langmuir-Blodgett (LB) nanolayers of alkyl hydroxamic and phosphonic acids on glass, iron and copper surfaces were studied in the presence of different, corrosion relevant micro-organisms. The quality of monomolecular and multimolecular LB layers was characterised by dynamic contact angle measurement, atomic force microscopy and the sum frequency vibration technique. The inhibition efficiency of microbial adhesion and biofilm formation, which was analysed by the surface visualising technique, epifluorescence microscopy and microbiological methods, increased with layer thickness. There were some differences in the blocking activity of the two amphiphiles (octadecylphosphonic acid C18P and octadecanoyl hydroxamic acid C18N) applied in LB films. Their repellent activity did not differ in cooling water but, in the presence of Acidithiobacillus ferrooxidans, the C18N nanolayer inhibited the biofilm formation much better.

Original languageEnglish
Pages (from-to)107-112
Number of pages6
JournalSurface Engineering
Volume21
Issue number2
DOIs
Publication statusPublished - Apr 1 2005

Keywords

  • Acidithiobacillus ferrooxidans
  • Amphiphiles
  • Atomic force microscopy
  • Biofouling
  • Cooling water
  • Copper
  • Inhibition of microbial adhesion
  • Iron
  • Langmuir-blodgett layers
  • Octadecanoyl hydroxamic acid
  • Octadecyl phosphonic acid glass
  • Sulphate reducer bacteria

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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