Pheromone synthesis in a biomicroreactor coated with anti-adsorption polyelectrolyte multilayer

N.G. Dimov, Lourdes Munoz, Gerard Carot-Sans, M.L.P.M. Verhoeven, W.P. Bula, Gülistan Kocer, Angel Guerrero, Johannes G.E. Gardeniers

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)

Abstract

To prepare a biosynthetic module in an infochemical communication project, we designed a silicon/glass microreactor with anti-adsorption polyelectrolytemultilayer coating and immobilized alcohol acetyl transferase (atf), one of the key biosynthetic enzymes of the pheromone of Spodoptera littoralis, on agarose beads inside. The system reproduces the last step of the biosynthesis in which the precursor diene alcohol (Z,E)-9,11-tetradecadienol is transformed into the major component (Z,E)-9,11-tetradecadienyl acetate. The scope of this study was to analyze and implement a multilayer, anti-adsorption coating based on layer-by-layer deposition of polyethylenimine/dextransulfate sodium salt (PEI/DSS). The multilayers were composed of two PEI with molecular weights 750 and 1.2 kDa at pH 9.2 or 6.0. Growth, morphology, and stability of the layers were analyzed by ellipsometry and atomic force microscopy (AFM). The anti-adsorption functionality of the multilayer inside the microreactor was validated. The activity of His6-(atf) was measured by gas chromatography coupled to mass spectrometer (GC-MS).
Original languageEnglish
Pages (from-to)-
Number of pages12
JournalBiomicrofluidics
Volume5
Issue number034102
DOIs
Publication statusPublished - 2011

Keywords

  • IR-94152
  • METIS-277130

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