Controlled formation and mixing of two-dimensional fluids.
We introduce a novel technique for the controlled spreading and mixing of lipid monolayers from multilamellar precursors on surfaces covered by the hydrophobic epoxy resin SU-8. The lipid spreads as a monolayer as a result of the high surface tension between SU-8 and the aqueous environment. A micropatterned device with SU-8 lanes, injection pads, and mixing regions, surrounded by hydrophilic Au, was constructed to allow handling of lipid films and to achieve their mixing at controlled stoichiometry. Our findings offer a new approach to dynamic surface functionalization and decoration as well as surface-based catalysis and self-assembly.
Czolkos
Ilja
I
Department of Chemical and Biological Engineering, Chalmers University of Technology, 412 96 Göteborg, Sweden.
Erkan
Yavuz
Y
Dommersnes
Paul
P
Jesorka
Aldo
A
Orwar
Owe
O
D000327:Adsorption; D004852:Epoxy Compounds; D005229:Fatty Acids, Monounsaturated / Q000737:chemistry* / Q000493:pharmacokinetics; D010936:Plant Extracts / Q000737:chemistry* / Q000493:pharmacokinetics; D011108:Polymers; D000644:Quaternary Ammonium Compounds / Q000737:chemistry* / Q000493:pharmacokinetics; D013025:Glycine max
D004852:Epoxy Compounds; D005229:Fatty Acids, Monounsaturated; D010936:Plant Extracts; D011108:Polymers; D000644:Quaternary Ammonium Compounds; C520895:SU-8 compound; C070046:1,2-dioleoyloxy-3-(trimethylammonium)propane