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The adhesion and spreading of thrombocyte vesicles on electrode surfaces
Victor Agmo Hernández1, Juliane Niessen, Falk Harnisch
1Institut für Biochemie, Universität Greifswald, Felix-Hausdorff-Str. 4, D-17487, Greifswald, Germany.
Abstract:
The interaction of thrombocyte vesicles with the surface of metal electrodes, i.e., mercury, gold and gold electrodes modified with self assembled monolayers (SAM), was studied with the help of chronoamperometry, atomic force microscopy, and quartz crystal microbalance measurements. The experimental results show that the interaction of the thrombocyte vesicles with the surface of the electrodes depends on the hydrophobicity of the latter: whereas on very hydrophobic surfaces (mercury and gold functionalized with SAM) the thrombocyte vesicles disintegrate and form a monolayer of lipids, on the less hydrophobic gold surface a bilayer is formed. The chronoamperometric measurements indicate the possibility of future applications to probe membrane properties of thrombocytes.
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