Self-assembled amphiphilic bilayers of surfactant Brij-52 on gold electrodesстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The self-assembling of the uncharged nonionic surfractant Brij-52 on gold electrodes is reported. The resulting amphiphilic layers are characterized by means of impedance spectroscopy. Self-assembled Brij-52 layers have uniform structure and contain only a minor number of defects. The capacitance of optimal Brij-52 membrane calculated from the whole impedance spectrum rather than at certain frequency, is 1.0 +/- 0.4 mu Phi cm(-2), which is close to the capacitance of the lipid bilayer which separates the two aqueous phases, indicating that the self-assembling of Brij-52 resulted in formation of its bilayer on the gold electrode surface. The uniform bilayers of Brij-52 on gold support are stable, in contrast to lipids, which provide the opportunity of their application for analytical purposes. The possibility of using supported Brij-52 layers in affinity sensors is discussed.