Horizontal bilayer for electrical and optical recordings

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Philipp Bartsch - , University Osnabruck (Author)
  • Claudius Walter - , University Osnabruck (Author)
  • Philipp Selenschik - , University Osnabruck (Author)
  • Alf Honigmann - , University Osnabruck, Max Planck Institute for Biophysical Chemistry (Karl Friedrich Bonhoeffer Institute) (Author)
  • Richard Wagner - , University Osnabruck (Author)

Abstract

Artificial bilayer containing reconstituted ion channels, transporters and pumps serve as a well-defined model system for electrophysiological investigations of membrane protein structure-function relationship. Appropriately constructed microchips containing horizontally oriented bilayers with easy solution access to both sides provide, in addition, the possibility to investigate these model bilayer membranes and the membrane proteins therein with high resolution fluorescence techniques up to the single-molecule level. Here, we describe a bilayer microchip system in which long-term stable horizontal free-standing and hydrogel-supported bilayers can be formed and demonstrate its prospects particularly for single-molecule fluorescence spectroscopy and high resolution fluorescence microscopy in probing the physicochemical properties like phase behavior of the bilayer-forming lipids, as well as in functional studies of membrane proteins.

Details

Original languageEnglish
Pages (from-to)2705-2730
Number of pages26
JournalMaterials
Volume5
Issue number12
Publication statusPublished - 2012
Peer-reviewedYes
Externally publishedYes

External IDs

ORCID /0000-0003-0475-3790/work/161889564

Keywords

ASJC Scopus subject areas

Keywords

  • Horizontal bilayer, Lipid diffusion, Membrane dynamics, Simultaneous electrical-optical recordings, Supported bilayer