Pflügers Archiv

, Volume 401, Issue 4, pp 433–434 | Cite as

Channels in planar bilayers made from commercially available lipids

  • H. Gögelein
  • H. Koepsell
Transport Processes, Metabolism and Endocrinology; Kidney, Gastrointestinal Tract, and Exocrine Glands Letters and Notes


Planar bilayer membranes were made from commercially available lipids. With various lipids, originating from biological sources, such as egg yolk phosphatidylcholine, soybean phosphatidylcholine or bovine brain phosphatidylserine, spontaneously fluctuating channels could be observed. Spontaneous channel activity could not be observed in planar bilayers made from synthetic lipids, such as 1,2 diphytanoyl 3-sn-phosphatidylcholine. It is concluded that the observed channels are due to proteolipids, being present as impurities in the lipid material.

Key words

Planar lipid membranes commercially lipids monolayer self-assembly channels 


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Copyright information

© Springer-Verlag 1984

Authors and Affiliations

  • H. Gögelein
    • 1
  • H. Koepsell
    • 1
  1. 1.Max-Planck-Institut für BiophysikFrankfurt/Main 70Germany

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