Summary
The electrical properties and the mechanism of the electrical conductivity of artificial bimolecular lipid membranes (BLM) have been investigated in the presence of iodine and iodide. It is shown that a model different from simple ion diffusion must be considered to account for the observations. On the basis of experimental results the following can be concluded:
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a)
each membrane-electrolyte interface behaves as a semiconductor electrochemical electrode,
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b)
the bulk membrane phase behaves as an electronic conductor, transferring the charge carriers generated by the electrode reactions,
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c)
the membrane can also serve as a matrix for certain components of the redox system present in the bathing solutions.
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This work was supported by a Research Grant EY 00241 of the National Eye Institute, and Contract ONR 2587 of the Office of Naval Research.
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Karvaly, B., Rosenberg, B., Pant, H.C. et al. Contribution to the electrochemistry of bimolecular lipid membranes. Biophysik 10, 199–212 (1973). https://doi.org/10.1007/BF01190579
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DOI: https://doi.org/10.1007/BF01190579