Summary
The dark resistance and capacitance of oxidised cholesterol Black Lipid Membrane was measured in presense of acidic and basic dyes. The resistance of the membrane decreases almost 10-fold while the capacitance increases with increasing concentration of dyes. The results have been interpreted in terms of solubilization of the dyes by the Black Lipid Membrane. Exposure of the BLMs containing dyes to visible light filtered through 5 % CuSO4 solution, produced trans membrane emf. These photo-emfs are attributed to the production of charge carriers and their subsequent separation. Similarities between the dye modified BLMs and dye coated electrodes have been noted.
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These investigations were supported by grants from the U.S. National Institutes of Health and the Office of Saline Water.
The author is thankful to Professor Dr. H. T. Tien for his helpful suggestions during this work.
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Veema, S.P. Photo-sensitivity of oxidised cholesterol black lipid membrane incorporated with acid and basic dyes. Biophysik 7, 228–235 (1971). https://doi.org/10.1007/BF01190730
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DOI: https://doi.org/10.1007/BF01190730