Abstract
The adsorption of poly-L-lysine of different conformation (α-helix, β-sheet and random coil) at the water/dodecane interface has been studied by interfacial tension measurements using the drop volume method. The experimental adsorption isotherms provide information about a critical aggregation concentration, the maximum interfacial tension depressionΔγmax and the minimum area A occupied by adsorbed molecules at the interface. Differences inΔγmax exist between α-helix and β-sheet and, moreover, in the area values between random-coil on the one side and α-helix and β-sheet on the other hand.
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Hermel, H., Miller, R. Effect of the secondary structure of poly-L-lysine on the adsorption at the water/dodecane interface. Colloid Polym Sci 273, 387–391 (1995). https://doi.org/10.1007/BF00652354
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DOI: https://doi.org/10.1007/BF00652354