Two-dimensional protonic percolation on lightly hydrated purple membrane

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Two-dimensional protonic percolation on lightly hydrated purple membrane.

The capacitance and dielectric loss factor were measured for a sample of purple membrane of Halobacterium halobium as a function of hydration level (0.017 to >0.2 g of water/g of membrane) and frequency (10 kHz to 10 MHz). The capacitance and the derived conductivity show explosive growth above a threshold hydration level, h(c) approximately 0.0456. The conductivity shows a deuterium isotope ef...

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ژورنال

عنوان ژورنال: Proceedings of the National Academy of Sciences

سال: 1988

ISSN: 0027-8424,1091-6490

DOI: 10.1073/pnas.85.23.9022