Water-network percolation transition in hydrated blue-green algae in vivo

We found that dc conductivity percolation process typical for low hydrated porous materials shows up in bulk viable blue-green algae, Arthrospira (Spirulina) platensis (strain Laporte 1963/M-132/2b) at unusually low hydrations, more than an order of magnitude lower than in, e.g., hydrated yeast [D....

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Bibliographic Details
Published in:Journal of non-crystalline solids 2007-12, Vol.353 (47-51), p.4541-4545
Main Authors: Sokolowska, D., Krol-Otwinowska, A., Bialecka, M., Fiedor, L., Szczygiel, M., Moscicki, J.K.
Format: Article
Language:English
Subjects:
Arthrospira
Biomaterials
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Conductivity
Cyanophyta
Dielectric loss and relaxation
Dielectric properties of solids and liquids
Dielectric properties, relaxation, electric modulus
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Exact sciences and technology
Hydration
Percolation
Permittivity (dielectric function)
Physics
Spirulina platensis
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Summary:We found that dc conductivity percolation process typical for low hydrated porous materials shows up in bulk viable blue-green algae, Arthrospira (Spirulina) platensis (strain Laporte 1963/M-132/2b) at unusually low hydrations, more than an order of magnitude lower than in, e.g., hydrated yeast [D. Sokolowska, A. Krol-Otwinowska, J.K. Moscicki, Phys. Rev. E 70 (2004) 052901]. The critical exponent is characteristic for two-dimensional network. Comparison with results for yeast and other similar materials shows that the hydration percolation threshold is a sensitive indicator of wettability of water accessible surface in porous bio- and abiotic materials.
ISSN:0022-3093
1873-4812
DOI:10.1016/j.jnoncrysol.2007.02.082