Gravity effects on biological systems.

A Schatz; R Reitstetter; W Briegleb; A Linke-Hommes

doi:10.1016/0273-1177(92)90263-w

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PubMed · 11536988

Gravity effects on biological systems.

A Schatz·R Reitstetter·W Briegleb·A Linke-Hommes

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Abstract

Theoretical investigations of the membrane-solution interface predict different effects of gravity on vertically and horizontally oriented planar membranes. Single channel events of gramicidin incorporated into phosphatidylserine planar bilayer membranes were measured in 0.1 M KCl solution, pH 7, at room temperature. The potential difference across the membrane was set to +/- 70 mV. The mean channel current was observed to be about 20% higher in horizontally oriented membranes compared to vertical membranes. This is in good agreement with the theoretical considerations and demonstrates that gravity does affect membrane processes by interaction with the membrane-solution interface which is a ubiquitous structure in biological systems.

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Animals Cell Membrane Gramicidin Gravitation Humans Ion Channels Lipid Bilayers Membrane Potentials Models, Biological Phosphatidylserines Journal Article

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A Schatz, R Reitstetter, W Briegleb, A Linke-Hommes. 1992. Gravity effects on biological systems.. https://doi.org/10.1016/0273-1177(92)90263-w

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