Dynamical behavior of lipid bilayer membranes for taste substances under random membrane-potential fluctuations.
The dynamical behavior of the lipid bilayer membranes was experimentally studied under superposition of random or periodic membrane-potential fluctuations. The analysis of the mutual information has revealed that, in less than 10 Hz of random fluctuations, each of the time series of the mutual information of the transmembrane current for the five chemical substances (taste substances) has its inherent pattern, but not in a periodic fluctuation. On the other hand, the analysis of the power spectrum of the frequency could not distinguish those five basic taste substances in both random and periodic fluctuations. We provide the new detection idea of chemical substances by random fluctuations.
Yoshimoto
Minoru
M
Department of Bioengineering, Faculty of Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan. myoshi@be.kagoshima-u.ac.jp
Nishikanbara
Makoto
M
Nomoto
Mitsuru
M
Kurosawa
Shigeru
S
D004563:Electrochemistry; D004566:Electrodes; D008051:Lipid Bilayers; D008564:Membrane Potentials / Q000502:physiology; D008954:Models, Biological; D010539:Permeability; D013649:Taste / Q000502:physiology*; D013997:Time Factors
D008051:Lipid Bilayers