SPECTRAL ANALYSIS OF CURRENT-NOISE DATA FOR BILAYER LIPID MEMBRANE

Dipankar Ghosh (), Sharmila de () and Papiya Nandy ()
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Dipankar Ghosh: Physics Department, St. Joseph's College, Darjeeling-734104, India
Sharmila de: Physics Department, Dinabandhu Mahavidyalaya, Bongaon-743235, India
Papiya Nandy: Physics Department, Jadavpur University, Kolkata-700032, India

International Journal of Modern Physics C (IJMPC), 2008, vol. 19, issue 07, 1007-1015

Abstract: We report the spectral analysis of current-noise data obtained under voltage clamp condition in bilayer lipid membrane, using Lomb Scargle Periodogram. Such spectral analysis shows evidence of crossover from an uncorrelated phenomenon towards a state of long range correlation in time and space with the increase of applied bias. Based on these observations a probable mechanism of transmembrane charge conduction has been outlined in the light of self-organized criticality.

Keywords: Spectral analysis; self-organized criticality; Lomb Scargle Periodogram; bilayer lipid membrane; 05.45.Tp; 05.40.Ca; 89.75.-k; 89.75.Da; 87.16.Dg (search for similar items in EconPapers)
Date: 2008
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DOI: 10.1142/S0129183108012704

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