The Journal of Membrane Biology

, Volume 28, Issue 1, pp 181–186

Diffusion and 1/f noise


  • Michael E. Green
    • Department of ChemistryCity University of New York, City College

DOI: 10.1007/BF01869696

Cite this article as:
Green, M.E. J. Membrain Biol. (1976) 28: 181. doi:10.1007/BF01869696


The noise associated with ion transport through porous membranes is considered as a diffusion process. This is confirmed experimentally by measuring the noise spectra associated with pores of known dimension. It is then shown that one dimensional diffusion through pores of variable length can produce approximate 1/f noise spectra, if the distribution of lengths is proportional to (length)−1.

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© Springer-Verlag New York Inc. 1976