Membrane, action, and oscillatory potentials in simulated protocells

  title={Membrane, action, and oscillatory potentials in simulated protocells},
  author={Aleksander T. Przybylski and Wilford P. Stratten and Robert M. Syren and Sidney W. Fox},
Electrical membrane potentials, oscillations, and action potentials are observed in proteinoid microspheres impaled with (3 M KCl) microelectrodes. Although effects are of greater magnitude when the vesicles contain glycerol and natural or synthetic lecithin, the results in the purely synthetic thermal protein structures are substantial, attaining 20 mV amplitude in some cases. The results add the property of electrical potential to the other known properties of proteinoid microspheres, in… Expand
Spontaneous random potential spike induction across a nonliving separator intervening two aqueous solutions and the implication of its physiological meaning
Membrane theory attributes the cause of action potential generation to the ion transport across the plasma membrane. It even states that the action potential generation is a unique phenomenon in theExpand
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It is demonstrated that an idealized description of an interface near phase transition captures many properties of acoustic pulses in lipid monolayers, as well as action potentials in living cells, suggesting that crucial functional information of the cell may be overlooked by focusing only on electrical measurements. Expand
Membrane potential generation without ion transport
Current view about cell is that the cell is a watery solution coated with semi-permeable membrane and there exists nonzero potential, so-called membrane potential, across the semi-permeable cellExpand
Concept of the origin of protomembranes
  • A. Przybylski
  • Chemistry
  • Origins of life and evolution of the biosphere
  • 2006
A conceptual approach to the origin of the membrane is outlined. Except for viruses, generally considered to be retrograde living forms, all organisms are cellular structures. The protocell,Expand
Towards proteinoid computers
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Ling’s Adsorption Theory as a Mechanism of Membrane Potential Generation Observed in Both Living and Nonliving Systems
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Self-sequencing of amino acids and origins of polyfunctional protocells
  • S. Fox
  • Biology, Medicine
  • Origins of life
  • 2004
In this paper are reviewed briefly the phenomenon of self-sequencing of amino acids, its relationship to evolutionary processes, other significance of such self-ordering, and the experimental evidence for original polyfunctional protocells. Expand


Electrical membrane phenomena in spherules from proteinoid and lecithin.
Spontaneous and induced electrical phenomena resembling membrane and action potentials in natural excitable cells have been observed in artificial cells. These artificial cells were made from thermalExpand
Suggested CitationNachmansohn, David ; Neumann, Eberhard (1974) Properties and function of proteins inexcitable membranes : an integral model of nerve excitability. Annals of the New YorkAcademy ofExpand
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Catalytic Activities of Thermally Prepared Poly-α-Amino Acids: Effect of Aging
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