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Nature 202, 1221 (20 June 1964); doi:10.1038/2021221a0

Role of the Grotthuss Mechanism for Protonic and Electronic Transport in the Transmission of Impulses along Muscle Fibres


Arthur D. Little, Inc., 15 Acorn Park, Cambridge, Mass.

THE rate-determining step in the Grotthuss mechanism for protonic conduction in aqueous solution at ordinary pressures is the rotation of water molecules to assume the particular H-bonded mutual orientation necessary for the actual proton flip1. Our present work on the activation energy of protonic conduction in 0.10 M aqueous solution of hydrochloric acid in the 0°–10° C region has failed to disclose a maximum in this parameter at the temperature of maximum density in contrast to sea water2 and 0.10 M potassium chloride solutions3.

  1. Horne, R. A. , Myers, B. R. , and Frysinger, G. R. , J. Chem. Phys., 39, 2666 (1963). | Article | ISI | ChemPort |
  2. Horne, R. A. , and Courant, R. A. , J. Geophys. Res., 69, 1152 (1964). | ISI | ChemPort |
  3. Horne, R. A. , and Courant, R. A. , J. Phys. Chem. (in the press).
  4. Bratton, C. B. , Hopkins, A. L. , and Weinberg, J. W. , paper presented at the 1964 spring meeting, Amer. Phys. Soc., Washington, D.C.
  5. Horne, R. A. , J. Inorg. and Nucl. Chem., 25, 1139 (1963). | Article | ChemPort |
  6. Horne, R. A. , and Axelrod, E. H. , J. Chem. Phys., 40, 1518 (1964). | Article | ISI | ChemPort |

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