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Letters to Nature
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

R. A. HORNE

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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