Detection of Protonic Percolation on Hydrated Lysozyme Powders

  • G. Careri
  • A. Giansanti
  • J. Rupley
Part of the Ettore Majorana International Science Series book series (EMISS, volume 46)


Powders of the protein Lysozyme at low hydration display proton conductivity. The conduction process follows the percolation 2D model for both the critical water fractional coverage of the macromolecule surface and the critical exponent. This critical hydration threshold is close to the onset of the catalytic activity. We view the proton conduction as a proton transfer process along threads of Hydrogen bonded water molecules.


Critical Exponent Percolation Threshold Proton Conduction Hydration Level Proton Transfer Process 
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Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • G. Careri
    • 1
  • A. Giansanti
    • 1
  • J. Rupley
    • 2
  1. 1.Dipartimento di FisicaUniversità di Roma IRomaItaly
  2. 2.University Department of Biochemistry Biological Sciences WestUniversity of ArizonaTucsonUSA

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