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  • 1

    Article

    Measurements of the Size and Correlations Between Ions Using an Electrolytic Point Contact
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    Author(s):
    Jae Hyun Park, Eamonn Kennedy, Mohammad Hokmabadi, Lisa Almonte-Garcia, Li Ding, Narayana Aluru, Gregory Timp
    Abstract:

    The size of an ion affects everything from the structure of water to life itself. In this report, to gauge their size, ions dissolved in water are forced electrically through a sub-nanometer- diameter pore spanning a thin membrane and the current is measured. The measurements reveal an ion-selective conductance that vanishes in pores <0.24 nm in diameter—the size of a water molecule—indicating that permeating ions have a grossly distorted hydration shell. Analysis of the current noise powe…

    Date Published:
    2019-05
  • 2

    Article

    Measurements of the Size and Correlations Between Ions using an Electrolytic Point Contact
    Thumbnail
    Author(s):
    Zhuxin Dong, Jae Hyde Park, Eamonn Kennedy, Mohammad Hokmabadi, Lisa Almonte-Garcia, Li Ding, Narayana Aluru, Gregory Timp
    Abstract:

    The size of an ion affects everything from the structure of water to life itself. In this report, to gauge their size, ions dissolved in water are forced electrically through a sub-nanometer- diameter pore spanning a thin membrane and the current is measured. The measurements reveal an ion-selective conductance that vanishes in pores <0.24 nm in diameter—the size of a water molecule—indicating that permeating ions have a grossly distorted hydration shell. Analysis of the current noise powe…

    Date Published:
    2019-05
  • 3

    Article

    Measurements of the size and correlations between ions using an electrolytic point contact
    Thumbnail
    Author(s):
    Eveline Rigo, Zhuzin Dong, Jae Hyun Park, Eamonn Kennedy, Mohammad Hokmabadi, Lisa Almonte-Garcia, Li Ding, Narayana Aluru, Gregory Timp
    Abstract:

    The size of an ion affects everything from the structure of water to life itself. In this report, to gauge their size, ions dissolved in water are forced electrically through a sub-nanometer- diameter pore spanning a thin membrane and the current is measured. The measurements reveal an ion-selective conductance that vanishes in pores <0.24 nm in diameter—the size of a water molecule—indicating that permeating ions have a grossly distorted hydration shell. Analysis of the current noise powe…

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