Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Minimalist molecular model for nanopore selectivity.

Mauricio Carrillo-Tripp1, Humberto Saint-Martin, Iván Ortega-Blake

  • 1Facultad de Ciencias, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, 62210 Cuernavaca, Morelos, México.

Physical Review Letters
|November 5, 2004
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Quantum Chemical Topology Analysis of Covalent Interactions in the Hydration of F<sup>-</sup> along with the Zinc Finger of NPL4 and Its Application to the Delimitation of QM/MM Boundaries.

ACS omega·2026
Same author

Garlic-Derived Phytochemical Candidates Predicted to Disrupt SARS-CoV-2 RBD-ACE2 Binding and Inhibit Viral Entry.

Molecules (Basel, Switzerland)·2025
Same author

Amphotericin-A21 Induces Antineoplastic Effects through the Modulation of Apoptosis in Human Tumoral Cells.

Pharmacology·2025
Same author

Mycobacterium susceptibility to ivermectin by inhibition of eccD3, an ESX-3 secretion system component.

PLoS computational biology·2025
Same author

Effect of ergosterol or cholesterol on the morphology and dynamics of the POPC/sphingomyelin bilayer.

Biophysical chemistry·2025
Same author

Insights from a Genome-Wide Study of <i>Pantoea agglomerans</i> UADEC20: A Promising Strain for Phosphate Solubilization and Exopolysaccharides Production.

Current issues in molecular biology·2025

Larger hydrated potassium ions can pass through narrow nanopores more easily than smaller sodium ions. This occurs because potassium ions better maintain coordination by deforming their hydration shells within the pore.

Area of Science:

  • Physical Chemistry
  • Nanotechnology
  • Biophysics

Background:

  • Ion transport through nanopores is crucial for biological and synthetic systems.
  • Understanding ion selectivity in nanopores is key to developing advanced separation and sensing technologies.

Purpose of the Study:

  • To investigate the energetic cost of confining hydrated ions within narrow nanopores.
  • To explain the mechanism by which larger ions might traverse smaller pores more efficiently.

Main Methods:

  • Utilized a simplified theoretical model to simulate ion behavior in nanopores.
  • Analyzed the energetic cost associated with ion hydration shell distortion.

Main Results:

  • The energetic cost of confining a hydrated potassium ion in a narrow nanopore is less than that for a hydrated sodium ion.

Related Experiment Videos

  • Potassium ions exhibit greater hydration shell distortion, enabling better coordination within the pore.

    • Conclusions:

    • Larger hydrated ions can navigate narrow pores more readily due to favorable hydration shell deformation.
    • This mechanism offers a general explanation for ion selectivity in various nanoporous materials, independent of specific pore chemistry.