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

Single-molecule dynamics in a self-assembled 2D molecular sieve.

Guillaume Schull1, Ludovic Douillard, Céline Fiorini-Debuisschert

  • 1Service de Physique et Chimie des Surfaces et Interfaces, Commissariat à l'Energie Atomique, Centre de Saclay, Gif-sur-Yvette, France.

Nano Letters
|July 13, 2006
PubMed
Summary

Researchers created a 2D molecular sieve using self-assembled building blocks. This sieve allows real-time observation of guest molecule diffusion through thermally activated channeling in surface cavities.

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

Impacts of annealing on structural and photophysical properties of zinc phthalocyanine adsorbed on graphene.

Beilstein journal of nanotechnology·2026
Same author

Unexpected Self-Reactivity of a Pyridinium-Benzimidazolate Zwitterion Leading to a Novel Atropoisomeric Scaffold with Single-Component White Light Emission.

Organic letters·2026
Same author

Isotope Effect of Host Material on Device Stability of Thermally Activated Delayed Fluorescence Organic Light-Emitting Diodes.

Small science·2025
Same author

Design of Photomagnetic Ultra-Thin Films by Electrodeposition of Switchable Cyanide-Bridged Fe<sub>4</sub>Co<sub>4</sub> Complexes.

Small (Weinheim an der Bergstrasse, Germany)·2025
Same author

Electron Transport in Soft-Crystalline Thin Films of Perylene Diimide Substituted with Swallow-Tail Terminal Alkyl Chains.

The journal of physical chemistry. C, Nanomaterials and interfaces·2025
Same author

Single polyoxometalate-based nanoclusters characterized by infrared absorption nanospectroscopy.

Communications chemistry·2024

Area of Science:

  • Materials Science
  • Surface Chemistry
  • Nanotechnology

Background:

  • Two-dimensional materials offer unique properties for molecular separation.
  • Controlling molecular diffusion at the nanoscale is crucial for advanced applications.
  • Self-assembly at interfaces provides a versatile route for creating ordered structures.

Purpose of the Study:

  • To realize a functional two-dimensional molecular sieve.
  • To investigate the real-time dynamics of guest molecules within the sieve.
  • To elucidate the mechanism of guest molecule diffusion.

Main Methods:

  • Fabrication of a host matrix using molecularly engineered building blocks at the liquid-solid interface.
  • In situ observation of guest molecule dynamics using scanning tunneling microscopy (STM) under both liquid-solid interface and vacuum conditions.

Related Experiment Videos

  • Real-time, submolecular resolution imaging to track molecular movement.
  • Temperature-dependent studies to analyze diffusion kinetics.

    • Main Results:

    • Successful realization of a two-dimensional molecular sieve.
    • Observation of simultaneous size- and shape-dependent dynamics of different guest molecules.
    • Direct visualization of guest molecule diffusion within single-molecule surface cavities.
    • Evidence of thermally activated channeling as the primary diffusion mechanism.

    Conclusions:

    • The developed 2D molecular sieve enables precise control over guest molecule transport.
    • STM is a powerful tool for studying nanoscale dynamics in engineered materials.
    • Thermally activated channeling governs diffusion in these surface-confined systems.