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Related Experiment Video

Updated: May 29, 2026

Fine-tuning the Size and Minimizing the Noise of Solid-state Nanopores
09:43

Fine-tuning the Size and Minimizing the Noise of Solid-state Nanopores

Published on: October 31, 2013

Gyroid nanoporous membranes with tunable permeability.

Li Li1, Lars Schulte, Lydia D Clausen

  • 1Danish Polymer Centre, Department of Chemical and Biochemical Engineering, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark.

ACS Nano
|August 27, 2011
PubMed
Summary

We developed novel gyroid nanoporous membranes from cross-linked 1,2-polybutadiene (1,2-PB) with tunable surface properties and permeability for precise molecular separations.

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Area of Science:

  • Materials Science
  • Chemical Engineering
  • Nanotechnology

Background:

  • Ultrafiltration membrane performance relies on controlled morphology and chemistry.
  • Existing membranes often lack precise control over pore structure and surface properties.

Purpose of the Study:

  • To investigate diffusion permeability through novel gyroid nanoporous cross-linked 1,2-polybutadiene (1,2-PB) membranes.
  • To explore the impact of surface modifications (skin vs. nonskin) on membrane permeability.
  • To evaluate the selectivity of these membranes for various biomolecules.

Main Methods:

  • Fabrication of gyroid nanoporous 1,2-PB membranes with tunable surface properties.
  • Surface characterization using scanning electron microscopy, contact angle measurements, and X-ray photoelectron spectroscopy.

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Membrane Transport Processes Analyzed by a Highly Parallel Nanopore Chip System at Single Protein Resolution
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Membrane Transport Processes Analyzed by a Highly Parallel Nanopore Chip System at Single Protein Resolution

Published on: August 16, 2016

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Last Updated: May 29, 2026

Fine-tuning the Size and Minimizing the Noise of Solid-state Nanopores
09:43

Fine-tuning the Size and Minimizing the Noise of Solid-state Nanopores

Published on: October 31, 2013

Membrane Transport Processes Analyzed by a Highly Parallel Nanopore Chip System at Single Protein Resolution
11:55

Membrane Transport Processes Analyzed by a Highly Parallel Nanopore Chip System at Single Protein Resolution

Published on: August 16, 2016

  • Diffusion permeability measurements for glucose, antibiotics, proteins, and biomolecules.

    • Main Results:

    • Effective diffusion coefficient of glucose varied significantly with surface structure (nonskin, one-sided skin, two-sided skin).
    • Flux through two-sided skin membranes increased with thickness, deviating from simple models.
    • A new model was proposed and validated by flow visualization experiments.
    • Membrane selectivity was demonstrated for a range of biomolecules, indicating hindered diffusion.

    Conclusions:

    • Gyroid nanoporous 1,2-PB membranes offer unique advantages including uniform morphology, isotropic percolation, and tunable permeability.
    • Controlled surface chemistry allows for tailored interactions with aqueous solutions, impacting permeability.
    • These membranes represent a distinct platform for advanced separations with potential applications in biomolecule purification.