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Related Experiment Video

Updated: May 10, 2026

Preparation of Light-responsive Membranes by a Combined Surface Grafting and Postmodification Process
12:00

Preparation of Light-responsive Membranes by a Combined Surface Grafting and Postmodification Process

Published on: March 21, 2014

Light-responsive caffeine transfer through porous polycarbonate.

Lukas Baumann, Damien de Courten, Martin Wolf

    ACS Applied Materials & Interfaces
    |June 25, 2013
    PubMed
    Summary
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    Light-responsive membranes functionalized with spirobenzopyran polymers exhibit significantly enhanced caffeine transport under UV light. This innovation offers a novel approach for controlled release applications using smart materials.

    Area of Science:

    • Materials Science
    • Polymer Chemistry
    • Surface Engineering

    Background:

    • Development of stimuli-responsive membranes for controlled transport.
    • Utilizing porous polycarbonate (PC) as a robust matrix.
    • Surface functionalization via plasma-induced graft polymerization.

    Discussion:

    • Investigating the mechanism of light-induced changes in membrane permeability.
    • Quantifying the impact of spirobenzopyran (SP) incorporation on mass transfer.
    • Comparing membrane performance under UV irradiation versus ambient light.

    Key Insights:

    • Achieved up to an eightfold increase in caffeine mass transfer rates under UV light compared to daylight.
    • Demonstrated effective surface modification of PC membranes with SP-containing polymers.

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    Last Updated: May 10, 2026

    Preparation of Light-responsive Membranes by a Combined Surface Grafting and Postmodification Process
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    Preparation of Light-responsive Membranes by a Combined Surface Grafting and Postmodification Process

    Published on: March 21, 2014

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  • Established a correlation between light stimuli and enhanced membrane transport properties.

    • Outlook:

    • Potential applications in smart drug delivery systems and controlled release technologies.
    • Further exploration of different photo-responsive polymers and matrix materials.
    • Optimization of plasma polymerization parameters for tailored membrane performance.