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Related Experiment Videos

Polymer coating for hemoperfusion over activated charcoal.

N Hasirci, G Akovali

    Journal of Biomedical Materials Research
    |September 1, 1986
    PubMed
    Summary
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    Plasma polymerization created a hexamethyldisiloxane coating on activated charcoal, improving its surface properties and reducing fine particle release. This novel coating enhances the performance of activated charcoal for various applications.

    Area of Science:

    • Materials Science
    • Surface Chemistry
    • Polymer Science

    Background:

    • Activated charcoal is widely used for adsorption.
    • Surface modification of activated charcoal can enhance its properties.
    • Polymeric coatings offer tunable surface characteristics.

    Purpose of the Study:

    • To apply a hexamethyldisiloxane (HDMSO) polymeric coat onto activated charcoal granules using plasma polymerization.
    • To characterize the surface chemical composition, coat thickness, and uniformity of the modified granules.
    • To evaluate the impact of the HDMSO coating on the absorptive capacity and fine particle release of activated charcoal.

    Main Methods:

    • Plasma polymerization of hexamethyldisiloxane (HDMSO) via glow discharge.
    • Surface analysis using Electron Spectroscopy for Chemical Analysis (ESCA).

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  • Morphological and topographical examination using Scanning Electron Microscopy (SEM).

    • Main Results:

    • Successful deposition of a uniform HDMSO polymeric coat on activated charcoal surfaces.
    • ESCA confirmed the presence and chemical nature of the HDMSO coating.
    • SEM revealed changes in surface topography due to the coating.
    • The coating demonstrated an effect on the absorptive capacity and reduced the release of fine particles.

    Conclusions:

    • Plasma polymerization is an effective method for coating activated charcoal with HDMSO.
    • The HDMSO coating modifies the surface properties of activated charcoal.
    • The modified activated charcoal exhibits potential for improved performance in applications requiring controlled adsorption and reduced particle shedding.