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Adhesion in the biologic environment.

R E Baier

    Biomaterials, Medical Devices, and Artificial Organs
    |January 1, 1984
    PubMed
    Summary

    Surface energy modification effectively controls biological adhesion in wet, active environments. This principle is proven by artificial hearts, demonstrating broad applications in preventing clot formation.

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    Area of Science:

    • Biomaterials Science
    • Surface Chemistry
    • Bioengineering

    Background:

    • Particulate matter adhesion in wet, active environments often follows predictable patterns.
    • Surface properties, particularly surface energy, significantly influence biological adhesion.
    • Long-term implantation of artificial hearts demonstrates the utility of surface energy modification.

    Purpose of the Study:

    • To present a unifying concept for biological adhesion across diverse environments.
    • To highlight the role of surface energy in controlling adhesion.
    • To demonstrate the bioengineering utility of surface modification.

    Main Methods:

    • Review of initial events in blood contact with foreign surfaces.
    • Comparison of blood adhesion with oceanic fouling, cell culture, and dental plaque formation.
    • Application of the critical surface tension concept.

    Main Results:

    • Demonstrated similarities between blood adhesion and other biological adhesion phenomena.
    • Highlighted the effectiveness of surface energy control in preventing adverse biological adhesion.
    • Provided evidence from total artificial hearts, intra-aortic balloons, and left ventricular assist devices.

    Conclusions:

    • Biological adhesion in various wet, active environments shares common features.
    • Controlling surface free energy via critical surface tension offers a unifying explanation.
    • Surface energy modification is a key strategy for managing biological adhesion in medical devices and other applications.

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