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Spatial dissipative structures formed by spontaneous molecular aggregation at interfaces.

M Kagan, D Avnir

    Origins of Life
    |January 1, 1984
    PubMed
    Summary
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    Interfacial chemical reactions can form complex spatial patterns, crucial for early life's organization. These dissipative structures emerge at interfaces, driving molecular aggregation and structuring.

    Area of Science:

    • Chemical kinetics
    • Origins of life studies
    • Self-organization phenomena

    Background:

    • Interfacial processes and dissipative structures are hypothesized key players in pre-biotic evolution.
    • Their ability to induce aggregation and spatial structuring is critical for early life development.

    Purpose of the Study:

    • To highlight recent findings on interfacial chemical reactions forming dissipative spatial structures.
    • To present a broad collection of such reactions.

    Main Methods:

    • Investigated photochemical oxidations at liquid/air and liquid/liquid interfaces.
    • Examined gas/solution reactions.
    • Studied reactions occurring at membrane surfaces.

    Main Results:

    Related Experiment Videos

    • Identified three types of interfacial processes yielding dissipative spatial structures.
    • Demonstrated photochemical oxidations, gas/solution reactions, and membrane surface reactions as key examples.
    • Observed the development of macroscopic, far-from-equilibrium concentration patterns.

    Conclusions:

    • Interfacial chemical reactions are a significant source of dissipative structures.
    • These structures represent a major example of chemical networks forming macroscopic patterns.
    • The findings offer insights into self-organization mechanisms relevant to abiogenesis.