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Issue 20, 2019
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Influence of surface topography attributes on settlement and adhesion of natural and synthetic species

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Abstract

Surface topographies of various sizes, shapes, and spatial organization abound in nature. They endow properties such as super-hydrophobicity, reversible adhesion, anti-fouling, self-cleaning, anti-glare, and anti-bacterial, just to mention a few. Researchers have long attempted to replicate these structures to create artificial surfaces with the functionalities found in nature. In this review, we decompose the attributes of surface topographies into their constituents, namely feature dimensions, geometry, and stiffness, and examine how they contribute (individually or collectively) to settlement and adhesion of natural organisms and synthetic particles on the surface. The size of features that comprise the topography affects the contact area between the particle and surface as well as its adhesion and contributes to the observed adsorptive properties of the surface. The geometry of surface perturbations can also affect the contact area and gives rise to anisotropic particle settlement. Surface topography also affects the local stiffness of the surface and governs the adhesion strength on the surface. Overall, systematically studying attributes of surface topography and elucidating how each of them affects adhesion and settlement of particles will facilitate the design of topographically-corrugated surfaces with desired adsorption characteristics.

Graphical abstract: Influence of surface topography attributes on settlement and adhesion of natural and synthetic species

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Publication details

The article was received on 14 Mar 2019, accepted on 24 Apr 2019 and first published on 26 Apr 2019


Article type: Perspective
DOI: 10.1039/C9SM00527G
Soft Matter, 2019,15, 4045-4067

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    Influence of surface topography attributes on settlement and adhesion of natural and synthetic species

    S. Erramilli and J. Genzer, Soft Matter, 2019, 15, 4045
    DOI: 10.1039/C9SM00527G

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