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Showing 1–7 of 7 results
Advanced filters: Author: Matilda Backholm Clear advanced filters

  • The physics of swimming at the mesoscale, where nonlinear and time-dependent fluid mechanics prevail, remains poorly understood. Here, the authors use a micropipette force sensor and deep neural network–based image analysis to reveal how Artemia enhances propulsion, establishing a universal force-based scaling law that informs future biomimetic meso-robot designs.

    • R. A. Lara
    • N. Sharadhi
    • M. Backholm
    ResearchOpen Access
    Communications Physics
    P: 1-11

  • Surface heterogeneity is generally acknowledged as the major cause of liquid–solid friction, affecting whether droplets slide off the surface or stick to it. Now, a model surface of self-assembled monolayers has been used to investigate how molecular-scale surface heterogeneity affects water contact angle hysteresis and contact line friction. The high-coverage hydrophobic surface is slippery, as—counter-intuitively—is the low-coverage hydrophilic surface.

    • Sakari Lepikko
    • Ygor Morais Jaques
    • Robin H. A. Ras
    ResearchOpen Access
    Nature Chemistry
    Volume: 16, P: 506-513

  • Trapped films of air known as plastrons are promising for underwater engineering but typically have short lifetimes. Here, aerophilic titanium alloy surfaces are developed with thermodynamically stabilized plastrons for antifouling applications.

    • Alexander B. Tesler
    • Stefan Kolle
    • Wolfgang H. Goldmann
    Research
    Nature Materials
    Volume: 22, P: 1548-1555

  • Hydrophobic coatings are increasingly important in modern technology, but hard to study in the extreme non-wetting limit. Here, micropipette force sensors can directly measure nN-scale friction forces and, combined with particle image velocimetry, reveal pure rolling dynamics of slow water droplets.

    • Matilda Backholm
    • Daniel Molpeceres
    • Robin H. A. Ras
    ResearchOpen Access
    Communications Materials
    Volume: 1, P: 1-8

  • Surface wetting describes the interaction between a solid surface and a liquid droplet, the dynamics of which govern the performance of functional surfaces for nanoscience and industrial applications. Here, the authors review how a combination of new surface characterization techniques allows the probing of surface wettability in greater detail compared to conventional methods (e.g., contact angle measurement).

    • Dan Daniel
    • Maja Vuckovac
    • Robin H. A. Ras
    ReviewsOpen Access
    Communications Physics
    Volume: 6, P: 1-15