Wetting

Wetting is the ability of a liquid to spread over a solid surface. The degree of wetting is called wettability, and is determined by a force balance between the cohesive forces of the liquid and the adhesive forces between the surface and the liquid.

Latest Research and Reviews

  • Research
    | Open Access

    Wang et al. report an underwater capillary adhesive that is strengthened by the conjunction of inner water bridge and outer air shell, and switched timely by a small direct current voltage. The design can also be constructed on flexible tapes, which can be applied to non-conductive substrates.

    • Huanxi Zheng
    • , Jing Li
    •  & Zuankai Wang
  • Research
    | Open Access

    Elastic deformation of soft substrates occurs upon wetting, yet it is challenging to follow its dynamics at a microscale. Khattak et al. show that the force required to pull a droplet along a soft surface decreases monotonically as the film thickness decreases and explain the phenomenon using a scaling analysis.

    • Hamza K. Khattak
    • , Stefan Karpitschka
    •  & Kari Dalnoki-Veress
  • Research
    | Open Access

    Guided drop transport at high temperature is of great importance in various water and thermal management technologies. Here, authors report a steerable drop transport dictated by the drop boiling states on heated concentric microgroove arrays.

    • Cong Liu
    • , Chenguang Lu
    •  & Yahua Liu
  • Research
    | Open Access

    A uniform particle deposition is crucial for sensitive applications, such as sensors and electronics. Here, authors introduce a passive protocol to suppress the coffee-ring effect and form uniform films at micro- and nanoscales combining superhydrophilic substrate with a neutral-wetting low-roughness mold.

    • Hossein Zargartalebi
    • , S. Hossein Hejazi
    •  & Amir Sanati-Nezhad

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