biostudies-literatureHokkanen MJAcademy of FinlandEuropean Research CouncilAalto University AScI/ELEC Thematic Research ProgrammeBusiness Finland Project TUTL-SDAMe2105130https://www.ebi.ac.uk/biostudies/studies/S-EPMC11468561biostudies-literatureUnknown33(42)Superhydrophobic coatings have extraordinary properties like self-cleaning and staying dry, and have recently appeared on industrial and consumer markets. The stochastic nature of the coating components and coating processes (e.g., spraying, painting) affects the uniformity of the water repellency across the coated substrate. The wetting properties of those coatings are typically quantified on macroscale using contact angle goniometry (CAG). Here, highly sensitive force-based methods, scanning droplet adhesion microscopy (SDAM), and micropipette force sensor (MFS), are used, to quantify the microscale heterogeneity in the wetting properties of stochastic superhydrophobic coatings with irregular surface topography that cannot be investigated by CAG. By mapping the wetting adhesion forces wiAdvanced materials (Deerfield Beach, Fla.)Force-Based Wetting Characterization of Stochastic Superhydrophobic Coatings at Nanonewton Sensitivity.PMC11468561272361725513-SuperRepelERC-2016-CoGl725513‐SuperRepelERC‐2016‐CoGl6798/31/2017309237Zhou QHokkanen MJVuckovac MRas RHABackholm MfalseForce-Based Wetting Characterization of Stochastic Superhydrophobic Coatings at Nanonewton Sensitivity.Superhydrophobic coatings have extraordinary properties like self-cleaning and staying dry, and have recently appeared on industrial and consumer markets. The stochastic nature of the coating components and coating processes (e.g., spraying, painting) affects the uniformity of the water repellency across the coated substrate. The wetting properties of those coatings are typically quantified on macroscale using contact angle goniometry (CAG). Here, highly sensitive force-based methods, scanning droplet adhesion microscopy (SDAM), and micropipette force sensor (MFS), are used, to quantify the microscale heterogeneity in the wetting properties of stochastic superhydrophobic coatings with irregular surface topography that cannot be investigated by CAG. By mapping the wetting adhesion forces wi2021-01-01T00:00:00Z2021 Oct2025-04-04T02:17:12.084Z2025-04-04T02:17:12.084ZS-EPMC114685613446900610.1002/adma.202105130