Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Contact Angle

Contact Angle

When a solid is dipped inside a liquid, the liquid surface becomes curved near the contact. For some solid–liquid interfaces, the liquid is pulled up along the solid, while for others, the liquid surface is convex or depressed near the solid surface. This phenomenon can be explained using the concept of cohesive and adhesive forces.
The adhesive force is the molecular force between molecules of different materials, that is, between the molecules of the solid and the liquid. The cohesive...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Neonicotinoid insecticides induced neurotoxicity in SH-SY5Y cells via oxidative stress and mitochondrial dysfunction.

Journal of hazardous materials·2026

Same author

Integrating machine learning and metabolomics to identify PFAS-associated metabolic alterations related to lung cancer risk.

Environment international·2026

Same author

Temperature rise mechanism and loss model analysis in a MEMS micro traveling-wave motor.

Ultrasonics·2026

Same author

TPP-Fabricated All-Fiber Nanoforce Sensor with Deep Learning Analysis Enables Ultrasensitive Cancer Cell Mechanophenotyping.

Analytical chemistry·2026

Same author

Based on oxidative stress of dinotefuran in SH-SY5Y cells: Chirality in energy metabolism.

Journal of environmental sciences (China)·2026

Same author

Environmental occurrence of amantadine and rimantadine in aquaculture pond sediments: application of a newly developed LC-MS/MS method.

Environmental monitoring and assessment·2026

Search research articles

Related Experiment Video

Updated: Jan 14, 2026

Surface Properties of Synthesized Nanoporous Carbon and Silica Matrices

Surface Properties of Synthesized Nanoporous Carbon and Silica Matrices

Published on: March 27, 2019

Neural Network Prediction of Micrometer-Scale Equivalent Contact Angle Mapping: From Microforce Measurements to Local

Shiyu Zhang¹, Lingzhe Zhao¹, Lingkun Han¹

¹State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China.

ACS Applied Materials & Interfaces

|October 20, 2025

Summary

Researchers developed a new method combining adhesion force measurements and neural networks to map microscopic wettability variations on superhydrophobic surfaces. This technique provides a detailed understanding of surface properties at the micrometer scale.

Keywords:

equivalent contact angle micrometer scale neural networks superhydrophobic surfaces wettability

More Related Videos

Atomic Force Microscopy Cantilever-Based Nanoindentation: Mechanical Property Measurements at the Nanoscale in Air and Fluid

Atomic Force Microscopy Cantilever-Based Nanoindentation: Mechanical Property Measurements at the Nanoscale in Air and Fluid

Published on: December 2, 2022

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy

Published on: July 18, 2014

Related Experiment Videos

Last Updated: Jan 14, 2026

Surface Properties of Synthesized Nanoporous Carbon and Silica Matrices

Surface Properties of Synthesized Nanoporous Carbon and Silica Matrices

Published on: March 27, 2019

Atomic Force Microscopy Cantilever-Based Nanoindentation: Mechanical Property Measurements at the Nanoscale in Air and Fluid

Atomic Force Microscopy Cantilever-Based Nanoindentation: Mechanical Property Measurements at the Nanoscale in Air and Fluid

Published on: December 2, 2022

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy

Published on: July 18, 2014

Area of Science:

Materials Science
Surface Science
Nanotechnology

Background:

Superhydrophobic surfaces exhibit microscopic structural heterogeneity.
This heterogeneity can cause variations in wettability at the micrometer scale.
Traditional methods lack the resolution to characterize these microscopic variations.

Purpose of the Study:

To develop a high-resolution method for assessing wettability variations on superhydrophobic surfaces.
To create a micrometer-scale equivalent contact angle distribution map.
To validate the universality of the proposed method across different microstructures.

Main Methods:

Utilized the droplet cantilever probe technique to measure interaction forces between droplets and superhydrophobic surfaces.
Developed and trained a neural network model using experimental adhesion force data.
Employed a force-neural network fusion method (F-NNFM) for quantitative wettability assessment.

Main Results:

Generated micrometer-scale equivalent contact angle distribution maps with a spatial resolution of 5 μm.
Achieved accurate nonlinear mapping between adhesion force and macroscopic contact angle (R > 0.9, errors <5°).
Demonstrated the method's effectiveness on surfaces with varying microstructures.

Conclusions:

The F-NNFM accurately reveals microscopic wettability variations and states on superhydrophobic surfaces.
This approach extends macroscopic wetting state characterization to the microscopic scale.
The developed method offers a significant advancement over traditional wettability characterization techniques.