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Updated: May 18, 2026
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Nanoscale Characterization of Liquid-Solid Interfaces by Coupling Cryo-Focused Ion Beam Milling with Scanning Electron Microscopy and Spectroscopy
Published on: July 14, 2022
Direct imaging of complex nano- to microscale interfaces involving solid, liquid, and gas phases
Konrad Rykaczewski1, Trevan Landin, Marlon L Walker
1Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. konrad.rykaczewski@nist.gov
ACS Nano
|October 2, 2012
Summary
Researchers developed a 3D imaging method to visualize liquid-solid interfaces at the nanoscale. This technique provides crucial data for understanding and designing surfaces with special wetting properties.
Area of Science:
- Materials Science
- Surface Science
- Nanotechnology
Background:
- Specialized surfaces with unique wetting properties are vital for repelling liquids, preventing biofilm/ice formation, and controlling clathrate hydrates.
- Understanding the nanoscale interfacial geometry between liquids and substrates is key to predicting and engineering these wetting behaviors.
Purpose of the Study:
- To introduce a novel 3D quantitative method for direct nanoscale visualization of liquid-solid interfaces.
- To enable precise characterization of interfacial geometry for surfaces with tailored wetting properties.
Main Methods:
- Employing cryostabilization to preserve delicate interfaces.
- Utilizing cryogenic focused ion beam milling for nanoscale sectioning.
- Integrating scanning electron microscopy (SEM) for high-resolution imaging.
Main Results:
- Achieved direct nano- to microscale imaging of complex fluidic interfaces.
- Obtained quantitative interfacial geometry data for water condensate on diverse surfaces (superhydrophilic, superhydrophobic, lubricant-impregnated).
- Demonstrated unprecedented nanoscale resolution in characterizing these interfaces.
Conclusions:
- The developed 3D imaging technique offers critical insights into interfacial phenomena.
- This method is essential for fundamental understanding and rational design of advanced wetting surfaces.
