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Related Experiment Video

Updated: Jun 27, 2026

Imaging and Quantification of the Area of Fast-Moving Microbubbles Using a High-Speed Camera and Image Analysis

Imaging and Quantification of the Area of Fast-Moving Microbubbles Using a High-Speed Camera and Image Analysis

Published on: September 5, 2020

Imaging Single H₂ Nanobubbles Using Off-Axis Dark-Field Microscopy.

Milomir Suvira¹, Ananya Ahuja¹, Pascal Lovre¹

¹Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States.

Analytical Chemistry

|October 18, 2023

Summary

Researchers developed a new microscopy technique to observe hydrogen nanobubbles forming on nanoelectrodes. This method offers unprecedented insights into nanobubble dynamics and electrochemical processes.

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Last Updated: Jun 27, 2026

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Published on: June 12, 2021

Area of Science:

Electrochemistry
Surface Science
Nanotechnology

Background:

Understanding electrochemically generated surface nanobubbles is crucial for many applications.
Detailed physicochemical descriptions of these nanobubbles are lacking.
Existing methods struggle to capture dynamic nanobubble behavior.

Purpose of the Study:

To develop and utilize an advanced imaging tool for observing single hydrogen nanobubbles.
To probe the dynamic processes of nanobubble generation and dissolution at the nanoscale.
To gain novel insights into nanobubble nucleation and behavior on nanoelectrodes.

Main Methods:

Development of an off-axis, dark-field microscopy imaging tool.
Utilizing a modified light path to minimize background interference.
Correlating electrochemical measurements with optical imaging of nanobubbles and nanoelectrodes.

Main Results:

Successfully imaged single hydrogen nanobubbles on a carbon nanoelectrode surface.
Observed dynamic processes of nanobubble nucleation and dissolution in real-time.
Enabled visualization of nanoelectrodes and nearby metal nanoparticles.

Conclusions:

The developed microscopy technique provides a powerful new approach for studying surface nanobubbles.
Correlated electrochemical and optical data offer unprecedented insights into nanobubble dynamics.
This work advances the understanding of nanoscale phenomena in electrochemical systems.