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Published on: October 1, 2014
Precise 3D Tracking of Highly Non-Planar Eukaryotic Flagellar Beating Patterns Using Digital Holographic Microscopy
Patryk Nienaltowski1,2, Jonasz Słomka1,3, Federica Miano4
1Institute of Environmental Engineering, ETH Zürich, Zürich, Switzerland.
Small Methods
|May 7, 2026
Summary
We developed holoV3C, a novel method for precise 3D tracking of eukaryotic flagella. This technique enables detailed analysis of flagellar movement, advancing our understanding of cellular motility and microorganism dynamics.
Area of Science:
- Biophysics
- Cell Biology
- Microscopy
Background:
- Accurate 3D tracking of eukaryotic flagella is crucial for understanding cellular motility.
- Existing methods struggle with precise reconstruction of highly non-planar flagellar beating patterns.
Purpose of the Study:
- To present holoV3C, a new method for label-free, high-resolution 3D tracking of eukaryotic flagella.
- To enable precise kinematic reconstruction of complex and non-planar flagellar movements.
Main Methods:
- Digital Holographic Microscopy (DHM) combined with phase anomaly detection.
- Computationally efficient algorithm for high temporal and axial resolution tracking.
- Validation using mouse sperm flagella and the protist Reclinomonas americana.
Main Results:
- Achieved 0.25 µm axial resolution for mouse sperm flagella and 53 nm for particles.
- Successfully reconstructed highly non-planar flagellar dynamics at 200 frames per second.
- Demonstrated label-free, high-resolution 3D tracking across large sampling volumes.
Conclusions:
- holoV3C provides precise, label-free 3D tracking of non-planar eukaryotic flagella.
- This method offers significant insights into flagellar dynamics and microorganism motility.
- Opens new research avenues in microbial ecology and cell function.
