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Updated: May 1, 2026
A Microfluidic Model of Biomimetically Breathing Pulmonary Acinar Airways
Published on: May 9, 2016
Modeling nanoparticle-alveolar epithelial cell interactions under breathing conditions using captive bubble
David Schürch1, Dimitri Vanhecke, Martin J D Clift
1Adolphe Merkle Institute, University of Fribourg , Fribourg, Switzerland.
This study introduces a dynamic breathing model for lung epithelial cells. Cellular uptake of gold nanoparticles increased significantly under simulated breathing conditions compared to static models.
Area of Science:
- Biomedical Engineering
- Cell Biology
- Nanotoxicology
Background:
- Lung epithelial barrier models have advanced, but static air-liquid interfaces are unrealistic.
- Breathing involves dynamic compression and expansion of the lung's air-liquid interface.
Purpose of the Study:
- To develop a dynamic cell culture model simulating breathing mechanics.
- To investigate nanoparticle-lung cell interactions under dynamic conditions.
Main Methods:
- Epithelial lung cells were integrated into a captive bubble surfactometer.
- The system allowed cyclical compression and expansion of the air-liquid interface, mimicking breathing.
Main Results:
- Cellular uptake of gold nanoparticles was significantly higher under dynamic (breathing) conditions.
- Static conditions showed lower nanoparticle uptake compared to dynamic conditions.
Conclusions:
- The dynamic captive bubble surfactometer accurately models breathing mechanics for lung epithelial cells.
- This model is valuable for studying nanoparticle interactions in the lung for nanomedicine and toxicology applications.
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