Impact of Physiological Strain on Lung Epithelial Cells Exposed to Aerosolised Particles

Published in Frontiers in Bioengineering and Biotechnology (2026) · Frontiers Media · Open access, CC BY
DOI: 10.3389/fbioe.2026.1846147

Summary

To understand how inhaled particles harm the deep lung, an in vitro model has to reproduce not only the tissue but the mechanics of breathing. This study engineers a dynamic air-liquid interface bioreactor that combines three features usually found separately: cyclic strain that deforms an elastic membrane the way breathing does, basal perfusion, and aerosol delivered from above. Lung epithelial cells are therefore exposed to aerosolised particles while being physically stretched - conditions far closer to the alveolus than a static culture allows.

Authors & Affiliations

  • Ludovica Cacopardo
    Department of Information Engineering and Research Centre "E. Piaggio", University of Pisa, Italy
  • Nathalie Jung
    BioNanomaterials Group, Adolphe Merkle Institute, University of Fribourg, Switzerland
  • Nicole Guazzelli
    Research Centre "E. Piaggio", University of Pisa, Italy
  • Roberta Nossa
    Scientific Institute IRCCS Eugenio Medea, Bosisio Parini, Italy
  • Sandeep Keshavan
    BioNanomaterials Group, Adolphe Merkle Institute, University of Fribourg, Switzerland
  • Marc Witzig
    BioNanomaterials Group, Adolphe Merkle Institute, University of Fribourg, Switzerland
  • Andrea Rohrbasser
    BioNanomaterials Group, Adolphe Merkle Institute, University of Fribourg, Switzerland

Linari Electrospinning Systems

Linari electrospinning apparatus
The elastic membrane was produced on a Linari Engineering apparatus, with a sheet of aluminium foil fixed to the grounded collector before spinning. The paper does not name the model; see our range of electrospinning systems.

Topics

Lung-on-Chip Air-Liquid Interface Aerosol Exposure Cyclic Strain

Materials

Elastic electrospun membranes
Read the full publication
Back to blog