Zamprogno et al. report a lung-on-a-chip of the second generation that mimics an array of alveoli with in vivo-like dimensions, based on a thin, stretchable collagen-elastin membrane used to reproduce the air-blood barrier functions. The membrane is stable, can be cultured on both sides for weeks, is biodegradable and its elastic properties allow mimicking respiratory motions by mechanically stretching the cells.
- Pauline Zamprogno
- Simon Wüthrich
- Olivier T. Guenat
