Microfluidic Lung Chip For Development Modeling

A microfluidic lung chip applies controlled mechanical forces to hydrogel-embedded lung cells or organoids to model lung development in vitro.
Problem:
Developing lung tissues experiences dynamic mechanical forces during organogenesis. How these forces influence later-stage lung development remains poorly understood. Existing models have not adequately recreated these mechanical conditions in controllable in vitro systems. This has limited study of alveolar development under physiologically relevant force schedules.
Solution:
The technology provides a lung-on-a-chip microfluidic chip with a central cell channel, adjacent side channels, and a vacuum chamber separated by a membrane. Pressure changes in the vacuum chamber move the membrane and apply mechanical force to cells in a matrix. The matrix can be a hydrogel containing organoids or human pluripotent stem cell-derived alveolar type 2 cells. The method can apply force schedules aligned with physiological movements, including fetal breathing movements.
Technology Overview:
The chip includes a first region with a central channel containing cells in a matrix and at least one adjacent side channel. A second region includes a vacuum chamber separated from the central channel by a membrane that maintains fluidic isolation. Side channels can contain culture medium, while the central chamber supports hydrogel-based cell or organoid culture. A pressure-control method drives membrane movement to create mechanical stimulation and can generate tissues that substantially recapitulate physiological tissue.
Advantages:

Combines cell culture, nutrient supply, and mechanical actuation in one microfluidic platform
Applies controlled mechanical force to cells disposed in a matrix through membrane movement
Supports hydrogel-based culture formats, including organoids and alveolar type 2 cells
You can use force schedules that simulate physiological movements, including fetal breathing movements
Maintains fluidic isolation between the culture channel and vacuum chamber

Applications:

Lung Development Research: Models developing lung tissue under controlled mechanical stimulation in a microfluidic format
Organoid Culture: Supports hydrogel-based culture of lung organoids or alveolar type 2 cells within a mechanically actuated chip
Mechanobiology Studies: Applies force schedules that simulate physiological movements, including fetal breathing movements
Tissue Modeling: Generates cell cultures that substantially recapitulate physiological tissue exposed to mechanical forces in vivo

Stage of Development: