Bioreactors Flashcards
Bioreactor definition
a device in which biological and/or biochemical processes develop under closely monitored and tightly controlled coniditions
Functions?
Establish spatially uniform cell concentrations
control conditions in culture medium
provide physiologically relevant signals
facilitate mass transfer b/n cells & environment
Key applications?
Cell seeding onto scaffolds
Maintaining adequate mass transport in seeded constructs
cell prolif and diff
laying down ECM
physical conditioning of developing tissues
Challenges in design?
Oxygenation and CO2 removal
Provision and removal of macromolecules (cytokines and chemokines)
Overall physiological perfusion rates and uniformity of flow distribution down to functional subunit dimensions (100um)