Next generation of steady-state or perfusion cultivating Single-Use-Bioreactors for continuous expression of proteins. - CellMembra integrate Perfusion-Single-Use-Bioreactor come with the One-way Single-Use-Pump and Single-Use-Sensor's and single-use Hollow-Filter-Module operating at Pulsating-Tangential-Flow principle for cell retention. So far available in 0,5 and 3,2 litre Vessel Volume operating at +100 mio/cells/ml. - CellRetention integrate Perfusion-Single-Use-Bioreactor come with the Alternating-Single-Use-Exchanger and Single-Use-Sensor's and single-use Hollow-Filter-Module operating at Pulsating-Tangential-Flow principle for cell retention. Available from 100 ml to 2,000 ml Working Volume operating at +100 mio/cells/ml. - CellCore is a concept platform including scaffold or macro-beads for harbouring either suspension or adherent mammalian cells easily at 150 mio/cells/ml at steady-state conditions. CellCore is scalable from 15 ml to 15.000 ml all sizes as desktop models.