A new micro-fluidic biosensor array for fast online adherent cell monolayer analysis during cell proliferation and stimulation was developed. Quartz crystal resonators and impedimetric sensor responses were analysed by means of impedance spectroscopy. Time-lapse light microscopy was employed for visual characterization of the cells. Four independent units embedded within the same device allow parallelized cell cultivation. An external flow injection system provides automated and parallelized media feed as well as overpressure regime in the system. Thin-film deposition techniques were applied...