Abstract: The invention relates in a first aspect to an improved fluidic device for determining a property of a microbe. The device comprising a bottom layer comprising a plurality of light-transmissive wells; and a top layer comprising an injection opening and a fluid distribution system. Each of said plurality of distribution channels has: essentially the same channel length between the inlet end and the outlet end; and essentially the same channel volume. The invention relates in a second aspect to a use of the device for determining a susceptibility of a microbe, preferably a bacterium, to an antimicrobial drug.

Abstract: A method for determining a minimum inhibitory concentration (MIC) to an antimicrobial drug for a bacteria culture in a container, the method comprising calculating for each well a third derivative of said detected intensity; comparing said third derivative of the detected intensity to one or more threshold values; determining a MIC value based on said comparison of said third derivative to said one or more threshold values.