O2, H2S and pH microprofiles in biofilm
Microbial mats undergo daily cycles that are characterized by dramatic changes in oxygen, pH and H2S dynamics. The mats are highly active systems with functional layers of only a few hundred microns. To investigate the dynamics within these layers it is important that measurements in the mat can be performed at high spatial resolution. Unisense microsensors can be made with sensor tips down to 3 µm and they are therefore very suited for studies of active systems.
This is a study example of microprofiling completed in a costal sediment mat collected at Aggersund, Denmark. During the measurements the mat was exposed to varying light intensities or darkness. Microsensors were mounted on a motorized MicroProfiling System, microsensor position was monitored using a dissection microscope and sensor data was logged using SensorTrace PRO.
OX-25, pH-25, RD-25, H2-25, Ref-RM
|Amplifier System||Microsensor Multimeter|