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Slide LudwigLab Biocatalysis & Biosensing Research Group

Electrochemical Laboratory

For the investigation of redox processes we established several electrochemical techniques in our laboratory which require potentiostats and a range of reaction chambers such as flow-cells, rotating disc (or ring-disk) electrodes, and a quartz crystal microbalance. Sensitive equipment is placed in Faradaic cages to protect them from electromagnetic interferences. We perform potential sweep methods (e.g. cyclic voltammetry, CV), pulse voltammetry (square wave volammtery, SWV),  amperometry and electrochemical impedance spectroscopy (EIS) to determine the redox potential of enzyme cofactors, electron transfer rates and reaction rates and the electronic polarization behaviour of enzyme modified electrodes.

4 Gamry Reference 600+ Potentiostats/Galvanostats
2 Metrohm Autolab PGSTAT204 Potentiostats/Galvanostats
Metrohm Autolab Rotating Disk Electrode
Sutter Instrument Micropipette Puller P-1000
Sutter Instrument Micropipette Puller P-2000

Scanning Electrochemical Microscope (SECM) consisting of a Sensolytics SECM together with a Autolab PGSTAT302N with low current module or a Gamry Reference 600+, a vibration dampening table, two faradaic cages, a Zeiss Axiovert 35 inverted fluorescence microscope, a Hirox videomicroscope, two Sutter Instrument Trio MP-245 micromanipulators and a PI Digital Multi-Channel Piezo Controller (E-727)