The scope of this project is the development of miniaturized platforms to provide novel tools to accelerate the development phase of bio catalytic processes. It is expected that the platforms will serve multiple purposes in the process development phase, for example fast and easy optimization of process conditions or rapid feasibility screening of new and modified biocatalysts. The chosen reaction system for the platform development is specifically based on ω-transaminase. This specific biocatalyst is of interest due to the complexity of the reaction, which involves two substrates and two products as well as several enzymes, and generally highly unfavorable reaction equilibrium.