Technical University of Munich
School of Computation, Information and Technology
Chair for Design Automation
Prof. Dr. Robert Wille
Arcisstrasse 21
80333 Munich | Germany
Tel: +49 89 289 23551

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The Chair for Design Automation is supported by the Bavarian State Ministry for Science and Arts through the Distinguished Professorship Program.

Der Lehrstuhl für Design Automation wird durch das Bayerische Staatsministerium für Wissenschaft und Kunst im Rahmen des Spitzenprofessurenprogramms gefördert.

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Gradient Generator

This page provides the Gradient Generator: a tool allowing to automatically create designs for tree-shaped concentration gradient generators. Such devices are used to mix two fluids with different concentration values and provide various mixtures of these fluids (i.e., mixtures with certain concentration values) at corresponding outlets. The concentration values at the outlets as well as the number of outlets can be specified by the user. Besides this, the user only has to specify basic input parameters, such as the channel width, fluid viscosity, flow rates etc. Based on this parameters a design of a tree-shaped concentration gradient generator is automatically generated and can then be downloaded as Scalable Vector Graphics (SVG) file.

Details of the approach are summarized in the paper entitled "Automatic Design of Microfluidic Gradient Generators".

In case of questions/problems, please contact us through

If you use the tool for your research, we would be thankful if you referred to it by citing the following publication:

   title={Automatic Design of Microfluidic Gradient Generators},
   author={Gerold Fink and Tina Mitteramskogler and Marcus Hintermüller and Bernhard Jakoby and Robert Wille,

journal={IEEE Acess},


More on our work on microfluidics is summarized in this page.