Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Daniel Latta

Michael Bassler

Ralf Himmelreich

Klaus Stefan Drese

Klaus-Stefan Drese

Tobias Schunck

Markus Holzki

Peter Spang

Marion Ritzi-Lehnert

Tina Roeser

Michael BAßLER

Achim Breitruck

A fluidic system having a first volume, a second volume and a membrane geometrically separating the two volumes, which has an open-pore microstructure for the passage of a first medium and a second medium. There is a contact angle (&#x398;) between the interface of the media and the pore surface. A first electrical field in the region of the membrane and a first electromagnetic radiation and a first heating of the membrane define a first state (Z), in which the membrane is not wetted or is less wetted by the first medium and is more heavily wetted by the second medium such that a first contact angle &#x398;&#x3e;90&#xb0; is formed between the pore surface and the interface. The first medium and the second medium and the pore surface have a surface energy of which at least one surface energy can be reversibly changed in such a way that a second contact angle &#x398;&#x3c;&#x398;occurs between the pore surface and the interface in a second state (Z).

Fluidic system, use, and method for operating the same

A microfluidic arrangement including a substrate in which a microfluidic structure having several adjacent channels and at least one common supply line, into which the adjacent channels merge, is formed. Each of the adjacent channels form the cylinder of a cylinder-piston arrangement for receiving an associated piston. A method for producing the type of microfluidic-arrangement is also disclosed.

Microfluidic chip comprising several cylinder-piston arrangements

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Mainz, Germany

Daniel Latta