Fabrication of Chemofluidic Integrated Circuits by Multi-Material Printing.

ABSTRACT: Photolithographic patterning of components and integrated circuits based on active polymers for microfluidics is challenging and not always efficient on a laboratory scale using the traditional mask-based fabrication procedures. Here, we present an alternative manufacturing process based on multi-material 3D printing that can be used to print various active polymers in microfluidic structures that act as microvalves on large-area substrates efficiently in terms of processing time and consumption of active materials with a single machine. Based on the examples of two chemofluidic valve types, hydrogel-based closing valves and PEG-based opening valves, the respective printing procedures, essential influencing variables and special features are discussed, and the components are characterized

SUBMITTER: Kutscher A 

PROVIDER: S-EPMC10052728 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature