Journal
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
Volume 30, Issue 9, Pages 1409-1418Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/1045389X17742726
Keywords
active polymers; modeling polymers; hydrogel-based micro-valve; ANSYS; multi-field simulation; concentration-triggered hydrogel; circuit descriptions; lab-on-a-chip
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Funding
- German Research Foundation (DFG) within the Cluster of Excellence Center for Advancing Electronics Dresden'' (cfaed)
- German Research Foundation [GRK1865]
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Smart hydrogel micro-valves are essential components of micro-chemo-mechanical fluid systems. These valves are based on phase-changeable polymers. They can open and close micro-fluidic channels depending on the chemical concentration or the temperature in the fluid. A concept of finite element-based modeling in combination with network methods to simulate concentration-triggered, phase-changeable hydrogels is proposed. We introduce a temperature domain as a replication domain to substitute insufficiently implemented domains. With the used simulation tools, problems are highlighted and their solutions are presented. The computed parameters of such valves are included in a circuit representation, which is capable of efficiently computing large-scale micro-fluidic systems. These methods will help predict, visualize, and understand polymeric swelling behavior as well as the performance of large-scale chip applications before any complex experiment is performed.
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