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Modular microfluidic valve structures based on reversible thermoresponsive ionogel actuators

Benito-Lopez, Fernando and Antoñana-Díez, Marta and Curto, Vincenzo F. and Diamond, Dermot and Castro-López, Vanessa (2014) Modular microfluidic valve structures based on reversible thermoresponsive ionogel actuators. Lab on a Chip, 14 . pp. 3530-3538. ISSN 1473-0189

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This paper reports for the first time the use of a crosslinked poly(N- isopropylacrylamide) ionogel encapsulating the ionic liquid 1-Ethyl-3- methylimidazolium ethyl sulphate as a thermoresponsive and modular microfluidic valve. The ionogel presents superior actuation behaviour over its equivalent hydrogel. The ionogel swelling and shrinking mechanisms and kinetics are investigated as well as the performance of the ionogel when integrated as a valve in a microfluidic device. The modular microfluidic valve demonstrates fully reversible on-off behaviour without failure for up to eight actuation cycles and a pressure resistance of 1100 mbar.

Item Type:Article (Published)
Subjects:Engineering > Materials
Physical Sciences > Analytical chemistry
Biological Sciences > Microfluidics
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Science and Health > School of Chemical Sciences
Research Initiatives and Centres > INSIGHT Centre for Data Analytics
Research Initiatives and Centres > National Centre for Sensor Research (NCSR)
Publisher:Royal Society of Chemistry
Official URL:
Copyright Information:© 2014 RSC
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:Science Foundation Ireland, European Framework Programme 7, Ministerio de Economía y Competitividad, Spain, Gobierno Vasco
ID Code:20028
Deposited On:10 Sep 2014 14:10 by Dermot Diamond. Last Modified 27 Apr 2017 15:33

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