DocumentCode
2533507
Title
Conductometric and optical sensing of stimuli senssitive hydrogels inside microfluidic channels
Author
Guan, T. ; Ceyssens, F. ; Puers, R.
Author_Institution
Dept. ESAT-MICAS, KULeuven, Leuven, Belgium
fYear
2011
fDate
5-9 June 2011
Firstpage
1264
Lastpage
1267
Abstract
In this paper, a MEMS on-chip microfluidic platform was designed, fabricated and characterized. This MEMS device can provide characterization for various stimuli sensitive hydrogels at microscale level, which makes it a useful tool for developing and comparing different hydrogels. The hydrogel swelling behavior can be visually monitored by optical methods, as well as by an embedded conductometric sensing. One sample hydrogel was tested utilizing the proposed MEMS device, showing 200% surface area increase and 35% resistance decrease due to swelling.
Keywords
hydrogels; microfabrication; microfluidics; microsensors; optical sensors; MEMS on-chip microfluidic platform; conductometric sensing; hydrogel swelling behavior; microfluidic channel; microscale level; optical sensing; stimuli sensitive hydrogel; Electrodes; Microfluidics; Micromechanical devices; Optical sensors; Resistance; Resists; hydrogels; microfluidic; stimuli sensitive;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Sensors, Actuators and Microsystems Conference (TRANSDUCERS), 2011 16th International
Conference_Location
Beijing
ISSN
Pending
Print_ISBN
978-1-4577-0157-3
Type
conf
DOI
10.1109/TRANSDUCERS.2011.5969414
Filename
5969414
Link To Document