Abstract
The SU-8 photopolymer is an excellent alternative for traditional materials used in fluidic devices such as glass- or silicon-Based inorganic materials. We describe a new chemically anchored, lithographically patterned hydrogel sensing element embedded in a completed SU-8 fluidic channel structure after the channel bonding process. Polyethylene glycol (PEG) hydrogel films incorporating oxygen-responsive ruthenium-complex fluorophores are grafted and patterned by photopolymerization of solution-phase precursors on the modified SU-8 channel surface. the optofluidic sensing platform with this embedded sensing elements exhibited excellent performance in measuring dissolved oxygen content. a unique advantage of this method is the selective growth of various functional films in situ by sequentially injecting different precursors. This fluidic sensing platform will be a viable component for both electrochemical and optical bioanalytical assays. ©2010 IEEE.
Recommended Citation
Z. Gao et al., "Polymer (SU-8) Optofluidic Device with Embedded Hydrogel Oxygen Sensing Elements," Proceedings of IEEE Sensors, pp. 79 - 82, article no. 5690839, Institute of Electrical and Electronics Engineers, Dec 2010.
The definitive version is available at https://doi.org/10.1109/ICSENS.2010.5690839
Department(s)
Chemical and Biochemical Engineering
Second Department
Electrical and Computer Engineering
International Standard Book Number (ISBN)
978-142448168-2
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Dec 2010
Included in
Biochemical and Biomolecular Engineering Commons, Electrical and Computer Engineering Commons
