Double spiral detection channel for on-chip chemiluminescence detection

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Author(s)
Lok, Khoi Seng
Kwok, Yien Chian
Nam-Trung, Nguyen
Griffith University Author(s)
Year published
2012
Metadata
Show full item recordAbstract
In this paper, we introduced a three-layered microchip that consists of a double spiral channel design for chemiluminescence (CL) detection and a passive micromixer to facilitate the mixing of reagents. The design with two overlapping spiral channels doubled the CL intensity emitted from the reaction as compared to the design with a single spiral channel. The addition of the passive micromixer improved the signal by 1.5 times. Luminol-based chemiluminescence reaction was used for the characterization of the device. This microchip was successfully tested with the determination of l-cysteine and uric acid.In this paper, we introduced a three-layered microchip that consists of a double spiral channel design for chemiluminescence (CL) detection and a passive micromixer to facilitate the mixing of reagents. The design with two overlapping spiral channels doubled the CL intensity emitted from the reaction as compared to the design with a single spiral channel. The addition of the passive micromixer improved the signal by 1.5 times. Luminol-based chemiluminescence reaction was used for the characterization of the device. This microchip was successfully tested with the determination of l-cysteine and uric acid.
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Journal Title
Sensors and Actuators B: Chemical
Volume
169
Copyright Statement
© 2012 Elsevier B.V.. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
Subject
Atomic, molecular and optical physics
Analytical chemistry
Sensor technology (incl. chemical aspects)
Materials engineering
Microelectromechanical systems (MEMS)