Title
A Disposable Bod Microsensor Using A Polymer Substrate
Keywords
BOD sensor; Disposable sensor; Environmental application; Flow-through measurement; Microbial sensor
Abstract
A disposable microbial sensor was designed, fabricated and tested for standard BOD (Biochemical Oxygen Demand) measurements. A transparent Cyclic Olefin Copolymer (COC) substrate was used for sensor fabrication. Standard lithographic procedures in addition to techniques like screen printing and electroplating were used to fabricate the sensor. A layer of a microbial strain of Trichosporon Cutaneum was immobilized over one pair of sensor electrodes while the other was used as a reference. Depending on the respiratory activities of the microbial strain in different samples, the BOD values of the samples could be measured in terms of difference between the output signals. The sensor layer was enclosed by an injection-molded passive microfluidic channel on the top. The BOD sensor was calibrated and tested with standard BOD solutions and samples obtained from a wastewater reclamation facility. Good correlation with chemically determined BOD5 values was obtained with fast response time. Advantages of the BOD microsensor include (a) fast BOD measurement (b) disposability from a low cost, chemically inert polymer substrate (c) flow-through sample injection scheme and (d) possible future integration of on-chip optics. © 2004 IEEE.
Publication Date
12-1-2004
Publication Title
Proceedings of IEEE Sensors
Volume
3
Number of Pages
1202-1205
Document Type
Article; Proceedings Paper
Personal Identifier
scopus
Copyright Status
Unknown
Socpus ID
27944453598 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/27944453598
STARS Citation
Anjum, Mehta; Shekhar, Halakatti; Hyun, Seung H.; Hong, Seungkwan; and Cho, Hyoung J., "A Disposable Bod Microsensor Using A Polymer Substrate" (2004). Scopus Export 2000s. 4831.
https://stars.library.ucf.edu/scopus2000/4831