Porous Tin-Oxide-Coated Regenerated Cellulose as Disposable and Low-Cost Alternative Transducer for Urea Detection

Title
Porous Tin-Oxide-Coated Regenerated Cellulose as Disposable and Low-Cost Alternative Transducer for Urea Detection
Authors
김재환
Keywords
Biosensor, cellulose, hybrid composite, sensitivity, urea.
Issue Date
2013
Publisher
IEEE SENSORS JOURNAL
Series/Report no.
IEEE SENSORS JOURNAL; vol.13 no.6 startpage 2223 endpage 2228
Abstract
This paper investigates the possibility of utilizing tin-oxide (SnO2)-coated regenerated cellulose as a disposable and low-cost alternative transducer for urea detection. A thin layer of SnO2 is coated on regenerated cellulose films via liquid-phase deposition technique. Cellulose-SnO2 hybrid nanocomposite urea biosensor is prepared by immobilizing urease on the SnO2 layers by physical absorption method. The resulting biosensor shows a linear response up to 42 mM. Also it is found that the proposed sensor exhibits the same level of sensitivity for seven days; in other words, the sensitivity of the sensor did not degrade with time and remained same for 7 days. This urea sensor is inexpensive, flexible, and disposable.
URI
http://dspace.inha.ac.kr/handle/10505/31497
ISSN
1530-437X
Appears in Collections:
College of Engineering(공과대학) > Mechanical Engineering(기계공학) > Journal Papers, Reports(기계공학 논문, 보고서)
Files in This Item:
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