Abstract
In this study, the design of a novel optical sensor that comprises surface plasmon resonance sensing chip and zinc oxide nano-film was proposed for the detection of nitric oxide gas. The electrical and optical properties of zinc oxide film vary in the presence of nitric oxide. This effect was utilized to prepare biochemical sensors with transduction based on surface plasmon resonance. Due to the refractive index of the transparent zinc oxide film that was deposited on the gold film, however, changes will be observed in the surface plasmon resonance spectra. For this reason, the thickness of zinc oxide film will be investigated and determined in this study. The interaction of nitric oxide with a 20 nm zinc oxide layer on gold leads to the shift of the resonance angle. The analysis on the reflectance intensity of light demonstrates that such effect is caused by the variation of conductivity and permittivity of zinc oxide film. Finally, a shift in surface plasmon resonance angle was measured in 25 ppm nitric oxide at 180 °C and a calibration curve of nitride oxide concentration versus response intensity was successfully obtained in the range of 250 to 1000 ppm nitric oxide at lower temperature of 150 °C. Moreover, these effects are quasi-reversible.
| Original language | English |
|---|---|
| Pages (from-to) | 62-66 |
| Number of pages | 5 |
| Journal | Journal of Bionanoscience |
| Volume | 2 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2008 Jun 1 |
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Keywords
- Gas sensor
- Nitric oxide
- Surface plasmon resonance
- Zinc oxide
- ZnO thin film
ASJC Scopus subject areas
- Biotechnology
- Biomaterials
- Biomedical Engineering
Cite this
Surface plasmon resonance biochip based on ZnO thin film for nitric oxide sensing. / Feng, Wei Yi; Chiu, Nan-Fu; Lu, Hui Hsin; Shih, Hsueh Ching; Yang, Dongfang; Lin, Chii Wann.
In: Journal of Bionanoscience, Vol. 2, No. 1, 01.06.2008, p. 62-66.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Surface plasmon resonance biochip based on ZnO thin film for nitric oxide sensing
AU - Feng, Wei Yi
AU - Chiu, Nan-Fu
AU - Lu, Hui Hsin
AU - Shih, Hsueh Ching
AU - Yang, Dongfang
AU - Lin, Chii Wann
PY - 2008/6/1
Y1 - 2008/6/1
N2 - In this study, the design of a novel optical sensor that comprises surface plasmon resonance sensing chip and zinc oxide nano-film was proposed for the detection of nitric oxide gas. The electrical and optical properties of zinc oxide film vary in the presence of nitric oxide. This effect was utilized to prepare biochemical sensors with transduction based on surface plasmon resonance. Due to the refractive index of the transparent zinc oxide film that was deposited on the gold film, however, changes will be observed in the surface plasmon resonance spectra. For this reason, the thickness of zinc oxide film will be investigated and determined in this study. The interaction of nitric oxide with a 20 nm zinc oxide layer on gold leads to the shift of the resonance angle. The analysis on the reflectance intensity of light demonstrates that such effect is caused by the variation of conductivity and permittivity of zinc oxide film. Finally, a shift in surface plasmon resonance angle was measured in 25 ppm nitric oxide at 180 °C and a calibration curve of nitride oxide concentration versus response intensity was successfully obtained in the range of 250 to 1000 ppm nitric oxide at lower temperature of 150 °C. Moreover, these effects are quasi-reversible.
AB - In this study, the design of a novel optical sensor that comprises surface plasmon resonance sensing chip and zinc oxide nano-film was proposed for the detection of nitric oxide gas. The electrical and optical properties of zinc oxide film vary in the presence of nitric oxide. This effect was utilized to prepare biochemical sensors with transduction based on surface plasmon resonance. Due to the refractive index of the transparent zinc oxide film that was deposited on the gold film, however, changes will be observed in the surface plasmon resonance spectra. For this reason, the thickness of zinc oxide film will be investigated and determined in this study. The interaction of nitric oxide with a 20 nm zinc oxide layer on gold leads to the shift of the resonance angle. The analysis on the reflectance intensity of light demonstrates that such effect is caused by the variation of conductivity and permittivity of zinc oxide film. Finally, a shift in surface plasmon resonance angle was measured in 25 ppm nitric oxide at 180 °C and a calibration curve of nitride oxide concentration versus response intensity was successfully obtained in the range of 250 to 1000 ppm nitric oxide at lower temperature of 150 °C. Moreover, these effects are quasi-reversible.
KW - Gas sensor
KW - Nitric oxide
KW - Surface plasmon resonance
KW - Zinc oxide
KW - ZnO thin film
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UR - http://www.scopus.com/inward/citedby.url?scp=56749170439&partnerID=8YFLogxK
U2 - 10.1166/jbns.2008.028
DO - 10.1166/jbns.2008.028
M3 - Article
AN - SCOPUS:56749170439
VL - 2
SP - 62
EP - 66
JO - Journal of Bionanoscience
JF - Journal of Bionanoscience
SN - 1557-7910
IS - 1
ER -