DocumentCode
2878981
Title
Optical biosensor based on colloidal gold-modified long-period fiber grating
Author
Guo, Ken-Ming ; Cheng, Shu-Fang ; Lai-Kwan Chau ; Tang, Jaw-Luen
Author_Institution
Dept. of Phys., Nat. Chung Cheg Univ., Chiayi, Taiwan
fYear
2004
fDate
14-17 Dec. 2004
Firstpage
207
Lastpage
208
Abstract
A novel class of fiber-optic biosensor that exploits the localized surface plasmon resonance of self-assembled gold colloids on the grating portion of a long-period fiber grating is proposed. When the gold colloidal surface was modified with DNP, experimental results show that the signal increases linearly with increasing concentration of the analyte, and the detection limit of the sensor for antiDNP is 3.80×10-7 M.
Keywords
biosensors; colloids; diffraction gratings; fibre optic sensors; gold; organic compounds; self-assembly; surface plasmon resonance; Au; DNP; antiDNP; fiber-optic biosensor; localized surface plasmon resonance; long-period fiber grating; self-assembled gold colloids; Biomedical optical imaging; Biosensors; Fiber gratings; Gold; Optical fiber sensors; Optical fibers; Optical refraction; Optical sensors; Optical surface waves; Optical variables control;
fLanguage
English
Publisher
ieee
Conference_Titel
Biophotonics, 2004. APBP 2004. The Second Asian and Pacific Rim Symposium on
Print_ISBN
0-7803-8676-0
Type
conf
DOI
10.1109/APBP.2004.1412354
Filename
1412354
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