Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
745373 | Sensors and Actuators B: Chemical | 2006 | 6 Pages |
Abstract
A novel reflection-based localized surface plasmon resonance fiber-optic probe for chemical and biochemical sensing is reported. The sensor is based on intensity measurement of the internal reflected light at a fixed wavelength from an optical fiber where the extinction cross-section of self-assembled gold nanoparticles on the unclad portion of the optical fiber changes with different refractive index of the environment near the gold surface. The reflection-based localized surface plasmon resonance fiber-optic probe has been shown to be capable of direct sensing of the “spectroscopically silent” Ni2+ ion and label-free detection of streptavidin and staphylococcal enterotoxin B at the picomolar level.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Lai-Kwan Chau, Yi-Fang Lin, Shu-Fang Cheng, Tsao-Jen Lin,