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26 February 2001 Fiber optic affinity ligand sensor for quantification of petroleum and bioremediation
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Proceedings Volume 4205, Advanced Environmental and Chemical Sensing Technology; (2001)
Event: Environmental and Industrial Sensing, 2000, Boston, MA, United States
A novel system incorporating optical fiber long-period grating (LPG)-based sensors for rapid detection of biological targets is presented to address the current need for highly responsive, inexpensive, instrumentation for in-situ subsurface bioremediation technologies. With the appropriate configuration, the LPG sensor is able to measure key environmental parameters. The sensor allows for highly sensitive, real-time, refractive index measurements and by applying affinity coatings to the fiber surface, specific binding of molecules can be accomplished using swellable polymers or ligand-based affinity coatings. Advantages of the sensors have are that they are highly responsive, low profile, and can be serially multiplexed within a single-ended probe-like arrangement. This arrangement can be utilized either locally for site characterization or as a distributed sensor to map contaminant levels at multiple depths over a large area. The performance advantages make optical fiber sensors ideal for detection of environmental targets in drinking water, groundwater, soil, and other complex samples. This paper presents recent long-period grating-based sensor results that demonstrate the potential for bioremediation as well as a variety of other chemical and biological sensing applications.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Thomas A. Wavering, Jennifer L. Elster, Shufang Luo, Mishell K. Evans, Charles Pennington, Roger Van Tassell, and Mark E. Jones "Fiber optic affinity ligand sensor for quantification of petroleum and bioremediation", Proc. SPIE 4205, Advanced Environmental and Chemical Sensing Technology, (26 February 2001);

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