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Proceedings Paper

Fiber optic affinity ligand sensor for quantification of petroleum and bioremediation
Author(s): Thomas A. Wavering; Jennifer L. Elster; Shufang Luo; Mishell K. Evans; Charles Pennington; Roger Van Tassell; Mark E. Jones
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Paper Abstract

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.

Paper Details

Date Published: 26 February 2001
PDF: 7 pages
Proc. SPIE 4205, Advanced Environmental and Chemical Sensing Technology, (26 February 2001); doi: 10.1117/12.417446
Show Author Affiliations
Thomas A. Wavering, Luna Innovations, Inc. (United States)
Jennifer L. Elster, Luna Innovations, Inc. (United States)
Shufang Luo, Luna Innovations, Inc. (United States)
Mishell K. Evans, Luna Innovations, Inc. (United States)
Charles Pennington, Luna Innovations, Inc. (United States)
Roger Van Tassell, Luna Innovations, Inc. (United States)
Mark E. Jones, Luna Innovations, Inc. (United States)

Published in SPIE Proceedings Vol. 4205:
Advanced Environmental and Chemical Sensing Technology
Tuan Vo-Dinh; Stephanus Buettgenbach, Editor(s)

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