This optical biosensor incorporates a novel technique for detecting halogenated organic compounds. This invention can be particularly useful for monitoring halogenated organic chemicals like pollutants and pesticides in such environments as soil, groundwater, wastewater, and other aqueous environments.

Currently available techniques to measure analytes like pollutants and pesticides are typically expensive and relatively slow. Those methods, which include conventional laboratory chemistry and immunoassay techniques, are usually performed in the laboratory away from the site of contamination.
This optical biosensor detects the presence and/or concentration of an analyte, such as a pollutant or pesticide, in soil and aqueous environments in situ.
It can be used to detect commonly used pesticides, such as chlorinated herbicides, atrazine, simazine, terbuthylazine, propazine, cyanizine, deethylatrazine, DDT, lindane, and deisopropylatrazine.
This biosensor detects and quantifies analytes by monitoring pH and/or halide ion concentration.
This stable long-lived biosensor can perform well over long periods of time and withstand prolonged storage without impacting the precision of its analysis.