Optical biosensors have been developed for rapid detection of contaminants in foods, including pathogens, and several have evolved into commercial prototype systems.
The use of optical fibers as the standard means for the transmission of information is well known. However, less well known is the fact that propagation of light through a fiber or waveguide can be very sensitive to the surroundings, making optical fibers excellent detectors for a variety of applications in foods (Swatland, 1992). Optical technology has developed to the point where biosensors can be created that can detect contaminants in foods, particularly pathogens, with speed that greatly ex…
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