Method and device for the detection of microorganisms by fiber optics
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United States of America Patent
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Apr 6, 2004
Grant Date -
N/A
app pub date -
Jul 31, 2000
filing date -
Jul 21, 2000
priority date (Note) -
Expired
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Abstract
The detection/monitoring of microorganisms present in a sample is enabled through the use of a fiber optic biosensor with an evanescent-field. Embodiments include: (i) a method for detection of contamination by specific microorganisms through the use of said biosensor, permitting the interaction of the exposed evanescent-field with the sample to be examined which has a form adequate to obtain the generation of an optical signal in response to the presence of microorganisms in said sample; (ii) a composition for use in the detection of microorganisms; and (iii) a device for surveying microorganisms through an insertion of a sensitive fiber optic, with an adequately exposed evanescent-field, into a surface or volume of a biological culture medium specific for the microorganism to be detected, comprising a demodulation system based on a fiber optic circuit and related components.
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