Microbial growth detector

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United States of America Patent

PATENT NO 9850457
SERIAL NO

12928960

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Abstract

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The disclosure generally relates to a test device that detects microorganism growth by detecting a gas metabolite (e.g., carbon dioxide) produced during the growth of bacteria or other microorganism in a tested sample. The test device can contain a culture growth media separated from a detection area by a gas-permeable membrane. The gas-permeable membrane permits carbon dioxide to permeate into the detection area. The detection area includes a solidified mixture of pH indicators and a gelling agent in the form of a semi-permeable matrix. The optical properties, including the absorbance of light at various wavelengths, of the detection solution change with alterations in carbon dioxide concentration. This test device can then be placed in an incubation and optical detection instrument to monitor changes in optical properties of the detection are induced during microorganism growth in the culture medium.

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Patent Owner(s)

Patent OwnerAddress
NEOGEN CORPORATION620 LESHER PLACE LANSING MI 48912

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cooper, Christine Claire Williamston, US 1 11
Kariagin, Alexandr Y East Lansing, US 1 11
McDougal, Susan Teruko Novi, US 1 11
Sarver,, Jr Ronald Waldo Dexter, US 1 11

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