Optical method and device for the detection and enumeration of microorganisms

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United States of America Patent

PATENT NO 8557539
APP PUB NO 20080176273A1
SERIAL NO

11766223

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Abstract

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A new device and method for detecting the presence of living microorganisms in test samples are described. The device comprises a container with at least one section transparent to light, a growth zone located in said container containing a mixture of growth media capable of supporting growth of the microorganisms, and at least one indicator substrate that changes its optical properties due to growth of the microorganisms. A detection zone is located in the container adjacent to the transparent section, and a barrier layer comprising porous solid material separates the two zones, allowing diffusion of molecules and ions of metabolic by-products of the organisms, while preventing microorganisms and particulate matter of the test sample from penetrating into the detection zone.

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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
Eden, Gideon Ann Arbor, US 45 423
Eden, Ruth Ann Arbor, US 6 71

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