BLACKSBURG, VA, United States
BLACKSBURG, VA, United States
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Nucleic acid amplification tests have been widely used in clinical laboratories. Nucleic acid extraction from biological materials is challenging because different unfavorable substances may co-extract and inhibit downstream applications. The present claimed invention relates to a composition of and a method for treating the sample prior, during or post extraction of nucleic acid. More specifically, the claimed invention relates to a composition of and a method for using low concentrations of common organic solvents to remove inhibitors of nucleic acid amplification. The present claimed invention can be used for extracting nucleic acids (DNA/RNA) from bacteria, viruses, parasites, and other biological materials or matrices, including but not limit to, stool samples, body fluids, plants and cultures. The method is rapid, low-cost, and easy to use in a laboratory setting. The nucleic acid extracted in accordance with the claimed invention can be used for nucleic acid amplification reactions.


Nucleic acid amplification tests have been widely used in clinical laboratories. Nucleic acid extraction from biological materials is challenging because different unfavorable substances may co-extract and inhibit downstream applications. The present invention relates to a composition of and a method for treating the sample prior, during or post extraction of nucleic acid. More specifically, the claimed invention relates to a composition of and a method for using low concentrations of common organic solvents to remove inhibitors of nucleic acid amplification. The present invention can be used for extracting nucleic acids (DNA/RNA) from bacteria, viruses, parasites, and other biological materials or matrices, including but not limit to, stool samples, body fluids, plants and cultures. The method is rapid, low-cost, and easy to use in a laboratory setting. The nucleic acid extracted in accordance with the invention can be used for nucleic acid amplification reactions.


Patent
Techlab, Inc. | Date: 2016-06-16

The present invention provides assays and devices for detection of substances in liquid samples. The assays and devices utilize passive diffusion between a porous material and a porous membrane containing a specific binding pair member to enable detection of the substance of interest.


Clostridium difficile disease involves a range of clinical presentations ranging from mild to self-limiting diarrhea to life-threatening pseudomembranous colitis and megacolon. Cases of C. difficile are treated differently depending on severity of disease. Mild and moderate cases may be treated with metronidazole while moderate-to-severe and relapsing cases are often treated with vancomycin or fidaxomicin. The presence of C. difficile disease is detected using a biomarker panel that includes C. difficile antigen (GDH), toxins A and B, and fecal lactoferrin. In patients suspected of C. difficile disease, if GDH is detected indicating the presence of C. difficile, and then toxins A and/or B are detected to indicate toxigenic C. difficile and support a diagnosis of C. difficile-associated disease, fecal lactoferrin concentrations are measured to determine severity of the disease by indicating the amount of intestinal inflammation.


Patent
Techlab, Inc. | Date: 2013-01-23

The present invention provides assays and devices for detection of substances in liquid samples. The assays and devices utilize passive diffusion between a porous material and a porous membrane containing a specific binding pair member to enable detection of the substance of interest.


Patent
Techlab, Inc. | Date: 2015-01-27

The present invention provides assays and devices for detection of substances in liquid samples. The assays and devices utilize passive diffusion between a porous material and a porous membrane containing a specific binding pair member to enable detection of the substance of interest.


Nucleic acid amplification tests have been widely used in clinical laboratories. Nucleic acid extraction from biological materials is challenging because different unfavorable substances may co-extract and inhibit downstream applications. The present invention relates to a composition of and a method for treating the sample prior, during or post extraction of nucleic acid. More specifically, the claimed invention relates to a composition of and a method for using low concentrations of common organic solvents to remove inhibitors of nucleic acid amplification. The present invention can be used for extracting nucleic acids (DNA/RNA) from bacteria, viruses, parasites, and other biological materials or matrices, including but not limit to, stool samples, body fluids, plants and cultures. The method is rapid, low-cost, and easy to use in a laboratory setting. The nucleic acid extracted in accordance with the invention can be used for nucleic acid amplification reactions.


Patent
Techlab, Inc. | Date: 2016-02-17

The present invention discloses a device for detecting at least one substance of interest in a liquid sample, the device comprising:(a) a receptacle comprising a porous material for receiving the liquid sample, wherein the porous material is capable of absorbing and transmitting at least a portion of the liquid sample, and(b) a porous membrane that comprises a specific binding pair member that is specific for the substance of interest or a substance bound to the substance of interest, wherein the specific binding pair member is an antibody,wherein the receptacle and porous membrane are each shaped to permit the porous membrane to be in direct contact with the porous material over at least a portion of the porous membrane that comprises the specific binding pair member,wherein the porous material is in physical contact with a bottom side of the porous membrane comprising the specific binding pair member, the specific binding pair member being located above the porous material, the porous membrane being in direct contact with the porous material at a site where the specific binding pair member is located.


Accurate and fast detection of the presence of Campylobacter disease is important for the proper treatment of patients with Campylobacter infection. Present tests depend upon culture of viable bacteria and identification by microscopy, which requires care, skill, and two or more days for conclusive results. The current invention improves the ease of use and overcomes the limitations of loss of viability and delay inherent in Campylobacter bacterial culture and provides a more rapid alternative for the identification and diagnosis of Campylobacter and campylobacteriosis. The invention provides a new method of detecting Campylobacter by utilizing an outer membrane protein (OMP 18) to develop antibodies for use in immunoassays of bacterial cultures or human fecal samples.


Accurate and fast detection of the presence of Campylobacter disease is important for the proper treatment of patients with Campylobacter infection. Present tests depend upon culture of viable bacteria and identification by microscopy, which requires care, skill, and two or more days for conclusive results. The current invention improves the ease of use and overcomes the limitations of loss of viability and delay inherent in Campylobacter bacterial culture and provides a more rapid alternative for the identification and diagnosis of Campylobacter and campylobacteriosis. The invention provides a new method of detecting Campylobacter by utilizing an outer membrane protein (OMP 18) to develop antibodies for use in immunoassays of bacterial cultures or human fecal samples.

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