Schleicher & Schuell, Inc.

Ge Healthcare Bio-sciences Corp.

Other

Whatman Gmbh

Michael A Harvey

Stevan Paul Tortorella

Elizabeth A Moran

John Pipinias

Richard D Kremer

Robert L Burghoff

Thomas H King

Rudolf E Slovacek

Charlene A Audette

Christopher N Bush

Breck O Parker

John Pipnias

Stevan P Tortorella

The field of the present invention pertains to a controlled transfer biological collection device using a dry solid storage and transfer medium and a method for the collection of biological material of interest (genetic or proteinaceous material) in a form suitable for storage and/or subsequent analysis. Specifically, the present invention provides for a sampling device that controls the transfer of the biological sample to the storage medium by holding the storage medium and a moveable sample collection member having an analyte collection surface. The invention further provides for a method not only for storing a biological analyte on this collection device but also for analyzing the stored biological analyte using methods that are suited for automated analyzing systems.

Controlled transfer biological sample collection devices and methods of using such devices

The field of the present invention pertains to a controlled transfer biological collection device using a dry solid storage and transfer medium and a method for the collection of biological material of interest (genetic or proteinaceous material) in a form suitable for storage and/or subsequent analysis. Specifically, the present invention provides for a sampling device that controls the transfer of the biological sample to the storage medium by holding the storage medium and a moveable sample collection cmember having an analyte collection surface. The invention further provides for a method not only for storing a biological analyte on this collection device but also for analyzing the stored biological analyte using methods that are suited for automated analyzing systems.

The present invention relates to devices and methods for the collection, storage, and purification of nucleic acids, such as DNA or RNA, from fluid samples for subsequent genetic characterization, primarily by conventional amplification methods. The present invention can be used to collect, store, or purify nucleic acids either from a biological source other than untreated whole blood, the biological source having naturally occurring nucleic acid amplification inhibitors present, (including either a buccal swab, cerebrospinal fluid, feces, lymphatic fluid, a plasma sample, a saliva sample, a serum sample, urine, or a suspension of cells or viruses), or from a treated whole blood source that has naturally occurring nucleic acid amplification inhibitors present, as well as added blood stabilization components that also inhibit nucleic acid amplification. More importantly, these nucleic acids can be released after collection or storage in a manner that enables them to be amplified by conventional techniques such as polymerase chain reaction. In particular, an absorbent material that does not bind nucleic acids irreversibly is impregnated with a chaotropic salt. A biological source sample is contacted with the impregnated absorbent material. Any nucleic acids present in the biological source can be either eluted or resolubilized off the absorbent material.

Methods and devices for collecting and storing clinical samples for genetic analysis

The present invention relates to devices and methods for the collection, storage, and purification of nucleic acids, such as DNA or RNA, from fluid samples for subsequent genetic characterization, primarily by conventional amplification methods. The present invention can be used to collect, store, or purify nucleic acids from a treated whole blood source that has naturally occurring nucleic acid amplification inhibitors present, as well as added blood stabilization components that also inhibit nucleic acid amplification. More importantly, these nucleic acids can be released after collection or storage in a manner that enables them to be amplified by conventional techniques such as polymerase chain reaction. In particular, an absorbent material that does not bind nucleic acids irreversibly is impregnated with a chaotropic salt. A biological source sample is contacted with the impregnated absorbent material. Any nucleic acids present in the biological source can be either eluted or resolubilized off the absorbent material.

Methods and devices for collecting and storing clinical samples for

The invention provides a method for supplying an enzyme substrate to a membrane-based, enzyme-linked reaction, comprising providing an open pore, high liquid retention capacity material impregnated with a predetermined amount of a substrate for the enzyme; and contacting the material with a membrane containing the enzyme-linked reaction under conditions which permit diffusion of the enzyme substrate to sites on the membrane containing the enzyme linked reaction. The invention further provides devices for membrane-based enzyme-linked reactions comprising a porous material impregnated with a predetermined amount of a substrate for the enzyme, wherein the porous material is paper, glass fiber paper, stainless steel mesh, woven and nonwoven nylon, polyester, polyethylene, polypropylene, or fluorocarbon polymers having a porosity ranging from about 5 microns to 5000 microns; and a microporous membrane of cellulose or a cellulose derivative, nylon, polysulfone, polypropylene, PTFE, or PVDF having a porosity ranging from about 0.05 microns to about 12 microns.

Method and devices for delivery of substrate for the detection of

The present invention relates to an optical apparatus and a uniaxial method for rapidly measuring spectroscopically labelled specific binding analytes in a reaction assay mixture that contains unbound label without requiring the physical separation of the unbound label from the reaction mixture or sequential reagant additions and incubations. Moreover, the technique is equally applicable to measurements in either serum or whole blood.

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Spofford, NH, United States of America

Michael A Harvey