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Polymerase Chain Reaction patents

      

This page is updated frequently with new Polymerase Chain Reaction-related patent applications.




 Method for reduction or elimination of false-negative enzyme immunoassay and polymerase chain reaction testing results patent thumbnailMethod for reduction or elimination of false-negative enzyme immunoassay and polymerase chain reaction testing results
Methods and techniques to increase the reliability of detecting virus infections, particularly lymphotropism, to eliminate false negative reactions in testing blood for the presence of lymphotropic viruses during enzyme immunoassay (eia) and polymerase chain reaction (pcr) testing, and to better detect viruses with lymphotropism in biological materials having a concentration of virus particles lower than the sensitivity threshold of existing eia and pcr methods, thereby making the techniques of the present invention more reliable.. .

 Development of novel detergents for use in pcr systems patent thumbnailDevelopment of novel detergents for use in pcr systems
This disclosure relates to novel detergents for use in various procedures including, for example, nucleic acid amplification reactions such as polymerase chain reaction (pcr). Methods for preparing the modified detergents are also described..
Life Technologies Corporation


 Nucleic acid amplificiation techniques and methods for detecting bacterial infection patent thumbnailNucleic acid amplificiation techniques and methods for detecting bacterial infection
Sequence specific dna amplification and analysis techniques are provided. In some aspects, methods of the embodiments comprise amplifying sequence from two regions of a target sequence in the presence of a blocking oligonucleotide (e.g., such as a phosphorothioate-containing oligonucleotide) that hybridizes to the target sequence between the two regions.
Board Of Regents, The University Of Texas System


 Pc board fluidic devices patent thumbnailPc board fluidic devices
Pc board fluidic devices for performing a polymerase chain reaction (pcr) are disclosed. The devices comprise a printed circuit board and a pcr chamber.
California Institute Of Technology


 Methods and kits for sequencing and characterizing protozoa patent thumbnailMethods and kits for sequencing and characterizing protozoa
Disclosed are compositions, kits, and methods for detecting, characterizing, and/or identifying one or more protozoa. Various types of polymerase chain reaction techniques in connection with specifically designed primers can be used to detect a variety of, e.g., pathogenic, protozoa in samples..
Fry Laboratories, Llc


 Field pathogen identification patent thumbnailField pathogen identification
A process for the identification of genetic material in a biological liquid sample and including the steps of injecting into a reaction vessel containing freeze dried pcr reagents and labelled primers sufficient pure water to liquify the reagents and primers; injecting the biological liquid sample into the reaction vessel; subjecting the reaction vessel contents to a cell disruption process, in the said reaction vessel; conducting pathogen specific polymerase chain reaction (pcr) on the contents of the reaction vessel; and monitoring the pcr and determining therefrom the presence of a specific genetic material. A device for performing the process comprises a heat reduction module (hrm); a peltier cell (tec) the base plate whereof is contiguous with the hrm; a reaction vessel receiving heat transfer sleeve contiguous with a working face of the tec; retention means for holding a reaction vessel in the sleeve; and means for driving the tec..
Bg Research Ltd


 Primers and methods for nucleic acid amplification patent thumbnailPrimers and methods for nucleic acid amplification
A primer and method for amplification of a target nucleic acid, the primer adapted to conform into a conformation that dissociates from a complementary strand of dna duplex. The conformation may have a free energy with more favorable thermodynamics than a corresponding dna duplex, such as a b-dna duplex.
Ohio State Innovation Foundation


 Methods for temperature-mediated nested polymerase chain reaction patent thumbnailMethods for temperature-mediated nested polymerase chain reaction
Embodiments of present disclosure are directed to methods for amplifying nucleic acid, comprising two steps: a first step of preparing a reaction mixture comprising the target nucleic acid and a second step of processing the reaction mixture in a thermocycler. During a first phase of the processing step, the thermocycler may be configured to heat the reaction mixture to a first temperature and cool the reaction mixture to a second temperature repeatedly for a first plurality of cycles.
Tetracore, Inc.


 Polymerase chain reaction device and polymerase chain reaction method patent thumbnailPolymerase chain reaction device and polymerase chain reaction method
A pcr device, in which a vessel is filled with a liquid which has a lower specific gravity than a reaction mixture and is immiscible with the reaction mixture, and a control section drives and controls a first heating section and a second heating section so that the liquid in an upper part in the vessel is brought to a first temperature and the liquid in a lower part is brought to a second temperature which is lower than the first temperature, and also drives and controls an electric field generation section to generate an electric field between a lower electrode and an upper electrode so that the reaction mixture in a spherical shape in the liquid moves up and down repeatedly between the upper part and the lower part of the liquid by a coulomb force due to the electric field.. .
Seiko Epson Corporation


 Microchannel chip, pcr method, and heating/cooling control apparatus patent thumbnailMicrochannel chip, pcr method, and heating/cooling control apparatus
A method for performing a polymerase chain reaction (pcr) process on a treatment target liquid using a microchannel chip and a heating/cooling control apparatus is provided. The microchannel chip includes: a first substrate layer that has an introducing channel and a discharging channel; and a second substrate layer that is disposed on the first substrate layer and has a second substrate layer body and a metal film, the second substrate layer body having a microchannel connected to the two channels, the metal film structuring an upper surface of the microchannel.
Panasonic Intellectual Property Management Co., Ltd.


Thermal control device and methods of use

Thermal control devices adapted to provide improved control and efficiency in temperature cycling are provided herein. Such thermal control device can include a thermoelectric cooler controlled in coordination with another thermal manipulation device to control an opposing face of the thermoelectric cooler and/or a microenvironment.
Cepheid

Apparatus and electrical detection of oligonucleotides through pore blockades

Systems and methods for specific nucleic acid (na) sequence detection that do not rely on polymerase chain reaction (pcr) for target sequence amplification and do not require any special reagents other than a complementary sequence capture probe conjugated to spherical beads.. .
The Regents Of The University Of California

Method for reducing primer-dimer amplification

The present invention reduces primer-dimer amplification in a multiplex polymerase chain reaction (pcr). When a first forward primer (f1) and a second reverse primer (r2) have a complementary region at their 3′ends, primer dimers may form.
Pillar Biosciences Inc.

Detection kit for identifying genotype in depression patients and using the same

The present invention relates to a rs6311 test kit, which includes a probe, a primer, and a polymerase chain reaction solution, wherein said probe sequence is as follows: rs6311t-fam: ctgtgagtgtctggc (seq. Id.

Method for evaluation of viability of viruses with lymphotropism properties

Methods and techniques to increase the reliability of detecting virus infections, particularly lymphotropism, to eliminate false negative reactions in testing blood for the presence of lymphotropic viruses during enzyme immunoassay (eia) and polymerase chain reaction (pcr) testing, and to better detect viruses with lymphotropism in biological materials having a concentration of virus particles lower than the sensitivity threshold of existing eia and pcr methods, thereby making the techniques of the present invention more reliable.. .

Camera imaging system for a fluid sample assay and using same

Apparatuses and for causing a point-of-care polymerase chain reaction and analyzing the polymerase chain reaction at the point-of-care, particularly when unwanted bubbles are present during the polymerase chain reaction, are described herein. In a general embodiment, a device for analysing a polymerase chain reaction in a fluid sample includes a current source configured to cause the polymerase chain reaction by heating the fluid sample within a target zone, a camera imaging device configured to record a plurality of images of the fluid sample in the target zone while the current source causes the polymerase chain reaction, and a controller configured to (i) distinguish wanted objects in the plurality of images from an unwanted object in the plurality of images, and (ii) determine whether the fluid sample tests positive or negative for a bacteria or virus based on the wanted objects..
Fluxergy, Llc

Device for analyzing a fluid sample and use of test card with same

Apparatuses and methods related to a point-of-care portable assay device and the use thereof with a test card are described herein. In a general embodiment, a device for monitoring a polymerase chain reaction in a fluid sample includes a vacuum source configured to pull the fluid sample through a microchannel, a current source configured to cause the polymerase chain reaction while the fluid sample is located within the microchannel, a light source configured to illuminate the polymerase chain reaction while the current source causes the polymerase chain reaction, a camera imaging device configured to record an image of the polymerase chain reaction while the light source illuminates the polymerase chain reaction, and a controller configured to analyze the image of the polymerase chain reaction and output a resulting analysis of the polymerase chain reaction..
Fluxergy, Llc

Immunoglobulin variable region libraries

Antigen-specific immunoglobulin v-regions are identified from a library of nucleic acids amplified using polymerase chain reaction using leader sequence-specific forward primers. The use of leader sequence primers allows all v-region sequences to be amplified (including those with extensive 5′ end mutations) without loss of the original 5′ v gene segment sequence.
Xbiotech, Inc.

Dna methylation analysis

Disclosed herein are methods for determining whether one or more cpg dinucleotides are methylated using linear after the exponential polymerase chain reaction (“late-pcr”) or linear-expo-linear polymerase chain reaction (“lel-pcr”).. .
Brandeis University

Detection of infectious agents from environmental air dust

Embodiments of the present disclosure are directed to systems and methods for collection and analysis of environmental air dust (ead) within an individually ventilated cage rack (ivr) environment for detecting pathogens. The method includes collection of an ead sample by a collection media, isolation of a plurality of nucleic acids (e.g., rna and/or dna) representative of one or more infectious agents from the ead sample, optional reverse transcription of rna to cdna if the isolated nucleic acids contain rna, amplification of the cdna and/or dna (e.g., by polymerase chain reaction (pcr)), and assay interpretation.
Allentown Inc.

Quantitative reverse transcription polymerase chain reaction kit using tissue and blood for early diagnosis and screening test for therapeutic agent of breast cancer

There are provided a method for an early diagnosis and a screening test for a therapeutic agent of breast cancer by using tissue and blood, and a quantitative reverse transcription polymerase chain reaction kit for same. According to the present invention, it is possible to provide help in more effective treatment and diagnosis of breast cancer through expression rates of her2 expressed in blood and a cancer-related marker in the blood in addition to a tissue specimen..
University Industry Foundation, Yonsei University Wonju Campus

Assay for chlamydia trachomatis by amplification and detection of chlamydia trachomatis pmpa gene

A region of the chlamydia trachomatis pmpa gene has been identified which is useful for performing amplification assays to determine specifically whether c. Trachomatis is present in the sample being tested.
Becton, Dickinson And Company

Non-thermal cycling for polymerase chain reaction

Techniques, systems, and devices are disclosed for non-thermal cycling of polymerase chain reaction (pcr). In one aspect, a method for cycling pcr includes receiving an electrolytic fluid including ions, primers, polymerase enzymes, nucleotides, and a double-stranded nucleic acid in a fluid chamber having a first electrode and a second electrode, applying an electric field across the first and the second electrodes to generate a first ph level of the electrolytic fluid to denature the double-stranded nucleic acid to at least partial single strands, and applying a second electric field across the first and second electrodes to produce a second ph level of the electrolytic fluid, in which the second ph level enables binding of a polymerase enzyme and a primer with a corresponding segment of the single strands..
The Regents Of The University Of California

Single-step dna preparation for polymerase chain reaction using magnetic chitosan microparticles

The present invention relates to a method for concentrating a biological sample containing nucleic acids by using magnetic chitosan microparticles and subsequently performing a pcr reaction on the nucleic acids captured on the microparticles. The chitosan microparticles added to the biological sample at a pcr compatible ph are mechanically agitated to provide for cell lysis and simultaneous dna capture, and then serve as a solid support for the nucleic acid template during the pcr reaction.
Canon U.s. Life Sciences, Inc.

Thermal cycler apparatus and related methods

An apparatus for thermal cycling can transfer heat uniformly and efficiently. The apparatus can be used in a method that reduces condensation on sample wells.
Biofire Defense, Llc

Microfluidic flow monitoring

The present invention relates to systems and methods of monitoring velocity or flow in channels, especially in microfluidic channels. In some embodiments, the present invention relates to systems and methods of monitoring velocity or flow rate in systems and methods for performing a real-time polymerase chain reaction (pcr) in a continuous-flow microfluidic system..
Canon U.s. Life Sciences, Inc.

Method for testing a mutant gene through real time polymerase chain reaction using inhibition of 5'-flap endonuclease activity

The present invention relates to a method for detecting single nucleotide polymorphism (snp) using a feature that the 5′-flap endonuclease (fen) activity of dna polymerase is inhibited when a probe complementarily binds to the end of a polymerase chain reaction (pcr) product. More specifically, the present invention relates to a novel method wherein it was verified that, when a probe used for a real-time pcr complementarily binds to the end site of a pcr product, the 5′-fen activity of thermostable dna polymerase to the probe is inhibited, and thus when such a feature is used to make a design such that an snp site to be detected is located at the 5′-end site of the probe, the 5′-flap formation is induced according to the allele, thereby allowing effective snp detection..
Genotech Corp.

Method for detecting chromosomal rearrangements

An object of the invention is an in vitro method for detecting chromosomal rearrangements between at least two specific chromosomal regions in a biological sample of a human subject, which comprises the steps of: a) isolating deoxyribonucleic acid (dna) molecules comprising said specific chromosomal regions from said biological sample, wherein said dna molecules have an average length of x base pairs; b)amplifying the dna molecules of step a) by a multiplex polymerase chain reaction assay, said assay comprising at least two sets of primers, wherein each set of primers is capable of hybridizing with a specific reference chromosomal region, and each set of primer comprises a plurality of primers, said primers being capable of hybridizing to a nucleic acid strand of one of the said specific chromosomal regions at sites regularly spaced of less than x/2 base pairs; and hybridizing the product of the amplification of step b) with at least one set of nucleic probes.. .
Assistance Publique - Hopitaux De Paris

Fast pcr heating

Provided herein is a microplate for polymerase chain reaction (pcr), comprising a substrate formed of a material that is susceptible to heating pcr samples upon the application of an electromagnetic field and/or electromagnetic energy to said substrate. The substrate provides a pcr ramp rate of at least 5° c./second upon the application of an electromagnetic field and/or electromagnetic energy to said substrate..
Bjs Ip Ltd.

Channels with cross-sectional thermal gradients

Provided herein are systems, devices, and methods for generating thermal gradients in channels and uses thereof. In particular, provided herein are system, methods, and devices employing first and second thermal layers positioned around a channel in order to create a thermal gradient across a cross-section of the channel having, for example, a nucleic acid denaturation zone, a nucleic acid annealing zone, and a nucleic acid polymerization zone.
Abbott Molecular Inc.

Methods and systems for volume variation modeling in digital pcr

A method for performing digital polymerase chain reaction (dpcr) is provided. The method includes partitioning a biological sample volume including a plurality of target nucleic acids into a plurality of partitions, where at least one partition includes at least one target nucleic acid.
Life Technologies Corporation

Method of preparing a reaction mixture and related products

The invention relates to a method of preparing a reaction mixture for polymerase chain reaction (pcr) assay and a solution set for pcr. The method comprises providing a sample solution comprising a biological sample to be amplified in said pcr assay and first colorant providing the solution a first color, providing a reagent solution comprising at least one other substance required for performing said assay and second colorant providing the solution a second color different from the first color, and mixing the sample solution and the first reagent solution for providing a mixed solution to be subjected to the pcr process, the mixed solution having, due to said first and second colorants, a third color different from the first and second colors.
Thermo Fisher Scientific Baltics Uab

Methods to distinguish waldenstrom's macroglobulinemia from igm monoclonal gammopathy of undetermined significance

Diagnostic assays for discriminating waldenstrom's macroglobulinemia from igm monoclonal gammopathy of undetermined significance are provided. The method comprises obtaining a biological sample from a subject in need thereof, performing an allele-specific polymerase chain reaction assay to determine in the biological sample a level of a transcript comprising a mutation at position 38182641 in chromosome 3p22.2, and providing a report indicating whether delta ct value of the biological sample is less than a reference value, wherein the subject has waldenstrom's macroglobulinemia if the delta ct value is less than the reference value..
Dana-farber Cancer Institute, Inc.

Nucleic acid detection and quantification

The present invention relates to methods and uses for the detection or quantification of newly-synthesized double-stranded target nucleic acid molecules in a sample during quantitative real-time polymerase chain reaction (qpcr) amplification. According to the invention, an intercalating dye recognizing double-stranded dna molecules with higher affinity than single-stranded dna molecules and a fluorophore-labeled oligonucleotide-probe being sequence specific for a target nucleic acid molecule are simultaneously employed, thus enabling quantification a specific target and total amount of a mixed nucleic acid population, and enabling assessing the cause of suboptimal pcr performance..
Qiagen Gmbh

Monitoring dna amplification

A method and kits are provided for nucleic acid quantification and discrimination using surface plasmon resonance (spr). The method provided is able to significantly enhance the detection limit and multiplex the discrimination assay using the melting properties of the target dna on top of standard pcr reaction.
Katholieke Universiteit Leuven

Methods for full-length amplification of double-stranded linear nucleic acids of unknown sequences

An adaptor for use in amplifying all linear, double-stranded nucleic acid molecules of unknown sequences in a sample is disclosed. The adaptor consists of: (1) the first oligonucleotide (p-oligo) with a phosphate at the 5′ end and without an additional thymine nucleotide at the 3′ end; and (2) the second oligonucleotide (t˜oligo) with an extra 3′-t and without a 5′-phosphate.
Academia Sinica

Stabilized reverse transcriptase fustion proteins

Stabilized reverse transcriptase fusion proteins including a thermostable reverse transcriptase connected to a stabilizer protein are described. Attaching the stabilizer protein to the thermostable reverse transcriptase stabilizes the fusion protein and can aid in its purification, provide increased solubility, allow for longer storage, or allow the fusion protein to be used under more rigorous conditions such as higher temperature.
Board Of Regents, The University Of Texas System

Selective detection mycobacterium tuberculosis and nontuberculous mycobacteria and kit using same

The present invention relates to a method for specifically detecting mycobacterium tuberculosis and nontuberculous mycobacteria by simultaneously amplifying and analyzing target genes using various primers and probes, and a kit using same. The method of the present invention is capable of selectively detecting mycobacterium tuberculosis and nontuberculous mycobacteria with very high efficiency through a multiplex real-time polymerase chain reaction (pcr) using probes and primers specific to target genes (particularly, is6110, 16s rrna and β-actin).
Hyunil-bio Co.

Pcr module, pcr system having the same, and inspecting using the same

A polymerase chain reaction (pcr) module is detachably combined with a reader system. The reader system includes a central processing unit (cpu) receiving a photo sensing signal to calculate gene amplification amount in real time and generating a temperature control signal based on a temperature signal and a temperature control information.
Optolane Technologies Inc.

Porous structure and manufacturing same

A porous structure according to the present invention has a polymerase chain reaction (pct) primer inside pores thereof, and hence, even an inner portion thereof can be used unlike general structures of which only surfaces are used for amplification and detection, thereby maximizing reactivity. In addition, the differentiating of the kinds of primers contained in respective structures leads to detection of several kinds of target nucleic acids at the same and real-time analysis thereof at the same time, and thus is useful for multiplex real-time pcr..
Korea Institute Of Science And Technology

Analysis unit for performing a polymerase chain reaction, operating such an analysis unit, and producing such an analysis unit

An analysis unit for performing a polymerase chain reaction includes a cover element, a bottom element, at least one fluid channel, at least one pressure channel, and a film. The bottom element has at least one bottom hollow that defines a fluid-accommodating surface and an arrangement of microcavities, and that faces toward the cover element.
Robert Bosch Gmbh

Thermocycler

The present invention provides a thermocycler comprising: a rotatable platform having a plurality of reaction wells or being adapted to receive a plurality of reaction containers, wherein the rotatable platform and/or the reaction wells are formed, at least in part, of a material which is adapted to be inductively heated by exposure to electromagnetic energy. An electromagnetic energy source is provided and is configured to direct electromagnetic energy at the rotatable platform, wherein the electromagnetic energy source surrounds a sufficient amount of the rotatable platform in order to heat the entire platform substantially simultaneously.
Bio Molecular Systems Pty Ltd

Adaptive thermal block temperature control method and system

Aspects of the present teachings describe a method and apparatus for automatically controlling a block temperature to reduce undershooting and overshooting of the temperatures of a sample contained in the block and participating in a polymerase chain reaction (pcr). The adaptive thermal block temperature control begins when a sample temperature enters a sample window region between a preliminary setpoint temperature and a target setpoint temperature for the sample.
Applied Biosystems, Llc

Varietal counting of nucleic acids for obtaining genomic copy number information

A method for obtaining from genomic material genomic copy number information unaffected by amplification distortion, comprising obtaining segments of the genomic material, tagging the segments with substantially unique tags to generate tagged nucleic acid molecules, such that each tagged nucleic acid molecule comprises one segment of the genomic material and a tag, subjecting the tagged nucleic acid molecules to amplification by polymerase chain reaction (pcr), generating tag associated sequence reads by sequencing the product of the pcr reaction, assigning each tagged nucleic acid molecule to a location on a genome associated with the genomic material by mapping the subsequence of each tag associated sequence read corresponding to a segment of the genomic material to a location on the genome, and counting the number of tagged nucleic acid molecules having a different tag that have been assigned to the same location on the genome, thereby obtaining genomic copy number information unaffected by amplification distortion.. .
Cold Spring Harbor Laboratory

Analysis unit for carrying out a polymerase chain reaction, analysis device, operating such an analysis unit, and producing such an analysis unit

An analysis unit is configured to carry out a polymerase chain reaction. The analysis unit includes a lid element with at least one lid recess and a base element with at least one base recess.
Robert Bosch Gmbh

Method for steadying thermal convection flow field in solution during thermal convective polymerase chain reaction

A method for steadying a thermal convection flow field in a pcr reaction solution during a thermal convective polymerase chain reaction (pcr) includes steps as follows. A pcr tube is provided.
Genereach Biotechnology Corp.

Dry composition of reaction compounds with stabilized polymerase

The present invention provides methods to obtain dry compositions of reaction compounds that maintain the biological activity of the compounds upon re-solubilization after a certain storage time. Preferably, the dry composition comprises a polymerase, and the dry composition is usable for polymerase chain reaction (pcr) amplification after re-solubilization..
Roche Molecular Systems, Inc.

Non-motorized optical multiplexing for the simultaneous detection of dna target amplicons in a polymerase chain reaction solution

A multiplexed polymerase chain reaction (pcr) dna detection system and a method for dna detection within the pcr system are provided. The pcr dna detection system includes a color charge-coupled device (ccd) camera, fluorophore-quencher probes and an imaging chamber.
Agency For Science, Technology And Research

Method of de-differentiating and re-differentiating somatic cells using rna

Rna prepared by in vitro transcription using a polymerase chain reaction (pcr)-generated template can be introduced into a cell to modulate cell activity. This method is useful in de-differentiating somatic cells to pluripotent, multipotent, or unipotent cells; re-differentiating stem cells into differentiated cells; or reprogramming of somatic cells to modulate cell activities such as metabolism.
Yale University

Methods and devices for non-thermal polymerase chain reaction

Methods and devices for non-thermal pcr amplification of nucleic acid sequences. An electrical potential is applied to cause non-thermal separation of strands of a double-stranded nucleic acid or double-stranded nucleic acid/primer extension product..
The Regents Of The University Of California

Porcine torque teno virus vaccines and diagnosis

The present invention provides four purified preparation containing a polynucleic acid molecule encoding porcine torque teno virus (pttv) genotypes or subtypes pttv1a-va, pttv1b-va, pttv2b-va, and pttv2c-va. The present invention also provides infectious dna clones, biologically functional plasmid or viral vector containing the infectious nucleic acid genome molecule of the same.
Virginia Tech Intellectual Properties, Inc.



Polymerase Chain Reaction topics:
  • Polymerase Chain Reaction
  • Polymerase
  • Nucleic Acid
  • Nucleotide
  • Quantitative
  • Amplification
  • Chlamydia Trachomatis
  • Nucleic Acids
  • Transcription
  • Oligonucleotide
  • Sequencing
  • Real Time Pcr
  • Differentiation
  • Lymphogranuloma Venereum
  • Recombinant


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    This listing is a sample listing of patent applications related to Polymerase Chain Reaction for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Polymerase Chain Reaction with additional patents listed. Browse our RSS directory or Search for other possible listings.


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