Patent application number | Description | Published |
20080228589 | Methods For Placing, Accepting, And Filling Orders For Products and Services - Methods and systems for ordering assays which detect SNPs or gene expression are provided. The methods use PCR and RT-PCR procedures. Collections of stock assays are assembled using pre- and post-manufacturing quality control procedures and made available to consumers via the Internet. In addition, custom assays are prepared upon order from the consumer and these assays are also prepared using pre- and post-manufacturing quality control procedures. The assays are then delivered to the consumer. | 09-18-2008 |
20090071830 | Systems and Methods for Isolating Nucleic Acids - A system for collecting target nucleic acids from a sample can include at least one sample chamber configured to receive a sample containing target nucleic acids and other material, at least one collection chamber removably mountable relative to the at least one sample chamber and configured to collect target nucleic acids separated from the other material, a filter removably mountable relative to the at least one sample chamber and configured to be disposed between the at least one sample chamber and the at least one collection chamber when the at least one collection chamber is mounted relative to the at least one sample chamber. The system may further include a pair of electrodes configured to generate an electric field sufficient to cause target nucleic acids in the at least one sample chamber to migrate via electrophoresis from the at least one sample chamber through the filter into the at least one collection chamber, wherein the filter may be configured to permit passage of target nucleic acids and to block passage of material of a size larger than the target nucleic acids. | 03-19-2009 |
20090239233 | SINGLE-TUBE, READY-TO-USE ASSAY KITS, AND METHODS USING SAME - An assay kit is provided that includes assay reagents stored in a single-tube container, and a data storage medium containing information about the contents of the container. Methods are provided for using the data provided with the kit to direct instruments and/or processes, for example, to control an instrument to perform amplification and/or sequencing reactions. | 09-24-2009 |
20090239290 | SINGLE-TUBE, READY-TO-USE ASSAY KITS, AND METHODS USING SAME - An assay kit is provided that includes assay reagents stored in a single-tube container, and a data storage medium containing information about the contents of the container. Methods are provided for using the data provided with the kit to direct instruments and/or processes, for example, to control an instrument to perform amplification and/or sequencing reactions. | 09-24-2009 |
20100173293 | High Density Sequence Detection Methods - A method for performing PCR on a liquid sample comprising a plurality of polynucleotide targets, wherein each polynucleotide target is present at very low concentration within the sample. The method comprises applying PCR reactants to the surface of a substrate to produce a plurality of reaction spots on the surface of the substrate; loading the liquid sample and a PCR reagent mixture onto the reaction spots; forming a sealed reaction chamber, having a volume of less than about 20 nanoliters, over each of the reaction spots; and amplifying the sample. | 07-08-2010 |
20100203525 | DETECTION OF GENE DUPLICATIONS - Methods of detecting a candidate genetic anomaly such as a candidate duplication in a genome are disclosed. The methods comprise quantifying fluorogenic assays for alleles of a genetic locus from a plurality of individual genomes, identifying ranges of fluorescent intensities indicative of individual genomes homozygous for a first allele, homozygous for a second allele, or heterozygous for both alleles, and identifying individual genomes in which the fluorescence intensities are outside the range of intensities indicative of homozygosity or heterozygosity for the genetic locus. | 08-12-2010 |
20100276580 | Quantitative Calibration Method and System for Genetic Analysis Instrumentation - Aspects of the present invention provide a method and apparatus of generating a calibration matrix for a spectral detector instrument. A calibration plate contains one or more dye mixtures in each well of the calibration plate at known absolute concentration. From the calibration plate, aspects of the present invention are used to prepare a concentration matrix based on the dyes used in the assay and the different dye mixtures used in the calibration plate. An excitation source exposes the calibration plate causing the spectral species in each of the wells to fluoresce. The emission spectra for the different dye mixtures of dyes as gathered by the spectral detector instrument at different points in the range of spectra is used to generate a spectral matrix. Bilinear calibration is performed on the concentration matrix and the spectral matrix as to determine a calibration matrix relating spectra directly to absolute concentrations. | 11-04-2010 |
20100291557 | BINARY PROBE AND CLAMP COMPOSITION AND METHODS FOR TARGET HYBRIDIZATION DETECTION - Binary probe and clamp compositions conduct methods for target hybridization detection. Where the probe is a substrate for exonuclease cleavage, the composition provides quantitation and detection of PCR products, by real-time and end-point measurements. Where the probe is an amplification primer, the composition provides an improved method for labelling and detection of PCR products. Probes and clamps may be labelled with fluorescent dyes, quenchers, hybridization-stabilizing moieties, chemiluminescent dyes, and affinity ligands. Clamps may be nucleic acid analogs, such as 2-aminoethylglycine PNA. | 11-18-2010 |
20100317062 | HOT START REVERSE TRANSCRIPTION BY PRIMER DESIGN - The present teachings provide methods, compositions, and kits for performing primer extension reactions. In some embodiments, a reverse transcription reaction is performed on a target polynucleotide with a hot start primer comprising a blunt-ended self-complementary stem, and a loop, and extension products form at high temperatures but reduce extension product formation at low temperatures. | 12-16-2010 |
20110039725 | DYNAMIC ARRAY ASSAY METHODS - High throughput methods are used that combine the features of using a matrix-type microfluidic device, labeled nucleic acid probes, and homogenous assays to detect and/or quantify nucleic acid analytes. The high throughput methods are capable of detecting nucleic acid analyes with high PCR and probe specificity, producing a low fluorescence background and therefore, a high signal to noise ratio. Additionally, the high throughput methods are capable of detecting low copy number nucleic acid analyte per cell. | 02-17-2011 |
20110236984 | DNA SEQUENCING METHODS AND DETECTORS AND SYSTEMS FOR CARRYING OUT THE SAME - In some embodiments, an analyte detection system is provided that includes a nanochannel, an electrode arrangement, and a plurality of nanoFET devices disposed in the nanochannel. A plurality of nucleic acid base detection components can be used that include a plurality of nanopores, a plurality of nanochannels, a plurality of hybridization probes, combinations thereof, and the like. According to other embodiments of the present teachings, different coded molecules are hybridized to a target DNA molecule and used to detect the presence of various sequences along the target molecule. A kit including mixtures of coded molecules is also provided. In some embodiments, devices including nanochannels, nanopores, and the like, are used for manipulating movement of DNA molecules, for example, in preparation for a DNA sequencing detection. Nanopore structures and methods of making the same are also provided as are methods of nucleic acid sequencing using the nanopore structures. Surface-modified nanopores are provided as are methods of making them. In some embodiments, surfaced-modified nanopores for slowing the translocation of single stranded DNA (ssDNA) through the nanopore are provided, as are nanopores configured to detect each of a plurality of different bases on an ssDNA strand. | 09-29-2011 |
20110251083 | Multiplexed Amplification of Short Nucleic Acids - The present teachings provide methods, compositions, and kits for reverse transcribing and amplifying small nucleic acids such as micro RNAs. High levels of multiplexing are provided by the use of a zip-coded stem-loop reverse transcription primer, along with a PCR-based pre-amplification reaction that comprises a zip-coded forward primer. Detector probes in downstream decoding PCRs can take advantage of the zip-code introduced by the stem-loop reverse transcription primer. In some embodiments, further amplification is achieved by cycling the reverse transcription reaction. The present teachings also provide compositions and kits useful for performing the reverse transcription and amplification reactions described herein. | 10-13-2011 |
20120115143 | Universal Probe Assay Methods - Reagents and methods are provided for detecting the presence of a target polynucleotide in a sample are disclosed. In one aspect, a method for producing a labeled amplification product by amplifying a target nucleic acid sequence to produce an amplification product comprising the target sequence, a first probe-binding sequence 5′ to the target sequence, and a second probe-binding sequence 3′ to the target sequence, thereby producing an amplification product; and hybridizing a first detection probe to the amplification product, said first detection probe comprising a first segment that hybridizes to the first probe-binding sequence and a second segment that hybridizes to the second probe-binding sequence, thereby producing a labeled amplification product is disclosed. | 05-10-2012 |
20120172252 | High Density Sequence Detection Methods - A method for performing PCR on a liquid sample comprising a plurality of polynucleotide targets, wherein each polynucleotide target is present at very low concentration within the sample. The method comprises applying PCR reactants to the surface of a substrate to produce a plurality of reaction spots on the surface of the substrate; loading the liquid sample and a PCR reagent mixture onto the reaction spots; forming a sealed reaction chamber, having a volume of less than about 20 nanoliters, over each of the reaction spots; and amplifying the sample. | 07-05-2012 |
20120288857 | MULTIFUNCTIONAL PROBE-PRIMERS - Methods and reagents for detection and analysis of nucleic acids are provided. Certain methods involves an encoding amplification in which a target sequence is associated with probe-binding sequences and optionally with indexing sequences, (2) an optional distribution step in which the product of the encoding amplification is split into multiple aliquots, and (3) a decoding and detection step in which the presence, absence, quantity, or relative amount of the target sequence in the aliquots is determined. The detection step makes use of a multifunctional “self-digesting” molecular probe comprising a primer polynucleotide and a probe oligonucleotide, linked in a 5′-5′ orientation. | 11-15-2012 |
20120303472 | METHODS FOR PLACING, ACCEPTING, AND FILLING ORDERS FOR PRODUCTS AND SERVICES - Methods and systems for ordering assays which detect SNPs or gene expression are provided. The methods use PCR and RT-PCR procedures. Collections of stock assays are assembled using pre- and post-manufacturing quality control procedures and made available to consumers via the Internet. In addition, custom assays are prepared upon order from the consumer and these assays are also prepared using pre- and post-manufacturing quality control procedures. The assays are then delivered to the consumer. | 11-29-2012 |
20130022973 | Multiplex Amplification for the Detection of Nucleic Acid Variations - Kits, primers, and methods are provided herein for detecting relative target source to reference source ratios in a biological sample, by distributing the biological sample into discrete subsamples, wherein the biological sample includes, a plurality of target molecules on a target source; and a plurality of reference molecules on a reference source; providing target primers directed to one or more of the plurality of target molecules and reference primers directed to one or more of the plurality of reference molecules; performing digital amplification with the target primers and the reference primers; and detecting the presence or absence of amplified target products with target probes and detecting the presence or absence of amplified reference products with reference probes, wherein the ratio of amplified target products to amplified reference products is indicative of a relative amount of target source to reference source in a biological sample. | 01-24-2013 |
20130045881 | Probe Based Nucleic Acid Detection - The invention provides a method for detecting a target nucleotide sequence by tagging the nucleotide sequence with a nucleotide tag, providing a probe oligonucleotide with a melting temperature Tm | 02-21-2013 |
20130184171 | MULTIPLEXED AMPLIFICATION OF SHORT NUCLEIC ACIDS - The present teachings provide methods, compositions, and kits for reverse transcribing and amplifying small nucleic acids such as micro RNAs. High levels of multiplexing are provided by the use of a zip-coded stem-loop reverse transcription primer, along with a PCR-based pre-amplification reaction that comprises a zip-coded forward primer. Detector probes in downstream decoding PCRs can take advantage of the zip-code introduced by the stem-loop reverse transcription primer. In some embodiments, further amplification is achieved by cycling the reverse transcription reaction. The present teachings also provide compositions and kits useful for performing the reverse transcription and amplification reactions described herein. | 07-18-2013 |
20140186827 | ASSAYS FOR THE DETECTION OF GENOTYPE, MUTATIONS, AND/OR ANEUPLOIDY - The present invention provides amplification-based methods for detection of genotype, mutations, and/or aneuploidy. These methods have broad applicability, but are particularly well-suited to detecting and quantifying target nucleic acids in free fetal DNA present in a maternal bodily fluid sample. | 07-03-2014 |
20140315197 | MULTIFUNCTIONAL PROBE-PRIMERS - Methods and reagents for detection and analysis of nucleic acids are provided. Certain methods involves an encoding amplification in which a target sequence is associated with probe-binding sequences and optionally with indexing sequences, (2) an optional distribution step in which the product of the encoding amplification is split into multiple aliquots, and (3) a decoding and detection step in which the presence, absence, quantity, or relative amount of the target sequence in the aliquots is determined. The detection step makes use of a multifunctional “self-digesting” molecular probe comprising a primer polynucleotide and a probe oligonucleotide, linked in a 5′-5′ orientation. | 10-23-2014 |