摘要:
This disclosure provides for methods and reagents for rapid multiplex RPA reactions and improved methods for detection of multiplex RPA reaction products. In addition, the disclosure provides new methods for eliminating carryover contamination between RPA processes.
摘要:
Provided is a sensitive method to specifically detect nucleic acid sequences using a combination of DNA replication based signal amplification (e.g., PCR) and lateral flow analyte detection. The disclosed method uses a dual-labeled DNA probe complementary to a region of the target DNA sequence. Cleavage of the probe, caused by the presence of the amplified DNA target, is detected using lateral flow methods.
摘要:
This disclosure provides for methods and reagents for rapid multiplex RPA reactions and improved methods for detection of multiplex RPA reaction products. In addition, the disclosure provides new methods for eliminating carryover contamination between RPA processes.
摘要:
Assays and methods including mobile tagged single stranded nucleic acid reagents pre-loaded on an analysis device, which are preferably tagged, but not labeled and are complementary to a strand (preferably the anti-sense strand in double stranded DNA targets) of the target nucleic acid. The assay also includes a running buffer that includes a dye or other detectable label that nonspecifically binds only to double stranded nucleic acids. In addition, the analysis device includes a detection zone including one or more test zones that have an immobilized tag that binds to the tag on the mobile nucleic acid reagent.
摘要:
Described are methods and kits for detecting cytomegalovirus DNA in liquid and dried blood samples. Primer and probe combinations for CMV detection are described as well as methods for isolating DNA from blood samples.
摘要:
In some embodiments, a strand displacement system is provided. Such a system may include a first nucleic acid catalyst molecule; a nucleic acid gate molecule, wherein the first nucleic acid catalyst molecule binds the nucleic acid gate molecule forming a nucleic acid gate-catalyst complex and releases an output molecule; and a nucleic acid sink molecule. The nucleic acid sink molecule sequesters a putative second nucleic acid catalyst, wherein the second nucleic acid catalyst differs from the first nucleic acid catalyst molecule by at least one nucleotide. In some aspects, the first nucleic acid catalyst may include a biomarker of interest or a nucleic acid aptamer which binds an amino acid-based biomarker of interest.
摘要:
Provided are a method and a kit for accurately and rapidly detecting ten types of targeting pneumonia bacteria: Streptococcus pneumoniae, Haemophilus influenzae, Mycoplasma pneumoniae, Chlamydophila pneumoniae, Legionella pneumophila, Klebsiella pneumoniae, Pseudomonas aeruginosa, Moraxella catarrhalis, methicillin-resistant Staphylococcus aureus (MRSA), and Staphylococcus aureus. A set of primer pairs directed to their respective target regions contained in the DnaJ gene, etc., of the ten types of pneumonia causative bacteria is designed for the ten bacterial strains and used to amplify gene products. A set of bacterial strain-specific probe pairs is further designed for the ten bacterial strains such that the probe pairs hybridize with the amplification products via sequences in the respective target regions differing from the sequences hybridized by the set of primer pairs. A first probe-bound labeled high molecular carrier in which plural types of first probes for the pneumonia bacteria are bound to a labeled high molecular carrier and a solid-phase second probe-carrying developing support are used as the set of probe pairs to perform nucleic acid chromatography.
摘要:
The invention provides methods of detecting a nucleic acid. The methods comprise contacting the nucleic acid with one or more types of particles having oligonucleotides attached thereto. In one embodiment of the method, the oligonucleotides are attached to nanoparticles and have sequences complementary to portions of the sequence of the nucleic acid. A detectable change (preferably a color change) is brought about as a result of the hybridization of the oligonucleotides on the nanoparticles to the nucleic acid. The invention also provides compositions and kits comprising particles. The invention further provides methods of synthesizing unique nanoparticle-oligonucleotide conjugates, the conjugates produced by the methods, and methods of using the conjugates. In addition, the invention provides nanomaterials and nanostructures comprising nanoparticles and methods of nanofabrication utilizing nanoparticles. Finally, the invention provides a method of separating a selected nucleic acid from other nucleic acids.
摘要:
This disclosure provides for methods and reagents for rapid multiplex RPA reactions and improved methods for detection of multiplex RPA reaction products. In addition, the disclosure provides new methods for eliminating carryover contamination between RPA processes.
摘要:
The present invention is directed to methods and apparatus for detection of one or more analytes. Analytes include agents or components of infectious agents such as pathogenic virus, as well as enzymes, proteins and biomarkers.