摘要:
A method and apparatus for real-time, simultaneous, quantitative measurement for detecting a single nucleotide polymorphism in a target nucleic acid is provided. This method involves combining a polymerase chain reaction (PCR) technique with invader assay technique.
摘要:
A method and apparatus for determining the concentration of an analyte in a sample is provided. This method involves combining enhanced chemiluminescence with microchip capillary electrophoresis or microchip liquid chromatography.
摘要:
A method and apparatus for determining the concentration of one or more microbes in a sample is provided. This method involves filtering a sample through a filter inside a sample tube to retain the one or more microbes on the filter. The resulting filtrate, which contains or produces adenosine triphosphate, is passed through the sample tube and enters the reporter region. In the reporter region, the adenosine triphosphate in the filtrate comes in contact with a transparent porous matrix, which includes a luciferin-luciferase complex. The adenosine triphosphate interacts with the luciferin-luciferase complex to provide light response, which is measured by a detector. The light response is compared with a calibration curve to determine the total concentration of one or more microbes in a sample.
摘要:
A method and apparatus for real-time, simultaneous, qualitative measurement of one or more single nucleotide polymorphisms in one or more target nucleic acids is provided. This method involves combining a polymerase chain reaction (PCR) technique with an evanescent wave technique.
摘要:
An apparatus includes a porous membrane for retaining antigens from a sample as the sample passes through the membrane. The apparatus also includes a first binding region within the membrane. The first binding region includes antibodies associated with a first antigen of interest. At least some of the antigens retained in the membrane are brought into contact with the first binding region by applying an electrophoresis field across the membrane. The porous membrane could also include an electrophoresis buffer. A presence of the first antigen of interest could be detected by exposing the first binding region to a chemiluminescent reagent, and a quantity of the first antigen of interest could be determined by performing a chemiluminescent assay on the binding region.
摘要:
An apparatus includes a porous membrane for retaining antigens from a sample as the sample passes through the membrane. The apparatus also includes a first binding region within the membrane. The first binding region includes antibodies associated with a first antigen of interest. At least some of the antigens retained in the membrane are brought into contact with the first binding region by applying an electrophoresis field across the membrane. The porous membrane could also include an electrophoresis buffer. A presence of the first antigen of interest could be detected by exposing the first binding region to a chemiluminescent reagent, and a quantity of the first antigen of interest could be determined by performing a chemiluminescent assay on the binding region.
摘要:
A multi-channel microarray reader has a light source carried by a first supporting stage, a second supporting stage having a plurality of reaction assembly receiving positions, each position to receive a reaction assembly, wherein each reaction assembly includes a reaction chamber and an optical substrate to support a microarray chip, and wherein the reaction chamber and the optical substrate encapsulate a buffer solution. The reader also includes an imaging sensor positioned to detect fluorescence emitted from a single microarray chip and a motion control module to position at least one of the first and second supporting stages to cause a selected microarray chip to receive energy emitted from the light source and to position the imaging sensor to receive fluorescence from that microarray chip.
摘要:
A programmable probe design of DNA micro array and detection methodology is provided. DNA probes, which are complemented with the target DNA, are designed and classified into groups according to optimum hybridization temperature. The probes are arrayed by the group and immobilized on the substrate surface of the DNA micro array. The control system, imaging system and temperature control system are programmed to cooperate with each other during the detection process. This design increases the detection capabilities of the parallel-analysis system.
摘要:
A reactor for the quantitative analysis of target nucleic acids using an evanescent wave detection technique and a method of use thereof is provided. The reactor includes a substrate with a cavity, a buffer layer arranged over the substrate; a cover plate arranged over the buffer layer, and inlet and outlet ports. The reactor is thermally and chemically stable for PCR processing and suitable for an evanescent wave detection technique.
摘要:
A method and apparatus for real-time, simultaneous, qualitative measurement of one or more single nucleotide polymorphisms in one or more target nucleic acids is provided. This method involves combining a polymerase chain reaction (PCR) technique with an evanescent wave technique.