摘要:
The present invention provides compositions, apparatuses and methods for detecting one or more nucleic acid targets present in a sample. Methods of the invention include utilizing two or more ligation probes that reversibly bind a target nucleic acid in close proximity to each other and possess complementary reactive ligation moieties. When such probes have bound to the target in the proper orientation, they are able to undergo a spontaneous chemical ligation reaction that yields a ligation product that is directly detected or that is amplified to produce amplicons that are then detected. The present invention also provides methods to stabilize sample RNA so that degradation does not significantly affect the results of the analysis.
摘要:
The present invention provides compositions, apparatuses and methods for detecting one or more nucleic acid targets present in a sample. Methods of the invention include utilizing two or more ligation probes that reversibly bind a target nucleic acid in close proximity to each other and possess complementary reactive ligation moieties. When such probes have bound to the target in the proper orientation, they are able to undergo a spontaneous chemical ligation reaction that yields a ligation product that is directly detected or that is amplified to produce amplicons that are then detected. The present invention also provides methods to stabilize sample RNA so that degradation does not significantly affect the results of the analysis.
摘要:
The present invention provides compositions, apparatuses and methods for detecting one or more nucleic acid targets present in a sample. Methods of the invention include utilizing two or more ligation probes that reversibly bind a target nucleic acid in close proximity to each other and possess complementary reactive ligation moieties. When such probes have bound to the target in the proper orientation, they are able to undergo a spontaneous chemical ligation reaction that yields a ligation product that is directly detected or that is amplified to produce amplicons that are then detected. The present invention also provides methods to stabilize sample RNA so that degradation does not significantly affect the results of the analysis.
摘要:
The invention relates to compositions and methods useful in the acceleration of binding of target analytes to capture ligands on surfaces. Detection proceeds through the use of an electron transfer moiety (ETM) that is associated with the target analyte, either directly or indirectly, to allow electronic detection of the ETM.
摘要:
The present invention provides compositions, apparatuses and methods for detecting one or more nucleic acid targets present in a sample. Methods of the invention include utilizing two or more oligonucleotide probes that reversibly bind a target nucleic acid in close proximity to each other and possess complementary reactive ligation moieties. When such probes have bound to the target in the proper orientation, they are able to undergo a spontaneous chemical ligation reaction that yields a ligated oligonucleotide product. In one aspect, the ligation product is of variable length that correlates with a particular target. Following chemical ligation, the probes may be amplified and detected by capillary electrophoresis or microarray analysis.
摘要:
Circuit boards (1100, 1500, 1600, 1700) and methods for fabricating circuit boards that include heaters for maintaining temperature sensitive components at an operating temperature are provided. Resistive traces (602, 702,704) are included in the circuit boards proximate temperature sensitive apparatus (1004, 1304, 1602, 1712). Thermally conductive patches (802, 902, 904) are interposed between the resistive traces and the temperature sensitive components. The thermally conductive patches establish zones of relatively uniform temperatures. According to a preferred embodiment of the invention the temperature sensitive apparatus comprises a fluid conduit (1004).
摘要:
The present invention provides compositions, apparatuses and methods for detecting one or more nucleic acid targets present in a sample. Methods of the invention include utilizing two or more oligonucleotide probes that reversibly bind a target nucleic acid in close proximity to each other and possess complementary reactive ligation moieties. When such probes have bound to the target in the proper orientation, they are able to undergo a spontaneous chemical ligation reaction that yields a ligated oligonucleotide product. In accordance with the invention, the presence of the target(s) of interest can be determined by measuring the presence or amount of ligated oligonucleotide product.
摘要:
The present invention provides compositions, apparatuses and methods for detecting one or more nucleic acid targets present in a sample. Methods of the invention include utilizing two or more oligonucleotide probes that reversibly bind a target nucleic acid in close proximity to each other and possess complementary reactive ligation moieties. When such probes have bound to the target in the proper orientation, they are able to undergo a spontaneous chemical ligation reaction that yields a ligated oligonucleotide product. In accordance with the invention, the presence of the target(s) of interest can be determined by measuring the presence or amount of ligated oligonucleotide product.
摘要:
The invention is directed to devices that allow for simultaneous multiple biochip analysis. In particular, the devices are configured to hold multiple cartridges comprising biochips comprising arrays such as nucleic acid arrays, and allow for high throughput analysis of samples.
摘要:
The invention relates to compositions and methods useful in the acceleration of binding of target analytes to capture ligands on surfaces. Detection proceeds through the use of an electron transfer moiety (ETM) that is associated with the target analyte, either directly or indirectly, to allow electronic detection of the ETM.