摘要:
A computer-implemented method for viewing experimental data is provided. In certain embodiments the method comprises: a) inputting genomic array data and cytogenetic data into a computer memory; and b) producing a graphical user interface comprising: i) a chromosomal map of the genomic array data comprising a first positional indicator that indicates a position on the chromosomal map; and ii) a cytogenetic map of the cytogenetic data comprising a second positional indicator that indicates a position on the cytogenetic map.
摘要:
The present invention generally relates to competitive oligonucleotides and, in some embodiments, to competitive oligonucleotides for use in comparative genomic hybridization (CGH) and related techniques. One aspect is generally directed to a blocking composition constructed and arranged to be used in an assay of a nucleic acid. The blocking composition may comprise oligonucleotides comprising sequences selected to hybridize to the nucleic acid used in the assay. Another aspect is generally directed to performing CGH assays and similar techniques on genomic DNA, in the absence of a Cot-1 fraction, such that the genomic DNA does not substantially cross-hybridize. Yet other aspects of the invention are directed to devices or kits for making or using competitive oligonucleotides, methods of promoting such competitive oligonucleotides, or the like.
摘要:
Methods are disclosed for synthesizing a plurality of compounds on the surface of supports. The synthesis comprises a series of cycles of steps in which reagents for conducting the synthesis are deposited on the surface of the support to form the chemical compounds. At least one physical parameter of the deposition varies between cycles The method comprises conducting the synthesis in at least two sets of cycles, arbitrarily designated as a first set and a second set. Each cycle comprises at least one step of depositing reagents on a surface by means of droplet dispensing elements that traverse the surface of the support. At least one, and desirably all, of the following deposition parameters are employed as indicated: The number of times of repetition for a step of depositing reagents in at least one cycle of the second set is less than the number of times of repetition for a corresponding step in at least one cycle of the first set. The rate of deposition in at least one cycle of the second set is slower than or equal to the rate of deposition in at least one cycle of the first set. The rate of traversal of the dispensing elements over the surface of the support in at least one cycle of the second set is greater than such rate of traversal in at least one cycle of the first set.
摘要:
A method is described for removing residue from a fluid deposited on the interior surface of an inkjet printhead after the printhead has contained or dispensed the fluid at least once. The method makes use of a reverse flushing technique optionally used in combination with sonication. A cleaning station for flushing an inkjet printhead with a wash fluid, rinse fluid, and/or inert gas is provided as well.
摘要:
A method is described for removing residue from a fluid deposited on the interior surface of an inkjet printhead after the printhead has contained or dispensed the fluid at least once. The method makes use of a reverse flushing technique optionally used in combination with sonication. A cleaning station for flushing an inkjet printhead with a wash fluid, rinse fluid, and/or inert gas is provided as well.
摘要:
A method and apparatus for fabricating an array of biopolymers on a substrate using a biopolymer or biomonomer fluid, and using a fluid dispensing head. The head has at least one jet which can dispense droplets onto a substrate, the jet including a chamber with an orifice, and including an ejector which, when activated, causes a droplet to be ejected from the orifice. The method includes positioning the head with the orifice facing the substrate. Multiple droplets of the biopolymer or biomonomer fluid are dispensed from the head orifice so as to form an array of droplets on the substrate. A gas flow is directed through a venturi which has a throat opening communicating with the dispensing head chamber. A venturi control valve which particularly communicate with an outlet of the venturi, is adjusted to alter the chamber pressure. The venturi may be driven by a source of inert anhydrous compressed gas which assists in maintaining fluid in the head isolated from moisture.
摘要:
The present invention generally relates to spatial and structural genomic analysis compositions, which can be used for the mapping of chromosomes and structural analyses of chromosomal rearrangements, including the entire chromosome, as well as specific portions or regions of interest of the chromosomes. In some embodiments, multiple portions of the genome can be distinguished, for instance, using a first detection entity and a second detection entity different from the first detection entity. The detection entities may be immobilized relative to oligonucleotides, which may be selected to bind to different locations within the chromosome. For instance, the oligonucleotides may be at least substantially complementary to the chromosome, e.g., substantially complementary to a specific location of the chromosome.
摘要:
The present invention generally relates to spatial and structural genomic analysis compositions, which can be used for the mapping of chromosomes and structural analyses of chromosomal rearrangements, including the entire chromosome, as well as specific portions or regions of interest of the chromosomes. In some embodiments, multiple portions of the genome can be distinguished, for instance, using a first detection entity and a second detection entity different from the first detection entity. The detection entities may be immobilized relative to oligonucleotides, which may be selected to bind to different locations within the chromosome. For instance, the oligonucleotides may be at least substantially complementary to the chromosome, e.g., substantially complementary to a specific location of the chromosome.
摘要:
A computer-implemented method for viewing experimental data is provided. In certain embodiments the method comprises: a) inputting genomic array data and cytogenetic data into a computer memory; and b) producing a graphical user interface comprising: i) a chromosomal map of the genomic array data comprising a first positional indicator that indicates a position on the chromosomal map; and ii) a cytogenetic map of the cytogenetic data comprising a second positional indicator that indicates a position on the cytogenetic map.
摘要:
Methods are provided for depositing a quantity of fluid onto the surface of an array. In the subject methods, a thermal inkjet head loaded with the fluid is positioned in opposing relationship to, e.g. over, the array surface. Actuation of the thermal inkjet results in the expulsion of a quantity of fluid onto the array surface. The subject methods find particular use in array-based binding assays in which an array of binding agents is employed for the detection of an analyte(s), particularly array-based hybridization assays.