Patent application number | Description | Published |
20090176318 | BINARY DNA PROBE FOR FLUORESCENT ANALYSIS OF NUCLEIC ACIDS - The invention is directed to binary oligonucleotide probes for nucleic analysis, which probes can be made of DNA or RNA that recognize nucleic acid analytes (both DNA and RNA) with unprecedented high selectivity under mild conditions and are highly sensitive to single nucleotide mismatches (SNP single nucleotide polymorphisms) without PCR amplification. In one group, the binary probes indicate that they have hybridized to a particular nucleic analyte by binding to a molecular beacon that gives off a fluorescent signal. A second group of binary probes bind to a dye such as malachite green, where upon hybridization to analyte the fluorescence of the dye increases dramatically and is easily detected and measured. The new binary probes require only about five minutes at room temperature to generate a detectable signal. | 07-09-2009 |
20120040867 | Microarrays of Binary Nucleic Acid Probes for Detecting Nucleic Acid Analytes - Some embodiments of the invention are directed to a microarray of binary nucleic acid probes for the detection of one or a plurality of nucleic acid analytes in a complex sample in a single high throughput assay with extraordinary specificity under physiologic conditions. Any binary nucleic acid probes that generate a detectable signal when bound to analyte are suitable for use in the microarrays, including binary deoxyribozyme or ribozyme probes; nonenzymatic binary probes for fluorescent detection, nonenzymatic binary dye-binding probes, and binary split enzyme peroxidase probes for visual detection of nucleic acids. The invention is also directed to new non nonenzymatic binary probes that bind to reporter oligonucleotides. | 02-16-2012 |
20120135539 | Split DNA Enzyme for Visual Single Nucleotide Polymorphism Typing - A probe that changes solution color in the presence of only one of the two DNA sequences, which differ by a single nucleotide, is reported. The probe consists of two oligodeoxyribonucleotides, which form a hydrogen peroxidase-like DNA enzyme when hybridized to the abutting fragments of the complementary analyte. The active peroxidase catalyses oxidation of colorless substrates to the colored products. The probe allows visual detection of a mutation in Alzheimer's disease-related DNA. | 05-31-2012 |
20140057252 | Binary DNA Probe for Fluorescent Analysis of Nucleic Acids - The invention is directed to binary oligonucleotide probes for nucleic analysis, which probes can be made of DNA or RNA that recognize nucleic acid analytes (both DNA and RNA) with unprecedented high selectivity under mild conditions and are highly sensitive to single nucleotide mismatches (SNP single nucleotide polymorphisms) without PCR amplification. In one group, the binary probes indicate that they have hybridized to a particular nucleic analyte by binding to a molecular beacon that gives off a fluorescent signal. A second group of binary probes bind to a dye such as malachite green, where upon hybridization to analyte the fluorescence of the dye increases dramatically and is easily detected and measured. The new binary probes require only about five minutes at room temperature to generate a detectable signal. | 02-27-2014 |
20140072967 | METHOD OF DETECTING SINGLE NUCLEOTIDE POLYMORPHISMS - Use of low-temperature nucleic acid amplification and binary probes to detect sequences and single nucleotide polymorphisms. | 03-13-2014 |