Abstract: Compounds relating to attachment chemistries for binding biomolecules to a substrate surface are described. These include compounds of the following structure: The biomolecule includes a single nucleic acid, oligonucleotides, polynucleotides, DNAs, RNAs, proteins, peptides, enzymes, antibodies, CNAs (cyclohexyl nucleic acids), p-MeNAs (methyl or methoxy phosphate nucleic acids), peptide nucleic acids (PNAs), and pyranosyl RNAs (p-RNAs).

Abstract: Compounds relating to attachment chemistries for binding biomolecules to a substrate surface are described. These include compounds of the following structure: The biomolecule includes a single nucleic acid, oligonucleotides, polynucleotides, DNAs, RNAs, proteins, peptides, enzymes, antibodies, CNAs (cyclohexyl nucleic acids), p-MeNAs (methyl or methoxy phosphate nucleic acids), peptide nucleic acids (PNAs), and pyranosyl RNAs (p-RNAs).

Abstract: Methods of binding biomolecules to a substrate are provided that include contacting the biomolecule with a branched linking moiety to form a branched linking structure. The branched linking structure is then contacted with a binding moiety on the substrate to form a coupled substrate binding structure, thereby binding the biomolecule to the substrate. The biomolecule may contain a Lewis base or a nucleophile to react with a Lewis acid or electrophile in the branched linking moiety. Alternatively, the biomolecule may contain a Lewis acid or electrophile that can react with a Lewis base or nucleophile in the branched linking moiety. Additionally, the biomolecule can be bound to the substrate through a covalent or non-covalent bond.

Abstract: Methods of binding biomolecules to a substrate are provided that include contacting the biomolecule with a branched linking moiety to form a branched linking structure. The branched linking structure is then contacted with a binding moiety on the substrate to form a coupled substrate binding structure, thereby binding the biomolecule to the substrate. The biomolecule may contain a Lewis base or a nucleophile to react with a Lewis acid or electrophile in the branched linking moiety. Alternatively, the biomolecule may contain a Lewis acid or electrophile that can react with a Lewis base or nucleophile in the branched linking moiety. Additionally, the biomolecule can be bound to the substrate through a covalent or non-covalent bond.

Abstract: Biomolecules are provided having multiple binding sites for attachment to a substrate surface. The multiple attachment sites may be produced directly on the biomolecule or through use of branched phosphoramidite moieties that can be added in multiple to form dendritic structures which can in turn provide attachment sites for substrate binding moieties. Substrate binding moieties may include noncovalent binding moieties. For covalent binding moieties oligonucleotides containing hydrazides are provided. These hydrazides can be introduced via protected building blocks such as phosphoramidites or via building blocks containing precursor forms of such hydrazides.

Abstract: This invention relates to attachment chemistries for binding macromolecules to a substrate surface or to other conjugation targets. More particularly, this invention relates to attachment chemistries involving branched or linear structures having one or more hydrazide attachment moieties for binding the macromolecules to a substrate surface, or for other conjugation reactions. Novel modifying reagents are provided for the introduction of protected hydrazide attachment moieties or precursor forms of such hydrazides to the macromolecule, either as a single hydrazide or as multiple hydrazides.

Abstract: Methods are provided for producing an array of immobilized nucleic acids on an array device. The array device has a plurality of microlocations each having an electrode. At least one of the microlocations has a synthetic addressing unit coupled to the microlocation. The microlocation is the activated, usually by electronically biasing the electrode of the microlocation. The at least one microlocation is then contacted by a conjugate which has a nucleic acid and a synthetic binding unit. The conjugate is then coupled to the microlocation through an interaction between the synthetic binding unit and the synthetic addressing unit. In one embodiment, the synthetic binding unit and synthetic addressing unit may be pRNA, pDNA, or CNA.

Abstract: The present invention relates to conjugates of synthetic binding units and nucleic acids. The present invention also relates to methods for sorting and immobilizing nucleic acids on support materials using such conjugates by specific molecular addressing of the nucleic acids mediated by the synthetic binding systems. Particularly, the present invention also relates to novel methods of utilizing conjugates of synthetic binding units and nucleic acids to in active electronic array systems to produce novel array constructs from the conjugates, and the use of such constructs in various nucleic acid assay formats. In addition, the present invention relates to various novel forms of such conjugates, improved methods of making solid phase synthesized conjugates, and improved methods of conjugating pre-synthesized synthetic binding units and nucleic acids.

Abstract: This invention relates to attachment chemistries for binding macromolecules to a substrate surface or to other conjugation targets. More particularly, this invention relates to attachment chemistries involving branched or linear structures having one or more hydrazide attachment moieties for binding the macromolecules to a substrate surface, or for other conjugation reactions. Novel modifying reagents are provided for the introduction of protected hydrazide attachment moieties or precursor forms of such hydrazides to the macromolecule, either as a single hydrazide or as multiple hydrazides.

Abstract: The present invention relates to conjugates of synthetic binding units and nucleic acids. The present invention also relates to methods for sorting and immobilizing nucleic acids on support materials using such conjugates by specific molecular addressing of the nucleic acids mediated by the synthetic binding systems. Particularly, the present invention also relates to novel methods of utilizing conjugates of synthetic binding units and nucleic acids to in active electronic array systems to produce novel array constructs from the conjugates, and the use of such constructs in various nucleic acid assay formats. In addition, the present invention relates to various novel forms of such conjugates, improved methods of making solid phase synthesized conjugates, and improved methods of conjugating pre-synthesized synthetic binding units and nucleic acids.

Abstract: The invention relates to the production of modified oligonucleotides and to their use for conjugation reactions. The invention further relates to reagents and to methods for producing aldehyde-modified oligonucleotides that contain aldehydes that are protected (masked) as acetals. Once said acetals are incorporated into the oligonucleotides the oligonucleotides are converted to aldehydes and are used for conjugation. The conjugation reaction can be carried out with the free oligonucleotide or with the oligonucleotide that is still immobilized on the substrate.

Abstract: The electrolyte is supplied from a reservoir through at least one supply line to an electrolysis area including anodes and cathodes and at least one electric d.c. voltage source, and used electrolyte is at least partly recirculated from the electrolysis area back to the reservoir through at least one discharge line. Between a first contact point in the electrolyte of the supply line and a second contact point in the electrolyte of the discharge line there is a bridge line containing electrolyte, where the ohmic resistance R1 of the electrolyte in the bridge line between the first and the second contact point is not more than 10% of the ohmic resistance R2 which exists between the first and the second contact point in the electrolyte flowing through the reservoir. The amount of electrolyte flowing through the bridge line per unit time is not more than 5% of the amount of electrolyte flowing in the supply line in the vicinity of the first contact point.

Abstract: This invention relates to devices and methods for carrying out multi-step and multiplex immunoaffinity binding reactions in microscopic formats. In particular, these devices and methods allow the user to rapidly carry out multiple immunoassays in the same sample volume, and to rapidly resolve the results of those immunoassays in an electronically assisted format. The assays may be further multiplexed in that several samples may be analyzed and visualized on the same microelectronic array.