Abstract: Systems, methods, and apparatuses are provided for self-contained nucleic acid preparation, amplification, and analysis.

Abstract: The present invention concerns reagents for the reversible protection of biological molecules. It relates in particular to compounds derived from azaisatoic anhydride and their uses for the protection of biological molecules, particularly enzymes, in order to block their activity. The invention also relates to the biological molecules protected in this manner and to the methods for making use of these reagents.

Abstract: The present invention concerns reagents for the reversible protection of biological molecules. It relates in particular to compounds derived from azaisatoic anhydride and their uses for the protection of biological molecules, particularly enzymes, in order to block their activity. The invention also relates to the biological molecules protected in this manner and to the methods for making use of these reagents.

Abstract: Systems, methods, and apparatuses are provided for self-contained nucleic acid preparation, amplification, and analysis.

Abstract: A method for extracting nucleic acids using suitable solid supports, for example silica-based. In particular, the method includes a step of capturing nucleic acids by placing the sample in contact with a suitable solid support, characterized in that, prior to the capture step, said method includes a step of treating the sample with at least one reagent for masking the amine or carboxylic acid functional groups of the proteins and/or polysaccharides of the sample.

Abstract: A three-layer complex including at least one magnetic compound, at least one inorganic silicate and at least one compound having an affinity for the at least one magnetic compound and/or the at least one inorganic silicate. The three-layer complex, and associated methods, may be applicable in the field of in vitro diagnostics.

Abstract: Systems, methods, and apparatuses are provided for self-contained nucleic acid preparation, amplification, and analysis.

Abstract: The present invention concerns reagents for the reversible protection of biological molecules. It relates in particular to compounds derived from azaisatoic anhydride and their uses for the protection of biological molecules, particularly enzymes, in order to block their activity. The invention also relates to the biological molecules protected in this manner and to the methods for making use of these reagents.

Abstract: A method of functionalizing RNA in a liquid sample includes reacting an anhydride function of a binding molecule with at least one RNA molecule at one or more hydroxyl groups in any of position 2? of a ribose of any nucleotide of the RNA molecule, position 2? of the ribose of the terminal nucleotide at the 3? end of the RNA molecule, or position 3? of the ribose of the terminal nucleotide at the 3? end of the RNA molecule, to obtain functionalized RNA. The binding molecule includes an aza-isatoic anhydride or derivative thereof linked to a group of interest by a linkage, and an aza-anthranilate is formed from reacting the anhydride function of the binding molecule with a hydroxyl group of the RNA molecule so as to join the RNA molecule to the group of interest. The group of interest is a marker, labelling precursor, or ligand.

Abstract: The present invention relates to a method of functionalization of at least one ribonucleic acid (RNA) molecule, contained in a liquid sample, which includes the following steps: a) providing at least: one binding molecule consisting of an aza-isatoic anhydride or a derivative thereof, one group of interest, and one linkage joining the binding molecule to the group of interest, b) reacting the anhydride function of the binding molecule with at least one hydroxyl group carried: in position 2? of the ribose of one of the RNA nucleotides, and/or in position(s) 2? and/or 3? of the ribose of the nucleotide at the terminal 3? end of the RNA, and obtaining an aza-anthranilate that joins, by means of the linkage, the RNA to the group of interest.

Abstract: A three-layer complex including at least one magnetic compound, at least one inorganic silicate and at least one compound having an affinity for the at least one magnetic compound and/or the at least one inorganic silicate. The three-layer complex, and associated methods, may be applicable in the field of in vitro diagnostics.

Abstract: A method of transcriptional amplification includes: (a) obtaining a mixture by combining (i) a biological sample comprising nucleic acids, (ii) amplification primers, (iii) amplification reagents including enzymes required for amplification, and (iv) at least one polyol capable of stabilizing the enzymes required for amplification; (b) denaturing the nucleic acids by heating the mixture at a temperature above 41° C.; and (c) transcriptionally amplifying at least one target nucleic acid at a temperature above 41° C. when present in the mixture.

Abstract: A method of amplifying a nucleic acid of interest comprises (i) treating a biological sample chemically or enzymatically to permit conversion of one type of nucleic acid base to another type of base, (ii) purifying the treated biological sample before adding amplification primers and amplification reagents to the biological sample, (iii) adding the amplification primers and amplification reagents to the biological sample, each primer being constituted of three different types of bases and being specific to a converted nucleic acid of interest or to a nucleic acid that is complementary to the converted nucleic acid of interest, and (iv) amplifying the converted nucleic acid of interest provided that the nucleic acid of interest was present in the biological sample. In the method, amplification of contaminating nucleic acids is avoided by converting the one type of nucleic acid base to another type of base prior to adding the amplification reagents to the biological sample.

Abstract: A process for synthesis of a labelling reagent, a process for the labelling of a biological molecule, a labelled biological molecule obtained by the process, a process for labelling and fragmentation of a single or double strand nucleic acid, a labelled nucleic acid capable of being obtained by the process, a kit for detection of a target nucleic acid containing a labelled nucleic acid, a solid support onto which is attached a reagent and a process for capture of nucleic acids.

Abstract: The present invention relates to a method of functionalization of at least one ribonucleic acid (RNA) molecule, contained in a liquid sample, which includes the following steps: a) providing at least: one binding molecule consisting of an aza-isatoic anhydride or a derivative thereof, one group of interest, and one linkage joining the binding molecule to the group of interest, b) reacting the anhydride function of the binding molecule with at least one hydroxyl group carried: in position 2? of the ribose of one of the RNA nucleotides, and/or in position(s) 2? and/or 3? of the ribose of the nucleotide at the terminal 3? end of the RNA, and obtaining an aza-anthranilate that joins, by means of the linkage, the RNA to the group of interest.

Abstract: A method of transcriptional amplification includes: (a) obtaining a mixture by combining (i) a biological sample comprising nucleic acids, (ii) amplification primers, (iii) amplification reagents including enzymes required for amplification, and (iv) at least one polyol capable of stabilizing the enzymes required for amplification; (b) denaturing the nucleic acids by heating the mixture at a temperature above 41° C.; and (c) transcriptionally amplifying at least one target nucleic acid at a temperature above 41° C. when present in the mixture.

Abstract: A nucleotide probe permitting the detection of nucleic acids and constituted of a labeled nucleotide strand having three fragments: a first fragment having a first closing sequence, a second fragment, all or part of which has a recognition sequence for the molecular recognition of the target nucleic acid and a third fragment having a second closing sequence, and at least two markers, one of the ends of the strand of the detection probe being free of any marker, in which, when the two closing sequences are hybridized together, the detection probe has a completely circular shape, the closing sequences thus maintaining the probe in a conformation that cannot be detected in the absence of the target nucleic acid.

Abstract: The present invention relates to a method for labeling biological molecules of interest contained in a biological sample, consisting in: a) providing a reaction vessel, b) immobilizing capture molecules, which are capable of binding a label of the biological molecules of interest, on a solid support of the vessel, c) introducing the biological sample but also at least one label of the biological molecules of interest into said vessel and optionally any ingredient required for labeling or prelabeling the molecules of interest, d) incubating the vessel content and immobilizing the label which is not reacted with the molecules of interest by binding to the capture molecules, and e) using the labeled molecules of interest for subsequent steps. A method for treating a biological sample is also disclosed. Said invention is preferably used in a manual or automated method for purifying nucleic acids.

Abstract: The present invention relates to a process of functionalising at least one ribonucleic acid (RNA) molecule which comprises the following steps: a) having at least: a binding molecule constituted by an isatoic anhydride or a derivative thereof, a group of interest, and a binding arm linking the binding molecule with the group of interest, b) reacting the anhydride function of the binding molecule with at least one hydroxyl group in: position 2? of the ribose of one of the RNA nucleotides, and/or position(s) 2? and/or 3? of the ribose of the nucleotide at the 3? terminal end of the RNA, and c) obtaining an anthranilate linking, via the binding arm, the RNA to the group of interest. The invention also relates to a functionalising reagent able to be used in such processes, a functionalised biological RNA molecule capable of being obtained by these processes and a kit for detecting a target RNA molecule comprising such a reagent.

Abstract: The present invention relates to a labeling reagent of formula: in which: R1 represents at least one detectable label, L and A are each a linker arm, n is an integer equal to 1, and u is an integer between 0 and 2. The present invention also describes a method of synthesizing said markers and also applications for the labeling of biological molecules, more particularly nucleic acids, with a labeling reagent bearing diazo and nitro functions. The invention is particularly suitable for use in the diagnostics field.