Abstract: The invention relates to a method for dissolving charged nucleic acids in an organic first liquid which is immiscible with water. The method comprises the following steps: a) providing a solution of the nucleic acids in an aqueous second liquid, b) precipitating the nucleic acids by adding a complexing agent to the second liquid, the complexing agent forming complexes with the nucleic acids that are insoluble in the second liquid, c) removing the complexes from the second liquid, d) dissolving the complexes in a third liquid which consists of an amphiphilic compound or which contains an amphiphilic compound, and e) mixing the third liquid with the first liquid.

Abstract: The invention relates to a method for detecting an analyte A in a liquid, comprising the following steps: (a) a solution containing an analytical reagent N is provided in a container B; (b) the analyte A is added to the solution, (c) an electrical field eF which acts upon the solution is applied by means of electrodes disposed outside the container B, whereby a modification occurs in the concentration of a substance which is specific with respect to the presence of the analyte A in a region M of the container B and (d) the modification of said concentration is optically detected.

Abstract: The invention relates to the use of a disposable container comprising a cylindcr (1) containing a plunger (2, 24) that is displaceably guided in said cylinder and a connection (3) that is provided on a first end (E1) of the cylinder (1) lying opposite the plunger (2, 24), said container being designed to create a difference in pressure in a microfluidic device (13) to hold (6) an agent (F, P) for processing molecules and/or to act as a reaction vessel.

Abstract: The present invention relates to a device, a kit and a method for the contamination-free preparation of analyte, in particular biopolymer comprising liquids. The device comprises wo chambers (2, 3) having a reversibly changeable volume.

Abstract: The invention relates to a method for conducting the parallel identification of different nucleic acids S. When nucleic acids S are present, primers are lengthened each of which having an intermediate segment z. The intermediate segment z is amplified by using a second primer pair and is specifically identified by hybridizing with a probe So.

Abstract: The invention relates to a device (17) for detecting an analyte in a liquid having a multitude of electrodes (15), which are insulated from one another while being arranged on a first side (12) of an electrically non-conductive plate (10) that is impermeable to the liquid. Said electrodes (15) have, at least in part, an analyte-specific coating or analyte-specific molecules. Electrical conductors that pass through the plate (10) can, from a second side (14) of the plate, be electrically contacted and individually discharged. The coating or the molecules has/have a specific affinity to the analytes or to a substance formed due to the presence of the analyte. In addition, the device has no leakages.

Abstract: The invention relates to a security thread for the forgery-proof marking of objects, comprising at least one fibre (F) with nucleic acid molecules (N) bonded with the one end thereof to a fibre suface and the fibre (F). The other end of the nucleic acid molecule (N) is free such that complementary nucleic acid molecules (N?) may bind to the nucleic acid molecule (N).

Abstract: The invention relates to a method for identifying, quantifying and/or characterizing an analyte (10) contained in a first liquid. Said method is characterized by the following steps: a) bringing the analyte (10) into contact with a first probe (20) and with a second probe (22), each probe having an affinity to the analyte (20), and incubating the analyte. The affinity of the first probe (20) is effected by a specific affinity to at least one first binding site (12) of the analyte (20), and the incubating ensues under conditions under which the first probe (20), and the second probe (22) bind to the analyte (10).

Abstract: The invention relates to a method for carrying out a reaction in an unmoved liquid in a capillary which is open at at least one end, with gas bubbles forming in the liquid, with a detergent being added to the liquid for the purpose of changing at least one property of the gas bubbles which are being formed and with the capillary being arranged, or having been arranged, at at least an angle to the horizontal which is such that the gas bubbles in the capillary ascend to a surface of the liquid.

Abstract: The invention relates to a method for detecting an analyte A in a liquid, comprising the following steps: (a) a solution containing an analytical reagent N is provided in a container B; (b) the analyte A is added to the solution, (c) an electrical field eF which acts upon the solution is applied by means of electrodes disposed outside the container B, whereby a modification occurs in the concentration of a substance which is specific with respect to the presence of the analyte A in a region M of the container B and (d) the modification of said concentration is optically detected.

Abstract: The invention relates to a method for detecting and/or quantifying the binding of first molecules (16) to second molecules (18) affine therein. The inventive method comprises the following steps: a) providing a container (10), wherein the second molecules (18) are immobilized on a wall, b) contacting the second molecules (18) to a solution containing the first molecules (16), c) incubating the container (10) in such a way that the first molecules (16) bind to the second molecules (18) and build up on the wall and d) detecting the changes in concentration of the first molecules (16) in the solution by means of radiation without removing the solution from the container (10), whereby the solution is contained in said container (10).

Abstract: The invention relates to a synthetic particle used for marking a substance. Said synthetic particle is comprised of a number of identification substances (10, 12), which exist in a solid form, and of at least one covering (16), which encloses at least one of the identification substances (10, 12). The identification substances (10, 12) are selected such that the synthetic particle (18) can be identified by simultaneously identifying the identification substances (10, 12) in one and the same identification method on the basis of non-optical properties of the identification substances (10, 12).

Abstract: The invention relates to a method for identify a predetermined mark (32) applied on a solid body (30) and constituted by planar elements (10). The inventive method comprises the following steps: (a) binding first biopolymers to a first part of the planar elements (10) so as to produce a first predetermined partial pattern, (b) contacting the mark (32) with third biopolymers that have an affinity to the first biopolymers so that the first and the third biopolymers bind to one another, and (c) identifying the first partial pattern produced by the bound first and third biopolymers by detecting the bond between the first and the third bipolymers by means of a one-stop detection method.

Abstract: The invention relates to a method to increase the sensitivity of a carbon electrode for electrochemically detecting an analyte without electrochemically conditioning the carbon electrode, wherein the method comprises treating the carbon electrode with an ionic detergent which is in solution, wherein the detergent is not incorporated in a coating of the electrode.

Abstract: The present invention relates to a novel process for the production of transgenic organisms or transgenic cells, to transgenic orgaisms or transgenic cells obtainable by the process of the present invention, to the use of vectors comprising DNA encoding a recombination promoting enzymes for curing impairments caused by environmental influences in plants or plant cells and for gene therapy in mammals or mammalian cells, and to novel vectors.

Abstract: The invention relates to a method for marking solid, liquid or gaseous substances, whereby the substance to be marked is provided with at least one synthetically produced nucleic acid sequence. Said nucleic acid sequence contains a first sequence section constructed with the 5′ terminal end, a second sequence comprised of at least two bases and connected to said nucleic acid sequence, and a third sequence section constructed with the 3′ terminal end and connected to the said nucleic acid sequence. In order to simplify the identification of the marking, the invention provides that a first primer group is used with a first primer section corresponding to the first sequence section and a second primer group is used with a third primer section corresponding to the third sequence section.