Abstract: The invention concerns a macromolecule of formula (I): P-O-M in which M represents a molecule of interest, O represents an oligonucleotide chain; P represents a monomer of an electronic conductor polymer, and x and y are integers equal to 1 or more. The invention also concerns the copolymers obtained from the P-O-M macromolecules.

Abstract: A device for the rapid qualitative and quantitative determination of the presence of a reactive ligand in a fluid.This device comprises a first reaction zone in which there is an at least temporarily impermeable membrane designed to receive a sample of test fluid and to be associated with at least one labeled reagent; a second reaction zone which is bounded on the one hand by the said membrane and on the other by a second at least temporarily impermeable membrane comprising a solid phase containing a reference reagent; and a third reaction zone which contains means for developing the reaction.A method for the rapid qualitative and quantitative determination of the presence of a reactive ligand in a fluid.Applications to the detection of the presence, in a biological fluid, of antibodies or antigens in particular.

Abstract: A heat-insulating enclosure contains temperature-regulating means and open-topped vessels each containing a sample of predetermined volume and transferred from a storage position to an analysis position in which a predetermined volume of reagent solution is contacted with the sample. Means are provided for detecting the respective temperatures of the sample and the reagent, for detecting the heat flux released and limiting thermal variations in the vicinity of each sample.

Abstract: The method of fabrication of porous macromolecular materials which are primarily intended for use as ion-exchange membranes and selective semi-permeable membranes consists in subjecting a polymer to irradiation with heavy nuclear particles, in chemically fixing a monomer having at least one ethylene double bond in the zones which are modified by irradiation and localized around the locus of passage of each particle and in forming the pore structure by means of a chemical attacking agent which is specific to the starting polymer.