Abstract: It is essential to have efficient, simple, quick and transportable tools for reliably identifying bacteria that are multiresistant to antibiotics, more specifically extended spectrum ?-lactamase (ESBL)-producing Enterobacteriaceae, which are the most widespread among Enterobacteriaceae. The present invention meets this requirement through its ease of use and its speed. The invention is based on detecting the enzyme activity of ?-lactam hydrolysis using an antibody capable of discriminating between the intact form of the ?-lactam ring of a ?-lactam and its hydrolysis product. This antibody can be used in kits and methods enabling for rapidly detecting (in less than one hour), without using expensive equipment (a small strip visible to the naked eye), the presence of bacteria producing penicillin-type, plasmid-mediated or hyper-produced AmpC enzymes, of ESBL or carbapenemase from colonies or in a sample.

Abstract: A device for taking and optionally processing a sample, includes (i) a housing containing a porous matrix that can receive the sample, (ii) a stopper that can be connected to the housing in a tight manner and including a piston that ensures the tight closing of the housing, compressing the porous matrix or the sample, and (iii) a storage receptacle that can be connected to the housing, can receive the sample that has passed through the porous matrix, and includes at least one conduit connecting the inside of the receptacle to the outside, once the porous matrix or the sample is compressed. The device also includes a seal between the stopper and the storage receptacle. The stopper closes the storage receptacle in a tight manner when the stopper and the storage receptacle are connected to the housing.

Abstract: A device for taking and optionally processing a sample, includes (i) a housing containing a porous matrix that can receive the sample, (ii) a stopper that can be connected to the housing in a tight manner and including a piston that ensures the tight closing of the housing, compressing the porous matrix or the sample, and (iii) a storage receptacle that can be connected to the housing, can receive the sample that has passed through the porous matrix, and includes at least one conduit connecting the inside of the receptacle to the outside, once the porous matrix or the sample is compressed. The device also includes a seal between the stopper and the storage receptacle. The stopper closes the storage receptacle in a tight manner when the stopper and the storage receptacle are connected to the housing.

Abstract: A method for the in vitro immunization of human B lymphocytes, comprising culturing a total mononuclear cell population of human peripheral blood in the presence of an antigenic composition comprising at least one antigen covalently bonded to both: (i) a Tat protein or a Tat fragment capable of oligomerization and (ii) a ligand of a surface molecule specific to the antigen presenting cells; a method for producing antigen-specific human antibodies derived from said in vitro immunization method.

Abstract: A method for the in vitro immunisation of human B lymphocytes, comprising culturing a total mononuclear cell population of human peripheral blood in the presence of an antigenic composition comprising at least one antigen covalently bonded to both: (i) a Tat protein or a Tat fragment capable of oligomerisation and (ii) a ligand of a surface molecule specific to the antigen presenting cells; a method for producing antigen-specific human antibodies derived from said in vitro immunisation method.

Abstract: The present invention relates to a three dimensional (or 3D) microfluidic system comprising a plurality of layers stacked upon each other, characterised in that at least one of said layers consists of a 1st and at least one 2nd parts, distinct from each other, with the 2nd part being porous and wettable by a solution of interest, nesting into a recess of the 1st part being non-porous and/or non-wettable by said solution of interest, wherein said system can possibly have a built-in reservoir; a method for manufacturing the same and different uses thereof.

Abstract: The present invention relates to an improved method for detecting and quantifying analytes on a solid support, with liposome-encapsulated fluorescent molecules.

Abstract: The invention relates to a three-functional pseudo-peptidic reagent, to the various uses thereof, in particular for preparing bioluminescent reagents or optionally luminescent bio-conjugates, to the use of said reagents and bio-conjugates for functionalising solid substrates, and to the use of solid substrates thus functionalised in the detection of molecules of interest.

Abstract: The invention concerns a method for heterogeneous phase detection of an analyte, the trifunctional reagent used for implementing said method, its use for detecting an analyte, as well as the device for detecting a corresponding analyte