摘要:
The invention concerns liposome vectors, in powder form, of active principles, and more particularly active principles sensitive to digestive and/or plasmatic degradation, such as proteins, and their application as medicine. Said liposome vectors of active principles consist of a powder composition essentially constituted of unilamellar liposomes comprising an external lipid phase consisting of class 4 lipids (phospholipids), optionally associated with class 2 substances, class 3 substances and/or class 5 substances and an internal aqueous nucleus consisting of a mixture M of at least two different non-polymerisable gelling agents (G1 and G2) whereof the gel-sol phase transition is not less than 37° C., G1 being selected among gelatines and carrageenans and G2 being selected among carrageenans with properties different from the carrageenans selected for G1, and celluloses, which liposomes have a diameter ranging between 20 nm and 1 mm, preferably between 20 nm and 500 nm; said composition having the form of particulate units with an average particle diameter between 10 mm and 1000 mm, formed by one or several of said liposomes, enclosed in a sheath selected in the group consisting of a dehydrated thermoreversible aqueous gel identical to said internal nucleus aqueous gel, dextrins or a mixture thereof, such that they contain, on an average, 10 to 10 liposomes per gram of powder; and at least an active principle contained, as the case may be, either in the gelled internal nucleus or in the external lipid phase.
摘要:
The invention relates to a connection assembly (1) for at least one item of electronic equipment (2) to the wiring (3) of an aircraft, in which the said at least one item of electronic equipment (2) is disposed in a support means (4) and comprises connection means able to be connected to the wiring (3) of the aircraft through at least one connection interface (6), characterized in that the said at least one connection interface (6) is connected to the wiring (3) through a wiring box (30) interposed between the said interface (6) and the wiring (3), the said wiring box (30) being disposed in the support means (4) to provide the connection between the connection interface (6) and the wiring (3) through the said support means (4), the support means (4) comprising a front face (16) and a rear face (18) on which the said at least one connection interface (6) is disposed, the connection assembly (1) comprising a cable passage (31) in which the wiring (3) is disposed and which extends to the vicinity of the front face (16) of the support means.
摘要:
Microspheres comprising a gelified polar core which is optionally surrounded by concentric and alternating superimposed n lipidic bilayers or n aqueous liquid layers and n gelified polar layers, n being an integer. The microspheres of the invention are obtainable by delipidation of liposomes designated as liposomes having a gelified polar core, of the type comprising at least one outer lipidic bilayer and at least one inner polar aqueous phase containing a gelified substance.
摘要:
The invention relates to novel surfactant compounds and the use thereof for preparing metastable supramolecular systems or nanoparticles. Said nanoparticles may be used as vectors for active ingredients, in particular therapeutic active ingredients.
摘要:
Microspheres comprising a gelified polar core which is optionally surrounded by concentric and alternating superimposed n lipidic bilayers or n aqueous liquid layers and n gelified polar layers, n being an integer. The microspheres of the invention are obtainable by delipidation of liposomes designated as liposomes having a gelified polar core, of the type comprising at least one outer lipidic bilayer and at least one inner polar aqueous phase containing a gelified substance.
摘要:
The invention relates to a modular assembly for fastening electronic modules carried on board an aircraft, characterized in that it comprises: a frame (10) having a more or less planar vertical front surface, comprising several mechanical fastening interfaces each intended for mechanically fastening an electronic module, at least one electronic module (80) comprising a mechanical fastening interface and which is attached to the front surface of the frame in suspended position via cooperation of the mechanical fastening interface of the said at least one electronic module with one of the mechanical fastening interfaces of the frame.
摘要:
Compounds derived from α-C-phenyl-N-tert-butylnitrone, a process for the preparation thereof and use thereof for the preparation of medicaments for use in preventing or treating oxidative stress-related diseases.
摘要:
Compounds derived from α-C-phenyl-N-tert-butylnitrone, a process for the preparation thereof and use thereof for the preparation of medicaments for use in preventing or treating oxidative stress-related diseases.
摘要:
The invention concerns powder compositions of stabilised unilamellar liposomes, comprising at least an external lipid phase and a internal aqueous polar nucleus gelled at room temperature, the method for preparing them and their applications as nutritional additives and in pharmaceutical compositions to be orally administered (with action against lipemia). Said compositions essentially consist of unilamellar liposomes comprising an external lipid phase consisting of class 4 lipids (phospholipids) and an internal aqueous nucleus consisting essentially of a mixture M of at least two different non-polymerisable gelling agents (G1 and G2) whereof the gel-sol phase transition point is not less than 37° C., G1 being a gelling agent selected among gelatines and carrageenans and G2 being selected among carrageenans with properties different from the carrageenans selected for G1, and celluloses, which lipisomes have a diameter ranging between 20 nm and 1 mm, preferably ranging between 50 nm and 500 nm and having the form of particulate units with an average particle diameter between 10 mm and 1000 mm, formed by one or several of said liposomes, enclosed in a sheath selected in the group consisting of a dehydrated thermoreversible aqueous gel identical to said internal nucleus aqueous gel, dextrins or a mixture thereof, such that they contain, on an average, 1016 to 1018 liposomes per gram of powder.
摘要:
An assembly for connection of an electronic equipment item to wiring of an aircraft, in which the item of electronic equipment is disposed in a support means and includes connection means configured to be connected to the wiring, a connection interface disposed between the wiring and the connection means to provide connection of the item of electronic equipment to the wiring, the connection assembly configured to change over from a connected state in which the connection means are connected to the connection interface to a disconnected state in which the connection means are free. The connection interface is fastened to the structure of the aircraft; whether the connection assembly is in the connected or disconnected state. The support means is movable and includes an at least partially open face turned toward the connection interface and onto which the connection means emerge. The connection of the connection assembly to the connection interface is made by moving the support means between a first position where the connection assembly is in a disconnected state and a second position where it is in a connected state.