摘要:
The invention relates to textile fibres at least partially covered with a nanometric-sized semiconducting material having photocatalytic properties for degrading chemical compounds, in particular chemical or biological agents, wherein said semiconducting material is in the form of nanostructures or nanocomposites with a one-dimensional morphology. The textile fibres can be used for applications in the military, medical, and civilian domains, etc. The curves 60 and 62 respectively show the photocatalytic degradation of organic compounds at the surface of textile fibres covered with nanostructures or nanocomposites having a one-dimensional morphology according to the invention, and nanoparticles having a granular morphology according to the prior art. The nanostructures or nanocomposites of the invention 60 are more efficient.
摘要:
The present invention relates to novel compounds, to the pharmaceutical compositions comprising same and also to the therapeutic uses thereof in the human and animal health fields. The present invention also relates to a method for preparing these compounds.
摘要:
The invention relates to a method of producing a composite comprising nanofibres or nanotubes on a porous ß-SiC substrate, said method comprising the following steps: (a) a catalyst for growing nanotubes or nanofibres is incorporated into said porous ß-SiC substrate or into an SiC precursor; (b) carbon nanotubes or nanofibres are grown from a mixture comprising hydrogen and at least one hydrocarbon; and (c) optionally, said carbon nanotubes or nanofibres are converted to SiC nanofibres. This composite may be used as a catalyst or catalyst support.
摘要:
The invention relates to at least one marking reagent of the formula (1) in which: R1 is at least one detectable marker; L and A are each a bonding arm; n is an integer equal to 1; and u is an integer between 0 and 2. The invention also relates to a method for the synthesis of said markers and to applications for marking biological cells, in particular nucleic acids, with a marking reagent bearing diazo and nitro functions. The invention can preferably be used in the field of diagnosis.
摘要:
The invention relates to configurational isomers 4-hydroxyisoleucine, and to lactones, pharmaceutically acceptable salts, and prodrugs thereof, to processes for their preparation, and to pharmaceutical compositions comprising the same. The isomers of the invention exhibit insulinotropic activity and thus may be useful for the prevention and treatment of disorders of carbohydrate or lipid metabolism, including diabetes mellitus (type 1 and type 2 diabetes), pre-diabetes, and Metabolic Syndrome.
摘要:
The invention relates to unsaturated dipyrromethene-boron borocarbons of formula (I) and the use thereof for fluorescence or electroluminescent analysis. The fluorescent properties are provided by the central ring of 6 atoms comprising the -N-B-N- sequence, R 1 to R 7 permitting the modification of the compound properties (fluorescence emission wavelength, quantitative fluorescent yield), at least one of the substituents S 1 and S 2 has a chromophore end group which permits an excitation of the molecule at wavelengths close to those of the substituent chromophore A preferably selected from the chromophore substituents with a wavelength close to the ultraviolet which significantly increases the Stokes displacement.
摘要:
The invention relates to novel chemical compounds, compositions and methods of making and using the same. In particular, the invention provides pyridazine compounds and/or related heterocyclic derivatives, compositions comprising the same, and methods of using pyridazine compounds and/or related heterocyclic derivatives and compositions comprising the same, for modulation of cellular pathways (e.g., signal transduction pathways), for treatment or prevention of inflammatory diseases (e.g., Alzheimer's disease), for research, drug screening, and therapeutic applications.
摘要:
The invention relates to a method for initiating the controlled rupture of the membrane a biocompatible liposome, often called a furtive liposome, thereby releasing the liposome content to the environment thereof. A releasing agent is embodied in the form of a biocompatible molecule, preferably a alpha -cyclodextrine. Said invention relates, in particular to the use of the inventive method /= for therapeutic, diagnostic, experimental, cosmetic and agri-food fields.
摘要:
The invention relates to compounds and the complexes formed thereby with a lanthanide and use of the complexes for fluorescence or NMR-imagery marking. The complex comprises an Ln ion and a R C(X R ) (R ) NR R ligand, where R is a functional group, X is a single bond or a hydrocarbon chain, comprising at least one alkylene or alkenylene group with optionally at least one heteroatom or an arylene, R is an anionic group A , or a C1-C4 alkylene or alkenylene with at least one such group A and optionally comprising at least one heteroatom, R is H or a C1-C5 alkylene or alkenylene, optionally comprising at least one heteroatom and optionally having at least one anionic group A , R is a light-absorbing substituent forming cyclic chelates with Ln and R is a substituent forming cyclic chelates with Ln.
摘要:
The invention relates to macromolecules auto-assembled and photopolymerised around carbon nanotubes. Said macromolecules are essentially formed from rings of lipid compounds, polymerised about the nanotubes, said polymerised compounds being obtained from lipid molecules with one or two chains A, bonded to a group Z where A is a chain, CH3-(CH2)m-CC-CC-(CH2)n-, where n and m, independently = whole numbers from 1 to 16 and Z is a polar head group embodied by a -COOH, -CO-NH-Y, -NH2 or N (R)3, where R is an alkyl with C1 to C4 and Y is a -(CH2)4-C(R1)-N(CH2-COOH)2 group with R= H, or a COOH group, where A is a single lipid chain or a group of structure (I) or (II), where R2 = a COOH, or -CO-NH-Y1 group with Y1 = a -(CH2)4-C(R3)-N(CH2COOH)2 group with R3 = H or a COOH group, where Z and R2 can also be neutral polar head groups of the sugar or polysaccharide type. The above is of application particularly to the protection and purification of nanotubes, as a hydrophobic molecule or membrane protein vector or as a molecular motor. <>