Abstract:
The invention relates to a method for functionalising a surface of a solid substrate with at least one acrylic acid polymer layer, said method comprising the steps of: i) placing said surface in contact with a solution consisting of at least one acrylic acid homopolymer, a solvent and, optionally, metal salts; ii) removing the solvent from the solution in contact with said surface; and iii) binding the polymer to said surface by thermal treatment.
Abstract:
The invention relates to a method for chemically modifying a polymer matrix through the thickness thereof, said polymer matrix being selected from among fluoropolymer matrices and aliphatic polymer matrices. The method includes at least one step consisting in irradiating the matrix with UV light having a wavelength of less than 300 nm in order to generate zones in the thickness of the matrix that have: short polymer chains formed by scission of the existing chains during the passage of the UV rays, and free radicals known as "activated zones". The invention also relates to the polymer matrix that can be chemically modified using one such method.
Abstract:
The invention relates to a method for preparing a metallised substrate, comprising the following steps consisting in: grafting a polymer-type compound to the substrate, said compound optionally having a group capable of chelating at least one metal ion; bringing the aforementioned compound, which is capable of chelating at least one metal ion, into contact with at least one metal ion, exposing said polymer-type compound to conditions that allow the reduction of the chelated metal ion(s) and repeating the chelation/reduction steps until a metallised substrate is obtained. The invention also relates to the resulting substrates and to the uses thereof.
Abstract:
The invention relates to a cyclic peptide comprising the following sequence: -S1-X1-S2-X2- wherein S1 is a first target peptide sequence of a protease enzyme E1, S2 is a second target peptide sequence of a protease enzyme E2, S1 and S2 can be the same or different, the first peptide sequence S1 and the second peptide sequence S2 comprising between 4 and 14 amino acids, E1 and E2 corresponding to the same protease enzyme or to two separate protease enzymes, X1 is a probe carrying a fluorescent donor group, and X2 is a probe carrying a fluorescent or non-fluorescent acceptor group. Said peptides can be used in determining the activity of protease enzymes.
Abstract:
The invention relates to a cyclopeptide of the following formula: wherein: - S1 is a target peptide sequence of an MMP enzyme, that is a peptide sequence that can be identified and cleaved by an MMP enzyme; - M1 and M2 are independently a single bond, a hydrocarbonated group or an amino acid residue, optionally carrier of an aromatic side group; - X and Y are independently a single bond, and a linear or branched hydrocarbonated group that can have, in its chain, at least one heteroatom or an amino acid residue. Said cyclopeptides can be used as MMP protease enzyme inhibitors.
Abstract:
The present invention relates to a method for assembling at least one area of a first surface with at least one area of a second surface or with a molecule of interest, including a step consisting of placing said area of said first surface in contact with said area of said second surface or with said molecule of interest, wherein said area of said first surface exhibits at least one radical and/or ionic entity. The present invention also relates to a solid substrate the surface of which has at least one area with at least one radical and/or ionic entity, with at least one adhesion primary, or with at least one precursor of an adhesion primary, and to the various uses thereof.
Abstract:
The present invention relates to a method for preparing an organic film at the surface of a solid substrate, comprising a step of contacting said surface with a liquid solution containing (i) at least one solvent, at least one adhesion primer in non-electrochemical conditions and for generating radicalar entities from the adhesion primer. The liquid solution may further include (iii) at least one monomer different from the adhesion primer and polymerisable in a radicalar manner. The present invention also relates to an electrically non-conductive solid substrate on which an organic film is grafted according to said method, and to a kit for preparing an essentially polymeric organic film at the surface of the solid substrate.
Abstract:
Cellule de mesure (1) par résonance magnétique nucléaire en milieu liquide, comprenant: un réservoir (121) pour ledit milieu liquide; un circuit fluidique (122) relié audit réservoir et comprenant une chambre de mesure (124) ; un injecteur de gaz (130) débouchant dans ledit circuit fluidique, à distance de ladite chambre de mesure ; et une bobine (141) entourant ladite chambre de mesure ; caractérisée en ce qu'elle comprend également au moins un élément capacitif (142) formant, avec ladite bobine, un résonateur électromagnétique (140) ; et en ce qu'elle présente une forme permettant son introduction dans une sonde (2) de résonance magnétique nucléaire en remplacement d'un ensemble formé par un tube pour résonance magnétique nucléaire et un rotor portant ledit tube, la bobine (141) entourant la chambre de mesure étant alors positionnée de manière à se coupler par induction avec au moins une bobine à radiofréquence (20) de ladite sonde. Système de mesure par résonance magnétique nucléaire comprenant une telle cellule de mesure. Procédé de mesure par résonance magnétique utilisant une telle cellule.