Abstract:
The invention relates to products containing one or more charged biomaterial(s) immobilised to an ion exchanger in a reversible form wherein the ion exchanger is attached to the internal surface of a plastic pipette tip, and to a method for the preparation thereof. The products are useful for stabilising, storing, transporting and pre-dispensing charged biomaterials.
Abstract:
The invention relates to a process for coating the surface of plastics comprising the steps of: i) absorbing one or more internal reagent(s) in the plastic to be coated; ii) contacting one or more external reagent(s) with the surface of said plastic; iii) forming an immobilised coating by a chemical reaction between the internal reagent(s) and the external reagent(s) both diffusing to the boundary layer of said plastic, preferably in the presence of an additive.
Abstract:
The invention provides colloid systems, preferably capsules, dispersions and emulsions, assembled by micelles containing new-type anionic surfactant and small molecular cationic complexing agent. Furthermore, the invention provides a method for phase separation, preferably for coacervation, of polymolecular colloid systems composed of aqueous anionic surfactants and the associates of them be the use of non colloidal sized complexing agents (polymolecular complex coacervation), and the use of this method for separating biologically active substances and for producing capsules, dispersions and emulsions containing such substances. Additionally, the invention provides reagent kits for performing the method of the invention. The colloid systems and methods of the invention can be very widely used for isolating, stabilizing or removing different substances, such as proteins, lipids, stains or dyes, radioactive substances, for isolating nucleic acids and for encapsulating or emulgeating different substances, such as proteins, active ingredients, stains or dyes, etc.
Abstract:
The invention relates to a process for coating the surface of plastics comprising the steps of: i) absorbing one or more internal reagent(s) in the plastic to be coated; ii) contacting one or more external reagent(s) with the surface of said plastic; iii) forming an immobilised coating by a chemical reaction between the internal reagent(s) and the external reagent(s) both diffusing to the boundary layer of said plastic, preferably in the presence of an additive.
Abstract:
The invention relates to products containing one or more charged biomaterial(s) immobilised to an ion exchanger in a reversible form wherein the ion exchanger is attached to the internal surface of a plastic pipette tip, and to a method for the preparation thereof. The products are useful for stabilising, storing, transporting and pre-dispensing charged biomaterials.
Abstract:
The invention relates to products containing one or more charged biomaterial(s) immobilised to an ion exchanger in a reversible form wherein the ion exchanger is attached to the internal surface of a plastic pipette tip, and to a method for the preparation thereof. The products are useful for stabilising, storing, transporting and pre-dispensing charged biomaterials.