Disclosed herein are amphoterically-modified ethoxylated oligoamines, their manufacture, and methods of using them.

The invention relates to new cationic polymers conjugated with D-fructose, as a result of which they can selectively interact with specific structure elements on cell surfaces. The problem was that of creating novel, biocompatible, easy-to-produce, D-fructose-conjugated cationic polymers that have a higher selectivity with respect to certain cell types. To solve this problem, the invention proposes cationic polymers with covalently bonded D-fructose of general formula (I) with the following components: a) cationic polymer: macromolecular compounds of n repeat units with one or more positive charges; b) linker: a unit that links the cationic polymer with D-fructose or derivatives of D-fructose by means of any alkyl or aryl group, any alkenyl or alkinyl group, an ether, thioether or amine, an ester, amide or other carboxylic acid derivative, a heterocycle (e.g. triazole or m maleimide), a disulphide, an imine or an imide; c) D-fructose: one or more D-fructoses or D-fructose derivatives in an open-chain, furanoid or pyranoid structure, not glycosidically linked via one of the five possible carbon atoms (1, 3, 4, 5, 6).

Free-standing non-fouling polymers and polymeric compositions, monomers and macromonomers for making the polymers and polymeric compositions, objects made from the polymers and polymeric compositions, and methods for making and using the polymers and polymeric compositions.

A method of preparing a disinfecting composition comprising charged polyethylenimine (PEI), the method comprising adding a base to an aqueous solution comprising a linear PEI hydrochloride solution to provide a linear PEI salt solution with a pH between 9-11, adding a first organic acid to reduce the pH to less than 7, removing about 20% to 100% of the salt from the solution, and optionally adding water and/or a second organic acid to obtain the disinfecting composition with a pH of 2-7. The method can further comprise adding at least one metal salt to the disinfecting composition. The resulting disinfecting solution can be used to provide antimicrobial products with enhanced antimicrobial performance, reduced toxicity, and/or able to leave a persistent “kill-later” film.

Free-standing non-fouling polymers and polymeric compositions, monomers and macromonomers for making the polymers and polymeric compositions, objects made from the polymers and polymeric compositions, and methods for making and using the polymers and polymeric compositions

Embodiments of the present disclosure, in one aspect, relate to polymer compositions, methods of making polymer compositions, structures having the polymer composition covalently bonded to the surface of the structure, methods of attaching the polymer to the surface of the structure, methods of decreasing the amount of microorganisms formed on a structure, materials, methods of attaching materials, and the like.

A method for conferring bacteriostatic or bactericidal properties on a surface of an object, comprising: (a) putting the surface into contact with an aqueous solution comprising an ionene-type polymer functionalised by at least one radically polymerisable function, an organic compound with two radically polymerisable functions, an organic compound with three radically polymerisable functions and a photoinitiator, (b) subjecting the surface coated with the aqueous solution to irradiation by means of which a radical polymerisation is initiated and a grafted three-dimensional polymer network comprising ionene-type polymers is obtained. The aqueous solution and the object thus obtained as well as uses thereof in particular for preparing protective garments, for packaging and/or storing fresh food products but also for purifying or decontaminating a solution or a surface.

Disclosed are latexes, suspensions, and colloids having a cationic antimicrobial compound complexed with an anionic surfactant. The surfactant may have greater affinity for the antimicrobial compound than other anionic surfactants and other anions in the latex, suspension, or colloid that contribute to disperse phase stability to prevent disrupting the dispersions. Dispersions containing the antimicrobial compound may therefore have a shelf life comparable to dispersions that are otherwise identical but lack the cationic antimicrobial compound and its complexed anionic surfactant. Coatings made with the complexes can exhibit essentially undiminished antimicrobial activity.

An antimicrobial and/or antiviral polymer is provided. The polymer is a modified polymer of a precursor polymer that comprises nitrogen atoms. The precursor polymer is modified into the antimicrobial and/or antiviral polymer of the present invention by substituting at least part of the nitrogen atoms with a (C.sub.1-C.sub.20) alkyl group and quaternizing at least part of the substituted nitrogen atoms. Such antimicrobial and/or antiviral polymers bind strongly and non-covalently to surfaces, rendering the surface antimicrobial and/or antiviral.

A resin is provided for selectively binding to perchloride and related anions (e.g., TcO.sub.4.sup.−, ReO.sub.4.sup.− and I.sup.−) in aqueous solution. The resin may take the form of microparticles or beads. The beads are prepared by cross-linking macromolecules such as hyperbranched PEI, and quaternizing the amines with hydrocarbon substituents.