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Abstract

A method for inactivating pathogens is described, comprising the steps of: partially deacylating a poly(2-alkyl-2-oxazoline) to yield a copolymer, an alkyl in the poly(2-alkyl-2-oxazoline) comprising a hydrocarbon chain, the copolymer comprising: first monomers, the first monomers comprising a —NH₂⁺CH₂CH₂— group; and second monomers, the second monomers comprising an acyl group, —C(═O)—R′, attached to a nitrogen in a polymer backbone group comprising —NCH₂CH₂—, wherein R′ comprises the hydrocarbon chain, the first monomers and the second monomers arranged in any order in the copolymer; preparing a formulation, the formulation comprising the copolymer and a total cationic charge in a range of 0.2 to 10 C/cm³, the total cationic charge at least 95% offset by counteranions in the formulation; contacting the pathogens with the formulation; and inactivating at least ninety percent of the pathogens within ninety minutes of the step of contacting.

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First Claim