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Abstract

A method for inactivating pathogens is described, comprising the steps of: (1) preparing a copolymer comprising repeating units, the repeating units comprising at least two of: first monomers comprising a —NH₂⁺CH₂CH₂— group; second monomers comprising a —NHCH₂CH₂— group; and third monomers comprising an acyl group, —C(═O)—R′, attached to a nitrogen in a polymer backbone group of the copolymer comprising —NCH₂CH₂—, wherein R′ comprises a hydrocarbon chain, the repeating units arranged in any order in the copolymer; (2) 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; and (3) inactivating at least ninety percent of the pathogen within a time period of less than ninety minutes from contact of the pathogen with the copolymer.

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First Claim