Antimicrobial cationic polyamines
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United States of America Patent
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Jul 26, 2016
Grant Date -
Dec 3, 2015
app pub date -
May 28, 2014
filing date -
May 28, 2014
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Abstract
Antimicrobial, non-hemolytic cationic polyamines were prepared by treating partially N-acylated polyethylenimines and/or partially oxidized polyethylenimines with a protic acid. The cationic polyamines can have a linear or branched polyethylenimine backbone structure. Preferably, the cationic polyamines comprise pendant urea groups, which can be introduced via a cyclic carbonate comprising a pendant urea group. The cationic polyamines can be active against a tuberculosis mycobacterium at low concentration. The cationic polyamines are also effective against Gram-negative Escherichia coli and Pseudomonas aeruginosa, Gram-positive Staphylococcus aureus, and fungus Candida albicans in solution and in the form of a film.
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