Polyethyleneimine is an effective permeabilizer of Gram-negative bacteria

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Polyethyleneimine is an effective permeabilizer of gram-negative bacteria.

The effect of the polycation polyethyleneimine (PEI) on the permeability properties of the Gram-negative bacterial outer membrane was investigated using Escherichia coli, Pseudomonas aeruginosa and Salmonella typhimurium as target organisms. At concentrations of less than 20 micrograms ml-1, PEI increased the bacterial uptake of 1-N-phenylnaphthylamine, which is a hydrophobic probe whose quantu...

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ژورنال

عنوان ژورنال: Microbiology

سال: 1997

ISSN: 1350-0872,1465-2080

DOI: 10.1099/00221287-143-10-3193