E. coli	Escherichia coli
GNB	Gram-negative bacteria
MDR	Multidrug resistant
CM	Cytoplasmic membrane
CLSI	Clinical and laboratory standards institute
MH	Mueller–Hinton
SEM	Scanning electron microscopy
FICI	Fractional inhibitory concentration index
PBS	Phosphate-buffered saline
PI	Propidium iodide
SPF	Specified pathogen free
MIC	Minimum inhibitory concentration
S. typhimurium	Salmonella typhimurium
K. pneumoniae	Klebsiella pneumoniae