however , application of membrane-interacting agents like tris ( hydroxymethyl ) aminomethane ( tris ) -hydrochloride , ethylenediaminetetraacetate ( na salt ) ( edta ) , divalent cations , and sublethal doses of the cationic antibacterial agents polymyxin b and chlorhexidine induced specific fluorescent labeling of envelope proteins and lipids but not of cytoplasmic compounds , with the exception of a soluble protein with a molecular weight of 46,000 in sodium dodecyl sulfate-polyacrylamide gel electrophoresis .
C0279516
antibacterial agents
C0032535
polymyxin b