title: A PARADOXICAL RELATION BETWEEN ZETA POTENTIAL AND SUSPENSION STABILITY IN S AND R VARIANTS OF INTESTINAL BACTERIA.
abstract: The relation between electrokinetic potential and suspension stability of four strains of non-flagellate intestinal bacteria has been studied. The smooth forms have zeta-potentials which approximate zero over a wide range of pH and salt concentration, yet nevertheless form stable suspensions. The rough variants have zeta-potentials which vary with pH and electrolyte concentration in the familiar way. The rough forms have values of zeta-potential critical for their suspension stability.
authors.affiliation: Department of Bacteriology, School of Medicine, University of Pennsylvania, Philadelphia.
authors.forename: E W
authors.initials: EW
authors.lastname: Joffe
authors.forename: S
authors.initials: S
authors.lastname: Mudd