Effects of Hofmeister anions on DPPC Langmuir monolayers at the air-water interface

The effect of sodium salts of different monovalent anions belonging to the Hofmeister series on Langmuir monolayers of DPPC is presented. The findings reveal that anions partition into or bind to the looser liquid-expanded phase, thus providing entropic stabilization of that phase, but do not penetrate into or bind to the domains of the liquid-condensed phase.