OVERALL AIM OF THE PRESENT PROJECT IS TO DEVELOP A MECHANISTIC DESCRIPTION OF THE STABILIZATION OR DESTABILIZATION OF FOAMS AND EMULSIONS WHICH CAN BE ACCOMPLISHED BY VARIOUS COMBINATIONS OF SURFACTANTS POLYMERS AND (NANO)PARTICLES. IN THIS RESPECT WE FOCUS IN PARTICULAR ON SURFACE MODIFICATION OF (NANO)PARTICLES BY MACROMOLECULES (POLYMERS) AND BIOMACROMOLECULES (PROTEINS) AND THE CONCOMITANT CHANGES TO PARTICLE PERFORMANCE AT THE INTERFACE. EXPERIMENTAL WORK IS CONTEMPLATED ON THE THREE SYSTEM LEVELS THE INTERFACE THE LIQUID FILM AND THE FORMULATED DISPERSION. EACH LEVEL IS INTERROGATED SO THAT STRUCTURE-PROPERTY RELATIONSHIPS CAN BE ESTABLISHED ALONG THE HIERARCHY OF INCREASING COMPLEXITY. SIMILAR OBJECTIVES WERE THE PREVIOUS TARGET OF THE FASES-MAP DURING RECENT YEARS; HOWEVER SYSTEMS OF THIS COMPLEXITY REQUIRES MUCH MORE SYSTEMATIC WORK. ADDITIONALLY THE COMPARISON OF FOAM AND EMULSION SYSTEMS ENABLED THROUGH COLLABORATION WITH THE FOAM-C INSTRUMENT AND THE SYSTEMATIC CONSIDERATION OF SURFACE MODIFIED (NANO)PARTICLES AS STABILIZERS/DESTABILIZERS WILL PROVIDE A NEW LEVEL OF GENERALIZATION.