DPPC-DOPC Langmuir monolayers modified by hydrophilic silica nanoparticles: Phase behaviour, structure and rheology

► Hydrophilic nanoparticles interacts with lipid monolayers. ► Segregation of nanoparticles to the fluid interface. ► Modification of the interfacial structure of the monolayers. ► Changes in the phase behaviour. ► Influence on the mechanical response of the films.