Fluid interface calorimetry

Amphiphilic molecules spontaneously adsorb to fluid polar-nonpolar interfaces. The timescale of such adsorption depends on the molecular size and structure solute. This process should be accompanied by a power heat exchange that could detected commercial isothermal calorimeters. Air is injected in bulk different aqueous solutions contained sample cell an titration calorimeter. formation resulting bubbles leads liquid/air interface which solute adsorb. Continuous injection experiments produce multiple as well with static stand from capillary tip, aiming observe slow processes, were performed. associated formation, growth release air liquids was measured. Different independent contributions can pressure change gas phase, evaporation-condensation solvent, increase interfacial area, capacity content, bubble observed. periodic pattern produced continuous at constant rate used determine surface tension liquids, including (bio)macromolecules.