Lecture
This lecture delves into the stabilization mechanism of colloidal particles, exploring the energy equation for spherical particles near interfaces, the impact of radius on stability, and the comparison between Pickering emulsions and surfactant-stabilized emulsions. It covers the production and applications of emulsions, foams, and capsules, emphasizing the importance of encapsulation for protection and controlled release. The destabilization processes of foams, including drainage and Ostwald ripening, are discussed, along with methods to enhance foam stability using appropriate surfactants or nanoparticles. The lecture also touches on the role of porogens and solvents in foam stability, highlighting the significance of particle surface modification in colloids.