| 초록 |
Typical colloidal particles irreversibly attach to fluid-fluid interfaces due to the reduction of a large amount of surface free energy. Particles-stabilized emulsions can be obtained by inducing adsorption of colloidal particles to emulsion surfaces composed of two immiscible fluid phases that leads to lowering of interfacial tension and stabilization of the interface. Compared to the extensive investigations that have been reported to date, with regard to interparticle interactions, assembly, mechanical/rheological properties of particle-laden interfaces, the relatively small number of quantitative studies have focused on the electrostatic interactions and dynamics preceding charged particles adsorbing to a charged interface. Using optical laser tweezers, we quantitatively and statistically investigated the heterogeneous adsorption behaviors of colloidal particles to an oil-water interface. |
