Nurudeen Yekeen et al, studied the impact of SiO2 and Al2O3 nanoparticles on mixed solutions with SDS at bulk and bubble levels. They observed maximum surfactant adsorption at a concentration of 3 wt%. Increasing nanoparticle concentration enhanced foam stability but diminished foamability. Nanoparticles resulted in smaller bubbles and higher bubble concentration, indicating reduced coalescence. Moreover, nanoparticles extended foam half-life, stabilized bubbles, and elevated apparent viscosity through adsorption and accumulation at foam borders.