Based on the force-balance argument, a simple model is derived to map the contact-line mobility during bubble growth. It is found that below a certain threshold pressure, the bubble base expansion is increasingly likely to overcome the strong pinning of the contact line at the interface between...
line pinningContact angle relaxation was measured for captive air bubbles placed on solid surfaces of varying degrees of heterogeneity, roughness, and stability, in water. The experimental results indicate that both advancing and receding contact angles undergo slow relaxation in these water-air-solid ...
surface bubbles on a solid surface are\ndirected by a laser to move at high speeds (> 1.8 mm/s), and we elucidate the\nmechanism to be the de-pinning of the three-phase contact line (TPCL) by rapid\nplasmonic heating of nanoparticles (NPs) deposited in-situ during bubble\nmovement. ...