title: Distortion in Two-Dimensional Shapes of Merging Nanobubbles: Evidence for Anisotropic Gas Flow Mechanism.
abstract: Two nanobubbles that merge in a graphene liquid cell take elliptical shapes rather than the ideal circular shapes. This phenomenon was investigated in detail by using in situ transmission electron microscopy (TEM). The results show that the distortion in the two-dimensional shapes of the merging nanobubbles is attributed to the anisotropic gas transport flux between the nanobubbles. We also predicted and confirmed the same phenomenon in a three-nanobubble system, indicating that the relative size difference is important in determining the shape of merging nanobubbles.
authors.forename: Jong Bo
authors.initials: JB
authors.lastname: Park
authors.forename: Dongha
authors.initials: D
authors.lastname: Shin
authors.forename: Sangmin
authors.initials: S
authors.lastname: Kang
authors.forename: Sung-Pyo
authors.initials: SP
authors.lastname: Cho
authors.affiliation: Graduate School of Convergence Science and Technology, Seoul National University , Suwon 443-270, Korea.
authors.forename: Byung Hee
authors.initials: BH
authors.lastname: Hong