Direct measurement of the nanobubble-induced weak depletion attraction between a spherical particle and a flat surface in an aqueous solution
Abstract
Previously, it has been shown that stable nanobubbles (∼150 nm) free in an alkaline α-cyclodextrin (α-CD) solution can be removed by repeated filtration and regenerated by air injection. Recently, we found that the existence of nanobubbles can induce attraction between a spherical latex particle (radius ∼3.2 μm) and a flat hydrophilic surface. Using