Controlling the Location and Spatial Extent of Nanobubbles Using Hydrophobically Nanopatterned Surfaces
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05-P-09.pdf
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Author(s)
Agrawal, Abhinandan
Park, Juhyun
Ryu, Du Y.
Hammond, Paula T.
Russell, Thomas P.
McKinley, Gareth H.
Date Issued
August 22, 2005
Series/Report no.
05-P-09
Abstract
The presence of nanobubbles—as imaged with tapping-mode atomic force microscopy—
is controlled using nanopatterned surfaces possessing repeating patterns of polystyrene (hydrophobic domains) and polymethyl-methacrylate (hydrophilic domains). For nanobubbles to be present, we find that, in addition to controlling the degree of surface hydrophobicity, it is important for the spatial dimensions of the hydrophobic domains on the nanopatterned surface to be commensurate with the equilibrium topology of the nanobubbles.
Subjects
Nanobubbles
AFM
Hydrophobic surface
Lithography
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