Controlling the Location and Spatial Extent of Nanobubbles Using Hydrophobically Nanopatterned Surfaces

Controlling the Location and Spatial Extent of Nanobubbles Using Hydrophobically Nanopatterned Surfaces

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...

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Bibliographic Details
Main Authors: Agrawal, Abhinandan, Park, Juhyun, Ryu, Du Y., Hammond, Paula T., Russell, Thomas P., McKinley, Gareth H.
Format: Preprint
Language:en_US
Published: 2005
Subjects:
Nanobubbles
AFM
Hydrophobic surface
Lithography
Online Access:http://hdl.handle.net/1721.1/25318
Description
Summary: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.

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