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Jeong, Hoon Eui
Multiscale Biomimetics & Manufacturing Lab
Research Interests
  • Biomimetics
  • Multiscale manufacturing
  • Micro/nanofabrication

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Nanoengineered multiscale hierarchical structures with tailored wetting properties

Cited 109 times inthomson ciCited 115 times inthomson ci
Title
Nanoengineered multiscale hierarchical structures with tailored wetting properties
Other Titles
Nanoengineered multiscale hierarchical structures with tailored wetting properties
Author
Jeong, Hoon EuiLee, Sung HoonKim, Jae KwanSuh, Kahp Y.
Keywords
SUPERHYDROPHOBIC SURFACE; HYDROPHOBIC SURFACES; WATER-REPELLENT; WETTABILITY; LITHOGRAPHY; BEHAVIOR; MICROSTRUCTURES; FABRICATION; ROUGHNESS; PRESSURE
Issue Date
2006-02
Publisher
AMER CHEMICAL SOC
Citation
LANGMUIR, v.22, no.4, pp.1640 - 1645
Abstract
A simple method for fabricating micro/nanoscale hierarchical structures is presented using a two-step temperature-directed capillary molding technique. This lithographic method involves a sequential application of the molding process in which a uniform polymer-coated surface is molded with a patterned mold by means of capillary force above the glass transition temperature of the polymer. Various microstructures and nanostructures were fabricated with minimum resolution down to similar to 50 nm with good reproducibility. Also contact angle measurements of water indicated that two wetting states coexist on a multiscale hierarchical structure where heterogeneous wetting is dominant for the microstructure and homogeneous wetting for the nanostructure. A simple theoretical model combining these two wetting states was presented, which was in good agreement with the experimental data. Using this approach, multiscale hierarchical structures for biomimetic functional surfaces can be fabricated with precise control over geometrical parameters and the wettability of a solid surface can be tailored in a controllable manner
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DOI
10.1021/la0526434
ISSN
0743-7463
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