4.6 Article

Nanostructure-Dependent Water-Droplet Adhesiveness Change in Superhydrophobic Anodic Aluminum Oxide Surfaces: From Highly Adhesive to Self-Cleanable

Journal

LANGMUIR
Volume 26, Issue 3, Pages 1412-1415

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/la904095x

Keywords

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Funding

  1. Seoul RBD [10543]
  2. Ministry of Health & Welfare, Republic of Korea [A050750]
  3. Korean Ministry of Science & Technology (MOST) [M60601010002-06E0101-00210]
  4. Korea Science and Engineering Foundation through the Pioneer Converging Technology [M10711160001-08M1116-00110]
  5. Korea Evaluation Institute of Industrial Technology (KEIT) [10033477] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
  6. Korea Health Promotion Institute [A050750] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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Water-droplet adhesiveness was freely controlled oil it single platform of superhydrophobic anodized aluminum oxide (AAO) within the range from highly adhesive to self-cleanable. Changing the Structure from nanopore to nanopillar arrays at the Surface caused a dramatic increase in the receding angle and a decrease in the hysteresis of water contact angles. The presence of dead-end nanopores but nanoholes through nanoholes was recognized as one of the main causes of the adhesiveness of superhydrophobic surfaces. The adhesiveness-controllable superhydrophobic AAO call be all excellent platform oil which to elucidate the physical nature of the wetting phenomenon related to the nanostructure and has promising potential in technological applications.

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