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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 3, Iss. 10 — Sep. 22, 2008

Formation of superhydrophobic poly(dimethysiloxane) by ultrafast laser-induced surface modification

Tae Oh Yoon, Hyun Joo Shin, Sae Chae Jeoung, and Youn-Il Park  »View Author Affiliations

Optics Express, Vol. 16, Issue 17, pp. 12715-12725 (2008)

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The formation of hemispherical nanostructures and microscaled papilla by ultrafast laser irradiation was found to be a potential method to generate superhydrophbic surface of synthetic polymers. Irradiation of femtosecond laser creates roughened poly(dimethylsiloxane) (PDMS) surface in nano- and microscales, of which topography fairly well imitate a Lotus leaf in nature. The modified surface showed superhydrophobicity with a contact angle higher than 170° as well as sliding angle less than 3°. We further demonstrated that negative replica of the processed PDMS surface exhibit large contact angle hysteresis with a sliding angle of 90° while the positive replica maintains superhydrophobicity.

© 2008 Optical Society of America

OCIS Codes
(160.5470) Materials : Polymers
(220.4241) Optical design and fabrication : Nanostructure fabrication

ToC Category:

Original Manuscript: May 12, 2008
Revised Manuscript: June 22, 2008
Manuscript Accepted: August 3, 2008
Published: August 7, 2008

Virtual Issues
Vol. 3, Iss. 10 Virtual Journal for Biomedical Optics

Tae Oh Yoon, Hyun Joo Shin, Sae Chae Jeoung, and Youn-Il Park, "Formation of superhydrophobic poly(dimethysiloxane) by ultrafast laser-induced surface modification," Opt. Express 16, 12715-12725 (2008)

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