AVS 66th International Symposium & Exhibition
    Applied Surface Science Division Thursday Sessions
       Session AS-ThP

Paper AS-ThP12
Biocompatible and Robust Non-wetting Surface Inspired by Three Natural Organisms: Lotus Leaf, Mussel, and Sandcastle Worm

Thursday, October 24, 2019, 6:30 pm, Room Union Station B

Session: Applied Surface Science Poster Session
Presenter: Kiduk Han, POSTECH, Republic of Korea
Authors: K. Han, POSTECH, Republic of Korea
T.Y. Park, POSTEC, Republic of Korea
H.J. Cha, POSTECH, Republic of Korea
K. Yong, POSTECH, Republic of Korea
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When the contact angle of water to a specific surface exceeds 150°, the surface is referred to as superhydrophobic (SH) surface. This SH surface has been developed by mimicking the Lotus leaf structure and it is useful for preventing structural deformation, oxidation and contamination of materials that can be affected by water. However, the SH surface has a limitation in practical use due to its poor physical durability, and there has been a great difficulty in applying it to research fields such as medical and tissue engineering due to the biohazard of its components. To overcome these problems, we have developed a technique for producing biocompatible and robust SH surfaces using mussel adhesive-protein adhesive (iMglue), and have applied this technology to catheters and patches to confirm its biomedical utility. The nanoparticles were deposited on the iMglue by dip coating and spray coating method, and the surface energy of the particles was lowered through chemical reaction to produce a water repellent surface. This surface is expected to play an important role in biomedical field due to its antibacterial and wound closure capabilities.