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Journal of Nanomaterials
Volume 2011, Article ID 134860, 4 pages
Research Article

Bionic Duplication of Fresh Navodon septentrionalis Fish Surface Structures

1State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China
2School of Science, Dalian Ocean University, Dalian 116023, China
3School of Mechanical Engineering, Dalian Ocean University, Dalian 116023, China

Received 4 November 2010; Revised 20 December 2010; Accepted 17 January 2011

Academic Editor: Xiaogong Wang

Copyright © 2011 Bing Qu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Biomimetic superhydrophobic surface was fabricated by replicating topography of the fresh fish skin surface of Navodon septentrionalis with polydimethylsiloxane (PDMS) elastomer. A two-step replicating method was developed to make the surface structure of the fresh fish skin be replicated with high fidelity. After duplication, it was found that the static contact angle of the replica was as large as 173°. Theoretic analysis based on Young's and Cassie-Baxter (C-B) model was performed to explain the relationship between structure and hydrophobicity.