3D Micropatterned Surface Inspired by Salvinia molesta via Direct Laser Lithography

Omar Tricinci*, Tercio Terencio, Barbara Mazzolai, Nicola M. Pugno, Francesco Greco, Virgilio Mattoli

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Biomimetic functional surfaces are attracting increasing attention for their relevant technological applications. Despite these efforts, inherent limitations of microfabrication techniques prevent the replication of complex hierarchical microstructures. Using a 3D laser lithography technique, we fabricated a 3D patterned surface bioinspired to Salvinia molesta leaves. The artificial hairs, with crownlike heads, were reproduced by scaling down (ca. 100 times smaller) the dimensions of natural features, so that microscale hairs with submicrometric resolution were attained. The micropatterned surface, in analogy with the natural model, shows interesting properties in terms of hydrophobicity and air retention when submerged by water, even if realized with a hydrophilic material. Furthermore, we successfully demonstrated the capability to promote localized condensation of water droplets from moisture in the atmosphere.

Original languageEnglish
Pages (from-to)25560-25567
Number of pages8
JournalACS Applied Materials and Interfaces
Issue number46
Publication statusPublished - 25 Nov 2015
Externally publishedYes


  • 3D laser lithography
  • air trapping
  • biomimetics
  • fog collecting
  • hydrophobic surface

ASJC Scopus subject areas

  • Materials Science(all)

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