title: Replication of butterfly wing and natural lotus leaf structures by nanoimprint on silica sol-gel films.
abstract: An original and low cost method for the fabrication of patterned surfaces bioinspired from butterfly wings and lotus leaves is presented. Silica-based sol-gel films are thermally imprinted from elastomeric molds to produce stable structures with superhydrophobicity values as high as 160 degrees water contact angle. The biomimetic surfaces are demonstrated to be tuned from superhydrophobic to superhydrophilic by annealing between 200 degrees C and 500 degrees C.
authors.affiliation: Unité mixte CNRS/Saint Gobain Saint Gobain Recherche, BP135, 93303 Aubervilliers, France.
authors.forename: Tamar
authors.initials: T
authors.lastname: Saison
authors.forename: Christophe
authors.initials: C
authors.lastname: Peroz
authors.forename: Vanessa
authors.initials: V
authors.lastname: Chauveau
authors.forename: Serge
authors.initials: S
authors.lastname: Berthier
authors.forename: Elin
authors.initials: E
authors.lastname: Sondergard
authors.forename: Hervé
authors.initials: H
authors.lastname: Arribart
mesh_terms: D000818:Animals; D040761:Biomimetic Materials / Q000138:chemical synthesis*; D002080:Butterflies / Q000033:anatomy & histology*; D008567:Membranes, Artificial; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D044367:Phase Transition; D018515:Plant Leaves / Q000033:anatomy & histology*; D012822:Silicon Dioxide / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D008567:Membranes, Artificial; D012822:Silicon Dioxide