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Sol‐Gel Dewetting: Fabrication of Biomimetic Micropatterned Surfaces by Sol–Gel Dewetting (Adv. Mater. Interfaces 4/2019)
Author(s) -
Colusso Elena,
Martucci Alessandro,
Neto Chiara
Publication year - 2019
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.201970030
Subject(s) - dewetting , materials science , sol gel , fabrication , chemical engineering , condensation , bilayer , polymer , nanotechnology , composite material , thin film , membrane , chemistry , medicine , alternative medicine , pathology , biochemistry , physics , engineering , thermodynamics
A bilayer of sol‐gel films is made to dewet by exposure to ethanol solvent. The top hydrophilic silica film dewets into bumps on the bottom hydrophobic silica film. The result is a patterned surface that facilitates the condensation and growth of water droplets from the atmosphere. The resulting patterns are more robust and are less sticky to water droplets than similarly produced polymer patterns. In the cover image, a cartoon of water droplets is superimposed on a real optical micrographs of a sol‐gel micrometric pattern. More details can be found in article number 1801629 by Elena Colusso, Alessandro Martucci, and Chiara Neto.