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2017-07-05 - Colloque/Présentation - communication orale - Anglais - 32 page(s)

Druart M.E., Recloux Isaline, Billet S., Derouaux Adeline, Boonaert Christophe, Van deWeerdt Cécile, Olivier Marie-Georges , "Design of mesoporous sol-gel coatings for anti-fingerprint applications on glass" in SMT31 - International Conference on Surface Modification Technologies, Mons, Belgique, 2017

  • Codes CREF : Corrosion des matériaux (DI2114)
  • Unités de recherche UMONS : Science des Matériaux (F502)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)
  • Centres UMONS : Ingénierie des matériaux (CRIM)
Texte intégral :

Abstract(s) :

(Anglais) Nowadays, the use of mesoporous sol-gel films as smart coatings is growing. Their porosity is used to embed active species in applications such as drug delivery, catalysis, sensors, active corrosion protection, … The film mesoporosity is produced by evaporation induced self-assembly (EISA) process. This process is based on the addition of a templating agent in sol-gel formulation. The thermal removal of surfactant agent allows to control the coating mesostructure. In this work, the mesostructure of the sol-gel layer is designed to be used as reservoir for active biomolecules. In order to assure a good incorporation and storage of biomolecules, the size of mesopores and their configuration were tuned as a function of application and synthesis parameters. The effects of the sol-gel composition and deposition process on the sol-gel mesostructure were evaluated. Scanning electron microscopy (SEM) and water adsorption/desorption isotherms recorded with a quartz crystal microbalance (QCM) were used to characterize the morphologies of the sol-gel film. Rheological measurements were carried out to check the stability of the sol-gel solution. The anti-fingerprint performance due to the combination of mesoporous film and enzymatic solutions were assessed by using an artificial sebum.