bei Google ScholarTitelangaben
Puretskiy, Nikolay ; Stoychev, Georgi ; Stamm, Manfred ; Ionov, Leonid:
Switchable Surfaces Based on Freely Floating Colloidal Particles.
In: ACS Applied Materials & Interfaces.
Bd. 2
(2010)
Heft 10
.
- S. 2944-2948.
ISSN 1944-8252
DOI: https://doi.org/10.1021/am100634m
Abstract
We report a novel approach for the design of switchable surfaces using hydrophobic wax films with incorporated hydrophilic particles. It was found that native and 3-aminopropyltriethoxysilane-modified 200 nm large silica particles almost completely immerse in wax after annealing in dry environment above wax melting point. On the other hand, the degree of particles immersion in wax decreases after annealing in aqueous environment. The surface properties of the particle-wax films are, therefore, switched between hydrophobic and hydrophilic states after annealing in air and in water, respectively. The hydrophilicity/hydrophibicity can be frozen by the cooling below the wax melting point. We also demonstrated possibility to produce hydrophilic/hydrophobic pattern on wax-particle films using local heating.We report a novel approach for the design of switchable surfaces using hydrophobic wax films with incorporated hydrophilic particles. It was found that native and 3-aminopropyltriethoxysilane-modified 200 nm large silica particles almost completely immerse in wax after annealing in dry environment above wax melting point. On the other hand, the degree of particles immersion in wax decreases after annealing in aqueous environment. The surface properties of the particle-wax films are, therefore, switched between hydrophobic and hydrophilic states after annealing in air and in water, respectively. The hydrophilicity/hydrophibicity can be frozen by the cooling below the wax melting point. We also demonstrated possibility to produce hydrophilic/hydrophobic pattern on wax-particle films using local heating.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Institutionen der Universität: | Fakultäten > Fakultät für Ingenieurwissenschaften > Professur Biofabrikation > Professur Biofabrikation - Univ.-Prof. Dr. Leonid Ionov Fakultäten Fakultäten > Fakultät für Ingenieurwissenschaften Fakultäten > Fakultät für Ingenieurwissenschaften > Professur Biofabrikation |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Eingestellt am: | 20 Jun 2017 12:23 |
| Letzte Änderung: | 09 Mär 2022 14:23 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/37697 |