at Google ScholarTitle data
Puretskiy, Nikolay ; Stoychev, Georgi ; Stamm, Manfred ; Ionov, Leonid:
Switchable Surfaces Based on Freely Floating Colloidal Particles.
In: ACS Applied Materials & Interfaces.
Vol. 2
(2010)
Issue 10
.
- pp. 2944-2948.
ISSN 1944-8252
DOI: https://doi.org/10.1021/am100634m
Abstract in another language
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.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Institutions of the University: | Faculties > Faculty of Engineering Science > Professor Biofabrication > Professor Biofabrication - Univ.-Prof. Dr. Leonid Ionov Faculties Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Professor Biofabrication |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 500 Science > 540 Chemistry |
| Date Deposited: | 20 Jun 2017 12:23 |
| Last Modified: | 09 Mar 2022 14:23 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/37697 |