| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Teichert, Christian
Montanuniversität Leoben
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2023Hierarchical Surface Pattern on Ni-Free Ti-Based Bulk Metallic Glass to Control Cell Interactions.
- 2023Improved nanoindentation methods for polymer based multilayer film cross-sectionscitations
- 2023Hierarchical Surface Pattern on Ni‐Free Ti‐Based Bulk Metallic Glass to Control Cell Interactionscitations
- 2022Nanoindentation for Fast Investigation of PET Film Degradationcitations
- 2021Local-probe based electrical characterization of a multiphase intermetallic γ-TiAl based alloy
- 2021A compressible plasticity model for pulp fibers under transverse loadcitations
- 2021Morphological characterization of semi-crystalline POM using nanoindentationcitations
- 2021Comprehensive investigation of the viscoelastic properties of PMMA by nanoindentationcitations
- 2019Design of Friction, Morphology, Wetting, and Protein Affinity by Cellulose Blend Thin Film Compositioncitations
- 2017Atomic-force microscopy investigations on fracture surfaces of inorganic, fullerene-like WS 2 (IF-WS 2 )–epoxy nanocomposites
- 2016Topography effects in AFM force mapping experiments on xylan-decorated cellulose thin films.citations
- 2014Magnetic force imaging of a chain of biogenic magnetite and Monte Carlo analysis of tip-particle interactioncitations
- 2012Analysis of lignin precipitates on ozone treated kraft pulp by FTIR and AFMcitations
- 2012Ion beam irradiation of cuprate high-temperature superconductors: Systematic modification of the electrical properties and fabrication of nanopatternscitations
- 2010Surface planarization and masked ion-beam structuring of YBa2Cu3O7 thin filmscitations
Places of action
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article
Design of Friction, Morphology, Wetting, and Protein Affinity by Cellulose Blend Thin Film Composition
Abstract
Cellulose derivate phase separation in thin films was applied to generate patterned films with distinct surface morphology. Patterned polymer thin films are utilized in electronics, optics, and biotechnology but films based on bio-polymers are scarce. Film formation, roughness, wetting, and patterning are often investigated when it comes to characterization of the films. Frictional properties, on the other hand, have not been studied extensively. We extend the fundamental understanding of spin coated complex cellulose blend films via revealing their surface friction using Friction Force Microscopy (FFM). Two cellulose derivatives were transformed into two-phase blend films with one phase comprising trimethyl silyl cellulose (TMSC) regenerated to cellulose with hydroxyl groups exposed to the film surface. Adjusting the volume fraction of the spin coating solution resulted in variation of the surface fraction with the other, hydroxypropylcellulose stearate (HPCE) phase. The film morphology confirmed lateral and vertical separation and was translated into effective surface fraction. Phase separation as well as regeneration contributed to the surface morphology resulting in roughness variation of the blend films from 1.1 to 19.8 nm depending on the film composition. Friction analysis was successfully established, and then revealed that the friction coefficient of the films could be tuned and the blend films exhibited lowered friction force coefficient compared to the single-component films. Protein affinity of the films was investigated with bovine serum albumin (BSA) and depended mainly on the surface free energy (SFE) while no direct correlation with roughness or friction was found. BSA adsorption on film formed with 1:1 spinning solution volume ratio was an outlier and exhibited unexpected minimum in adsorption.