| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Nypelö, Tiina
Chalmers University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2023Visualizing cellulose chains with cryo scanning transmission electron microscopy
- 2023Carboxylation of sulfated cellulose nanocrystals by family AA9 lytic polysaccharide monooxygenasescitations
- 2022Xylan-cellulose thin film platform for assessing xylanase activitycitations
- 2021How cellulose nanofibrils and cellulose microparticles impact paper strength—A visualization approachcitations
- 2021Fat tissue equivalent phantoms for microwave applications by reinforcing gelatin with nanocellulosecitations
- 2020Lignocellulosics
- 2019Design of Friction, Morphology, Wetting, and Protein Affinity by Cellulose Blend Thin Film Compositioncitations
- 2018Adhesion properties of regenerated lignocellulosic fibres towards poly(lactic acid) microspheres assessed by colloidal probe techniquecitations
- 2018Self-Standing Nanocellulose Janus-Type Films with Aldehyde and Carboxyl Functionalitiescitations
- 2017Space-resolved thermal properties of thermoplastics reinforced with carbon nanotubescitations
- 2017Unmodified multi-wall carbon nanotubes in polylactic acid for electrically conductive injection-moulded compositescitations
- 2014Nanocellulose properties and applications in colloids and interfacescitations
- 2014Magneto-responsive hybrid materials based on cellulose nanocrystalscitations
- 2013Cellulose Nanofibrils: From Strong Materials to Bioactive Surfacescitations
- 2012Interactions between inorganic nanoparticles and cellulose nanofibrilscitations
Places of action
| Organizations | Location | People |
|---|
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.