| People | Locations | Statistics |
|---|---|---|
| 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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Prof
Graz University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024Films based on TEMPO-oxidized chitosan nanoparticles
- 20233D-Printed Anisotropic Nanofiber Composites with Gradual Mechanical Propertiescitations
- 2022Organic acid cross-linked 3D printed cellulose nanocomposite bioscaffolds with controlled porosity, mechanical strength, and biocompatibilitycitations
- 2022Solid Phase Peptide Synthesis on Chitosan Thin Filmscitations
- 2021High oxygen barrier chitosan films neutralized by alkaline nanoparticlescitations
- 2021Design, Characterisation and Applications of Cellulose-Based Thin Films, Nanofibers and 3D Printed Structures
- 2020Design of stable and new polysaccharide nanoparticles composite and their interaction with solid cellulose surfacescitations
- 2019Novel Chitosan–Mg(OH)2-Based Nanocomposite Membranes for Direct Alkaline Ethanol Fuel Cellscitations
- 2019Affinity of Serum Albumin and Fibrinogen to Cellulose, Its Hydrophobic Derivatives and Blendscitations
- 2018Modification of cellulose thin films with lysine moietiescitations
- 2017Interaction of tissue engineering substrates with serum proteins and its influence on human primary endothelial cellscitations
- 2015Cellulose thin films from ionic liquid solutions
- 2014Preparation of PDMS ultrathin films and patterned surface modification with cellulosecitations
- 2014A study on the interaction of cationized chitosan with cellulose surfacescitations
- 2013Functional patterning of biopolymer thin films using enzymes and lithographic methodscitations
- 2013Chemical modification and characterization of poly(ethylene terephthalate) surfaces for collagen immobilizationcitations
- 2012Adsorption of carboxymethyl cellulose on polymer surfacescitations
- 2011Wettability and surface composition of partly and fully regenerated cellulose thin films from trimethylsilyl cellulosecitations
Places of action
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article
Design of stable and new polysaccharide nanoparticles composite and their interaction with solid cellulose surfaces
Abstract
<p>This study presents a simple and straightforward method for the preparation of aqueous-based stable polysaccharide-metal oxide nanoparticles composites — composed of carboxymethyl cellulose (CMC) and titanium dioxide nanoparticles (TiO<sub>2</sub> NPs), and their interaction with the cellulose surface, is presented. Using a combination of anionic polysaccharide CMC as a stabilizer agent and ultrasound probe sonication technique as an agitation tool, a highly stable dispersion of CMC/TiO<sub>2</sub> NPs composites is prepared in water, with and without the presence of calcium chloride electrolyte, at various pH values. The results of the dynamic light scattering and the zeta-potential measurements showed that the quality, the stability of the dispersions and the hydrodynamic radius of the particles (ca, 200–300 nm) remain well-preserved for several weeks under normal storage conditions. The transmission electron microscope revealed that the morphology and size of the dry particles size (ca. 25–50 nm) remain unchanged and are not influenced by the addition of the stabilizer CMC, the electrolyte or the pH value of the solution. The presence of electrolyte and the low pH of the dispersions strongly favored an irreversible and enhanced deposition of CMC/TiO<sub>2</sub> NPs on cellulose surface as showed by a quartz crystal microbalance with dissipation. A linear correlation between the concentration of CMC and the adsorbed mass of polymer and NPs, and the water content of the adsorbed layers is observed. X-ray photoelectron spectroscopy and atomic force microscopy are combined to prove the successful immobilization of polymer and NPs on the cellulose surface. The knowledge gained from this study can be extended not only for the stabilization of various metal oxide nanoparticles but also for the development of green polymer/NPs composites, that may have the potential to be used as functional coatings in biomedical (e.g. wound dressing) applications.</p>