| 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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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
Preparation of PDMS ultrathin films and patterned surface modification with cellulose
Abstract
<p>In this investigation, polydimethylsiloxane (PDMS) ultrathin films are prepared on a variety of solid surfaces by a simple and fast spin coating method, and patterned with the natural biopolymer cellulose via lithographic methods. Two surface patterning methods are developed to create coatings of hydrophilic cellulose, regenerated from trimethylsilyl cellulose (TMSC) on the PDMS thin films. In method 1, spin coated TMSC films on PDMS are covered with a lithographic mask and exposed to vapors of hydrochloric acid, which results in spatially separated cellulose pads surrounded by TMSC. Subsequent selective dissolution of TMSC with organic solvents results in a direct anchoring of cellulose pads on the PDMS. In method 2, PDMS thin films covered with a lithographic mask are exposed to UV/ozone, spray coated with TMSC and regenerated to give cellulose. The conversion of hydrophobic TMSC into hydrophilic cellulose coatings is confirmed by wettability and fluorescence measurements. The developed structures are highly transparent and stable in aqueous solutions (pH 3-9) and organic solvents. The surface properties of the polymer films are characterized using a quartz crystal microbalance with dissipation (QCM-D), ellipsometry, X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), contact angle and streaming potential measurements.</p>