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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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Tammelin, Tekla
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (26/26 displayed)
- 2024Interfacial Engineering of Soft Matter Substrates by Solid-State Polymer Adsorption
- 2024Advanced nanocellulose-based electrochemical sensor for tetracycline monitoringcitations
- 2023Protein Adsorption and Its Effects on Electroanalytical Performance of Nanocellulose/Carbon Nanotube Composite Electrodescitations
- 2022Pilot-scale modification of polyethersulfone membrane with a size and charge selective nanocellulose layercitations
- 2022Pilot-scale modification of polyethersulfone membrane with a size and charge selective nanocellulose layercitations
- 2021Functionalized Nanocellulose/Multiwalled Carbon Nanotube Composites for Electrochemical Applicationscitations
- 2020Upcycling Poultry Feathers with (Nano)cellulose:Sustainable Composites Derived from Nonwoven Whole Feather Preformscitations
- 2019Cationic starch as strengthening agent in nanofibrillated and bacterial cellulose nanopapers
- 2018Structural distinction due to deposition method in ultrathin films of cellulose nanofibrescitations
- 2018Foam-formed fibre materials
- 2018Effect of cellulosic fibers on foam dynamics
- 2017Strongly reduced thermal conductivity in hybrid ZnO/nanocellulose thin filmscitations
- 2017Sample geometry dependency on the measured tensile properties of cellulose nanopaperscitations
- 2017In situ TEMPO surface functionalization of nanocellulose membranes for enhanced adsorption of metal ions from aqueous mediumcitations
- 2015Phase behaviour and stability of nanocellulose stabilized oil-in-water emulsions
- 2015Correlation between cellulose thin film supramolecular structures and interactions with watercitations
- 2014Nanofibrillated cellulose, poly(vinyl alcohol), montmorillonite clay hybrid nanocomposites with superior barrier and thermomechanical propertiescitations
- 2012Nano-fibrillated cellulose vs bacterial cellulose
- 2012High performance cellulose nanocompositescitations
- 2012High performance cellulose nanocomposites:Comparing the reinforcing ability of bacterial cellulose and nanofibrillated cellulosecitations
- 2012Nano-fibrillated cellulose vs bacterial cellulose:Reinforcing ability of nanocellulose obtained topdown or bottom-up
- 2011Quantitative assessment of the enzymatic degradation of amorphous cellulose by using a quartz crystal microbalance with dissipation monitoringcitations
- 2011Nanocomposite packaging materials from polysaccharides and montmorillonite
- 2010Multifunctional barrier films and coatings from biopolymers via enzymatic modification
- 2010Bio-hybrid nanocomposite coatings from polysaccharides and nanoclay
- 2003Adsorption of cationic starch on anionic silica studied by QCM-D ; Kationisen tärkkelyksen adsorptio anioniselle SiO2-pinnalle
Places of action
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conferencepaper
Multifunctional barrier films and coatings from biopolymers via enzymatic modification
Abstract
Widely used synthetic polymers (e.g. HDPE) in food packaging possess excellent barrier properties against moisture and water vapour, but they have high permeability for oxygen and grease. Unlike plastics, films casted of carbohydrates or proteins are good barriers against oxygen and grease. However, polysaccharides and most proteins are hydrophilic in nature and films produced from these materials are often hygroscopic, resulting in substantial loss of their barrier properties at high humidity. Commonly suggested methods to decrease moisture sensitivity of bio-based polymers are chemical grafting with hydrophobic components, such as natural waxes or fatty acids, or compounding with synthetic polymer. Novel enzymatic technology was developed to decrease hydrophilicity of natural biopolymers. Enzymatic cross-linking and subsequent functionalisation of hemicellulose and protein with hydrophobic alkyl gallates (e.g. dodecyl gallate) resulted in improved barrier properties at humid conditions. The method involved utilisation of oxidative enzymes, tyrosinase and laccases, to solidify the matrix material into an insoluble network structure with concomitant modification with hydrophobic functional groups. Barrier properties could be further improved by controlled addition of inert nanomaterial, such as nanoclay.