| 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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Zhou, Qi
KTH Royal Institute of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2023Elucidating Structure Formation in Highly Oriented Triple Cation Perovskite Filmscitations
- 2023Electrical current modulation in wood electrochemical transistorcitations
- 2023Electrical current modulation in wood electrochemical transistorcitations
- 2023Revealing the effect of medium-range structure on silicate glass hardnesscitations
- 2023In Situ Lignin Sulfonation for Highly Conductive Wood/Polypyrrole Porous Compositescitations
- 2022Utilizing native lignin as redox-active material in conductive wood for electronic and energy storage applicationscitations
- 2016Review of the recent developments in cellulose nanocomposite processingcitations
- 2016Investigation of the changes in aerosolization behavior between the jet-milled and spray-dried colistin powders through surface energy characterizationcitations
- 2015Core-shell cellulose nanofibers for biocomposites - Nanostructural effects in hydrated statecitations
- 2014Surface modification of cellulose nanocrystals by grafting with poly(lactic acid)citations
- 2013Nanocomposites of bacterial cellulose nanofibers and chitin nanocrystalscitations
- 2013Effect of surface coating with magnesium stearate via mechanical dry powder coating approach on the aerosol performance of micronized drug powders from dry powder inhalerscitations
- 2011Characterization of the surface properties of a model pharmaceutical fine powder modified with a pharmaceutical lubricant to improve flow via a mechanical dry coating approachcitations
- 2009Nanostructured biocomposites based on bacterial cellulosic nanofibers compartmentalized by a soft hydroxyethylcellulose matrix coatingcitations
Places of action
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article
Nanocomposites of bacterial cellulose nanofibers and chitin nanocrystals
Abstract
<p>An environmentally friendly approach was implemented for the production of nanocomposites with bactericidal activity, using bacterial cellulose (BC) nanofibers and chitin nanocrystals (ChNCs). The antibacterial activity of ChNCs prepared by acid hydrolysis, TEMPO-mediated oxidation or partial deacetylation of α-chitin powder was assessed and the structure of the ChNC nanoparticles was characterized by X-ray diffraction, atomic force microscopy, and solid-state <sup>13</sup>C-NMR. The partially deacetylated ChNCs (D-ChNC) showed the strongest antibacterial activity, with 99 ± 1% inhibition of bacterial growth compared to control samples. Nanocomposites were prepared from BC nanofibers and D-ChNC by (i) in situ biosynthesis with the addition of D-ChNC nanoparticles in the culture medium of Acetobacter aceti, and (ii) post-modification by mixing D-ChNC with disintegrated BC in an aqueous suspension. The structure and mechanical properties of the BC/D-ChNC nanocomposites were characterized by Fourier transform infrared spectroscopy, elemental analysis, field-emission scanning electron microscopy, and an Instron universal testing machine. The bactericidal activity of the nanocomposites increased with the D-ChNC content, with a reduction in bacterial growth by 3.0 log units when the D-ChNC content was 50%. D-ChNC nanoparticles have great potential as substitutes for unfriendly antimicrobial compounds such as heavy metal nanoparticles and synthetic polymers to introduce antibacterial properties to cellulosic materials.</p>