Functionalization of Chitosan-Chitin Nanowhiskers Films By Impregnation With Essential Oils Via Supercritical CO2
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F25%3A10255619" target="_blank" >RIV/61989100:27640/25:10255619 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s10924-024-03413-3" target="_blank" >https://link.springer.com/article/10.1007/s10924-024-03413-3</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10924-024-03413-3" target="_blank" >10.1007/s10924-024-03413-3</a>
Alternative languages
Result language
angličtina
Original language name
Functionalization of Chitosan-Chitin Nanowhiskers Films By Impregnation With Essential Oils Via Supercritical CO2
Original language description
Herein, we prepared functional chitosan films reinforced with chitin nanocrystals by supercritical solvent impregnation with a variety of essential oils, i.e. mentha, clove, and cinnamon. Two different chitosan film structures were evaluated, smooth and compact films obtained by casting; and highly porous films prepared by lyophilization process. The effect of the film morphology, essential oil impregnation and the presence of chitin nanowhiskers on the properties of the films were extensively investigated by scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy and tensile testing; while the bioactive functions were evaluated by measuring the antioxidant and antimicrobial activities. It was found that the impregnation of essential oils is much higher in porous films, confering notable antioxidant and antimicrobial activity. The incorporation of chitin nanocrystal does not influence on the impregnation process, and only improves slightly the antioxidant performance, which is clearly appreciable in the case of films obtained by casting with an increase of ca. 35% from chitosan without to samples with 5 wt% of chitin nanowhiskers. Nevertheless, an important enhancement of the mechanical properties, particularly in elastic modulus, is clearly appreciated with the incorporation of chitin nanowhisker into the films, with values of 50% higher in comparison with chitosan without nanowishers. However, the elongation at break and tensile strength values suffer a slight decrease.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10404 - Polymer science
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Polymers and the Environment
ISSN
1566-2543
e-ISSN
1572-8919
Volume of the periodical
33
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
16
Pages from-to
96-111
UT code for WoS article
001328933600008
EID of the result in the Scopus database
2-s2.0-85205558353