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Fabrication of Paper Sheets Coatings Based on Chitosan/Bacterial Nanocellulose/ZnO with Enhanced Antibacterial and Mechanical Properties
Zitatschl├╝ssel WOS:000676414800001
Autor Jablonska, Joanna and Onyszko, Magdalena and Konopacki, Maciej and Augustyniak, Adrian and Rakoczy, Rafal and Mijowska, Ewa
Jahr 2021
DOI 10.3390/ijms22147383
Adresse ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND
Journal INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Jahrgang 22
Nummer 14
Monat JUL
Verlag MDPI
Zusammenfassung Here, we designed paper sheets coated with chitosan, bacterial cellulose (nanofibers), and ZnO with boosted antibacterial and mechanical activity. We investigated the compositions, with ZnO exhibiting two different sizes/shapes: (1) rods and (2) irregular sphere-like particles. The proposed processing of bacterial cellulose resulted in the formation of nanofibers. Antimicrobial behavior was tested using E. coli ATCC 25922 (TM) following the ASTM E2149-13a standard. The mechanical properties of the paper sheets were measured by comparing tearing resistance, tensile strength, and bursting strength according to the ISO 5270 standard. The results showed an increased antibacterial response (assigned to the combination of chitosan and ZnO, independent of its shape and size) and boosted mechanical properties. Therefore, the proposed composition is an interesting multifunctional mixture for coatings in food packaging applications.
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