Antibacterial activity and biodegradation of cellulose fiber blends with incorporated ZnO

Domen Malis (Avtor), Barbara Jeršek (Avtor), Brigita Tomšič (Avtor), Danaja Štular (Avtor), Barbara Golja (Avtor), Gregor Kapun (Avtor), Barbara Simončič (Avtor)

Povzetek

This research aimed to study the influence of lyocell with incorporated ZnO (CLY) for antibacterial activity and biodegradation of fiber blends composed of viscose (CV), flax (LI), and CLY. Fiber blended samples with an increased weight fraction of CLY fibers were composed, and single CLY, CV and LI fibers were also used for comparison. Antibacterial activity was determined for the Gram-negative Escherichia coli and the Gram-positive Staphylococcus aureus bacteria. The biodegradation of fiber blends was investigated by the soil burial test. The results show that the single CLY fibers exhibited high antimicrobial activity against both E. coli and S. aureus bacteria and that the presence of LI fibers in the blended samples did not significantly affect antibacterial activity against E. coli, but drastically decreased the antibacterial activity against S. aureus. LI fibers strongly promoted the growth of S. aureus and, consequently, impaired the antimicrobial performance of ZnO against this bacterium. The presence of CLY fibers slowed down, but did not prevent, the biodegradation process of the fiber blends, even at the highest ZnO concentration. The soil that was in contact with the fiber blended samples during their burial was not contaminated to such an extent as to affect the growth of sprouts, confirming the sustainability of the fiber blends.

Ključne besede

mešanica vlaken;celulozna vlakna;ZnO;protimikrobna aktivnost;biorazgradljivost;onesnaženost tal;fiber blends;cellulose fibers;antibacterial activity;biodegradation;soil contamination;

Podatki

Jezik:	Angleški jezik
Leto izida:	2019
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UL NTF - Naravoslovnotehniška fakulteta
UDK:	677
COBISS:	3672176
ISSN:	1996-1944
Št. ogledov:	205
Št. prenosov:	70
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Slovenski jezik
Sekundarne ključne besede:	mešanica vlaken;celulozna vlakna;ZnO;protimikrobna aktivnost;biorazgradljivost;onesnaženost tal;
Vrsta dela (COBISS):	Članek v reviji
Strani:	str. 1-12
Letnik:	ǂVol. ǂ12
Zvezek:	ǂiss. ǂ20
Čas izdaje:	17. Oct. 2019
DOI:	10.3390/ma12203399
ID:	13925519