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A facile construction of bacterial cellulose/ZnO nanocomposite films and their photocatalytic and antibacterial properties.
- Source :
-
International journal of biological macromolecules [Int J Biol Macromol] 2019 Jul 01; Vol. 132, pp. 692-700. Date of Electronic Publication: 2019 Apr 01. - Publication Year :
- 2019
-
Abstract
- Bacterial cellulose (BC) has numerous excellent properties but the absence of antibacterial activity restricts its applications in biomedical field. Therefore, in order to introduce the antibacterial characteristics into BC; herein, a facile method for incorporation of ZnO nanoparticles (ZnO-NPs) is presented. BC films were first immersed in zinc nitrate solution, followed by treating with NaOH solution, the BC loaded ZnO nanocomposite films were dried by a sheet former instrument at 80 °C for 20 min. The obtained BC/ZnO nanocomposites were characterized by different techniques. XRD results showed the hexagonal wurtzite structure of ZnO-NPs while FE-SEM results displayed the particle size of ZnO-NPs was ranging from 70 to 100 nm. Thermogravimetric study revealed the thermal stability of nanocomposite films. The nanocomposite exhibited photocatalytic activity and revealed 91% degradation of methyl orange (MO) under UV-irradiation within 2 h. Moreover, the nanocomposites demonstrated significant UV-blocking properties and showed antibacterial activities against tested Gram-positive and Gram-negative bacterial strains. This work provides a simple and novel method for the synthesis of BC/ZnO nanocomposite as a functional biomaterial.<br /> (Copyright © 2019. Published by Elsevier B.V.)
Details
- Language :
- English
- ISSN :
- 1879-0003
- Volume :
- 132
- Database :
- MEDLINE
- Journal :
- International journal of biological macromolecules
- Publication Type :
- Academic Journal
- Accession number :
- 30946911
- Full Text :
- https://doi.org/10.1016/j.ijbiomac.2019.03.240