Back to Search
Start Over
Green and facile synthesis of carboxymethylcellulose/ZnO nanocomposite hydrogels crosslinked with Zn 2+ ions.
- Source :
-
International journal of biological macromolecules [Int J Biol Macromol] 2020 Nov 01; Vol. 162, pp. 229-235. Date of Electronic Publication: 2020 Jun 20. - Publication Year :
- 2020
-
Abstract
- A green method was used for the preparation of functional carboxymethyl cellulose (CMC) hydrogel crosslinked by divalent zinc ions and incorporated with zinc oxide nanoparticles (ZnO) without using alkaline reagents. In the process, sodium carboxymethyl cellulose was used not only as a hydrogel matrix but also for the release of free hydroxyl groups, which increases the pH of the reaction mixture, consequently leading to the formation of ZnO. The chemical structure and morphology of the hydrogels were characterized using FTIR and FE-SEM analysis, respectively. The water absorption capacity of the hydrogels was studied as a function of temperature and pH. The results of FE-SEM showed the formation of ZnO particles in the hydrogel, while the water absorption capacity results supported the formation of zinc ion cross-linking within the carboxymethylcellulose chains. The CMC/ZnO nanocomposite hydrogel exhibited strong antimicrobial activity against pathogenic bacteria E. coli and L. monocytogenes.<br />Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.<br /> (Copyright © 2020 Elsevier B.V. All rights reserved.)
- Subjects :
- Carboxymethylcellulose Sodium chemical synthesis
Cross-Linking Reagents chemistry
Escherichia coli drug effects
Hydrogen-Ion Concentration
Ions chemistry
Listeria monocytogenes drug effects
Microscopy, Electron, Scanning
Nanocomposites chemistry
Nanocomposites ultrastructure
Nanogels ultrastructure
Spectroscopy, Fourier Transform Infrared
Temperature
Water chemistry
X-Ray Diffraction
Zinc Oxide pharmacology
Anti-Bacterial Agents pharmacology
Carboxymethylcellulose Sodium chemistry
Nanogels chemistry
Zinc chemistry
Zinc Oxide chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 1879-0003
- Volume :
- 162
- Database :
- MEDLINE
- Journal :
- International journal of biological macromolecules
- Publication Type :
- Academic Journal
- Accession number :
- 32569689
- Full Text :
- https://doi.org/10.1016/j.ijbiomac.2020.06.155