| Autor: |
Karageorgou D; Department of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, Greece., Zygouri P; Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece., Tsakiridis T; Department of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, Greece., Hammami MA; Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14853, USA., Chalmpes N; Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece., Subrati M; Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece., Sainis I; Cancer Biobank Center, University of Ioannina, 45110 Ioannina, Greece., Spyrou K; Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece., Katapodis P; Department of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, Greece., Gournis D; Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece., Stamatis H; Department of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, Greece. |
| Abstrakt: |
In this work, we demonstrated the ability of the cyanobacterium Pseudanabaena/Limnothrix sp. to produce ultra-small silver nanoparticlesin the forms of metallic silver (Ag 0 ) and silver oxides (Ag x O y ) via a facile green synthetic process. The biological compounds in the cyanobacterial cellular extract acted both as reducing agents for silver ions and functional stabilizing agents for the silver nanoparticles. Furthermore, the antibacterical activity of the as-synthesized nanoparticles against Gram-negative Escherichia coli and Gram-positive Corynebacterium glutamicum bacterial cells was evaluated. The experimental results revealed a remarkable bactericidal activity of the nanoparticles that was both time-dependent and dose-dependent. In addition to their excellent bactericidal properties, the developed nanoparticles can be used as nanosupports in various environmental, biological, and medical applications. |
