Antibacterial Efficacy of Biosynthetic Zinc Oxide Nanoparticles by Lactobacillus Plantarum Combined with Poly-?-hydroxybutyrate Against Pathogenic Bacteria
Keywords:ZnONPs, Lactobacillus plantarum, PHB, antibacterial efficacy and bionanocomposite.
The good capability of zinc-tolerant probiotic of Lactobacillus plantarum tolerating high concentrations
of Zinc+2 and producing Zinc Oxide Nanoparticles highlights the unique characteristics of these
bacteria as a natural microbial cell nano-factory for a more efficient and environmentally friendly
process of biosynthesis of these nanoparticles. The morphological and structural properties of Zinc Oxide
Nanoparticles were determined by X-ray diffraction, Atomic Force Microscope and Field Emission Scanning
Electron Microscope showed that the synthesized nanoparticles were crystalline, moderately stable, roughly
spherical, hexonal in shape and pure
We examined the antibacterial activity of the Zinc Oxide Nanoparticles and Zinc Oxide Nanoparticles/
Poly-?- hydroxybutyrate bionanocomposite on some pathogenic bacteria .It is clear in this the study that
Zinc Oxide Nanoparticles/Poly-?-hydroxybutyrate bionanocomposite has stronger inhibitory effect on
pathogenic bacteria compared with Zinc Oxide Nanoparticles only because the bionanocomposites exhibited
reduced water uptake and superior gas as well as vapour barrier properties and causes increasing damage of
the pathogenic bacteria.
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