isolates multi resistant to antibiotics and observed by Scanning electron microscopy
DOI:
https://doi.org/10.25130/tjps.v22i4.730Abstract
One hundred fifty six samples collected included: inflammation of the urinary tract, swabs wounds and pus from patients coming to Rizgary Teaching Hospital and Rozhawa Hospital in Erbil city from March to September 2013, scrubbed and confirmed the diagnosis (42) strain which belongs to staphylococcus aureus and by (26.9%) based on cultural characteristics, microscopically features and biochemical tests in addition to the API Staph. These strains sensitivity to 12 types of antibiotics. It gave the species a high resistance against the Ampicillin (AM / 10μg) by 88% and resistant to Amoxicillin (AX / 25μg)by (81%) were less resistant to Nitrofurantoin (NF / 300μg), Ciprofloxacin (CIP / 5μg), Gentamicin (GM / 10μg ) by (31,26,21.4%) respectively Ten isolates were selected according to their pattern of the highest resistance as these showing multi-drug resistances and tested to specify their minimum inhibitory concentration (MIC) for the antibiotics and two types of Nanoparticles include Silver in different sizes (20, 90)nm and Zinc Oxide in different sizes (20, 30, 50~150)nm. The results showed that the MIC for Ag 20 nm was between (650-2600) μg/ml while Ag90nm was between (325 -2600) μg/ml and the MIC for ZnO20nm between (325-2600) μg/ml and MIC of ZnO 30, 50 ~ 150nm between (162.5-2600) μg/ml. Synergism effect between the antibiotics and the Nanoparticles when they integrate increased their effect of Staphylococcus aureus. Morphological changes of bacteria found using light and scanning electron microscope (SEM) when treating with Nanoparticles. While there a pressure on the bacterial cell surface with losing of bacterial compound.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2023 Tikrit Journal of Pure Science
This work is licensed under a Creative Commons Attribution 4.0 International License.
Tikrit Journal of Pure Science is licensed under the Creative Commons Attribution 4.0 International License, which allows users to copy, create extracts, abstracts, and new works from the article, alter and revise the article, and make commercial use of the article (including reuse and/or resale of the article by commercial entities), provided the user gives appropriate credit (with a link to the formal publication through the relevant DOI), provides a link to the license, indicates if changes were made, and the licensor is not represented as endorsing the use made of the work. The authors hold the copyright for their published work on the Tikrit J. Pure Sci. website, while Tikrit J. Pure Sci. is responsible for appreciate citation of their work, which is released under CC-BY-4.0, enabling the unrestricted use, distribution, and reproduction of an article in any medium, provided that the original work is properly cited.