Shirzadi-Ahodashti, M., Hashemi, Z., Mortazavi, Y. et al. (3 more authors) (2021) Discovery of high antibacterial and catalytic activities against multi-drug resistant clinical bacteria and hazardous pollutants by biosynthesized of silver nanoparticles using Stachys inflata extract (AgNPs@SI). Colloids and Surfaces A: Physicochemical and Engineering Aspects, 617. 126383. ISSN 0927-7757
Abstract
For the first time in this work, silver nanoparticles were synthesized by the facile, rapid and eco-friendly process using Stachys inflata (S. inflate) extract then applied as catalytic and antibacterial agents. Characteristics of biosynthesized AgNPs@SI were determined with UV–vis, DLS, TEM, FESEM, FT-IR and XRD techniques. The reaction parameters including AgNO3 concentration, temperature, contact time and pH were discussed and optimized. The TEM and FESEM results revealed spherical morphology of AgNPs@SI with size ranging from 35−45 nm. The antibacterial activity of AgNPs@SI was investigated against gram-positive bacteria like SA-1 (S. aureus), EF-1 (E. faecalis) and gram-negative bacteria like EC-1 (E. coli), PM-1 (P. mirabilis), PA-1 (P. aeruginosa), AB-1 (A. baumannii) and KP-1 (K. pneumonia). The minimum inhibitory concentration (MIC) values of 0.4, 0.4, 0.23, 0.23, 0.9, 0.1 and 0.1 μg/mL were obtained for synthesized AgNPs@SI against PA-1, PM-1, EF-1, AB-1, KP-1, SA-1 and EC-1, respectively. In addition, biosynthesized AgNPs@SI showed antibacterial potency against multi–drug resistant bacteria. It is noteworthy that the obtained AgNPs@SI illustrated significant catalytic performance for degradation of different types of hazardous pollutants like methyl violet and eriochrome black T under UV and visible light irradiations. These findings suggest that the biosynthesized AgNPs is a suitable agent in biomedical and environment fields.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Keywords: | Green synthesis, Antibacterial, Photocatalytic degradation, Silver nanoparticles, Multi-drug resistant |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemistry (Leeds) > Inorganic Chemistry (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 03 Jul 2024 13:52 |
Last Modified: | 03 Jul 2024 13:52 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.colsurfa.2021.126383 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:214127 |