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| Content Provider | Springer Nature Link |
|---|---|
| Author | Krishnaraj, Chandran Harper, Stacey L. Choe, Ho Sung Kim, Kwang Pyo Yun, Soon Il |
| Copyright Year | 2015 |
| Abstract | In the present study, silver nanoparticles (AgNPs) synthesized from aqueous leaves extract of Malva crispa and their mode of interaction with food- and water-borne microbes were investigated. Formation of AgNPs was conformed through UV–Vis, FE-SEM, EDS, AFM, and HR-TEM analyses. Further the concentration of silver (Ag) in the reaction mixture was conformed through ICP-MS analysis. Different concentration of nanoparticles (1–3 mM) tested to know the inhibitory effect of bacterial pathogens such as Bacillus cereus, Staphylococcus aureus, Listeria monocytogenes, Escherichia coli, Salmonella typhi, Salmonella enterica and the fungal pathogens of Penicillium expansum, Penicillium citrinum, Aspergillus oryzae, Aspergillus sojae and Aspergillus niger. Interestingly, nanoparticles synthesized from 2 to 3 mM concentration of AgNO3 showed excellent inhibitory activities against both bacterial and fungal pathogens which are well demonstrated through well diffusion, poison food technique, minimum inhibitory concentration (MIC), and minimum fungicidal concentration (MFC). In addition, mode of interaction of nanoparticles into both bacterial and fungal pathogens was documented through Bio-TEM analysis. Further the genomic DNA isolated from test bacterial strains and their interaction with nanoparticles was carried out to elucidate the possible mode of action of nanoparticles against bacteria. Interestingly, AgNPs did not show any genotoxic effect against all the tested bacterial strains which are pronounced well in agarose gel electrophoresis and for supporting this study, UV–Vis and Bio-TEM analyses were carried out in which no significant changes observed compared with control. Hence, the overall results concluded that the antimicrobial activity of biogenic AgNPs occurred without any DNA damage. |
| Starting Page | 1943 |
| Ending Page | 1958 |
| Page Count | 16 |
| File Format | |
| ISSN | 16157591 |
| Journal | Bioprocess Engineering |
| Volume Number | 38 |
| Issue Number | 10 |
| e-ISSN | 16157605 |
| Language | English |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2015-07-16 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Malva crispa Linn., leaves extract AgNPs Antibacterial Antifungal DNA interactions Biotechnology Industrial and Production Engineering Environmental Engineering/Biotechnology Industrial Chemistry/Chemical Engineering Food Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Bioengineering Biotechnology |
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