Green Synthesis of Silver Nanoparticles Using <i>Olea europaea</i> Leaf Extract for Their Enhanced Antibacterial, Antioxidant, Cytotoxic and Biocompatibility Applications

Herein, we report the green synthesis of silver nanoparticles (OE-Ag NPs) by ecofriendly green processes using biological molecules of <i>Olea europaea</i> leaf extract. Green synthesized OE-Ag NPs were successfully characterized using different spectroscopic techniques. Antibacterial ac...

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Autores principales: Hanen Sellami, Shakeel Ahmad Khan, Ishaq Ahmad, Abdullah A. Alarfaj, Abdurahman H. Hirad, Ahmed E. Al-Sabri
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Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/618536c1148144318cfdf9cb030969a8
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spelling oai:doaj.org-article:618536c1148144318cfdf9cb030969a82021-11-25T17:57:49ZGreen Synthesis of Silver Nanoparticles Using <i>Olea europaea</i> Leaf Extract for Their Enhanced Antibacterial, Antioxidant, Cytotoxic and Biocompatibility Applications10.3390/ijms2222125621422-00671661-6596https://doaj.org/article/618536c1148144318cfdf9cb030969a82021-11-01T00:00:00Zhttps://www.mdpi.com/1422-0067/22/22/12562https://doaj.org/toc/1661-6596https://doaj.org/toc/1422-0067Herein, we report the green synthesis of silver nanoparticles (OE-Ag NPs) by ecofriendly green processes using biological molecules of <i>Olea europaea</i> leaf extract. Green synthesized OE-Ag NPs were successfully characterized using different spectroscopic techniques. Antibacterial activity of OE-Ag NPs was assessed against four different bacteriological strains using the dilution serial method. The cytotoxic potential was determined against MCF-7 carcinoma cells using MTT assay in terms of cell viability percentage. Antioxidant properties were evaluated in terms of 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging. Biocompatibility was further examined by incubating the synthesized NPs with hMSC cells for 24 h. The results were demonstrated that synthesized OE-Ag NPs presented excellent log<sub>10</sub> reduction in the growth of all the tested bacterial strains, which as statistically equivalent (<i>p</i> > 0.05) to the standard antibiotic drug. Moreover, they also demonstrated excellent cytotoxic efficacy against the MCF-7 carcinoma cells compared to plant lead extract and Com-Ag NPs. Green synthesized OE-Ag NPs appeared more biocompatible to hMSC and 293T cells compared to Com-Ag NPs. Excellent biological results of the OE-Ag NPs might be attributed to the synergetic effect of NPs’ properties and the adsorbed secondary metabolites of plant leaf extract. Hence, this study suggests that synthesized OE-Ag NPs can be a potential contender for their various biological and nutraceutical applications. Moreover, this study will open a new avenue to produce biocompatible nanoparticles with additional biological functionalities from the plants.Hanen SellamiShakeel Ahmad KhanIshaq AhmadAbdullah A. AlarfajAbdurahman H. HiradAhmed E. Al-SabriMDPI AGarticleAg NPs<i>Olea europaea</i>green synthesisantioxidantantimicrobialcytotoxicBiology (General)QH301-705.5ChemistryQD1-999ENInternational Journal of Molecular Sciences, Vol 22, Iss 12562, p 12562 (2021)
institution DOAJ
collection DOAJ
language EN
topic Ag NPs
<i>Olea europaea</i>
green synthesis
antioxidant
antimicrobial
cytotoxic
Biology (General)
QH301-705.5
Chemistry
QD1-999
spellingShingle Ag NPs
<i>Olea europaea</i>
green synthesis
antioxidant
antimicrobial
cytotoxic
Biology (General)
QH301-705.5
Chemistry
QD1-999
Hanen Sellami
Shakeel Ahmad Khan
Ishaq Ahmad
Abdullah A. Alarfaj
Abdurahman H. Hirad
Ahmed E. Al-Sabri
Green Synthesis of Silver Nanoparticles Using <i>Olea europaea</i> Leaf Extract for Their Enhanced Antibacterial, Antioxidant, Cytotoxic and Biocompatibility Applications
description Herein, we report the green synthesis of silver nanoparticles (OE-Ag NPs) by ecofriendly green processes using biological molecules of <i>Olea europaea</i> leaf extract. Green synthesized OE-Ag NPs were successfully characterized using different spectroscopic techniques. Antibacterial activity of OE-Ag NPs was assessed against four different bacteriological strains using the dilution serial method. The cytotoxic potential was determined against MCF-7 carcinoma cells using MTT assay in terms of cell viability percentage. Antioxidant properties were evaluated in terms of 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging. Biocompatibility was further examined by incubating the synthesized NPs with hMSC cells for 24 h. The results were demonstrated that synthesized OE-Ag NPs presented excellent log<sub>10</sub> reduction in the growth of all the tested bacterial strains, which as statistically equivalent (<i>p</i> > 0.05) to the standard antibiotic drug. Moreover, they also demonstrated excellent cytotoxic efficacy against the MCF-7 carcinoma cells compared to plant lead extract and Com-Ag NPs. Green synthesized OE-Ag NPs appeared more biocompatible to hMSC and 293T cells compared to Com-Ag NPs. Excellent biological results of the OE-Ag NPs might be attributed to the synergetic effect of NPs’ properties and the adsorbed secondary metabolites of plant leaf extract. Hence, this study suggests that synthesized OE-Ag NPs can be a potential contender for their various biological and nutraceutical applications. Moreover, this study will open a new avenue to produce biocompatible nanoparticles with additional biological functionalities from the plants.
format article
author Hanen Sellami
Shakeel Ahmad Khan
Ishaq Ahmad
Abdullah A. Alarfaj
Abdurahman H. Hirad
Ahmed E. Al-Sabri
author_facet Hanen Sellami
Shakeel Ahmad Khan
Ishaq Ahmad
Abdullah A. Alarfaj
Abdurahman H. Hirad
Ahmed E. Al-Sabri
author_sort Hanen Sellami
title Green Synthesis of Silver Nanoparticles Using <i>Olea europaea</i> Leaf Extract for Their Enhanced Antibacterial, Antioxidant, Cytotoxic and Biocompatibility Applications
title_short Green Synthesis of Silver Nanoparticles Using <i>Olea europaea</i> Leaf Extract for Their Enhanced Antibacterial, Antioxidant, Cytotoxic and Biocompatibility Applications
title_full Green Synthesis of Silver Nanoparticles Using <i>Olea europaea</i> Leaf Extract for Their Enhanced Antibacterial, Antioxidant, Cytotoxic and Biocompatibility Applications
title_fullStr Green Synthesis of Silver Nanoparticles Using <i>Olea europaea</i> Leaf Extract for Their Enhanced Antibacterial, Antioxidant, Cytotoxic and Biocompatibility Applications
title_full_unstemmed Green Synthesis of Silver Nanoparticles Using <i>Olea europaea</i> Leaf Extract for Their Enhanced Antibacterial, Antioxidant, Cytotoxic and Biocompatibility Applications
title_sort green synthesis of silver nanoparticles using <i>olea europaea</i> leaf extract for their enhanced antibacterial, antioxidant, cytotoxic and biocompatibility applications
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/618536c1148144318cfdf9cb030969a8
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