Abstract
Due to its eco-friendliness, cost-effectiveness, ability to be handled safely, and a wide variety of biological activities, the green plant-mediated synthesis of nanoparticles has become increasingly popular. The present work deals with the green synthesis and characterization of silver nanoparticles (AgNPs) using Elaeagnus umbellata (fruit) and the evaluation of its antibacterial, antioxidant, and phytotoxic activities. For the synthesis of AgNPs, fruit extract was treated with a 4 mM AgNO3 solution at room temperature, and a color change was observed. In UV-Visible spectroscopy, an absorption peak formation at 456 nm was the sign that AgNPs were present in the reaction solution. Scanning electron microscopy and physicochemical X-ray diffraction were used to characterize AgNPs, which revealed that they were crystalline, spherical, and had an average size of 11.94 ± 7.325 nm. The synthesized AgNPs showed excellent antibacterial activity against Klebsiella pneumoniae (14 mm), Staphylococcus aureus (13.5 mm), Proteus mirabilis (13 mm), and Pseudomonas aeruginosa (12.5 mm), as well as considerable antioxidant activity against DPPH with 69% inhibition at an IC50 value of 43.38 µg/mL. AgNPs also exhibited a concentration-dependent effect on rice plants. Root and shoot length were found to be positively impacted at all concentrations, i.e., 12.5 µg/mL, 25 µg/mL, 50 µg/mL, and 100 µg/mL. Among these concentrations, the 50 µg/mL concentration of AgNPs was found to be most effective. The plant biomass decreased at higher AgNP exposure levels (i.e., 100 µg/mL), whereas 50 µg/mL caused a significant increase in plant biomass as compared to the control. This study provides an eco-friendly method for the synthesis of AgNPs which can be used for their antibacterial and antioxidant activities and also as growth promoters of crop plants.
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Claims 10
Claim · model-written summary
AgNPs showed antibacterial activity against Klebsiella pneumoniae (14 mm).
- Taxon
- Elaeagnus umbellata
Elaeagnus umbellatae2 - Treatment
- synthesized AgNPse1
- Interactor
- Klebsiella pneumoniae
Klebsiella pneumoniaee1other - Outcome
- antibacterial activitye1
- Value
- 14 mme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The synthesized AgNPs showed excellent antibacterial activity against Klebsiella pneumoniae (14 mm), Staphylococcus aureus (13.5 mm), Proteus mirabilis (13 mm), and Pseudomonas aeruginosa (12.5 mm)”
e2“using Elaeagnus umbellata (fruit)”
Claim · model-written summary
AgNPs showed antibacterial activity against Staphylococcus aureus (13.5 mm).
- Taxon
- Elaeagnus umbellataElaeagnus umbellatae2
- Treatment
- synthesized AgNPse1
- Interactor
- Staphylococcus aureus
Staphylococcus aureuse1other - Outcome
- antibacterial activitye1
- Value
- 13.5 mme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The synthesized AgNPs showed excellent antibacterial activity against Klebsiella pneumoniae (14 mm), Staphylococcus aureus (13.5 mm), Proteus mirabilis (13 mm), and Pseudomonas aeruginosa (12.5 mm)”
e2“using Elaeagnus umbellata (fruit)”
Claim · model-written summary
AgNPs showed antibacterial activity against Proteus mirabilis (13 mm).
- Taxon
- Elaeagnus umbellataElaeagnus umbellatae2
- Treatment
- synthesized AgNPse1
- Interactor
- Proteus mirabilis
Proteus mirabilise1other - Outcome
- antibacterial activitye1
- Value
- 13 mme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The synthesized AgNPs showed excellent antibacterial activity against Klebsiella pneumoniae (14 mm), Staphylococcus aureus (13.5 mm), Proteus mirabilis (13 mm), and Pseudomonas aeruginosa (12.5 mm)”
e2“using Elaeagnus umbellata (fruit)”
Claim · model-written summary
AgNPs showed antibacterial activity against Pseudomonas aeruginosa (12.5 mm).
- Taxon
- Elaeagnus umbellataElaeagnus umbellatae2
- Treatment
- synthesized AgNPse1
- Interactor
- Pseudomonas aeruginosa
Pseudomonas aeruginosae1other - Outcome
- antibacterial activitye1
- Value
- 12.5 mme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The synthesized AgNPs showed excellent antibacterial activity against Klebsiella pneumoniae (14 mm), Staphylococcus aureus (13.5 mm), Proteus mirabilis (13 mm), and Pseudomonas aeruginosa (12.5 mm)”
e2“using Elaeagnus umbellata (fruit)”
Claim · model-written summary
AgNPs showed considerable antioxidant activity against DPPH, with 69% inhibition.
- Taxon
- Elaeagnus umbellataElaeagnus umbellatae2
- Outcome
- antioxidant activity against DPPHe3
- Value
- 69% inhibitione3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“using Elaeagnus umbellata (fruit)”
e3“considerable antioxidant activity against DPPH with 69% inhibition at an IC50 value of 43.38 µg/mL”
Claim · model-written summary
AgNPs had an IC50 value of 43.38 µg/mL for DPPH.
- Taxon
- Elaeagnus umbellataElaeagnus umbellatae2
- Outcome
- IC50 valuee3
- Value
- 43.38 µg/mLe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“using Elaeagnus umbellata (fruit)”
e3“considerable antioxidant activity against DPPH with 69% inhibition at an IC50 value of 43.38 µg/mL”
Claim · model-written summary
Root and shoot length of rice were positively impacted by AgNPs at 12.5, 25, 50 and 100 µg/mL.
- Taxon
- rice
Oryza sativae5 - Treatment
- 12.5 µg/mL, 25 µg/mL, 50 µg/mL, and 100 µg/mLe4
- Outcome
- Root and shoot lengthe4
- Direction
- positively impactede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Root and shoot length were found to be positively impacted at all concentrations, i.e., 12.5 µg/mL, 25 µg/mL, 50 µg/mL, and 100 µg/mL”
e5“AgNPs also exhibited a concentration-dependent effect on rice plants”
Claim · model-written summary
The 50 µg/mL AgNP concentration was the most effective of the tested concentrations for rice growth.
- Taxon
- riceOryza sativae5
- Treatment
- 50 µg/mL concentration of AgNPse6
- Outcome
- most effectivee6
- Direction
- most effectivee6
- Comparator
- these concentrationse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“AgNPs also exhibited a concentration-dependent effect on rice plants”
e6“Among these concentrations, the 50 µg/mL concentration of AgNPs was found to be most effective”
Claim · model-written summary
Plant biomass decreased at the higher AgNP exposure level of 100 µg/mL.
- Taxon
- riceOryza sativae5
- Treatment
- higher AgNP exposure levels (i.e., 100 µg/mL)e7
- Outcome
- plant biomasse7
- Direction
- decreasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“AgNPs also exhibited a concentration-dependent effect on rice plants”
e7“The plant biomass decreased at higher AgNP exposure levels (i.e., 100 µg/mL)”
Claim · model-written summary
The 50 µg/mL AgNP treatment significantly increased plant biomass compared with the control.
- Taxon
- riceOryza sativae5
- Treatment
- 50 µg/mLe6
- Outcome
- plant biomasse6
- Direction
- increasee6
- Comparator
- controle6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“AgNPs also exhibited a concentration-dependent effect on rice plants”
e6“50 µg/mL caused a significant increase in plant biomass as compared to the control”
The same questions in other papers
silver nanoparticle · growth · Oryza sativa (rice)Results differ
2 papers in the same direction as this paper · 8 in the opposite direction
- positive
- positive
- positive
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