Recent Advances in Green Synthesis of Silver Nanoparticles and Their Applications: About Future Directions. A Review

Abdelghany, Tarek M.; Al-Rajhi, Aisha M. H.; Abboud, Mohamed; Alawlaqi, Mohamed M.; Magdah, A. Ganash; Helmy, Eman A.; Mabrouk, Ahmed S.

doi:10.1007/s12668-017-0413-3

Cited by 325 publications

(173 citation statements)

References 79 publications

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“…Chemical synthesis of α‐Cr 2 O 3 NPs is discouraged due to toxicity issues, while the physical methods are often expensive and costly, whereas plant‐mediated synthesis is ecofriendly, rapid, cost‐effective with a high degree of biocompatibility . In this study, we have demonstrated green synthesis of pure phase α‐Cr 2 O 3 NPs, using C. viminalis floral extracts as an ecofriendly, low‐cost reducing and stabilizing agent.…”

Section: Resultsmentioning

confidence: 98%

“…Various techniques have been used for the synthesis of α‐Cr 2 O 3 , such as precipitation gelation, precipitation, sol‐gel and oxidation of chromium in oxygen . However, such chemical methods often require the use of toxic chemicals that can generate hazardous waste, and sometimes toxic chemicals can remain attached to the NPs making them less biocompatible . On the other hand, physical methods for synthesis of NPs are energy intensive.…”

Section: Introductionmentioning

confidence: 99%

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Physiochemical properties and novel biological applications of Callistemon viminalis‐mediated α‐Cr₂O₃ nanoparticles

Hassan

Khalil

Solangi

et al. 2019

Applied Organom Chemis

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We report an eco-friendly synthesis of α-Cr 2 O 3 nanoparticles (NPs) using Callistemon viminalis (Bottle Brush) flower extracts as an efficient reducing and capping agent. NPs of sizes 15 nm and 17 nm were synthesized by annealing them at 400°C and 500°C, respectively, which were characterized by X-ray diffraction, UV-Vis, Fourier transform-infrared, high-resolution-transmission electron microscopy/scanning electron microscopy, SAED, energy-dispersive X-ray spectroscopy and SQUID. Microplate-based assay was used for examining antibacterial potential against 12 pathogenic bacterial strains, and their minimum inhibitory concentrations were calculated. MTT cytotoxic assay was accomplished on Leishmania tropica amastigotes and promastigotes, which revealed IC 50 values of 44 μg/ml and 10.56 μg/ml, respectively. An IC 50 value of 46.32 μg/ml was obtained for HepG2 cancer cells. Enzyme inhibition studies indicated good acetylcholinesterase, moderate butyrylcholinesterase and low alpha-glucosidase inhibition. Hemolytic assay indicated hemocompatibility at low concentration. In addition, good DPPH radical scavenging and moderate reducing power and total antioxidant potential was revealed by α-Cr 2 O 3 NPs.

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Section: Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Physiochemical properties and novel biological applications of Callistemon viminalis‐mediated α‐Cr₂O₃ nanoparticles

Hassan

Khalil

Solangi

et al. 2019

Applied Organom Chemis

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“…Many “green routes” have been developed to create differently sized silver nanoparticles, but very few reports are available on protein‐directed shape control to create anisotropic nanoparticles. Xie et al have described the synthesis of silver nanoplates using unicellular green alga Chlorella vulgaris extract .…”

Section: Shape Control Of Ag Nanoparticles Using Proteinsmentioning

confidence: 99%

Protein‐Induced Shape Control of Noble Metal Nanoparticles

Chakraborty

Parak

2019

Adv Materials Inter

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Shape control of nanoparticles results in tuned optical properties which are indeed beneficial for different bio‐based applications. Shape controls in major cases, governed by toxic surfactants or harsh solvent conditions. To avoid the toxicity of surfactants used as shape controlling agent, different bio‐inspired synthesis of noble metal nanoparticles are developed. Proteins play a significant role here to create anisotropic nanoparticles without the use of any toxic surfactants. Various shape and size of nanoparticles are developed so far based on proteins. This progress report summarizes such protein‐induced shape controls of different noble metal nanoparticles and explain the recent understandings of this method from mechanistic point of view. The report also explains the new opportunities in this direction in near future.

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“…This indicates that the particle size is spherical shape with an average size of 29.34 nm for A. mexicana AgNPs and 32.42 nm for T. ulmifolia AgNPs. Both the particles have the particle size ranging from 23 to 38 nm, respectively (Abdelghany et al 2017).…”

Section: Scanning Electron Microscopy Analysismentioning

confidence: 99%

Yellow colored blooms of Argemone mexicana and Turnera ulmifolia mediated synthesis of silver nanoparticles and study of their antibacterial and antioxidant activity

Chandrasekhar

Vinay

2017

Appl Nanosci

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In the present work, AgNPs were prepared using a simple bio-reduction method. This is ecologically welcoming and cost-effective method. Yellow colored blooms concentrate of Argemone mexicana and Turnera ulmifolia are used as bio reducing agents in the study. The formation of silver nanoparticles was confirmed by UV-Vis spectrophotometer and characterization of the nanoparticles was done by FTIR, SEM, XRD and EDX. The Antibacterial action of silver nanoparticles was tested against Staphylococus aureus, Pseudomonas aeruginosa, Escherichia coli and Klebsiella aerogenes. The phytochemical analysis of the blooms concentrate has shown the existence of saponins, alkaloids, amino acids, phenols, tannins, terpenoids, flavonoids and cardiac glycosides. In vitro anti-oxidant action of both A. mexicana and T. ulmifolia AgNPs were studied by DPPH assay and reducing power assay.

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Recent Advances in Green Synthesis of Silver Nanoparticles and Their Applications: About Future Directions. A Review

Cited by 325 publications

References 79 publications

Physiochemical properties and novel biological applications of Callistemon viminalis‐mediated α‐Cr₂O₃ nanoparticles

Physiochemical properties and novel biological applications of Callistemon viminalis‐mediated α‐Cr₂O₃ nanoparticles

Protein‐Induced Shape Control of Noble Metal Nanoparticles

Yellow colored blooms of Argemone mexicana and Turnera ulmifolia mediated synthesis of silver nanoparticles and study of their antibacterial and antioxidant activity

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Recent Advances in Green Synthesis of Silver Nanoparticles and Their Applications: About Future Directions. A Review

Cited by 325 publications

References 79 publications

Physiochemical properties and novel biological applications of Callistemon viminalis‐mediated α‐Cr2O3 nanoparticles

Physiochemical properties and novel biological applications of Callistemon viminalis‐mediated α‐Cr2O3 nanoparticles

Protein‐Induced Shape Control of Noble Metal Nanoparticles

Yellow colored blooms of Argemone mexicana and Turnera ulmifolia mediated synthesis of silver nanoparticles and study of their antibacterial and antioxidant activity

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Product

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Physiochemical properties and novel biological applications of Callistemon viminalis‐mediated α‐Cr₂O₃ nanoparticles

Physiochemical properties and novel biological applications of Callistemon viminalis‐mediated α‐Cr₂O₃ nanoparticles