Catalytic reduction of 4-nitrophenol over Ag nanoparticles immobilized on Stachys lavandulifolia extract-modified multi walled carbon nanotubes

Veisi, Hojat; Kazemi, Shahryar; Mohammadi, Pourya; Safarimehr, Parisa; Hemmati, Saba

doi:10.1016/j.poly.2018.10.014

Cited by 80 publications

(21 citation statements)

References 91 publications

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“…Since plants are found abundantly and do not need specific conditions and nutrient for growth, they are an appropriate option for green synthesis of nanoparticles . Green processes have recently been considered a significant branch of nanotechnology for the synthesis of nanoparticles . Synthesis of nanoparticles by biological methods is clean, nontoxic, and biocompatible, suggesting the synthesis of nanoparticles with a wide range of size, shape, composition, physiochemical, and antibacterial properties .…”

Section: Introductionmentioning

confidence: 99%

Biosynthesis of gold nanoparticles using Allium noeanum Reut. ex Regel leaves aqueous extract; characterization and analysis of their cytotoxicity, antioxidant, and antibacterial properties

Shahriari

Hemmati

Zangeneh

et al. 2019

Applied Organom Chemis

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Gold nanoparticles have unique and excellent medical and nonmedical properties and application compared with other metallic nanoparticles. Recently, they have been used for the prevention, control, and treatment of bacterial and fungal diseases. In the recent study, fresh and clean leaves of Allium noeanum Reut. ex Regel leaves have been used for the synthesis of gold nanoparticles. Also, we evaluated the cytotoxicity, antioxidant, and antibacterial properties of HAuCl 4 , A. noeanum, and the synthesized nanoparticles (Au NPs). These nanoparticles were analyzed by FT-IR, UV, XRD, EDS, FE-SEM, and TEM tests. FTIR results offered antioxidant compounds in the plant were the sources of reducing power, reducing gold ions to Au NPs. In TEM images revealed an average diameter of 10-30 nm. At the beginning of biological experiments, DPPH free radical scavenging test was carried out to examine the antioxidant property. Also, in the bacterial part of this study, the concentration of HAuCl 4 , A. noeanum, and AuNPs with minimum dilution and no turbidity was considered MIC. To determine MBC, 60 μL of MIC and three preceding chambers were cultured on Muller Hinton Agar. The minimum concentration with no bacterial growth was considered MBC. Au NPs revealed excellent antioxidant potential against DPPH, non-toxicity property against human umbilical vein endothelial cells, and antibacterial activities against Streptococcus pneumonia, Bacillus subtilis, Staphylococcus aureus, Staphylococcus saprophyticus, Salmonella typhimurium, Pseudomonas aeruginosa, Shigella flexneri, and Escherichia coli O157:H7. These findings show that the inclusion of A. noeanum extract improves the solubility of Au NPs, which led to a notable enhancement in the antioxidant and antibacterial effects.

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Section: Introductionmentioning

confidence: 99%

Biosynthesis of gold nanoparticles using Allium noeanum Reut. ex Regel leaves aqueous extract; characterization and analysis of their cytotoxicity, antioxidant, and antibacterial properties

Shahriari

Hemmati

Zangeneh

et al. 2019

Applied Organom Chemis

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“…In Iran, several species are applied as traditional therapeutic agents in various conditions, including S. acerosa [ 31 ], S. fruticulosa [ 32 ], S. byzantina (known in Farsi as “lamb’s ear” or “lamb’s tongue” or “sonbolehe noghrehi” or “zabanehe bare”) [ 33 , 34 , 35 ], S. inflata (local names; ′′poulk′′ or “Ghol-e-Argavan”) [ 31 , 36 , 37 ], S. lavandulifolia (known as “Chaaye Koohi”) [ 12 , 13 , 31 , 38 , 39 , 40 , 41 , 42 , 43 , 44 ], S. pilifera [ 31 , 45 ], S. schtschegleevii [ 32 , 34 , 46 ], S. sylvatica [ 47 ] and S. turcomanica [ 34 ]. Of considerable interest, S. sylvatica (common name “hedge woundwort”) is recommended for the treatment of women with polycystic ovary syndrome (PCOS) [ 47 ].…”

Section: Traditional Medicinal Uses Of Genus Stachysmentioning

confidence: 99%

Genus Stachys: A Review of Traditional Uses, Phytochemistry and Bioactivity

2020

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“…Therefore, the elimination of harmful chemical processes or at least the reduction of them has become popular within chemical research, and so green chemistry has found a special place among chemists. In fact, green chemistry is a term given to 12 principles, and following these principles makes a process and its reactions environmentally friendly and healthy performing, reduces the risk of toxic substances, lowers energy consumption, and enhances the efficiency up to a maximum …”

Section: Introductionmentioning

confidence: 99%

“…In fact, green chemistry is a term given to 12 principles, and following these principles makes a process and its reactions environmentally friendly and healthy performing, reduces the risk of toxic substances, lowers energy consumption, and enhances the efficiency up to a maximum. [11][12][13] Hydroxyapatite, one of the most important inorganic biomaterials, has extensive applications in drug delivery systems, [14] bone grafts, [15,16] catalysts [17] and adsorbents [18] because of its high specific surface area, low water solubility, availability, low cost and high stability.…”

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confidence: 99%

Synthesis and characterization of nanocrystalline hydroxyapatite and its catalytic behavior towards synthesis of 3,4‐disubstituted isoxazole‐5(4H)‐ones in water

Maleki

Chahkandi

Tayebee

et al. 2019

Applied Organom Chemis

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In the present work, the nanocrystalline particles of hydroxyapatite (HAp) using an easy alkoxide‐based sol–gel technique including triethyl phosphate [PO (OC2H5)3] and Ca (NO3)2·4H2O as P and Ca precursors have been synthesized. The sample characterization was performed by X‐ray diffraction, Fourier transform‐infrared analysis, scanning electron microscopy, thermal analysis (thermogravimetric analysis/differential thermal analysis), and elemental analysis of energy‐dispersive X‐ray analysis. It is interesting that single phase of HAp was obtained at a low firing temperature of 500°C. Modified Scherrer equation as the Williamson−Hall method was applied for the measurement of crystallite size distributions and micro‐strain of the sample. The determined crystallite size by complementary technique of transmission electron microscopy has good consistency with those obtained from the Scherrer formula. Moreover, we reported the one‐pot synthesis of 3,4‐disubstituted isoxazole‐5(4H)‐ones through the aqueous solution reaction of three components of ethyl acetoacetate, hydroxylamine hydrochloride and various aromatic aldehydes at room temperature. This protocol offers several advantages, including a simple work‐up procedure, very short reaction times (under 25 min), in accordance with the principles of green chemistry, recyclability, excellent yields (87–98%) and environmentally friendly.

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Catalytic reduction of 4-nitrophenol over Ag nanoparticles immobilized on Stachys lavandulifolia extract-modified multi walled carbon nanotubes

Cited by 80 publications

References 91 publications

Biosynthesis of gold nanoparticles using Allium noeanum Reut. ex Regel leaves aqueous extract; characterization and analysis of their cytotoxicity, antioxidant, and antibacterial properties

Biosynthesis of gold nanoparticles using Allium noeanum Reut. ex Regel leaves aqueous extract; characterization and analysis of their cytotoxicity, antioxidant, and antibacterial properties

Genus Stachys: A Review of Traditional Uses, Phytochemistry and Bioactivity

Synthesis and characterization of nanocrystalline hydroxyapatite and its catalytic behavior towards synthesis of 3,4‐disubstituted isoxazole‐5(4H)‐ones in water

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