Green synthesis and characterizations of gold nanoparticles using Thyme and survey cytotoxic effect, antibacterial and antioxidant potential

Hamelian, Mona; Varmira, Kambiz; Veisi, Hojat

doi:10.1016/j.jphotobiol.2018.05.016

Cited by 100 publications

(36 citation statements)

References 24 publications

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“…Antioxidant activity plays an important role in the protection of our body from harm of free radical. 43,44 Fig. 7 showed that when the concentration of Pd 150 -LNT NPs increased from 0.27 to 1.33 mg mL À1 , the antioxidant activity increased from 20% to 60%, indicating effective free radical inhibition by Pd 150 -LNT NPs.…”

Section: Dpph Free Radical Scavenging Assaymentioning

confidence: 98%

Green synthesis of palladium nanoparticles using lentinan for catalytic activity and biological applications

et al. 2019

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Section: Dpph Free Radical Scavenging Assaymentioning

confidence: 98%

Green synthesis of palladium nanoparticles using lentinan for catalytic activity and biological applications

et al. 2019

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“…-CH 2 functional groups were also observed, similar to the others. The band at 1710 cm −1 corresponds to the C=O bond, the band at 1588 cm −1 corresponds to N-H bending, at 1390 cm −1 C-C stretching was observed from the phenyl groups, and the band at 1260 cm −1 belongs to C-O stretching and, at around 1090 cm −1, to the C-N stretch [28,29]. After encapsulation of the thyme into chitosan NPs and further deposition on the PE foil, the present bands from CS and THY together imply the successful functionalization onto previously activated PE foil.…”

Section: Atr-ftir Spectroscopymentioning

confidence: 99%

Physicochemical Characterization of Packaging Foils Coated by Chitosan and Polyphenols Colloidal Formulations

Zemljič

Plohl

Vesel

et al. 2020

IJMS

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In this research, antimicrobial polysaccharide chitosan was used as a surface coating for packaging material. The aim of our research was to establish an additive formulation of chitosan and antioxidative plant extracts as dispersion of nanoparticles. Chitosan nanoparticles with embedded thyme, rosemary and cinnamon extracts were synthesized, and characterized for this purpose. Two representative, commercially used foils, polypropylene (PP) and polyethylene (PE), previously activated by UV/ozone to improve coating adhesion, were functionalized using chitosan-extracts nanoparticle dispersions. The foils were coated by two layers. A solution of macromolecular chitosan was applied onto foils as a first layer, followed by the deposition of various extracts embedded into chitosan nanoparticles that were attached as an upper layer. Since active packaging must assure bioactive efficiency at the interface with food, it is extremely important to understand the surface characteristics and phenomena of functionalized foils. The physico-chemical analyses of functionalized foils were thus comprised of surface elemental composition, surface charge, wettability, as well as surface morphology. It has been shown that coatings were applied successfully with an elemental composition, surface charge and morphology that should enable coating stability, homogeneity and consequently provide an active concept of the packaging surface in contact with food. Moreover, the wettability of foils was improved in order to minimize the anti-fogging behavior.

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“…Development in nanotechnology, because of their effect on human health is not so useful, so green chemistry has to be incorporated into nanotechnology to make it noteworthy . To reduce of concerns about toxicity of nanoparticles in medical and technological applications, green synthesis of metal nanoparticles, specially by different part of plants including leave, root, seed and fruit extract as reducing and capping agent is focused . Striking antibacterial and antioxidant properties of silver nanoparticles have made it one of most attractive metal .…”

Section: Introductionmentioning

confidence: 99%

“…[3][4][5] To reduce of concerns about toxicity of nanoparticles in medical and technological applications, green synthesis of metal nanoparticles, specially by different part of plants including leave, root, seed and fruit extract as reducing and capping agent is focused. [6][7][8][9] Striking antibacterial and antioxidant properties of silver nanoparticles have made it one of most attractive metal. [10,11] Recently biosynthesis of Silver nanoparticles has been studied with various plants part as olive leaf, [12] mulberry leaves, [13] leaf extract of Indian plants, [14] Thymbra spicata s, [15] Stachys lavandulifolia, [16] green tea, [17] Sesamum indicum seed, [18] banana peel, [19] oak fruit bark [20] and Eucalyptus chapmaniana.…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of silver nanoparticles using Thymus kotschyanus extract and evaluation of their antioxidant, antibacterial and cytotoxic effects

Hamelian

Zangeneh

Amisama

et al. 2018

Applied Organom Chemis

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202

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Present study used ecofriendly, cost efficient and easy method for synthesis of silver nanoparticles (Ag NPs) at the room temperature by Thymus Kotschyanus extract as reducing and capping agent. Various analytical technique including UV–Vis absorption spectroscopy determined presence of Ag NPs in the solution, the functional groups of Thymus Kotschyanus extract in the reduction and capping process of Ag NPs are approved by FT‐IR, crystallinity with the fcc plane approved from the X‐ray diffraction (XRD) pattern, energy dispersive spectroscopy (EDS) determined existence of elements in the sample, surface morphology, diverse shapes and size of present Ag NPs were showed by using scanning electron microscopy (SEM), atomic force microscopy (AFM) and high resolution transmission electron microscopy (HRTEM). Beginning and end destroy temperature of present silver nanoparticles were determined by thermal gravimetric spectroscopy (TGA). In addition, antibacterial, antioxidant and cytotoxicity properties of Ag NPs were studied. Agar disk and agar well diffusion are the methods to determined antibacterial properties of synthesized Ag NPs. Also MIC (Minimum Inhibitory Concentration) and MBC (Minimum Bactericidal Concentration) were recognized by macro broth dilution assay. DPPH free radical scavenging assay was used for antioxidant property and compare to butylated hydroxytoluene (BHT) as standard antioxidant that showed high antioxidant activity more than BHT. Synthesized Ag NPs have great cell viability in a dose depended manner and demonstrate that this method for synthesis silver nanoparticles provided nontoxic. The average diameter of synthesized Ag NPs was about 50–60 nm.

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Green synthesis and characterizations of gold nanoparticles using Thyme and survey cytotoxic effect, antibacterial and antioxidant potential

Cited by 100 publications

References 24 publications

Green synthesis of palladium nanoparticles using lentinan for catalytic activity and biological applications

Green synthesis of palladium nanoparticles using lentinan for catalytic activity and biological applications

Physicochemical Characterization of Packaging Foils Coated by Chitosan and Polyphenols Colloidal Formulations

Green synthesis of silver nanoparticles using Thymus kotschyanus extract and evaluation of their antioxidant, antibacterial and cytotoxic effects

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