Catalytic and antibacterial evaluation of silver nanoparticles synthesized by a green approach

López-Miranda, J. Luis; Gonzalez, Maria A.; Mares-Briones, F.; Cervantes-Chávez, José Antonio; Esparza, Rodrigo; Rosas, G.; Pérez, R.

doi:10.1007/s11164-018-3568-9

Cited by 7 publications

(4 citation statements)

References 38 publications

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“…There are several reports on the synthesis of different Ag‐based nanocatalysts using various plant extracts and their catalytic application in the reduction of nitro compounds and degradation of organic dyes . Some works involving the catalytic activity of biosynthesized Ag nanocatalysts using various plant extracts in nitroarene reduction are summarized in Table .…”

Section: Reduction/degradation Of Nitro Compounds and Organic Dyesmentioning

confidence: 99%

Recent Developments in the Plant‐Mediated Green Synthesis of Ag‐Based Nanoparticles for Environmental and Catalytic Applications

Nasrollahzadeh

Yek

Motahharifar

et al. 2019

The Chemical Record

146

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Among different metallic nanoparticles, sliver nanoparticles (Ag NPs) are one of the most essential and fascinating nanomaterials. Importantly, among the metal based nanoparticles, Ag NPs play a key role in various fields such as biomedicine, biosensors, catalysis, pharmaceuticals, nanoscience and nanotechnology, particularly in nanomedicine. A main concern about the chemical synthesis of Ag NPs is the production of hazardous chemicals and toxic wastes. To overcome this problem, many research studies have been carried out on the green synthesis of Ag NPs using green sources such as plant extracts, microorganisms and some biopolymers without formation of hazardous wastes. Among green sources, plants could be remarkably valuable to exploring the biosynthesis of Ag NPs. In this review, the green synthesis of Ag‐based nanocatalysts such as Ag NPs, AgPd NPs, Au−Ag NPs, Ag/AgPd NPs, Ag/Cu NPs, Ag@AgCl NPs, Au−Ag@AgCl nanocomposite, Ag−Cr‐AC nanocomposite and Ag NPs immobilized on various supports such as Natrolite zeolite, bone, ZnO, seashell, hazelnut shell, almond shell, SnO2, perlite, ZrO2, TiO2, α‐Al2O3, CeO2, reduced graphene oxide (rGO), h‐Fe2O3@SiO2, and Fe3O4 using numerous plant extracts as reducing and stabilizing agents in the absence of hazardous surfactant and capping agents has been focused. This work describes the state of the art and future challenges in the biosynthesis of Ag‐based nanocatalysts. The fact about the application of living plants in metal nanoparticle (MNPs) industry is that it is a more economical and efficient biosynthesis biosynthetic procedure. In addition, the catalytic activities of the synthesized, Ag‐based recyclable nanocatalysts using various plant extracts in several chemical reactions such as oxidation, reduction, coupling, cycloaddition, cyanation, epoxidation, hydration, degradation and hydrogenation reactions have bben extensively discussed.

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Section: Reduction/degradation Of Nitro Compounds and Organic Dyesmentioning

confidence: 99%

Recent Developments in the Plant‐Mediated Green Synthesis of Ag‐Based Nanoparticles for Environmental and Catalytic Applications

Nasrollahzadeh

Yek

Motahharifar

et al. 2019

The Chemical Record

146

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“…04-0783 in the JCPDS database. Multiple studies have documented comparable findings [16,28,32]. The broadening of Bragg's peaks caused by particle/crystallite size and lattice strains indicates the formation of AgNPs, as nanoparticles cause a degree of disorder in the crystalline structure [33,34].…”

Section: Xrd Analysismentioning

confidence: 84%

“…In 2018, Lopez-Miranda et al biosynthesised AgNPs using Salvia microphylla Kunth leaves as a reducing agent. The UV-Vis spectrum demonstrated that silver nanoparticles display a distinctive surface plasmon resonance at 427 nm while the density of the synthesised AgNPs increases with increasing Salvia microphylla Kunth leaves [16]. In the same year, Bastos-Arrieta et al utilised AgNPs by Grape Stalk Waste Extract.…”

Section: Introductionmentioning

confidence: 99%

Microwave-assisted green synthesis of silver nanoparticles using turnip root (Brassica rapa subsp. Rapa) extract and their antibacterial efficacy

Alazzawi,

Al-Tamimi,

S Abed

2024

Phys. Scr.

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Biosynthesised silver nanoparticles (AgNPs), especially those synthesised by plant extracts, are extensively utilised in the fields of pharmacy and medicine due to their ability to exhibit a wide range of biological functions. The current study is focused on the green synthesis of silver nanoparticles from various concentrated silver nitrate solutions using turnip root extract as a reducing and stabilising agent and to assess the in vitro antibacterial efficacy of these AgNPs. For the study, we employed microwave-assisted reduction to examine the impact of microwave energy on the resulting AgNPs in comparison to the conventional heating method. X-ray diffraction analysis revealed the crystalline nature of the as-prepared AgNPs, while field emission-scanning electron microscopy (FE-SEM) showed the majority of spherical-shaped AgNPs had an average grain size of 47.5 nm. Energy-dispersive X-ray spectroscopy (EDX) indicates the high weight percentage of the produced AgNPs than for extract residue, especially for the AgNPs that are prepared with microwave assistance. Fourier transform infrared spectroscopy (FTIR) was used to reveal the functional groups that are related to many phytochemical compounds, such as alkaloids, flavonoids, and terpenoids, which act as reducing and stabilizing agents. High zeta potential measures (-22.77 and -38.83 mv) approved the high stability of the synthesised AgNPs as higher zeta potentials typically correlate with greater stability. The antibacterial activity behaviour of the produced NPs against gram-positive (Staphylococcus aureus) and gram-negative (Escherichia coli) bacteria was significantly acceptable for both heating techniques, as observed from the measured inhibition zone.

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“…[19], Salvia leucantha Cav. [20], Salvia microphylla Kunth [21], Salvia limbata C.A. Mey [3,22], Salvia hispanica L. [1], Salvia spinosa [2], Salvia sclarea [23], and Salvia miltiorrhiza Bunge [24] had the capability of phytosynthesize AgNPs.…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of silver nanoparticles using Salvia fruticosa Mill. extract and the effect of synthesis parameters on their formation, antioxidant, and electro-catalytic activity

ERKAKAN

DİKER

Önal

et al. 2022

Hacettepe Journal of Biology and Chemistry

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Among green synthesis methods, which are an eco-friendly, non-toxic, simple, and safe approach for the synthesis of silver nanoparticles (AgNPs), using plant extract is the most efficient method. Salvia fruticosa Mill. which was not used formerly was selected for this research. By changing the synthesis parameters (the amount of extract, extract concentration, and silver ion concentration in precursors), their effects on the formation and structure of nanoparticles were investigated by UV-visible spectroscopy, transmission electron microscopy and Fourier transform infrared spectroscopy techniques. The antioxidant activity of extracts and AgNPs was evaluated by performing DPPH assay. It is observed that the phytosynthesized nanoparticles also possess antioxidant potentials. Finally, AgNPs were used as modifiers for carbon paste electrode (CPE) and their effect on charge transfer resistance and the ascorbic acid signal was investigated by using electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and square wave voltammetry (SWV). E1-1/CPE showed good electro-catalytic oxidation of ascorbic acid and can be utilized for the development of the new sensors. According to results, in the process of green synthesis of AgNPs, synthesis parameters are vital as they change not only the size and size distribution of the AgNPs but also their antioxidant activity and electrochemical properties.

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Catalytic and antibacterial evaluation of silver nanoparticles synthesized by a green approach

Cited by 7 publications

References 38 publications

Recent Developments in the Plant‐Mediated Green Synthesis of Ag‐Based Nanoparticles for Environmental and Catalytic Applications

Recent Developments in the Plant‐Mediated Green Synthesis of Ag‐Based Nanoparticles for Environmental and Catalytic Applications

Microwave-assisted green synthesis of silver nanoparticles using turnip root (Brassica rapa subsp. Rapa) extract and their antibacterial efficacy

Green synthesis of silver nanoparticles using Salvia fruticosa Mill. extract and the effect of synthesis parameters on their formation, antioxidant, and electro-catalytic activity

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