Green synthesis of silver nanoparticles using plant extracts and their antimicrobial activities: a review of recent literature

Vanlalveni, Chhangte; Lallianrawna, Samuel; Biswas, Ayushi; Selvaraj, Manickam; Changmai, Bishwajit; Rokhum, Samuel Lalthazuala

doi:10.1039/d0ra09941d

Cited by 422 publications

(231 citation statements)

References 339 publications

(479 reference statements)

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“…The particles exhibit high conducting electron density and the appearance of surface plasmon resonances [14]. As a result, they are applied in different fields such as antibacterial, medicine, photonics, sensor and catalysis [15][16][17]. In general, hazard chemical or non-biodegradable agents were used for reducing Ag ion into AgNPs.…”

Section: Introductionmentioning

confidence: 99%

High-performance resistive humidity sensor based on Ag nanoparticles decorated with graphene quantum dots

et al. 2021

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In this work, we present a low-cost, fast and simple fabrication of resistive-type humidity sensors based on the graphene quantum dots (GQDs) and silver nanoparticles (AgNPs) nanocomposites. The GQDs and AgNPs were synthesized by hydrothermal method and green reducing agent route, respectively. UV–Vis spectrophotometer, X-ray photoelectron spectroscopy and field-emission transmission electron microscopy were used to characterize quality, chemical bonding states and morphology of the nanocomposite materials and confirm the successful formation of core/shell-like AgNPs/GQDs structure. According to sensing humidity results, the ratio of GQDs/AgNPs 1 : 1 nanocomposite exhibits the best humidity response of 98.14% with exponential relation in the humidity range of 25–95% relative humidity at room temperature as well as faster response/recovery times than commercial one at the same condition. The sensing mechanism of the high-performance GQDs/AgNPs humidity sensor is proposed via Schottky junction formation and intrinsic synergistic effects of GQDs and AgNPs.

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Section: Introductionmentioning

confidence: 99%

High-performance resistive humidity sensor based on Ag nanoparticles decorated with graphene quantum dots

et al. 2021

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“…Different biological functional groups in the structure of plants: alcohols, aldehydes, amines, carboxyl, ketones, hydroxyl, are used to convert Ag + ions into zerovalence silver nanoparticles. In general, spherical NPs have only a single SPR band in their uv absorbance spectrum [29].…”

Section: Resultsmentioning

confidence: 99%

Antimicrobial Activities of Coriander Seed Essential Oil and Silver Nanoparticles

Saygı

Kaçmaz

Gül

2021

Preprint

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Bacterial infections are one of the most serious health problems all over the world, which cause need for the discovery of new drug. Since antibiotic resistance is a major threat to both humans and the environment, there is a need for studies on the antimicrobial properties of different forms of traditionally used plants. Herein, the seeds of coriander were used to isolate essential oil (EO) and to synthesise silver nanoparticles (C-AgNPs). The major oil constituents were characterized by GC-MS as Linalool (79.12%), Camphor (6.16%), γ-Terpinene (2.82%) and α-Pinene (2.67%). The synthesized AgNPs were characterized by UV-Visible spectrophotometry, Scanning Electron Microscopy (SEM), Energy Dispersive X-ray (EDX), X-ray difraction (XRD) and Fourier Tranmission Infrared (FTIR). The surface plasmon resonance (SPR) of C-AgNPs at 437 nm was recorded on the UV-Vis spectrometer. The spherical and homogenous of AgNPs was presented in SEM images. EDX showed elemental distribution and confirmed AgNPs. A characteristic intense peak was at 3.0 keV. The antibacterial activities of the essential oil and AgNPs form of coriander seed against Staphylococcus aureus ATCC 29213 and Escherichia coli ATCC 25922 bacteria were investigated by broth microdilution test. AgNPs and essential oil of coriander can be expected to provide future opportunities in nanomedicine and materials science. AgNPs can be displayed synergistic antimicrobial effect when used in combination with essential oil.

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“…Owing to their broad application in a variety of fields, including medicine, pharmacology, microbiology, cell biology, parasitology, chemistry, food technology, water purification, and house appliances, AgNPs are some of the most intensively studied among metal and metal oxide NPs [ 43 , 79 , 80 , 81 ]. They can be obtained through a wide range of methods, including the sol–gel method, hydrothermal method, thermal decomposition, chemical vapor deposition, microwave-assisted combustion, and biogenic synthesis methods.…”

Section: Inorganic Nanoparticles With Antimicrobial Propertiesmentioning

confidence: 99%

“…They can be obtained through a wide range of methods, including the sol–gel method, hydrothermal method, thermal decomposition, chemical vapor deposition, microwave-assisted combustion, and biogenic synthesis methods. Their production involves reducing Ag + to Ag 0 using various biomolecules as electron donors, i.e., aldehydes, ketones, carboxylic acids, flavonoids, tannins, phenols, and proteins [ 79 ].…”

Section: Inorganic Nanoparticles With Antimicrobial Propertiesmentioning

confidence: 99%

“…The morphology of AgNPs in terms of size and shape is the main factor that affects the physico-chemical properties and the Ag + release kinetics [ 79 , 83 ]. Thereby, studies have demonstrated higher antimicrobial bioactivity related to higher amounts of apoptotic agents, necrotic factors, and ROS for NPs with reduced sizes and larger surface areas [ 73 , 84 ].…”

Section: Inorganic Nanoparticles With Antimicrobial Propertiesmentioning

confidence: 99%

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Inorganic Nanoparticles and Composite Films for Antimicrobial Therapies

Spirescu

Chircov

Grumezescu

et al. 2021

IJMS

106

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The development of drug-resistant microorganisms has become a critical issue for modern medicine and drug discovery and development with severe socio-economic and ecological implications. Since standard and conventional treatment options are generally inefficient, leading to infection persistence and spreading, novel strategies are fundamentally necessary in order to avoid serious global health problems. In this regard, both metal and metal oxide nanoparticles (NPs) demonstrated increased effectiveness as nanobiocides due to intrinsic antimicrobial properties and as nanocarriers for antimicrobial drugs. Among them, gold, silver, copper, zinc oxide, titanium oxide, magnesium oxide, and iron oxide NPs are the most preferred, owing to their proven antimicrobial mechanisms and bio/cytocompatibility. Furthermore, inorganic NPs can be incorporated or attached to organic/inorganic films, thus broadening their application within implant or catheter coatings and wound dressings. In this context, this paper aims to provide an up-to-date overview of the most recent studies investigating inorganic NPs and their integration into composite films designed for antimicrobial therapies.

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Green synthesis of silver nanoparticles using plant extracts and their antimicrobial activities: a review of recent literature

Abstract: Herein, we have reviewed new findings in the research domain of the green synthesis of silver nanoparticles using different plant extracts and their potential applications as antimicrobial agents covering the literature since 2015.

Cited by 422 publications

References 339 publications

High-performance resistive humidity sensor based on Ag nanoparticles decorated with graphene quantum dots

High-performance resistive humidity sensor based on Ag nanoparticles decorated with graphene quantum dots

Antimicrobial Activities of Coriander Seed Essential Oil and Silver Nanoparticles

Inorganic Nanoparticles and Composite Films for Antimicrobial Therapies

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