Synthesis of silver nanoparticles utilizing various biological systems: mechanisms and applications—a review

Garg, Divyanshi; Sarkar, Aritri; Chand, Pooja; Bansal, Pulkita; Gola, Deepak; Sharma, Shivangi; Khantwal, Sukirti; Surabhi, .; Mehrotra, Rekha; Chauhan, Nitin; Bharti, Randhir K.

doi:10.1007/s40204-020-00135-2

Cited by 87 publications

(41 citation statements)

References 119 publications

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“…Biological synthesis of nanoparticles is widely preferred due to non-involvement of harmful toxic chemicals which otherwise make the resulting nanoparticles non-biocompatible and hazardous during therapeutic application. Biogenic routes of synthesis are rapid, efficient and economical as the metabolites in the extracts generally act as potential reducing as well as stabilizing agents ( Garg et al, 2020 ).…”

Section: Discussionmentioning

confidence: 99%

Antimicrobial Synergy of Silver-Platinum Nanohybrids With Antibiotics

et al. 2021

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Various bacterial pathogens are responsible for nosocomial infections resulting in critical pathophysiological conditions, mortality, and morbidity. Most of the bacterial infections are associated with biofilm formation, which is resistant to the available antimicrobial drugs. As a result, novel bactericidal agents need to be fabricated, which can effectively combat the biofilm-associated bacterial infections. Herein, for the first time we report the antimicrobial and antibiofilm properties of silver-platinum nanohybrids (AgPtNHs), silver nanoparticles (AgNPs), and platinum nanoparticles (PtNPs) against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus. The AgPtNHs were synthesized by a green route using Dioscorea bulbifera tuber extract at 100°C for 5 h. The AgPtNHs ranged in size from 20 to 80 nm, with an average of ∼59 nm. AgNPs, PtNPs, and AgPtNHs showed a zeta potential of −14.46, −1.09, and −11.39 mV, respectively. High antimicrobial activity was observed against P. aeruginosa and S. aureus and AgPtNHs exhibited potent antimicrobial synergy in combination with antibiotics such as streptomycin, rifampicin, chloramphenicol, novobiocin, and ampicillin up to variable degrees. Interestingly, AgPtNHs could inhibit bacterial biofilm formation significantly. Hence, co-administration of AgPtNHs and antibiotics may serve as a powerful strategy to treat bacterial infections.

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Section: Discussionmentioning

confidence: 99%

Antimicrobial Synergy of Silver-Platinum Nanohybrids With Antibiotics

et al. 2021

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“…TiO 2 synthesis is usually performed in small Morey type autoclaves, fitted with Teflon gaskets. The conditions selected for the synthesis of TiO 2 particles are: T ≤ 200 • C and pressure (p) < 100 bar [29,30].…”

Section: Hydrothermal/solvothermal Methodsmentioning

confidence: 99%

“…The hydrothermal method refers to a process of preparing materials in a closed pressure vessel. The precursors can be dissolved (in water), reacted and crystallized, this being done similarly to the traditional aqueous solution method [30]. Ultrafine TiO 2 powders can also be prepared by hydrothermal oxidation of H 2 O 2 starting from metallic Ti.…”

Section: Hydrothermal/solvothermal Methodsmentioning

confidence: 99%

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Silver-Deposited Nanoparticles on the Titanium Nanotubes Surface as a Promising Antibacterial Material into Implants

Coman

Mare

Tănase

et al. 2021

Metals

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The main disadvantage of the implants is the associated infections. Therefore, in the long term, the possibility of improving the antibacterial capacity of different types of implants (dental, orthopedic) is being researched. The severity of the problem lies in the increasing bacterial resistance and finding appropriate alternative treatments for infectious diseases, which is an important research field nowadays. The purpose of this review is to draw a parallel between different studies analyzing the antibacterial activity and mechanism of silver nanoparticles (NP Ag) deposited on the titanium nanotubes (NTT), as well as the analysis of the NP Ag toxicity. This review also provides an overview of the synthesis and characterization of TiO2-derived nanotubes (NT). Thus, the analysis aims to present the existing knowledge to better understand the NP Ag implants benefits and their antibacterial activity.

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“…Among them, temperature, pH and incubation time for the microbial culture are the paramount factors, as this green approach of synthesis is regulated by the enzymatic system for reduction of metal ions (NADH reductase), so biosynthesis depends upon optimum conditions. High temperature and pH completely inactivates the enzymes and halts their action, in turn, slows down the nanoparticles formation (Sundaram et al, 2012;Garg et al, 2020;Jubran et al, 2020). Besides enzymes, proteins, peptides, cofactors and organic molecules also contributes in the synthesis process as stabilizer, capping and reducing agents (Singh et al, 2016).…”

Section: Biosynthesis Of Iron Oxide Nanoparticles Using Bacteriamentioning

confidence: 99%

Green Synthesis: An Eco-friendly Route for the Synthesis of Iron Oxide Nanoparticles

Priya

Naveen

Kaur

et al. 2021

Front. Nanotechnol.

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Green approach has received major attention for the synthesis of metal oxide nanoparticles. One such metal oxide nanoparticles are iron oxide nanoparticles (IONPs). IONPs have fetched a great deal of interest in recent era because of their magnetic nature, as they can be easily recovered from the reaction mixture by applying an external magnetic field. Although, a variety of chemical and physical methods of synthesis are known, green synthesis is safer, sustainable and biologically acceptable. Plants and microbes are the main biological materials used for the green synthesis. In present review, the synthesis of IONPs by using plants, bacteria, fungi and algae have been highlighted. IONPs produced by plants, fungi, bacteria and algae usually falls in 1–100 nm range and are of distinct shapes like cubic, tetragonal crystalline, spherical, cylindrical, elliptical, octahedral, orthorhombic, hexagonal rods, nanosphere and quasi spherical. Furthermore, these biomaterials play role of reducing, capping, stabilizing and fabricating agents in green synthesis of nanoparticles. The review put forward a comprehensive report of various routes used for synthesizing IONP, biologically. Intuition into the procedures for synthesis of nanoparticles will help to nourish our learning in the area of nanotechnology.

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Synthesis of silver nanoparticles utilizing various biological systems: mechanisms and applications—a review

Cited by 87 publications

References 119 publications

Antimicrobial Synergy of Silver-Platinum Nanohybrids With Antibiotics

Antimicrobial Synergy of Silver-Platinum Nanohybrids With Antibiotics

Silver-Deposited Nanoparticles on the Titanium Nanotubes Surface as a Promising Antibacterial Material into Implants

Green Synthesis: An Eco-friendly Route for the Synthesis of Iron Oxide Nanoparticles

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