Synthesis of silver nanoparticles in montmorillonite and their antibacterial behavior

Shameli, Kamyar; Ahmad, Mansor Bin; Zargar, Mohsen; Yunus, Wan Md Zin Wan; Rustaiyan, Abdolhossein; Ibrahim, Nor Azowa

doi:10.2147/ijn.s17112

Cited by 122 publications

(62 citation statements)

References 45 publications

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“…19,30,31 To expel the added instrumental broadening, the FWHM was corrected using the FWHM from a large-grained Si sample.…”

Section: Xrd Measurementmentioning

confidence: 99%

Chrysopogon zizanioides aqueous extract mediated synthesis characterization of crystalline silver and gold nanoparticles for biomedical applications

Arunachalam¹,

Annamalai²

2013

IJN

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Abstract:The exploitation of various plant materials for the biosynthesis of nanoparticles is considered a green technology as it does not involve any harmful chemicals. The aim of this study was to develop a simple biological method for the synthesis of silver and gold nanoparticles using Chrysopogon zizanioides. To exploit various plant materials for the biosynthesis of nanoparticles was considered a green technology. An aqueous leaf extract of C. zizanioides was used to synthesize silver and gold nanoparticles by the bioreduction of silver nitrate (AgNO 3 ) and chloroauric acid (HAuCl 4 ) respectively. Water-soluble organics present in the plant materials were mainly responsible for reducing silver or gold ions to nanosized Ag or Au particles. The synthesized silver and gold nanoparticles were characterized by ultraviolet (UV)-visible spectroscopy, scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDAX), Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD) analysis. The kinetics decline reactions of aqueous silver/gold ion with the C. zizanioides crude extract were determined by UV-visible spectroscopy. SEM analysis showed that aqueous gold ions, when exposed to the extract were reduced and resulted in the biosynthesis of gold nanoparticles in the size range 20-50 nm. This eco-friendly approach for the synthesis of nanoparticles is simple, can be scaled up for large-scale production with powerful bioactivity as demonstrated by the synthesized silver nanoparticles. The synthesized nanoparticles can have clinical use as antibacterial, antioxidant, as well as cytotoxic agents and can be used for biomedical applications.

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“…19,30,31 To expel the added instrumental broadening, the FWHM was corrected using the FWHM from a large-grained Si sample.…”

Section: Xrd Measurementmentioning

confidence: 99%

Chrysopogon zizanioides aqueous extract mediated synthesis characterization of crystalline silver and gold nanoparticles for biomedical applications

Arunachalam¹,

Annamalai²

2013

IJN

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“…The smaller AgNPs exhibited significantly higher antibacterial activity. 229 More recently, cream formulations of AgNPs and AgNO 3 were prepared, and their antibacterial activity was evaluated on human pathogens (S. aureus, Proteus vulgaris, E. coli, P. aeruginosa, and Candida albicans) and a plant pathogen (Agrobacterium tumefaciens). The antimicrobial studies concluded that AgNPs have 200 times more inhibitory effect compared to AgNO 3 .…”

mentioning

confidence: 99%

Nanosilver: new ageless and versatile biomedical therapeutic scaffold

Khan¹,

Saleh²,

Wahab³

et al. 2018

IJN

155

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Silver nanotechnology has received tremendous attention in recent years, owing to its wide range of applications in various fields and its intrinsic therapeutic properties. In this review, an attempt is made to critically evaluate the chemical, physical, and biological synthesis of silver nanoparticles (AgNPs) as well as their efficacy in the field of theranostics including microbiology and parasitology. Moreover, an outlook is also provided regarding the performance of AgNPs against different biological systems such as bacteria, fungi, viruses, and parasites (leishmanial and malarial parasites) in curing certain fatal human diseases, with a special focus on cancer. The mechanism of action of AgNPs in different biological systems still remains enigmatic. Here, due to limited available literature, we only focused on AgNPs mechanism in biological systems including human (wound healing and apoptosis), bacteria, and viruses which may open new windows for future research to ensure the versatile application of AgNPs in cosmetics, electronics, and medical fields.

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“…which have been studied against different Gram-negative and Gram-positive bacteria (Alrousan et al, 2009;Chwalibog et al, 2010;Nangmenyi et al, 2009;Neal, 2008;Negi et al, 2011b;Shameli et al, 2011) as well as multidrug-resistant bacteria (Huh and Kwon, 2011). However, it is reported that the antibacterial effect of nanoparticles was found to be more pronounced on Gram-negative bacterial strains in virtue of their permeable cell membrane (Sinha et al, 2011).…”

mentioning

confidence: 99%

In vitro assessment of Ag2O nanoparticles toxicity against Gram-positive and Gram-negative bacteria

Negi¹,

Saravanan²,

Agarwal³

et al. 2013

J. Gen. Appl. Microbiol.

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Synthesis of silver nanoparticles in montmorillonite and their antibacterial behavior

Cited by 122 publications

References 45 publications

Chrysopogon zizanioides aqueous extract mediated synthesis characterization of crystalline silver and gold nanoparticles for biomedical applications

Chrysopogon zizanioides aqueous extract mediated synthesis characterization of crystalline silver and gold nanoparticles for biomedical applications

Nanosilver: new ageless and versatile biomedical therapeutic scaffold

In vitro assessment of Ag2O nanoparticles toxicity against Gram-positive and Gram-negative bacteria

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