Biosynthesis of antimicrobial silver nanoparticles by the endophytic fungus Aspergillus clavatus

Verma, Vijay C.; Kharwar, Ravindra N.; Gange, Alan C.

doi:10.2217/nnm.09.77

Cited by 344 publications

(139 citation statements)

References 33 publications

Supporting

Mentioning

128

Contrasting

Unclassified

Order By: Relevance

“…These nanosize particles have also established in vivo encouraging effect as therapeutic agents [3,4]. The studies conducted in past few year, Metal-NPs have been improved for their antimicrobial activity and may locally destroy pathogenic organisms, without being toxic to the surrounding tissue [5][6][7][8]. Previously, there have been numerous reports on the green synthesis of metal nanoparticles [9][10][11] and AgNPs have their own importance among all.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization and Antimicrobial Activity of Abelia grandiflora Assisted AgNPs

Sharma¹,

Jasuja²,

Rajgovind³

et al. 2014

Microb Biochem Technol

View full text Add to dashboard Cite

In past few years, wide applicability of silver nanoparticles (AgNPs) in various field attract for an approach of rapid, cost effective and eco-friendly synthesis of AgNPs that is expanding research toward biological methods. The biosynthesised AgNPs were confirmed visually by appearance of dark brown color formation in mixture and silver surface plasmon resonance band observed at 413 nm by using UV-Visible Spectroscopy A. grandiflora may be used for the green synthesis of ultra-fine nanoparticles of silver for their antimicrobial activities.

show abstract

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization and Antimicrobial Activity of Abelia grandiflora Assisted AgNPs

Sharma¹,

Jasuja²,

Rajgovind³

et al. 2014

Microb Biochem Technol

View full text Add to dashboard Cite

show abstract

“…Nirjanta Devi et al, [17] also revealed SPR band for AgNps in the range of 390-440nm by endophytic fungus, Penicillium sp isolated from Centella asiatica plant. Verma et al, [21] also reported SPR peak at 415 nm by endophytic fungus Aspergillus clavatus isolated from the surface sterilized stem tissues of Azadirchta indica. While Sophiya Devi et al, [22] revealed SPR sharp peak at 415nm and 403nm by endophytic fungi Alternaria solani and Penicillium funiculosum respectively isolated from the ethno medicinal plant Gloriosa superb L. All these reports suggest that the peaks shown by almost all the endophytic fungi as per the literature lie in the range of 390-440 nm.…”

Section: 1 Uv-visible Spectroscopymentioning

confidence: 97%

“…Afreen et al, [5] also reported synthesis of AgNps by Rhizopus stolonifer and also reported the increase in colour intensity of AgNps was due to increased number of nanoparticles formed in the reaction mixture. Verma et al, [21] reported biosynthesis of AgNps by Aspergillus clavatus an endophytic fungus isolated from sterilized stem tissues of Azadirachta indica. Sophiya Devi et al, [22] also used endophytic fungi Alternaria solani GS1 and Penicillium funiculosum GS2 isolated from the ethno medicinal plant Gloriosa superb L for extracellular biosynthesis of AgNps.…”

Section: Extracellular Synthesis Of Silver Nanoparticlesmentioning

confidence: 99%

A Study on Extracellular Synthesis of Silver Nanoparticles from Endophytic Fungi, Isolated from Ethanomedicinal Plants Curcuma longa and Catharanthus roseus

Singh

Rathod

Singh

et al. 2016

ILNS

View full text Add to dashboard Cite

Abstract. Biological method is considered as eco-friendly and reliable process for the synthesis of silver nanoparticles (AgNps) in the field of nanotechnology due to its tremendous applications in various fields. In this study we have isolated a total of twelve endophytic fungi from leaves of Curcuma longa (turmeric) and Catharanthus roseus out of which six endophytic fungi showed their ability to synthesized AgNps from silver nitrate (AgNO 3) solution which splits into a positive silver ion (Ag + ) and a negative nitrate ion (NO 3 -) in order to turn the silver ions into solid silver (Agº). Of the six positive endophytic fungi VRD2 showed good and encouraging results and was identified as Penicillium spinulosum VRD2. UV-Visible Spectroscopy confirms the AgNps showing maximum peak at 425nm implying the bioreduction of AgNO 3 . Transmission Electron Microscopy (TEM) revealed the particle are spherical and well dispersed without agglomeration size ranging from 25-30nm.

show abstract

“…Fungal mediated synthesis of SNPs has been done by a number of researchers so far. Fusarium oxysporum [7], Aspergillus fumigates [9], Fusarium semitectum [10], Aspergillus niger [11], Cladosporium cladosporioides [12], Penicillium brevicompactum [13], and Aspergillus clavatus [14] have been previously described. An extensive intracellular and extracellular study has been conducted on the biosynthesis of SNPs by Aspergillus species.…”

Section: Introductionmentioning

confidence: 99%

Biosynthesis, characterization and antibacterial activity of silver nanoparticles from Aspergillus awamori

Vishwanatha¹,

Keshavamurthy²,

Mahanthappa³

et al. 2018

J App Biol Biotech

View full text Add to dashboard Cite

Microbial nanoparticles (NPs) have become the subject of immense research interest in the recent past due to their wide range of applications as effective antimicrobial agents, drug delivery systems, gene delivery, diagnostic agents in imaging diseases, and consumer products among others. The present study emphasizes on the synthesis of metallic silver NPs (SNPs) from cell-free supernatant of Aspergillus awamori strain KGSR12. The phase purity, composition, size, and shape of the as-synthesized NPs were characterized using various analytic spectroscopic techniques including X-ray diffraction, scanning electron microscope (SEM), ultraviolet-visible, and Fourier transform-infrared spectroscopy. Based on the SEM analysis, the particles are uniformly distributed, and size is estimated to be 40-50 nm. Antibacterial activity of NPs against significant human pathogens was conferred with well diffusion assay, and it reveals the strains of Pseudomonas aeruginosa, Klebsiella pneumoniae, and Bacillus cereus are susceptible to synthesized SNPs that confirm the antibacterial activity of SNPs. Thus, the study concludes with the biogenic and eco-friendly route for synthesizing SNPs with antibacterial activity against clinically important pathogens and attributes growing interest on fungi as an emerging source for the synthesis of NPs.

show abstract

Biosynthesis of antimicrobial silver nanoparticles by the endophytic fungus Aspergillus clavatus

Cited by 344 publications

References 33 publications

Synthesis, Characterization and Antimicrobial Activity of Abelia grandiflora Assisted AgNPs

Synthesis, Characterization and Antimicrobial Activity of Abelia grandiflora Assisted AgNPs

A Study on Extracellular Synthesis of Silver Nanoparticles from Endophytic Fungi, Isolated from Ethanomedicinal Plants <i>Curcuma longa</i> and <i>Catharanthus roseus</i>

Biosynthesis, characterization and antibacterial activity of silver nanoparticles from Aspergillus awamori

Contact Info

Product

Resources

About