Green synthesis and characterization of silver nanoparticles using Boerhaavia diffusa plant extract and their anti bacterial activity

Kumar, Praveen; Pammi, S.V.N.; Kollu, Pratap; Satyanarayana, Kandregula Veera Venkata; Shameem, U.

doi:10.1016/j.indcrop.2013.10.050

Cited by 339 publications

(59 citation statements)

References 17 publications

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“…The lattice parameter of AgNPs was found to be a =4.02 Å, which is comparable to the earlier reported values for AgNPs . The crystallite size calculated by Scherrer's formula at the major peak (2θ value 38°) was found to be 22 nm which is closer to the previous report for AgNPs synthesized using Boerhaavia diffusa plant .…”

Section: Resultssupporting

confidence: 86%

A biosynthesis route to nearly spherical AgNPs using chayote fruit extract

Chelli

Bag

Golder

2016

Env Prog and Sustain Energy

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Silver nanoparticles (AgNPs) were biosynthesized using the aqueous extract of Chayote fruit that served as both reducing and capping agents. The growth of AgNPs mostly occurred during the nucleation, and afterward, the natural capping agents inhibited AgNPs destabilization. The particles were of bi‐crystalline in nature with the predominant face‐centered cubic crystal of AgNPs with more than 99% yield within 24 h of reaction. The hydrodynamic diameter of AgNPs was around 1.6 times greater than the dry particles from TEM images. AgNPs were tested for the inactivation of Bacillus subtilis and Escherichia coli bacteria using the disc diffusion method. Furthermore, AgNPs were found to be highly effective against pathogenic fungi Aspergillus thermomutans. The free radical character of AgNPs caused the microbial inactivation. The synthesis route of AgNPs reported here is rather an ecofriendly, energy‐saving and faster than many conventional techniques and, the biosynthesis process didn't need any additional chemicals apart from the metal precursor. © 2016 American Institute of Chemical Engineers Environ Prog, 36: 192–199, 2017

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Section: Resultssupporting

confidence: 86%

A biosynthesis route to nearly spherical AgNPs using chayote fruit extract

Chelli

Bag

Golder

2016

Env Prog and Sustain Energy

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“…The methods impending nanoparticles (NPs) like a chemical, photo-reduction, and thermal decomposition have been limited due to non-eco-friendly and expensive pathways [1][2][3]. Due to increasing hazards using toxic chemicals, capping agents, oxidizing and reducing agents in the synthesis of NPs, researchers have proposed new engineering strategies using the combination of natural resources and nano-biotechnology [4,5].…”

Section: Introductionmentioning

confidence: 99%

Flacourtia indica based biogenic nanoparticles: development, characterization, and bioactivity against wound associated pathogens

Ahmad

Taj

Ramzan

et al. 2020

Mater. Res. Express

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Surface engineered nanoparticles (NPs) are of great attention due to their targeted medical applications. The nature of the functionalized surface plays a vital role in achieving the required functionalities of engineered NPs. Owing to the biofilm formation capabilities of wound associated pathogens, impaired wound healing is a major complication in the medical field. In this context, herein, we report the biogenic synthesis of Flacourtia indica (FI) based NPs, i.e., FI-AgNPs using the aqueous leaf extract of this anti-bacterial herb. The newly developed FI-AgNPs were characterized using various analytical and imaging techniques such as UV-Vis spectroscopy, Fourier transform infrared spectroscopy (FT-IR), powder X-ray diffraction (PXRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The FI-AgNPs showed potent anti-microbial activity and anti-biofilm potential which were examined through a test tube adherence method and congo red agar method. It has been observed that synthesized FI-AgNPs inhibit the formation of a biofilm of observed bacteria, even at a minimum concentration of 80 μgml −1 . These findings suggest that synthesized FI-AgNPs could be used against wound associated microbes, especially bacterial coating on medical devices, to prevent antibiotic-resistant biofilm infections. Further development and research are obligatory to decode this skill into preventive and therapeutic strategies.

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“…Contudo, a necessidade de cultivar os microrganismos, de assepsia e o fato de muitos não crescerem na presença de altas concentrações de prata são desvantagens dessa rota de síntese. (P.P.N. VIJAY KUMAR et al 2014;KEAT et al 2015…”

Section: Uso De Fármacosunclassified