Biosynthesis and characterization of silver nanoparticles using panchakavya, an Indian traditional farming formulating agent

Abstract

Synthesis of silver nanoparticles (AgNPs) with biological properties is of vast significance in the development of scientifically valuable products. In the present study, we describe simple, unprecedented, nontoxic, eco-friendly, green synthesis of AgNPs using an Indian traditional farming formulating agent, panchakavya. Silver nitrate (1 mM) solution was mixed with panchakavya filtrate for the synthesis of AgNPs. The nanometallic dispersion was characterized by surface plasmon absorbance measuring 430 nm. Transmission electron microscopy showed the morphology and size of the AgNPs. Scanning electron microscopy–energy-dispersive spectroscopy and X-ray diffraction analysis confirmed the presence of AgNPs. Fourier transform infrared spectroscopy analysis revealed that proteins in the panchakavya were involved in the reduction and capping of AgNPs. In addition, we studied the antibacterial activity of synthesized AgNPs. The synthesized AgNPs (1–4 mM) extensively reduced the growth rate of antibiotic resistant bacteria such as Aeromonas sp., Acinetobacter sp., and Citrobacter sp., according to the increasing concentration of AgNPs.

Synthesis and characterization of Solanum nigrum-mediated silver nanoparticles and its protective effect on alloxan-induced diabetic rats

“…Analysis of AgNPs through Energy dispersive X-ray (EDX) spectrometers confirmed the presence of elemental silver signal at 3 keV along (Fig. 2b) with other weak signals corresponding to oxygen and carbon, which could have essentially derived from the plant extract and consistent with previous studies [31,32]. FTIR measurement was carried out to identify the possible biomolecules in S. nigrum leaf extract responsible for capping leading to efficient stabilization of the silver nanoparticles (Fig.…”

Sunroot mediated synthesis and characterization of silver nanoparticles and evaluation of its antibacterial and rat splenocyte cytotoxic effects

“…7,8 However, the adverse effects of AgNPs need to be carefully evaluated before they could be used in antimicrobial products. Hence, phytosynthesized AgNPs were studied for antibacterial activity against phytopathogenic bacteria, namely, R. solanacearum and X. axonopodis.…”

“…Several studies reported AgNPs synthesis using biological materials, such as microorganisms, plant extracts, milk, and panchakavya. [7][8][9][10] Phytosynthesis of AgNPs using plant materials has an edge over microbial mediated synthesis owing to their immediate and large-scale production. 11,12 Thus, considerable attention is given to exploit the…”

“…The results are consistent with our previous study reporting the antibacterial activity of AgNPs against antibiotic resistant strains. 7 …”

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“…This technique is very important for the analysis of metal nanoparticles and provides information about the optical properties of the synthesized nanosize silver particles 11,12 . All the silver nanobioconjugates synthesized from grape seed extract and its component resveratrol showed distinct peak at 420nm, indicated the characteristic of AgNPs (Fig.…”