Extracellular biosynthesis of silver nanoparticles using Bacillus sp. GP-23 and evaluation of their antifungal activity towards Fusarium oxysporum

Gopinath, V.; Velusamy, P.

doi:10.1016/j.saa.2012.12.087

Cited by 179 publications

(88 citation statements)

References 29 publications

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“…The toxicity of AgNPs on fungal hyphae and conidial development was reported also by Kim et al [139] and He et al [140]. Biosynthesized AgNPs were found to exhibit strong inhibitory effects against fungal plant pathogens such as Sclerotinia sclerotiorum, R. solani, M. phaseolina, A. alternata, Curvularia lunata, Botrytis cinerea [141], F. oxysporum [142], Pyricularia sp., Monilinia sp. and Colletotrichum coccodes [143].…”

Section: Nanofungicides and Nanoscale Antimicrobial Agentssupporting

confidence: 53%

Application Of Nanotechnology In Agriculture And Food Industry, Its Prospects And Risks

Jampílek

Kráľová

2015

Ecological Chemistry and Engineering S

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Nanoagrochemicals, such as nanopesticides, nanofertilizers or plant growth stimulating nanosystems, were primarily designed to increase solubility, enhance bioavailability, targeted delivery, controlled release and/or protection against degradation resulting in the reduced amount of applied active ingredients and finally in a decrease of dose-dependent toxicity/burden. This paper is a comprehensive up-to-date review related to the preparation and the biological activity of nanoformulations enabling gradual release of active ingredient into weeds and the body of pests and controlled release of nutrients to plants. The attention is also devoted to the decrease of direct environmental burden and economic benefits due to application of nanoformulations, where less amount of active ingredient is needed to achieve the same biological effect in comparison with bulk. The application of nanotechnology in the areas such as food packaging, food security, encapsulation of nutrients and development of new functional products is analysed. The use of nanoparticles in biosensors for detection of pathogens and contaminants as well as in DNA and gene delivery is discussed as well. Benefits and health risks of nanoagrochemicals are highlighted, and special attention is given to nanoecotoxicology and guidelines and regulatory documents related to the use of nanoformulations in agriculture and food industry.

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Section: Nanofungicides and Nanoscale Antimicrobial Agentssupporting

confidence: 53%

Application Of Nanotechnology In Agriculture And Food Industry, Its Prospects And Risks

Jampílek

Kráľová

2015

Ecological Chemistry and Engineering S

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“…Upon addition of aqueous hydrochloroaurate to the supernatant resulted in reduction which was visually observed with change in color change from yellowish to ruby red color due to surface plasmon resonance (SPR) of nanoparticles [11]. The UV-Visible spectra recorded at various time intervals for gold nanoparticles showed absorption peak in the range of 400-700 nm, Fig.…”

Section: Uv-visible Analysismentioning

confidence: 96%

Biosynthesis of gold nanoparticles by Pseudomonas veronii AS41G inhabiting Annona squamosa L.

Baker

Satish

2015

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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“…In the control sample of cell-free extract the peak was observed at 280 nm, which is characteristic of the biomolecules [40]. Interestingly there is no precipitation observed for synthesized AgNPs solution over 90 days of storage at 37°C and the sample was scanned at the same wavelength.…”

Section: Green Synthesis and Characterization Of Agnpsmentioning

confidence: 98%

One Pot Green Synthesis of Colloidal Silver Nanocrystals Using the Ventilago maderaspatana Leaf Extract: Acute Toxicity on Malaria, Zika Virus and Filariasis Mosquito Vectors

Azarudeen¹,

Govindarajan

Alshebly

et al. 2016

J Clust Sci

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Mosquitoes act as a vector for most of the life-threatening diseases. The green synthesis of eco-friendly metal nanoparticles is a fast-growing branch of current nanoscience with a number of biomedical and entomological implications. Here, we have synthesized silver nanoparticles (AgNPs) by using a poorly studied Indian plant, Ventilago maderaspatana. The results recorded from UV-Visible spectrophotometry, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction analysis (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) confirmed the quick synthesis of AgNPs. The toxic activity of V. maderaspatana leaf extract and biosynthesized AgNPs was evaluated against the malaria vector Anopheles stephensi, the Zika virus vector Aedes aegypti and the filariasis vector Culex quinquefasciatus. Compared to the leaf aqueous extract, AgNPs showed higher toxicity against A. stephensi, A. aegypti, and C. Clust Sci (2017) 28:369-392 DOI 10.1007/s10876-016-1103 150 and 180 lg/mL led to no egg hatchability. In adulticidal experiments, the maximum efficacy was observed on A. stephensi (LD 50 = 41.19 lg/mL), followed by A. aegypti (LD 50 = 44.85 lg/mL) and C. quinquefasciatus (LD 50 = 48.94 lg/ mL), respectively. V. maderaspatana extract and green fabricated AgNPs were found safer to non-target aquatic biocontrol organisms Anisops bouvieri, Diplonychus indicus and Gambusia affinis, with LC 50 ranging from 1673 to 41,854 lg/ml.

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Extracellular biosynthesis of silver nanoparticles using Bacillus sp. GP-23 and evaluation of their antifungal activity towards Fusarium oxysporum

Cited by 179 publications

References 29 publications

Application Of Nanotechnology In Agriculture And Food Industry, Its Prospects And Risks

Application Of Nanotechnology In Agriculture And Food Industry, Its Prospects And Risks

Biosynthesis of gold nanoparticles by Pseudomonas veronii AS41G inhabiting Annona squamosa L.

One Pot Green Synthesis of Colloidal Silver Nanocrystals Using the Ventilago maderaspatana Leaf Extract: Acute Toxicity on Malaria, Zika Virus and Filariasis Mosquito Vectors

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