Plant-Based Fabrication of Silver Nanoparticles and Their Application

Mishra, Vinod Kumar; Husen, Azamal; Rahman, Qazi Inamur; Iqbal, Muhammad; Sohrab, Sayed Sartaj; Yassin, Mansur Osman

doi:10.1007/978-3-030-05569-1_5

Cited by 12 publications

(6 citation statements)

References 180 publications

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“…The reduction of silver ions into AgNPs by phytochemicals is often detected by a change in color of the reaction mixture which is (Mishra et al 2019). The colour of the reaction mixture changed to yellowish-brown (Mie et al 2012, Dasari et al 2013, Mie et al 2014a, Din et al 2015, Paul et al 2015, Leela & AnchanaDevi 2017, Khandel et al 2018, Siddiqi et al 2018.…”

Section: Resultsmentioning

confidence: 99%

“…Among the metal nanoparticles, silver nanoparticles are the most preferred nanoparticles (Mishra et al 2019). The few reported studies on lichen/ lichen metabolite mediated fabrication of silver nanoparticles (AgNPs) have shown that lichens can be used for green synthesis of AgNPs which show antimicrobial activity against a broad spectrum of bacterial strains (Mie et al 2012, Dasari et al 2013, Yıldız et al 2014.…”

Section: Introductionmentioning

confidence: 99%

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Biogenic fabrication, characterization, and assessment of antibacterial activity of silver nanoparticles of a high altitude Himalayan lichen - Cladonia rangiferina (L.) Weber ex F.H. Wigg.

Rai¹,

Gupta²

2019

Trop Plant Res

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Silver nanoparticles synthesized using plant metabolites provide an edge over chemically synthesized compounds due to their comparatively efficient antimicrobial activity. In the present study, AgNPs was prepared by bioreduction of silver nitrate (AgNO 3 ) using the aqueous extract of Cladonia rangiferina collected ≥3500 m in Uttarkashi district of Uttarakhand, western Himalaya. The formation of Ag NPs was indicated by yellow-brown color after 72 h. The AgNPs were characterized by UV-Vis spectrophotometry, Fourier transformed infrared (FTIR) spectroscopy, scanning electron spectroscopy (SEM) analysis. Ag-NPs thus obtained were tested for antimicrobial activity against selected gram-negative (i.e. Escherichia coli, Klebsiella pneuomoniae, and Pseudomonas aeruginosa) and gram-positive (i.e. Bacillus subtilis, Staphylococcus aureus, and Staphylococcus epidermidis) bacterial strains employing Bauer-Kirby's disk diffusion assay using Gentamicin as positive control and distil water as negative control. The bioreduction of AgNO 3 yielded stable spherical and rod-shaped Ag-NPs showing characteristic UV-Vis spectral band peak with specific color change. The FTIR showed the role of many functional groups of different organic lichen secondary metabolites in AgNPs fabrication and stabilization. The synthesized AgNPs showed enhanced activity to positive control (i.e. Gentamicin). The study highlighted that lichen AgNPs can be used as better antibacterial material.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biogenic fabrication, characterization, and assessment of antibacterial activity of silver nanoparticles of a high altitude Himalayan lichen - Cladonia rangiferina (L.) Weber ex F.H. Wigg.

Rai¹,

Gupta²

2019

Trop Plant Res

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“…Similarly, Pallavi et al highlighted significant changes in shoot length and fresh and dry weights of three different crops, viz , wheat, cowpea, and brassica after foliar application of AgNPs (0, 50, and 75 ppm), although there was no benefit on the root tissues. However, the mechanisms responsible for this species specificity with regard to the impact of NPs remain unknown …”

Section: Results and Discussionmentioning

confidence: 99%

“…However, the mechanisms responsible for this species specificity with regard to the impact of NPs remain unknown. 10 Treatment with Ch@BSNP significantly promoted chlorophyll (chl. a, chl.…”

Section: Gc−ms Analysismentioning

confidence: 97%

“…Importantly, tuning the shape, size, surface potential, and overall activity of nanoparticles can be achieved through the addition of various biologically or chemically derived coatings or ligands. , For example, the fabrication of silver nanoparticle composites with biodegradable polymers increased both biocompatibility and antimicrobial efficacy . Porchezhiyan and Noorjahan synthesized silver nanoparticles using the extract of Sapindus mukorossi plant, and particles were subsequently incorporated into chitosan to prepare a nanocomposite hydrogel film.…”

Section: Introductionmentioning

confidence: 99%

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Hybridization of Chitosan and Biosynthesized Silver Nanoparticles to Enhance Antimicrobial Activity against Phytopathogens in Tomato (Solanum lycopersicum)

Giri

Pandey

Kumari

et al. 2022

ACS Agric. Sci. Technol.

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Chitosan-hybridized biogenic silver nanoparticles (Ch@BSNP) were synthesized with the extracellular metabolites of Trichoderma viride. Chitosan hybridization- and T. viride-derived compounds associated with the particles were confirmed by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM)-energy dispersive X-ray analysis (EDX), and gas chromatography–mass spectrometry (GC–MS) analysis. The particles had a ζ-potential 19.2 mV and a hydrodynamic size of 97.74 nm with a polydispersity index (PDI) of 0.198. TEM analysis revealed particles of spherical shape and actual size range between 30 and 35 nm. The antimicrobial activity of these particles was compared to chitosan alone and nonhybridized particles against three bacterial phytopathogens, viz, Pseudomonas syringae, Erwinia chrysanthemi, and Xanthomonas campestris. The zone size was 50.0, 29.75, and 34.00 mm with Ch@BSNP, respectively, while the corresponding values for BSNP were 29.75, 23.5, and 18.00 mm. In a liquid culture assay, exposure to Ch@BSNP significantly decreased the size of bacterial cells from 3905.00 to 2711.00 nm for P. syringae, from 3484.00 to 3386.00 nm for E. chrysanthemi, and from 7823.33 to 5956.33 nm for X. campestris. Similar increased activity of Ch@BSNP was also observed against four fungal plant pathogens, viz, Sclerotium rolfsii, Rhizoctonia solani, Alternaria alternata, and Alternaria brassicicola. The Ch@BSNP also demonstrated lower toxicity on noncancerous human cell lines than antimicrobial efficacy. In a greenhouse study, Ch@BSNP reduced the leaf spot disease incidence in tomato by up to 60% and also enhanced several physical and physiological attributes, viz, root and shoot lengths, fresh and dry weights, and chlorophyll and carotenoid contents compared to the diseased plant. These observed beneficial effects and overall biocompatibility of Ch@BSNP suggest that this material may be a safe and effective antimicrobial bioagent for sustainable nano-enabled agriculture.

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The Harsh Environment and Resilient Plants: An Overview

Husen

2021

Harsh Environment and Plant Resilience

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Plant-Based Fabrication of Silver Nanoparticles and Their Application

Cited by 12 publications

References 180 publications

Biogenic fabrication, characterization, and assessment of antibacterial activity of silver nanoparticles of a high altitude Himalayan lichen - Cladonia rangiferina (L.) Weber ex F.H. Wigg.

Biogenic fabrication, characterization, and assessment of antibacterial activity of silver nanoparticles of a high altitude Himalayan lichen - Cladonia rangiferina (L.) Weber ex F.H. Wigg.

Hybridization of Chitosan and Biosynthesized Silver Nanoparticles to Enhance Antimicrobial Activity against Phytopathogens in Tomato (Solanum lycopersicum)

The Harsh Environment and Resilient Plants: An Overview

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