Green synthesis of silver nanoparticles using Laminaria japonica extract: Characterization and seedling growth assessment

Kim, Dae-Young; Saratale, Rijuta Ganesh; Shinde, Surendra K.; Syed, Asad; Ameen, Fuad; Ghodake, Gajanan S.

doi:10.1016/j.jclepro.2017.11.123

Cited by 145 publications

(47 citation statements)

References 35 publications

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“…It is well known that the extinction coefficient of AgNPs at their SPR band peak is proportional to the nanoparticle concentration. Thus, the method publicized powerful potential in producing high-concentration of AgNPs with controlled range of particles size which is the priority for large-scale fabrication and development of value-added nano products [22].…”

Section: Synthesis Of Agnps and Uv-visible Spectroscopymentioning

confidence: 99%

Biogenic synthesis of silver nanoparticles using extracts of Leptolyngbya JSC-1 that induce apoptosis in HeLa cell line and exterminate pathogenic bacteria

Zada

Ahmad

Khan

et al. 2018

Artificial Cells, Nanomedicine, and Biotechnology

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Utilizing novel approaches for the green synthesis of metal nanoparticles are of great importance. Therefore, we reported biogenic synthesis of silver nanoparticles (AgNPs) using extracts of Leptolyngbya strain JSC-1, and their significant applications against pathogenic bacteria and cancerous HeLa cell line. The biofabricated AgNPs were characterized by UV-visible spectroscopy, FTIR, SEM, TEM, DLS and zeta-potential. The as prepared AgNPs were assessed for inhibition of bacterial growth and induction of apoptosis in HeLa cells by different doses of AgNPs was evaluated. UV-visible spectroscopy and FTIR of AgNPs demonstrated the surface plasmon resonance at 413 nm and interaction among extract and nanoparticles, respectively. Electron microscopy revealed the morphology and DLS demonstrated size distribution of the particles (10-100 nm). Zeta potential values were between -47 and 0 mV, indicating stability of the particles. Proliferation of HeLa cells was significantly inhibited and severe cytotoxicity with higher intracellular uptake were observed after applying high concentration of AgNPs. Efficient inhibition zones (17 ± 2 and 21 ± 2 mm) were produced at maximum concentration (100 µl from 1 mg ml stock of AgNPs) for Staphylococcus aureus and Escherichia coli, respectively. These findings reveal that the biofabricated AgNPs possess strong antibacterial activity and ability to induce apoptosis in cancer cell line (HeLa).

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Section: Synthesis Of Agnps and Uv-visible Spectroscopymentioning

confidence: 99%

Biogenic synthesis of silver nanoparticles using extracts of Leptolyngbya JSC-1 that induce apoptosis in HeLa cell line and exterminate pathogenic bacteria

Zada

Ahmad

Khan

et al. 2018

Artificial Cells, Nanomedicine, and Biotechnology

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“…Compared with other conventional methods, NPs formed by biosynthesis contain non-toxic by-products that improve NP biocompatibility in various applications [11]. Being nature friendly [2], affordable [12], maintainable [13], and free from chemical pollution [14], biological agents have become excellent candidates for the production of NPs. Furthermore, the green synthesis of NPs using microorganisms has become the center of attention over the past few years due to remarkable properties, such as lower synthesis time [15], and it is a low-priced, safe, reliable [16], and single-step [14] procedure.…”

Section: Introductionmentioning

confidence: 99%

“…Being nature friendly [2], affordable [12], maintainable [13], and free from chemical pollution [14], biological agents have become excellent candidates for the production of NPs. Furthermore, the green synthesis of NPs using microorganisms has become the center of attention over the past few years due to remarkable properties, such as lower synthesis time [15], and it is a low-priced, safe, reliable [16], and single-step [14] procedure. Due to the capping feature of components in microorganisms, addition of extra stabilizers is not required [11].…”

Section: Introductionmentioning

confidence: 99%

Microwave-assisted green synthesis of silver nanoparticles using dried extracts of Chlorella vulgaris and antibacterial activity studies

Torabfam

Yüce

2020

Green Processing and Synthesis

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AbstractGreen synthesis of metallic nanoparticles (NPs) is acquiring considerable attention due to its environmental and economic superiorities over other methods. This study describes the practical synthesis of silver nanoparticles (AgNPs) through the reduction of silver nitrate solution using an algal source, Chlorella vulgaris, as the reducing as well as the stabilizing agent. The energy required for this synthesis was supplied by microwave radiation. The ultraviolet-visible spectroscopy exhibited a single peak related to the surface plasmon absorbance of AgNPs at 431 nm. The AgNPs with high stability (a zeta potential of −17 mV), hydrodynamic size distribution of 1–50 nm, and mostly spherical shape were obtained through a 10 min process. Fourier transform infrared spectroscopy analysis revealed that several functional groups, including carbonyl groups of C. vulgaris, play a significant role in the formation of functional NPs. Antibacterial features of the produced AgNPs were verified against those of Salmonella enterica subsp. enterica serovar typhimurium and Staphylococcus aureus, demonstrating a considerable growth inhibition at increasing concentrations of the NPs. As a result, the formed AgNPs can be used as a promising agent against bacterial diseases.

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“…As photocatalysts, they enhance the photo-degradation of organic pollutants in water thereby serving efficiently in water purification and environmental remediation [33,34]. Other reports on plant mediated biosynthesis of silver nanoparticles include Nigella arvensis [35], Phyllanthus amarus [36], banana peels [37], Ocimum sanctum [38], Laminaria japonica [39], Andean blackberry fruit extract [40] etc.…”

Section: Introductionmentioning

confidence: 99%

Silver nanoparticles mediated by extract of Guar plant (Cyamopsis tetragonoloba), and evaluation of their photocatalytic and antibacterial properties

Elemike¹,

Saiyed²,

Ekennia³

et al. 2019

Adv. Mater. Lett.

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The green synthesis of silver nanoparticles using Cyamopsis tetragonoloba plant extract, and their photocatalytic and antibacterial properties is reported. Three precursor concentrations of 1 mM, 2 mM and 5 mM were used, and at two different ratios of 1:5 and 1:10 plant extract to the precursor. The formation of the nanoparticles was followed by the periodic study of surface plasmon resonance using the UV-visible spectroscopy, which revealed the formation of nanoparticles with regular bands after 45 min. of reaction. Fourier transform infrared spectroscopy was used to study the functional groups present in the plant biomolecules which aided the reduction and stabilization of the nanoparticles. Transmission electron microscopy analysis and X-ray diffraction pattern showed the particle sizes and crystalline structures, while the zeta potential values indicated the stability of the nanoparticles. The 5 mM concentration gave the largest particle sizes of about 12.90 nm and the most stable particles. The photocatalytic properties of the particles studied using Methyl red showed a low efficiency of 17.85% degradation achieved under 2 h. The antibacterial potency of the nanoparticles was screened against some Gram-negative and Gram-positive bacteria. The results showed that the nanoparticles have good antibacterial activities.

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Green synthesis of silver nanoparticles using Laminaria japonica extract: Characterization and seedling growth assessment

Cited by 145 publications

References 35 publications

Biogenic synthesis of silver nanoparticles using extracts of Leptolyngbya JSC-1 that induce apoptosis in HeLa cell line and exterminate pathogenic bacteria

Biogenic synthesis of silver nanoparticles using extracts of Leptolyngbya JSC-1 that induce apoptosis in HeLa cell line and exterminate pathogenic bacteria

Microwave-assisted green synthesis of silver nanoparticles using dried extracts of Chlorella vulgaris and antibacterial activity studies

Silver nanoparticles mediated by extract of Guar plant (Cyamopsis tetragonoloba), and evaluation of their photocatalytic and antibacterial properties

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