Green synthesis of metal nanoparticles loaded ultrasonic‐assisted
            <i>Spirulina platensis</i>
            using algal extract and their antimicrobial activity

Gunasundari, Elumalai; Kumar, Ponnusamy Senthil; Carolin, C. Femina; Arumugam, T.; Saravanan, A.

doi:10.1049/iet-nbt.2016.0223

Cited by 28 publications

(6 citation statements)

References 22 publications

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“…The average size of the particles was calculated using Debye-Scherrer"s formula. green synthesised metal nanoparticles loaded ultrasonicassisted S. platensis algal extract showed rougher and irregular spores developed on the surface of UASP and confirmed that the metal nanoparticles (Ag, Cr, Pb and Zn) were successfully coated on UASP material (Gunasundari et al, 2017) [9] . In line with this result of Santhosh Kumar et al (2014) [10] revealed that SEM images of Psidium guajava mediated TiO 2 NPs were smooth and sphericalin shape with various physical morphology, particle size and aspect ratio.…”

Section: Results and Discussion Uv-vis Absorbance Spectroscopymentioning

confidence: 69%

Synthesis of titanium dioxide nanoparticles using Spirulina platensis algae extract

Vasanth¹,

KA²,

Susikaran³

2022

Pharma Innovation

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Section: Results and Discussion Uv-vis Absorbance Spectroscopymentioning

confidence: 69%

Synthesis of titanium dioxide nanoparticles using Spirulina platensis algae extract

Vasanth¹,

KA²,

Susikaran³

2022

Pharma Innovation

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“…The FT‐IR ranges (548.34 cm −1 –3286.85 cm −1 ) are most typically employed for functional group analysis in the production of AgNP from Spirulina platensis . silver nanoparticles produced by biosynthesis of Platensis Spirulina , [21] According to certain research, utilizing FT‐IR for AgNP functional group analysis reveals that the presence of numerous functional groups is responsible for the reduction of silver ions from salt solutions, such as AgNO 3 [22] . The FT‐IR spectrum of the extract showed prominent peaks at 3328, 2929 and 1600 cm −1 which are assigned to the OH, CH and C=O functional groups.…”

Section: Discussionmentioning

confidence: 99%

“…Gram negative bacteria Acetobacter , Klebsiella , Proteus vulgaris , and Pseudomonas aeruginosa were cultivated on freshly produced nutrient broth media, [40] then inoculated on fresh petri plates with nutrient agar media. Test solution AgNP were added at concentration of 50 μl, 75 μl, and 100 μl, [41] to identify antibacterial activity of AgNP using agar well diffusion method [21] …”

Section: Methodsmentioning

confidence: 99%

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Exploring the Therapeutic Properties of Alga‐Based Silver Nanoparticles: Anticancer, Antibacterial, and Free Radical Scavenging Capabilities

Khan,

Hassan,

Aamir

et al. 2023

Chemistry & Biodiversity

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The current study was designed to evaluate the antioxidant, anticancer and antimicrobial activities of silver nanoparticles (AgNPs) biosynthesized by Spirulina platensis extract. The biosynthesized silver nanoparticles were characterized using Fourier transform infrared (FT‐IR) analysis, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X‐ray diffraction (XRD) analysis. The antioxidant activity of the biosynthesized AgNPs were determined via DPPH radical scavenging assay while its anticancer activity was determined using the MTT assay. The antimicrobial activity of the biosynthesized AgNPs were analyzed by disc diffusion method. Spirulina platensis acts as a reducing and capping agent. The efficacy of silver nanoparticles (AgNPs) in inhibiting the growth of Gram‐negative bacteria, specifically Acetobacter, Klebsiella, Proteus vulgaris, and Pseudomonas aeruginosa, was assessed by the utilisation of the diffusion method. The study aimed to evaluate the efficacy of biosynthesized silver nanoparticles (AgNPs) against many strains of Pseudomonas aeruginosa bacteria. The findings of the study revealed that when administered in doses of 50 μl, 75 μl, and 100 μl, the largest observed zone of inhibition corresponded to measurements of 10.5 mm, 14 mm, and 16 mm, respectively. A zone of inhibition with dimensions of 8 mm, 10.5 mm, and 12 mm was detected during testing against Acetobacter at concentrations of 50 μl, 75 μl, and 100 μl, respectively. The findings also indicate that there is a positive correlation between the concentration of AgNP and the DPPH scavenging ability of silver nanoparticles. The percentage of inhibition observed at concentrations of 500 μg/ml, 400 μg/ml, 300 μg/ml, 200 μg/ml, and 100 μg/ml were recorded as 80±1.98, 61±1.98, 52±1.5, 42±1.99, and 36±1.97, respectively. In addition, it was observed that the silver nanoparticles exhibited the greatest antioxidant activity at a concentration of 500 g/ml, with a measured value of 80.89±1.99. The IC‐50 values, representing the inhibitory concentration required to achieve 50 % inhibition, were found to be 8.16, 19.15, 30.14, 41.13, and 63.11 at inhibition levels of 36±1.97, 42±1.99, 52±1.5, 61±1.98, and 80±1.98, respectively.

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“…The nanoparticle effects on live species have received considerable attention in recent years [1, 2]. Many studies have shown that fungi [3, 4], bacteria [5, 6], and plants [7] are affected by various nanoparticles. Among living organisms, plants play a key role in food chains.…”

Section: Introductionmentioning

confidence: 99%

Facile microwave‐assisted synthesis of NiO nanoparticles and its effect on soybean ( Glycine max )

Tohidiyan¹,

Hashemi

Boroujeni

2018

IET nanobiotechnol.

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NiO nanoparticles in high purity, 15 ± 0.5 nm in size, were prepared via solid-state microwave irradiation. The [Ni(NH 3) 6 ](NO 3) 2 complex as a novel source was decomposed in the presence of microwave irradiation for a short time (10 min). The present method is facile, safe, and low-cost. This method exhibits other advantages; there is no need of a solvent, fuel, surfactant, expensive material, or complex instrument. Synthesised NiO nanoparticles were determined by various analyses. Also, for the first time, NiO nanoparticle effects on biochemical factors in soybean were investigated. Seeds of soybean were grown in the Murashige and Skoog agar medium containing different concentrations of NiO nanoparticles (0, 200, and 400 mg/L) for 21 days under growth chamber conditions. Estimates of malondialdehyde, hydrogen peroxide contents, and antioxidant enzymes (catalase and ascorbate peroxidase) under treatment of NiO nanoparticles were assayed. The result showed that by significantly increasing the concentration of NiO nanoparticles, the activity of catalase and ascorbate peroxidase enzymes was enhanced. Malondialdehyde and hydrogen peroxide contents significantly increased in the presence of NiO nanoparticles. In this study, the increasing activity of catalase and ascorbate peroxidase was not enough for radical oxygen species detoxification.

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Green synthesis of metal nanoparticles loaded ultrasonic‐assisted Spirulina platensis using algal extract and their antimicrobial activity

Cited by 28 publications

References 22 publications

Synthesis of titanium dioxide nanoparticles using Spirulina platensis algae extract

Synthesis of titanium dioxide nanoparticles using Spirulina platensis algae extract

Exploring the Therapeutic Properties of Alga‐Based Silver Nanoparticles: Anticancer, Antibacterial, and Free Radical Scavenging Capabilities

Facile microwave‐assisted synthesis of NiO nanoparticles and its effect on soybean ( Glycine max )

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