Biosynthesis of iron oxide nanoparticles using leaf extract of Ruellia tuberosa: Antimicrobial properties and their applications in photocatalytic degradation

Vasantharaj, Seerangaraj; Sathiyavimal, Selvam; Senthilkumar, P.; LewisOscar, Felix; Pugazhendhi, Arivalagan

doi:10.1016/j.jphotobiol.2018.12.025

Cited by 305 publications

(99 citation statements)

References 40 publications

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“…The actual reaction pathway of biomimetic nanoparticles synthesis has not been clearly elucidated. From previous studies, phenolic compounds, alongside other phytochemicals such as alkaloids, tannins and organic acids have successfully acted as reducing agents when reacted with metal precursors leading to the formation of nanoparticles (Ali et al, 2016(Ali et al, , 2019Khatami et al, 2019;Karpagavinayagam and Vedhi, 2019;Lakshmi et al, 2019;Vasantharaj et al, 2019). It is expected that the biosynthetic fabrication of nanoparticles could be due to contributions from different biomolecules, and not just a single molecule.…”

Section: Potential Mechanism Of Nanoparticles Synthesismentioning

confidence: 99%

Green synthesis of iron-based nanomaterials for environmental remediation: A review

Bolade

Williams

Benson

2020

Environmental Nanotechnology, Monitoring & Management

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The ever-increasing importance of green-based iron nanoparticles within the last decade and their environmental applications is a compelling reason to probe novel routes for their synthesis. Therefore, the principles of green chemistry, waste prevention, energy efficiency, safer solvents, and the benign precursor materials have become fundamental considerations in the synthesis process of these materials, birthing extensive study in this field. In this light, a comprehensive discussion of the successes of greener techniques and other biological nanotechnologies including the use of microorganisms (fungi, bacteria, actinomycetes, and viruses), algae, plant and their extracts for the synthesis of iron (Fe) nanoparticles (NPs) is presented. Although promising findings have been reported, substantial research gaps and the opportunity to capitalize on the emergence and rise of these eco-friendly sources have been identified. The application of synthesized nanoparticles for environmental remediation and their toxicological implications are also discussed.

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Section: Potential Mechanism Of Nanoparticles Synthesismentioning

confidence: 99%

Green synthesis of iron-based nanomaterials for environmental remediation: A review

Bolade

Williams

Benson

2020

Environmental Nanotechnology, Monitoring & Management

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“…[1][2][3] Among the antibiotic nanomaterials, silver nanoparticles (AgNPs) were endowed to more different fields in our daily life, including textiles, sanitary articles, and cosmetics, because of their excellent broad-spectrum antimicrobial properties. [3][4][5][6][7][8][9] There have been many biomedical products containing AgNPs on the market to date, such as wound dressings, catheters, bone cement, and artificial cardiac valves. 10,11 With the growing usage of nanosilver-containing products, people are more likely to be exposed to AgNPs.…”

Section: Introductionmentioning

confidence: 99%

<p>Size-dependent cellular uptake and localization profiles of silver nanoparticles</p>

Guo

Liu

et al. 2019

IJN

196

115

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Purpose: Silver nanoparticles (AgNPs) have been widely applied in various fields as excellent antibacterial reagents over the past decades. Although the particle size is considered as the most crucial factor influencing cellular uptake, transportation, and accumulation behaviors, there are still many controversies regarding the correlation between size and uptake of AgNPs. In this study, size-dependent cellular uptake of AgNPs with different diameters was investigated in B16 cells. Methods: The uptake of AgNPs was investigated by inductively coupled plasma-mass spectrometry (ICP-MS) and transmission electron microscopic (TEM) imaging in B16 cells. Results: Twenty nanometer and 100 nm AgNPs had the lowest and highest uptake efficiency at both 12 hours and 24 hours, respectively. Smaller AgNPs crossed the plasma membrane faster with uniform distribution: 5 nm AgNPs were detected in both cytoplasm and nucleus at 0.5 hours after incubation. Larger AgNPs were extremely difficult to migrate: 100 nm AgNPs were detected in the nucleus at 12 hours after incubation. Internalization of AgNPs was directly observed, mainly within membrane-bound structures, such as intracellular vesicles and late endosomes. The uptake of all four-sized AgNPs (5 nm, 20 nm, 50 nm, 100 nm) decreased significantly after the pre-treatment with chlorpromazine hydrochloride, which can specifically inhibit the clathrin-mediated endocytosis. The internalization efficiencies of AgNPs (5 nm, 20 nm, 50 nm) were markedly reduced by methyl-β-cyclodextrin, a specific caveolin-mediated endocytosis inhibitor, whereas 5-(N-ethyl-N-isopropyl) amiloride as an inhibitor of macropinocytosis inhibited the uptake of larger sizes of AgNPs (50 nm and 100 nm). Conclusion: The results suggest that the size of AgNPs can not only affect the efficiency of cellular uptake, but also the type of endocytosis. The clathrin-mediated endocytosis may be the most common endocytic pathway for AgNPs in B16 cells, and AgNPs at each size were likely to enter cells by a major internalization pathway.

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“…4 Nanomaterials have been found to possess efficient activities to catalyze a lot of chemical reactions. [5][6][7][8][9] Metal nanoparticles are particularly good catalysts due to the high concentration of surface electrons. Platinum nanoparticles (PtNPs) can act as strong and stable mimetics of superoxide dismutase and catalase, [10][11][12] and have been demonstrated to effectively attenuate oxidative stress-induced pulmonary inflammation and neurological impairment in mice.…”

Section: Introductionmentioning

confidence: 99%

<p>Platinum Nanoparticles As A Therapeutic Agent Against Dextran Sodium Sulfate-Induced Colitis In Mice</p>

Zhu

Zeng²,

Feng³

et al. 2019

IJN

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Purpose: This study aimed to evaluate the anti-colitis potential of platinum nanoparticles (PtNPs). Materials and methods: 5-, 30-and 70-nm PtNPs were administered to C57BL/6 mice once daily by intragastric gavage for 8 d during and after 5-d dextran sodium sulfate treatment. Results: According to body weight change, stool blood and consistency, and colon length and histopathology, PtNPs size-dependently alleviated DSS-induced murine colitis. PtNPs enhanced gut-barrier function by upregulating the colonic expressions of heat-shock protein 25 and tight junction proteins. Based on colonic myeloperoxidase activity, colonic and peripheral levels of interleukin-6 and tumor necrosis factor-α, and peripheral counts of white blood cells, PtNPs attenuated colonic and systemic inflammation. By suppressing lipopolysaccharide-triggered production of proinflammatory mediators, including nitric oxide, tumor necrosis factor-α and interleukin-6, PtNPs exerted direct anti-inflammatory activities in RAW264.7 macrophages through a mechanism involving intracellular reactive oxygen species scavenging and Toll-like receptor 4/NF-κB signaling suppression. High-throughput 16S rRNA sequencing of fecal samples unveiled that PtNPs induced gut dysbiosis by unfavorably altering α-diversity, Firmicutes/Bacteroidetes ratio, and richness of certain specific bacteria. Conclusion: PtNPs are a promising anti-colitis agent, but may negatively impact gut-microbiota.

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Biosynthesis of iron oxide nanoparticles using leaf extract of Ruellia tuberosa: Antimicrobial properties and their applications in photocatalytic degradation

Cited by 305 publications

References 40 publications

Green synthesis of iron-based nanomaterials for environmental remediation: A review

Green synthesis of iron-based nanomaterials for environmental remediation: A review

<p>Size-dependent cellular uptake and localization profiles of silver nanoparticles</p>

<p>Platinum Nanoparticles As A Therapeutic Agent Against Dextran Sodium Sulfate-Induced Colitis In Mice</p>

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