Green Synthesis of Zinc Oxide (ZnO) Nanoparticles from Green Algae and Their Assessment in Various Biological Applications

Micromachines, Journal Year: 2023, Volume and Issue: 14(5), P. 928 - 928

Published: April 25, 2023

The biosynthesis of algal-based zinc oxide (ZnO) nanoparticles has shown several advantages over traditional physico-chemical methods, such as lower cost, less toxicity, and greater sustainability. In the current study, bioactive molecules present in Spirogyra hyalina extract were exploited for biofabrication capping ZnO NPs, using acetate dihydrate nitrate hexahydrate precursors. newly biosynthesized NPs characterized structural optical changes through UV-Vis spectroscopy, Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive (EDX). A color change reaction mixture from light yellow to white indicated successful NPs. absorption spectrum peaks at 358 nm (from acetate) 363 nitrate) confirmed that caused by a blue shift near band edges. extremely crystalline hexagonal Wurtzite structure was XRD. involvement metabolites algae bioreduction demonstrated FTIR investigation. SEM results revealed spherical-shaped addition this, antibacterial antioxidant activity investigated. showed remarkable efficacy against both Gram-positive Gram-negative bacteria. DPPH test strong

Language: Английский

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Advances and significances of titaniumin dental implant applications

Results in Chemistry, Journal Year: 2024, Volume and Issue: 7, P. 101394 - 101394

Published: Jan. 1, 2024

Titanium has an extensive record of serving as excellent option for the material used in implant construction. It been demonstrated that certain Ti alloys are superior to other types every respect. Better osseointegration is a critical component implants, and titanium's biocompatibility, corrosion tribology, microstructure, cell adhesion mechanism have subject intensive study several years. Significant strides made dental research thanks company's production process, analysis material's properties, creation new innovative alloys. More studies should be done at dentistry site on human bone determine its compatibility with metals In this article, we will discuss latest advancements regarding resistance, mechanical stability, surface chemistry, electromechanical behavior titanium implants. addition that, also recent developments production, such additive manufacturing technology, well characterization techniques, microstructure characterization, testing, biocompatibility tests, clinical use

Language: Английский

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Iron Oxide Nanoparticles: Green Synthesis and Their Antimicrobial Activity

Nanomaterials, Journal Year: 2023, Volume and Issue: 13(22), P. 2919 - 2919

Published: Nov. 8, 2023

The rise of antimicrobial resistance caused by inappropriate use these agents in various settings has become a global health threat. Nanotechnology offers the potential for synthesis nanoparticles (NPs) with activity, such as iron oxide (IONPs). IONPs is promising way to overcome or pathogenicity because their ability interact several biological molecules and inhibit microbial growth. In this review, we outline pivotal findings over past decade concerning methods green using bacteria, fungi, plants, organic waste. Subsequently, delve into primary challenges encountered utilizing diverse organisms materials. Furthermore, compile most common employed characterization IONPs. To conclude, highlight applications antibacterial, antifungal, antiparasitic, antiviral agents.

Language: Английский

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Multifunctional Spirogyra-hyalina-Mediated Barium Oxide Nanoparticles (BaONPs): Synthesis and Applications

Molecules, Journal Year: 2023, Volume and Issue: 28(17), P. 6364 - 6364

Published: Aug. 31, 2023

This research aims to biosynthesize Barium oxide nanoparticles (BaONPs) for biomedical applications, using Spirogyra hyalina as a stabilizing and reducing agent. UV–visible spectroscopy, Fourier transform infrared spectroscopy (FTIR), energy-dispersive X-ray, X-ray diffraction (XRD), scanning electron microscopy (SEM) were used physiochemically characterize the barium nanoparticles, while antibacterial, minimum inhibitory concentration, antifungal, free radicle scavenging, anti-inflammatory assay performed assess therapeutic potential of synthesized BaONPs. revealed bands at 615 692 cm−1 that corresponded formation Scanning spherical flower-shaped morphology BaONPs having an average diameter 64.01 ± 2.0 nm. Both Gram-positive Gram-negative bacterial growth was halted by demonstrating their efficacy up 19.12 0.31 mm against E. coli, 18.83 0.44 Klebsiella pneumoniae, 17.31 0.59 P. aeruginosa, 16.56 0.37 S. aureus, 15.75 0.38 epidermidis, respectively. The concentration 9.0, 6.3, 5.5, 4.5, µg/mL not effective fungal strains such Rhizoctonia solani, Fusarium proliferatum. exhibited potent antioxidant activity through inhibiting cyclooxygenases type 1 (43.12 1.21%) 2 (41.23 1.56%), DPPH radicles 43.52 0.29% 400 µg/mL. In conclusion, biomolecules derived from have demonstrated remarkable ability generate stable offering promising prospects utilization agents coating materials in various applications.

Language: Английский

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Recent trends in phyto-mediated iron-based nanomaterials for environmental remediation and biomedical applications

Inorganic Chemistry Communications, Journal Year: 2023, Volume and Issue: 160, P. 111976 - 111976

Published: Dec. 30, 2023

Language: Английский

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Biogenic synthesis of iron oxide nanoparticles and experimental modeling studies on the removal of heavy metals from wastewater

Journal of Saudi Chemical Society, Journal Year: 2023, Volume and Issue: 28(1), P. 101777 - 101777

Published: Dec. 7, 2023

Water pollution is a major global challenge due to the fast expansion of industrial activities and increasing human population. Certain heavy metals can be exceedingly hazardous contribute significantly water contamination. In this study, iron oxide nanoparticles (IONPs) were synthesized using cyanobacteria extract remove (Cd Pb) from wastewater. To characterize IONPs, several analytical techniques employed such as Ultraviolet-visible spectroscopy revealed an SPR (surface plasmon resonance) peak at 348 nm, FTIR (Fourier transform infrared) spectral analysis show OH, C-H S=O functional groups which confirmed biomolecules responsible for biogenic synthesis stability. The surface morphology IONPs was investigated (SEM) scanning electron reveled their nearly spherical or cubic shape. Additionally, XRD (X-ray diffraction) crystallinity with crystalline size measuring 18.21 nm. Effects contact time, pH, initial metal ions concentrations, dosage studied on adsorption Cd Pb ions. Different kinetics isotherm models applied experimental data. Pseudo second-order kinetic Langmuir well fitted onto IONPs. Higher correlation coefficients (R2) values (R2: 0.990 adsorption) 0.998 0.999 adsorption, respectively) found, indicated favorable interaction between adsorbent. calculated maximal capacities 105.932 118.764 mg/g Pb, respectively. Recyclability conducted after five adsorption/desorption cycles, retained efficiency negligible decline. After removal up 80.41 88.35 % Results study indicate that cyanobacteria-mediated efficient adsorbent contaminated aqueous solution.

Language: Английский

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Breaking Barriers in Eco-Friendly Synthesis of Plant-Mediated Metal/Metal Oxide/Bimetallic Nanoparticles: Antibacterial, Anticancer, Mechanism Elucidation, and Versatile Utilizations

Journal of Nanomaterials, Journal Year: 2024, Volume and Issue: 2024, P. 1 - 48

Published: April 12, 2024

Nanotechnology has emerged as a promising field in pharmaceutical research, involving producing unique nanoscale materials with sizes up to 100 nm via physiochemical and biological approaches. Nowadays more emphasis been given eco-friendly techniques for developing nanomaterials enhance their applications minimize health environmental risks. With the help of green nanotechnology, wide range metal, metal oxide, bimetallic nanoparticles distinct chemical compositions, sizes, morphologies have manufactured which are safe, economical, environment friendly. Due biocompatibility vast potential biomedical (antibacterial, anticancer, antiviral, analgesic, anticoagulant, biofilm inhibitory activity) other fields such (nanofertilizers, fermentative, food, bioethanol production, construction field), garnered significant interest worldwide. The precursors combined natural extracts plants, algae, fungi, bacteria get potent novel Ag, Au, Co, Cu, Fe, Zr, Zn, Ni, Pt, Mg, Ti, Pd, Cd, Bi2O3, CeO2, Co3O4, CoFe2O4, CuO, Fe2O3, MgO, NiO, TiO2, ZnO, ZrO2, Ag-Au, Ag-Cr, Ag-Cu, Ag-Zn, Ag-CeO2, Ag-CuO, Ag-SeO2, Ag-TiO2, Ag-ZnO, Cu-Ag, Cu-Mg, Cu-Ni, Pd-Pt, Pt-Ag, ZnO-CuO, ZnO-SeO, ZnO-Se, Se-Zr, Co-Bi2O3. These plant-mediated possess excellent antibacterial anticancer activity when tested against several microorganisms cancer cell lines. Plants contain essential phytoconstituents (polyphenols, flavonoids, terpenoids, glycosides, alkaloids, etc.) compared sources (bacteria, algae) higher concentration that play vital role development because these plant-phytoconstituents act reducing, stabilizing, capping agent helps nanoparticles. After concluding all findings, this review designed first time way it imparts satisfactory knowledge about together, along mechanisms. Additionally, provides information characterization (UV–vis, FT-IR, DLS, XRD, SEM, TEM, BET, AFM) employed nanoparticles, applications, industries. Hence, various types versatile application diverse is not covered pieces literature.

Language: Английский

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Antifungal screening of selenium nanoparticles biosynthesized by microcystin-producing Desmonostoc alborizicum

BMC Biotechnology, Journal Year: 2023, Volume and Issue: 23(1)

Published: Sept. 27, 2023

Metal nanoparticles exhibit excellent antifungal abilities and are seen as a good substitute for controlling different kinds of fungi. Of all known taxa, cyanobacteria have received significant consideration nanobiofactories, result the cellular assimilation heavy metals from environment. The bioactive enzymes, polysaccharides pigments can be used reducers coatings during biosynthesis. probability activity selenium (SeNPs) to prevent plant fungi that affect humans was evaluated toxic Iranian cyanobacterial strain Desmonostoc alborizicum study biotechnology SeNP synthesis first time. Characterization with UV-Vis spectrophotometer showed formation SeNPs in range 271-275 nm appearance an orange color. Morphological examination Transmission Electron Microscopy (TEM), revealed spherical shape nanoparticles. results X-Ray Diffraction (XRD) 7 peaks hexagonal structure average crystal size equal 58.8 nm. dispersion index reported 0.635, which indicated homogeneity nanoparticle droplet size. zeta potential + 22.7. Fourier-transform infrared spectroscopy (FTIR) analysis exhibited sharp intense peak located at wave number 404 cm- 1, related synthesized this research. among investigated fungi, Pythium ultimum had highest resistance (14.66 ± 0.52 µg/ml), while Alternaria alternata sensitivity (9.66 0.51 µg/ml) (p < 0.05). To best our knowledge is report concerning characterization screening biosynthesized by cyanobacteria, could effective candidates medical applications.

Language: Английский

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Antimicrobial activity of plant-extract-mediated synthesis of Silver-Zinc Oxide nanocomposites and their acaricidal efficacy on Hyalomma marginatum ticks

Biocatalysis and Agricultural Biotechnology, Journal Year: 2023, Volume and Issue: 51, P. 102765 - 102765

Published: June 17, 2023

Nanocomposite materials have received a lot of attention recently, and interest at the academic industrial levels because they better qualities than single nanoparticles metal, particularly bio-fabricated type that is more environment-friendly. The main goal this investigation to determine whether leaf extract Lawsonia inermis can be applied as reducing stabilizing material in production Ag-ZnO nanocomposite (NCs). Additionally, investigate probable biological actions these Ag-ZnO-NCs. were synthesized using L. leaves' extract. characterised an Emission-Scanning Electron Microscope (SEM), Energy-Dispersive X-ray spectroscopy diffraction. Ag-ZnO-NCs additionally evaluated for their acaricidal, antibacterial, antifungal performance, hemocompatibility properties. findings proven crystalline nanoscale with particle sizes between 20 160 nm. revealed acaricidal activity against Hyalomma marginatum showed effective antibacterial action opposed Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, minimum inhibitory concentration (100 μg/ml). Moreover, exhibited significant Aspergillus flavus well A. niger. present work pointed out fresh was fabrication which critical potency appeared hemocompatible.

Language: Английский

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Synthesis of iron oxide nanoparticles using orange fruit peel extract for efficient remediation of dye pollutant in wastewater

Environmental Geochemistry and Health, Journal Year: 2024, Volume and Issue: 46(2)

Published: Jan. 16, 2024

Language: Английский

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