Garcinia mangostana L. Leaf-Extract-Assisted Green Synthesis of CuO, ZnO and CuO-ZnO Nanomaterials for the Photocatalytic Degradation of Palm Oil Mill Effluent (POME)

Catalysts, Journal Year: 2024, Volume and Issue: 14(8), P. 486 - 486

Published: July 29, 2024

The treatment of palm oil mill effluent (POME) poses a significant challenge for Malaysia’s industry, necessitating compliance with the Department Environment (DOE) regulations prior to discharge. This study introduces an eco-friendly synthesis method utilizing mangosteen (Garcinia mangostana L.)-leaf aqueous extract fabricate copper oxide (CuO), zinc (ZnO) nanoparticles (NPs), and their nanocomposite (CuO-ZnO NCs). physicochemical properties these nanomaterials were characterized using various analytical tools effectiveness in reducing chemical oxygen demand (COD) was assessed under illumination two types light sources: monochromatic blue- polychromatic white-light emitting diodes (LEDs). CuO-ZnO NCs demonstrated superior performance, lowest energy bandgap (1.61 eV), achieved COD removal efficiency 63.27% ± 0.010 blue LED illumination, surpassing DOE’s discharge limit 100 mg/L. offers cost-effective environmentally friendly synthesizing heterojunction materials, which show great potential as photocatalysts POME permissible levels

Language: Английский

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Enhanced Photocatalytic Degradation and Antimicrobial Activities of Biogenic Co3O4 Nanoparticles Mediated by Fenugreek: Sustainable Strategies

Materials Advances, Journal Year: 2024, Volume and Issue: 5(20), P. 8111 - 8131

Published: Jan. 1, 2024

The present study introduces Trigonella foenum-graecum (TFG, fenugreek)-mediated Co 3 O 4 nanoparticles (NPs) as an innovative solution for eliminating industrial azo dyes from contaminated water.

Language: Английский

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Oxidative stress-induced cytotoxicity of HCC2998 colon carcinoma cells by ZnO nanoparticles synthesized from Calophyllum teysmannii

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Dec. 4, 2024

The field of green synthesis, namely using plant extracts for the production metal nanoparticles, is rapidly gaining traction. Therefore, this study investigated process producing zinc oxide nanoparticles (ZnO NPs) a water-based extract derived from stem bark Calophyllum teysmannii. Notably, first documented utilization particular source. presence distinct Ultraviolet-Visible (UV-Vis) absorption peak at 372 nm provided evidence creation ZnO nanoparticles. X-ray Diffractometer (XRD) and Field Emission Scanning Electron Microscopy (FESEM) investigations indicated that exhibited sizes ranging 31.5 to 59.9 had spherical morphologies. Energy Dispersive (EDX) analysis verified elemental composition whereas Fourier Transform Infrared (FTIR) spectra showed clear peaks, demonstrating their production. FTIR examination C. teysmannii revealed peaks around 3370 cm− 1, indicating phenolic compounds. These chemicals are likely responsible reduction stabilization NPs. high-resolution Photoelectron Spectroscopy (XPS) clearly separate corresponding Zn 2p O 1s, providing confirmation chemical states bonding contexts. Raman 425 cm⁻¹, confirming wurtzite structure. harmful effects on HCC2998 (a kind human colon cancer) Vero type monkey kidney epithelial) cells were evaluated 3-(4, 5-dimethylthiazolyl-2)-2, 5-diphenyltetrazolium bromide (MTT), dichlorodihydrofluorescein diacetate (DCFH-DA), boron-Dipyrromethene (BODIPY) assays. cancer underwent cell death due oxidative stress in dose-dependent manner, as confirmed by microscopic flow cytometry investigations.

Language: Английский

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Biogenic Zinc Oxide Nanoparticles as a Promising Antibacterial Agent: Synthesis and Characterization

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(17), P. 9500 - 9500

Published: Aug. 31, 2024

Nanotechnology has gained popularity in recent years due to its wide-ranging applications within the scientific community. The three main methods for synthesizing nanoparticles are physical, chemical, and biological. However, adverse effects associated with physical chemical have led a growing interest biological methods. Interestingly, green synthesis using plants prominence developing new treatments bacterial infections. Zinc oxide (ZnO NPs) produced environmentally friendly more biocompatible potential as antibacterial agents biomedical field. As result, this review discusses of ZnO NPs, factors influencing optimal synthesis, characterization techniques, activity some plant-mediated NPs. It also provides comprehensive analytical exploration NP biosynthesis, role phytochemical compounds reducing stabilizing agents, mechanism action their properties further highlights challenges prospects innovative research area.

Language: Английский

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Assessing thermal and economic performance of solar dryers in sustainable strategies for bottle gourd and tomato preservation

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Nov. 12, 2024

The traditional approach of open-sun drying is facing contemporary challenges arising from the widespread adoption energy-intensive methods and quality drying. In response, solar dryers have emerged as a sustainable alternative, utilizing thermal energy to effectively dehydrate vegetables. This study investigates performance single-basin, double-slope dryer natural convection for bottle gourds tomatoes, presenting alternative exhibited superior moisture removal efficiency, achieving 94.42% reduction in tomatoes 83.87% gourds, compared Drying rates were significantly enhanced, with maximum air plate temperatures reaching 54.42 °C 63.38 °C, respectively, accelerating dehydration process. Moisture diffusivity analysis revealed marked improvement behavior under drying, values ranging 3.12 × 10

Language: Английский

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Green Synthesis of Silver‐Doped ZnO Nanoparticles From Adiantum venustum D. Don (Pteridaceae): Antimicrobial and Antioxidant Evaluation

Journal of Basic Microbiology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 14, 2025

ABSTRACT One of the main difficulties in nanotechnology is development an environmentally friendly, successful method producing nanoparticles from biological sources. Silver‐doped zinc oxide (Ag‐ZnO NPs), with antibacterial and antioxidant properties, were produced using Adiantum venustum extract as a green technique. Fresh A. plants gathered, then their bioactive elements extracted cold water processed into nanoparticles. The goal was to develop Ag‐ZnO NPs (nanoparticles) for medical applications, especially regard antifungal properties. Pathogens such Fusarium oxysporum , Escherichia coli Staphylococcus aureus tested against synthesized While FTIR spectroscopy revealed functional groups, X‐ray diffraction validated crystalline structure. scanning electron microscope analysis that had average size 30.16 nm irregular shape. Additionally, energy dispersive analysis) confirmed elemental composition. compounds present significantly stabilized Strong activity demonstrated. In particular, this work shows by synthesis could be used biomedical drug delivery therapy.

Language: Английский

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“Green synthesis of zinc oxide nanoparticles and their broad-spectrum antibacterial activity”

Next research., Journal Year: 2025, Volume and Issue: unknown, P. 100164 - 100164

Published: Jan. 1, 2025

Language: Английский

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New approach in effective and reproducible green synthesis of pure ZnO nanoparticles using lemon juice with less solvent and without strong base chemical precursor

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

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Green-synthesized zinc oxide nanoparticles from Garcinia mangostana leaf extract: A promising antibacterial agent for poultry

Veterinary World, Journal Year: 2025, Volume and Issue: unknown, P. 263 - 269

Published: Feb. 1, 2025

Background and Aim: The development of zinc-based antimicrobials has progressed from conventional to nanoparticle (NP) formulations due their enhanced biological properties. This study evaluates the antibacterial efficacy green-synthesized zinc oxide NPs (ZnO-NPs) derived Garcinia mangostana leaf extract against both pathogenic non-pathogenic bacteria relevant poultry health. Materials Methods: Using a completely randomized design, six treatment groups were tested: Positive control (PC) (tetracycline, 2.5 mg/mL), negative (NC) (HCl 0.1 N + distilled water), ZnO-NPs at concentrations 2.5, 5, 7.5, 10 mg/mL. antimicrobial activity was assessed using agar well diffusion method, measuring inhibition zones Escherichia coli, S. Typhimurium, Staphylococcus aureus, Lactobacillus plantarum. Results: positive demonstrated most significant across all bacterial strains. exhibited dose-dependent activity, with maximum recorded as 18.58 mm for E. 17.09 17.41 aureus highest concentration (10 mg/mL). However, L. plantarum less pronounced, zone 9.93 mm. These findings indicate selective toxicity ZnO-NPs, favoring over Conclusion: Green-synthesized G. demonstrate promising properties pathogens. Their action highlights potential applications eco-friendly feed additives improve health mitigate risks. Keywords: antibacterial, green synthesis, nanotechnology, health, nanoparticles.

Language: Английский

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Impact of metal nanoparticles biosynthesized using camel milk on bacterial growth and copper removal from wastewater

Green Processing and Synthesis, Journal Year: 2025, Volume and Issue: 14(1)

Published: Jan. 1, 2025

Abstract This study investigates the potential of zinc oxide (ZnO) and nickel (NiO) nanoparticles (NPs), biosynthesized from camel milk, to combat bacterial resistance enhance heavy metal removal water. The antimicrobial efficacy against various pathogens, including Bacillus subtilis , Staphylococcus aureus Escherichia coli Methicillin-resistant Pseudomonas aeruginosa Candida tropicalis were studied. Characterization NPs was conducted using UV-vis, Fourier transform infrared, X-ray diffraction, transmission electron microscope, atomic force microscopy techniques. Results showed that ZnO exhibited highest activity, with an inhibition zone 16 mm 13 while NiO displayed reduced activity all selected microorganisms. Additionally, demonstrated impressive Cu( ii ) ion rate 96.76% at pH 8.4, a contact time 90 min, 0.5 g·L −1 adsorbent initial concentration 200 mg·L . Adsorption kinetics followed pseudo-second-order model, isotherm data fitting Langmuir model ( Q max = 100.0 mg·g R 2 0.9905). Thermodynamic analysis indicated exothermic process (∆ H ° −4,127.4 J·mol spontaneous physical adsorption. Future research should focus on scaling up biosynthesis for practical therapies wastewater treatment technologies, alongside exploring their long-term environmental impact.

Language: Английский

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