Biogenic Synthesis of Copper Oxide Nanoparticles from Aloe vera: Antibacterial Activity, Molecular Docking, and Photocatalytic Dye Degradation

ACS Omega, Год журнала: 2024, Номер 9(28), С. 30190 - 30204

Опубликована: Июль 1, 2024

Green synthesis methods offer a cost-effective and environmentally friendly approach to producing nanoparticles (NPs), particularly metal-based oxides. This study explores the green of copper oxide using Aloe vera (Aloe barbadensis Miller) leaf extract. The characterization revealed unique sago-shaped morphology by field-emission scanning electron microscopy X-ray diffraction analysis. Distinctive metal–oxygen bonds at 521 601 cm–1 were confirmed Fourier-transform infrared (FT-IR) spectroscopy. Furthermore, UV–visible spectroscopy absorbance 248 nm, suggesting transitions across energy bands varying surface conduction electrons. band gap value indicated presence quantum confinement effects, which probably caused distinctive structure biogenic NPs. Additionally, molecular docking studies carried out against key proteins Salmonella typhi Listeria monocytogenes, namely, listeriolysin O (PDB ID: 4CDB), internalin (InlA) 1O6T), effector protein (SopB) 4DID), YfdX 6A07) AutoDock 4.2. results binding energies S. L. monocytogenes proteins, indicating potential interactions establishing foundation for further in-depth understanding basis underlying observed antibacterial effects in vitro typhi, Klebsiella pneumoniae, Pseudomonas aeruginosa, monocytogenes. Antibacterial activity evaluation yielded impressive results, with CuO NPs displaying significant exhibiting zones inhibition values 13 ± 0.02 15 0.04 mm, respectively. Moreover, demonstrated remarkable photocatalytic efficacy, resulting degradation 77% methylene blue dye when exposed UV irradiation. highlighted green-synthesized derived from A. their morphology, interesting spectroscopic properties, promising activities.

Язык: Английский

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Green synthesis of Ag/CuO and Ag/ TiO2 nanoparticles for enhanced photocatalytic dye degradation, antibacterial, and antifungal properties

Applied Surface Science Advances, Год журнала: 2023, Номер 18, С. 100476 - 100476

Опубликована: Окт. 20, 2023

In the context of synthesizing metal doped oxide nanoparticles (NPs), green synthesis emerges as a reliable, sustainable, environmentally-friendly, and exceptional alternative to more efficient conventional chemical methods. this study, we explored co-precipitation method performed for Caesalpinia pulcherrima (C.pulcherrima) flower extract high percentage hydroxyl functional groups on terpenoid derivatives, reducing encapsulating agents, stability Ag/CuO Ag/ TiO2 NPs. The XRD patterns provided evidence highly crystalline structure monoclinic CuO, tetragonal crystal structure, face-centered cubic Ag metal, obtained improve nanosized 6 8 nm, which structural defects in materials were determined by scanning transmission electron microscopy (SEM TEM), well X-ray photoelectron spectroscopy (XPS) energy-dispersive (EDX) analyze. existence ions (Ag+), Ti4+ ions, Cu2+ CuO caused reduction carbonyl hydroxide groups, thereby facilitating formation nanostructures, demonstrated XPS Fourier transform infrared (FTIR). band gap analysis Ag/TiO2 NPs revealed that they increased catalytic activity methylene blue (MB) dye degradation efficiency achieved 86 94 %, respectively. Comparatively, with has synergistic effect leading effective antimicrobial against P. aeruginosa E. coli infections.

Язык: Английский

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Nano-green: Harnessing the potential of plant extracts for sustainable antimicrobial metallic nanoparticles

Journal of Drug Delivery Science and Technology, Год журнала: 2024, Номер 94, С. 105488 - 105488

Опубликована: Фев. 17, 2024

Язык: Английский

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Unveiling sustainable, greener synthesis strategies and multifaceted applications of copper oxide nanoparticles

Journal of Molecular Structure, Год журнала: 2024, Номер 1305, С. 137788 - 137788

Опубликована: Фев. 11, 2024

Язык: Английский

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Visible light photocatalytic dye degradation, antimicrobial activities of green synthesized Ag/TiO2 nanoparticles

Chemical Physics Impact, Год журнала: 2024, Номер 8, С. 100537 - 100537

Опубликована: Фев. 15, 2024

The co-precipitation approach was used in this study to synthesize Ag/TiO2 nanoparticles (NPs) using an extract of the flowers from C. pulcherrima. As a reducing agent and stabilizer during synthesis process, flower performed dual function. surface plasmon resonance diffuse reflectance spectroscopy spectrum provided assurance that Ag+, Ti4+ ions were significantly reduced. bandgap NPs revealed they are suitable for optical catalytic applications. analyzed X-ray diffraction (XRD) assess their size crystal structure. Through scanning transmission electron microscopy (SEM TEM), shape changes studied. Energy-dispersive (EDX) analysis employed investigate elements' chemical composition produced NPs. A Fourier transform infrared (FTIR) carried out identify functional groups might be present plant involved reduction, stabilization, bonding processes. photocatalytic disintegration hazardous organic dye pollutant methylene blue studied 40 minutes while being exposed visible light. create efficiency degradation rate 94%. Additionally, then antimicrobial capacity assessed, it discovered most effective against infections P. aeruginosa E. coli.

Язык: Английский

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Blood-liquid extract inhibits bacteria through diffusion-mediated nano-CuO

Nano-Structures & Nano-Objects, Год журнала: 2024, Номер 37, С. 101105 - 101105

Опубликована: Фев. 1, 2024

Язык: Английский

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Investigation of antibacterial, antioxidant, cytotoxicity and photocatalytic dye degradation activity of green synthesized copper oxide nanoparticles using Ceropegia debilis plant extract

Clean Technologies and Environmental Policy, Год журнала: 2024, Номер unknown

Опубликована: Фев. 28, 2024

Язык: Английский

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Antibacterial Properties of Copper Oxide Nanoparticles (Review)

International Journal of Molecular Sciences, Год журнала: 2024, Номер 25(21), С. 11563 - 11563

Опубликована: Окт. 28, 2024

The use of metal and oxide nanoparticles is frequently regarded as a potential solution to the issue bacterial antibiotic resistance. Among proposed range with antibacterial properties, copper are particular interest. Although properties have been known for considerable period time, studies on effects nanomaterials respect biological systems attracted attention in recent years. This review presents summary nanoparticles, mechanisms by which effect realized, key reported methods modifying these improve their activity. A comparative analysis effectiveness presented depending type microorganism, shape Gram classification bacteria based data from published sources. In addition, addresses activities including antifungal cytotoxic well “antioxidant” According conducted literature data, it can be concluded that significant bacteriostatic wide microorganisms and, some cases, contribute inhibition fungal growth. At same sensitivity Gram-positive was often higher than Gram-negative bacteria.

Язык: Английский

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Biogenic nanoparticles for managing salinity stress-related crop and environmental risks: realistic applications and challenges

Discover Sustainability, Год журнала: 2025, Номер 6(1)

Опубликована: Фев. 19, 2025

Язык: Английский

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Green Synthesis and Characterization of Ag/CuO Nanoparticles: Exploring Their Antifungal, Antimicrobial, and Cytotoxic Properties

Environmental Technology & Innovation, Год журнала: 2025, Номер unknown, С. 104147 - 104147

Опубликована: Март 1, 2025

Язык: Английский

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