Dual-functional copper oxide nanofluids for transformer: Synergistic enhancement of antimicrobial and insulating properties DOI Creative Commons

Haidan Lin,

Lijie Xu,

Qunying Yu

et al.

AIP Advances, Journal Year: 2025, Volume and Issue: 15(5)

Published: May 1, 2025

Oil in transformer insulation systems critically safeguards grids, yet microbial contamination catastrophically compromises dielectric integrity, threatening grid resilience worldwide. To address this dual challenge of biocontamination and degradation, we engineered bifunctional copper oxide nanofluids (CuO NFs) through crystallographic tailoring surface charge optimization. Two dominant actinomycetes (Mycoplana Rothia), isolated from operational transformers, achieved up to 98.19% 96.32% inactivation rates when exposed CuO NFs, coupled with a 1.62-fold increase AC breakdown voltage compared base oil, owing the designed monoclinic-phase nanoparticles (+20.14 ± 1.5 mV) that disrupted integrity via electrostatic adhesion reactive oxygen species (ROS) generation, which is first demonstration nanoscale ROS-mediated antimicrobial mechanisms oil-immersed systems. This work provides robust strategy for development NFs mitigate enhance insulating properties.

Language: Английский

A Comprehensive Review on Exploring the Potential of Phytochemicals and Biogenic Nanoparticles for the Treatment of Antimicrobial-Resistant Pathogenic Bacteria DOI

Shibasini Murugan,

T. Senthilvelan,

Mani Govindasamy

et al.

Current Microbiology, Journal Year: 2025, Volume and Issue: 82(2)

Published: Jan. 18, 2025

Language: Английский

Citations

1
Pioneering study of Egyptian Neem and Jojoba extracts with molecular docking combat hospital multidrug resistant bacteria DOI
Toka Khairy, Dina H. Amin, Hanaa M. Salama

et al.

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

Published: Jan. 8, 2025

Language: Английский

Citations

0
Sustainable synthesis of copper oxide nanoparticles with antibacterial activity using siderophores produced by Pseudomonas sp. ABC1 DOI Creative Commons

Walter Cañón Mancisidor,

Bárbara Rodríguez Escalona,

Katherine Delgado Vargas

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 11, 2025

Abstract Copper oxide nanoparticles (CuO NPs) have significant applications in bioscience and biomedicine. Numerous physical chemical methods exist for synthesizing CuO NPs; however, the biogenic synthesis of using bacterial metabolites offers a sustainable approach to obtaining metal with specific shapes sizes. In this study, we produced NPs through production system based on secondary Pseudomonas sp. ABC1. We characterized generated various techniques evaluated their application as antibacterial agents. The crystalline structures were confirmed by X-ray diffraction, which showed diffraction planes corresponding pattern. Energy-dispersive spectroscopy composition NPs. Scanning electron microscopy images displayed spherical particles arranged independently, an average size 19 nm. exhibited inhibitory effect Escherichia coli Staphylococcus aureus, resulting growth inhibition after 24 hours incubation. Our results underscore potential siderophores activity.

Language: Английский

Citations

0
Exploring the Antimicrobial Potential of Azadirachta Indica Against Pseudomonas Aeruginosa a Natural Approach to Combat Drug Resistance DOI
Dilbar Hussain,

A Hassan,

Bushra Rehman

et al.

Indus journal of bioscience research., Journal Year: 2025, Volume and Issue: 3(2), P. 316 - 322

Published: Feb. 25, 2025

Pseudomonas aeruginosa is a multidrug-resistant pathogen known for its ability to form biofilms, leading chronic infections and reduced antibiotic effectiveness. Natural plant extracts, such as neem (Azadirachta indica), have shown promising antimicrobial properties. This study evaluates the antibacterial anti-biofilm activities of extracts against P. aeruginosa. Phytochemical screening was conducted on ethanol methanol identify bioactive compounds. Antimicrobial susceptibility testing performed using agar well diffusion method, while minimum inhibitory concentration (MIC) bactericidal (MBC) were determined. Biofilm inhibition assessed crystal violet assay at varying extract concentrations (50, 100, 250, 500 µg/mL). analysis confirmed presence flavonoids, phenolic compounds, alkaloids, tannins, saponins, terpenoids, with showing higher concentrations. Neem exhibited dose-dependent activity, highest zone 22 mm µg/mL an MIC 100 µg/mL. The MBC determined be 250 µg/mL, confirming neem’s biofilm showed that formation by 20% 50 85% indicating strong anti-adherence activity. Statistical significant differences (p < 0.05) between different concentrations, doses demonstrating stronger inhibition. demonstrated potent effects aeruginosa, results comparable some conventional antibiotics. compounds flavonoids contributes efficacy. Given increasing challenge resistance, may serve potential natural agent or adjunct therapy.

Language: Английский

Citations

0
Valorization of noni-leaf tea as a by-product of nanofiltration for the green synthesis of copper oxide nanoparticles with improved antimicrobial properties DOI
Édipo da Silva Almeida, Juliana De Gregori da Rocha, Débora de Olíveira

et al.

Materials Science and Engineering B, Journal Year: 2025, Volume and Issue: 317, P. 118172 - 118172

Published: Feb. 28, 2025

Language: Английский

Citations

0
Neutering Pathogens through Green Synthesized Nanoparticles DOI
Mahreen Fatima, Amjad Islam Aqib,

Habiba Faraz

et al.

Microbial Pathogenesis, Journal Year: 2025, Volume and Issue: unknown, P. 107495 - 107495

Published: March 1, 2025

Language: Английский

Citations

0
The Composition of the Dispersion Medium Determines the Antibacterial Properties of Copper (II) Oxide Nanoparticles Against Escherichia coli Bacteria DOI Creative Commons
Olga V. Zakharova, Alexander Gusev, Peter A. Baranchikov

et al.

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(6), P. 469 - 469

Published: March 20, 2025

Copper (II) oxide nanoparticles (CuO NPs) attract much attention as a promising antimicrobial agent. We studied the antibacterial properties of three types CuO NPs against Escherichia coli bacteria: flake-shaped particles with diameter 50–200 nm and thickness 10–20 (CuO-CD synthesized by chemical deposition), spherical size 20–90 (CuO-EE obtained electrical explosion), rod-shaped length 100–200 30 × 70 (CuO-CS commercial sample). tested how shape, size, concentration NPs, composition dispersion medium affected NPs. prepared dispersions based on distilled water, 0.9% NaCl solution, LB broth Lennox used Triton X-100 sodium dodecyl sulfate (SDS) stabilizers. The was 1–100 mg L−1. showed that stabilizer type had greatest influence effects observed maximum effect for all NP dispersed in water without stabilizer, well SDS stabilizer. inhibition culture growth under CuO-EE (by 30%) 1.3–1.8 times depending particles). In saline were minimal; some cases, even promoted bacterial growth. increased but decreased them water. Finally, among particle types, CuO-CS turned out to be most bactericidal, which is probably due their morphology small diameter. At same time, aggregation colloidal systems we did not have linear action properties. These results can development coatings preparations achieve efficiency, taking into account expected conditions use.

Language: Английский

Citations

0
The dual role of bio-inspired palladium nanoparticles in antibacterial action and wound healing: An in vitro and in vivo study DOI Creative Commons

Ashwini Singhal,

Gyan Prakash Meghwal,

Apurva Jaiswal

et al.

Journal of King Saud University - Science, Journal Year: 2025, Volume and Issue: 0, P. 1 - 12

Published: April 18, 2025

Language: Английский

Citations

0
Biogenic Copper and Copper Oxide Nanoparticles to Combat Multidrug-Resistant Staphylococcus aureus: Green Synthesis, Mechanisms, Resistance, and Future Perspectives DOI Creative Commons
Gamal M. El-Sherbiny,

Mohamed Shehata,

Mohamed H. Kalaba

et al.

Biotechnology Reports, Journal Year: 2025, Volume and Issue: unknown, P. e00896 - e00896

Published: May 1, 2025

Language: Английский

Citations

0
Dual-functional copper oxide nanofluids for transformer: Synergistic enhancement of antimicrobial and insulating properties DOI Creative Commons

Haidan Lin,

Lijie Xu,

Qunying Yu

et al.

AIP Advances, Journal Year: 2025, Volume and Issue: 15(5)

Published: May 1, 2025

Oil in transformer insulation systems critically safeguards grids, yet microbial contamination catastrophically compromises dielectric integrity, threatening grid resilience worldwide. To address this dual challenge of biocontamination and degradation, we engineered bifunctional copper oxide nanofluids (CuO NFs) through crystallographic tailoring surface charge optimization. Two dominant actinomycetes (Mycoplana Rothia), isolated from operational transformers, achieved up to 98.19% 96.32% inactivation rates when exposed CuO NFs, coupled with a 1.62-fold increase AC breakdown voltage compared base oil, owing the designed monoclinic-phase nanoparticles (+20.14 ± 1.5 mV) that disrupted integrity via electrostatic adhesion reactive oxygen species (ROS) generation, which is first demonstration nanoscale ROS-mediated antimicrobial mechanisms oil-immersed systems. This work provides robust strategy for development NFs mitigate enhance insulating properties.

Language: Английский

Citations

0