Synthesis and improved optical, electrical, and dielectric properties of PEO/PVA/CuCo2O4 nanocomposites

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Авг. 15, 2024

This study investigates the development of novel nanocomposite films based on a blend polyethylene oxide (PEO) and polyvinyl alcohol (PVA) loaded with varying weight percentages copper cobaltite nanoparticles (CuCo2O4 NPs). The primary objective was to fabricate these nanocomposites using solution casting technique explore influence CuCo2O4 content their structural, optical, electrical, dielectric properties. Spinel-type NPs were synthesized via hydrothermal method incorporated into PEO/PVA blend. X-ray diffraction (XRD) analysis revealed transformation polymer matrix towards an amorphous state increasing content. UV–Vis spectroscopy studies demonstrated decrease in both direct indirect band gaps nanocomposites, suggesting potential applications optoelectronic devices. Impedance measurements significant enhancement ionic conductivity (three orders magnitude higher than pristine blend) for film containing 1.8 wt% CuCo2O4. real permittivity (ε′) imaginary (ε″) exhibited frequency due interplay various polarization mechanisms. Notably, incorporating led remarkable improvement energy density compared Additionally, barrier observed. These findings demonstrate successful fabrication PEO/PVA-CuCo2O4 enhanced observed improvements suggest promising materials storage devices potentially like light-emitting diodes.

Язык: Английский

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Micro and nanoplastics pollution: Sources, distribution, uptake in plants, toxicological effects, and innovative remediation strategies for environmental sustainability

Plant Physiology and Biochemistry, Год журнала: 2024, Номер 213, С. 108795 - 108795

Опубликована: Июнь 5, 2024

Язык: Английский

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Nanoprimers in sustainable seed treatment: Molecular insights into abiotic-biotic stress tolerance mechanisms for enhancing germination and improved crop productivity

The Science of The Total Environment, Год журнала: 2024, Номер 951, С. 175118 - 175118

Опубликована: Авг. 2, 2024

Язык: Английский

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Hollow Mesoporous Silica Nanoparticles as a New Nanoscale Resistance Inducer for Fusarium Wilt Control: Size Effects and Mechanism of Action

International Journal of Molecular Sciences, Год журнала: 2024, Номер 25(8), С. 4514 - 4514

Опубликована: Апрель 20, 2024

In agriculture, soil-borne fungal pathogens, especially Fusarium oxysporum strains, are posing a serious threat to efforts achieve global food security. the search for safer agrochemicals, silica nanoparticles (SiO2NPs) have recently been proposed as new tool alleviate pathogen damage including wilt. Hollow mesoporous (HMSNs), unique class of SiO2NPs, widely accepted desirable carriers pesticides. However, their roles in enhancing disease resistance plants and specific mechanism remain unknown. this study, three sizes HMSNs (19, 96, 406 nm HMSNs-19, HMSNs-96, HMSNs-406, respectively) were synthesized characterized determine effects on seed germination, seedling growth, f. sp. phaseoli (FOP) suppression. The exhibited no side cowpea germination growth at concentrations ranging from 100 1500 mg/L. inhibitory FOP mycelial very weak, showing inhibition ratios less than 20% even 2000 Foliar application HMSNs, however, was demonstrated reduce severity roots size- concentration-dependent manner. low concentration mg/L, well HMSNs-19 high 1000 observed little effect alleviating incidence. HMSNs-406 most effective an up 40.00% decline with significant growth-promoting plants. Moreover, foliar (1000 mg/L) increased salicylic acid (SA) content by 4.3-fold, expression levels SA marker genes PR-1 (by 1.97-fold) PR-5 9.38-fold), its receptor gene NPR-1 1.62-fold), compared infected control Meanwhile, another resistance-related PAL also upregulated 8.54-fold. Three defense-responsive enzymes POD, PAL, PPO involved HMSNs-enhanced roots, varying degrees reduction activity. These results provide substantial evidence that exert wilt suppression activating SA-dependent SAR (systemic acquired resistance) responses rather directly suppressing growth. Overall, first time, our indicate role potent inducer serve low-cost, highly efficient, safe sustainable alternative plant protection.

Язык: Английский

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Ammonia: An Emerging Gasotransmitter in Plant Growth and Response to Environmental Stress

Journal of Plant Growth Regulation, Год журнала: 2024, Номер 43(11), С. 3958 - 3970

Опубликована: Июнь 26, 2024

Язык: Английский

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Frontiers in Bacterial-Based Green Synthesized Nanoparticles (NPs): A Sustainable Strategy for Combating Infectious Plant Pathogens

Biocatalysis and Agricultural Biotechnology, Год журнала: 2024, Номер 60, С. 103293 - 103293

Опубликована: Июнь 27, 2024

Язык: Английский

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An updated review on green synthesized nanoparticles to control insect pests

Journal of Pest Science, Год журнала: 2025, Номер unknown

Опубликована: Фев. 9, 2025

Язык: Английский

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Green synthesis of silver nanoparticles using Nothapodytes foetida leaf extract: Optical, antibacterial and anticancer activities

Next Nanotechnology, Год журнала: 2025, Номер 7, С. 100162 - 100162

Опубликована: Янв. 1, 2025

Язык: Английский

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Green Synthesis of Silver Nanoparticles Using Sudanese Candida parapsilosis: A Sustainable Approach to Combat Antimicrobial Resistance

Опубликована: Апрель 9, 2025

Background:Antimicrobial resistance (AMR) is a critical global health challenge, particularly in Sudan, where the overuse and misuse of antibiotics have driven rise multidrug-resistant (MDR) pathogens. Conventional antimicrobial strategies often fall short due to rapid development limited efficacy, highlighting need for novel approaches. Nanotechnology offers promising alternatives, with silver nanoparticles (AgNPs) demonstrating potent broad-spectrum activity. This study aims develop an eco-friendly synthesis AgNPs using Candida parapsilosis (C. parapsilosis), untapped yeast strain isolated from Sudanese soil, combat AMR. Results:Biosynthesis C. was successfully confirmed through UV-Vis spectroscopy, X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), revealing well-defined nanoparticles. The biosynthesized exhibited strong antibacterial activity against both ATCC reference strains MDR clinical isolates Gram-positive Gram-negative bacteria, inhibition zones increasing concentration-dependent manner. At optimal concentrations, reached 29 mm Pseudomonas aeruginosa (P.aeruginosa) (ATCC 27853), while Salmonella typhi (S. typhi) (24.5 ± 0.58 mm) Escherichia coli (E. coli) (23.8 0.79 significant susceptibility. Minimum inhibitory concentration (MIC) minimum bactericidal (MBC) assays demonstrated activity, E. Klebsiella pneumoniae (K. pneumoniae) at 0.3125 mg/mL. Furthermore, synergistically enhanced efficacy conventional species- antibiotic-dependent strongest synergy observed Enterococcus faecalis (E. faecalis) (up 9.84-fold Colistin) Acinetobacter baumannii (A. baumannii) 5.11-fold Ceftazidime), suggesting that AgNP-enhanced antibiotic varies depending on bacterial species, nanoparticle method, type. Conclusions:This presents sustainable approach tackling AMR by leveraging green AgNPs. findings underscore potential as effective agent, independently combination antibiotics, By integrating microbiology nanotechnology, this research cost-effective environmentally friendly solution mitigation. These provide foundation future applications public interventions, resource-limited settings.

Язык: Английский

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Unlocking the potential of titanium dioxide nanoparticles: an insight into green synthesis, optimizations, characterizations, and multifunctional applications

Microbial Cell Factories, Год журнала: 2024, Номер 23(1)

Опубликована: Дек. 23, 2024

This comprehensive review explores the emergence of titanium dioxide nanoparticles (TiO

Язык: Английский

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