Silver CVD and ALD Precursors: Synthesis, Properties, and Application in Deposition Processes DOI Creative Commons
E. S. Vikulova, S. I. Dorovskikh, Tamara V. Basova

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(23), P. 5705 - 5705

Published: Dec. 3, 2024

This review summarized the developments in field of volatile silver complexes, which can serve as precursors gas-transport reactions for production thin films and metal nanoparticles via chemical vapor deposition (CVD) atomic layer (ALD). Silver-based are widely used various high-tech fields, including medicine. For effective use CVD ALD processes, properties must be balanced terms volatility, thermal stability, reactivity. In this review, we focus on synthesis comprehensive analysis structural characteristics most promising classes well organometallic compounds. Following specifics chemistry, some features their selection, several key directions to improving efficiency material also discussed.

Language: Английский

Biogenesis, characterization, and applications of Spirulina selenium nanoparticles DOI Creative Commons
Asmaa S. Yassein, Rokaia B. Elamary,

Eman A. Alwaleed

et al.

Microbial Cell Factories, Journal Year: 2025, Volume and Issue: 24(1)

Published: Feb. 7, 2025

Abstract Background Nowadays, researchers are attracted to the phyco-synthesis of selenium nanoparticles (SeNPs) for biotechnological and medical applications as they possess many advantages such safety, nutritional value, easy biodegradation than gold, copper, silver nanoparticles. Spirulina platensis is preferred microalgae SeNPs synthesis because it contains compounds that increase their stability making them fit biomedical treatments. Results The biosynthesized (SP-SeNPs) were spherical crystalline, with a diameter 65 nm net charge -16.7 mV. Furthermore, surrounded by active groups responsible stability. DPPH radical scavenging test assessed antioxidant efficacy SP-SeNPs exposed inhibition 79.234% at 100 µM dosage. ABTS H 2 O assay dose-dependent recording IC50 50.69 116.18 µg/ml, respectively. antibacterial was investigated against 13 G-negative & G-positive bacteria. study demonstrated had antibiofilm efficiencies tested strains MBC 286–333 µg/ml. highest percentages biofilm recorded Bacillus subtilis Klebsiella pneumoniae, ratios 78.8 69.9%, prepared SP-SeNPS efficiently suppressed fungi growth MIC (350 µg/ml) MFCs (480–950 µg/ml). Most notably, biogenic effectively extended clot formation period 170.4 S prothrombin time (PT) 195.6 activated partial thromboplastin (aPTT). reduced cell viability breast adenocarcinoma (MCF-7) ovarian cancer (SKOV-3) lines percentage 17.6009% 14.9484% concentration ug/ml, Moreover, could alleviate inflammation in RAW 264.7 macrophages reduction 8.82% Nitric oxide concentration. Conclusion investigation findings reveal hopeful antimicrobial, anti-tumor, anticoagulant, antioxidant, anti-inflammatory factor can be applied cures.

Language: Английский

Citations

1
Rapid Degradation of Organic Dyes by Nanostructured Gd2O3 Microspheres DOI Creative Commons
Carlos R. Michel

Applied Nano, Journal Year: 2025, Volume and Issue: 6(1), P. 1 - 1

Published: Jan. 13, 2025

Pollution of freshwater by synthetic organic dyes is a major concern due to their high toxicity and mutagenicity. In this study, the degradation Congo red (CR) malachite green (MG) was investigated using nanostructured Gd2O3. It prepared coprecipitation method, gadolinium nitrate concentrated formic acid, with subsequent calcination at 600 °C. Its morphology corresponds hollow porous microspheres size between 0.5 7.5 μm. The optical bandgap energy determined Tauc giving 4.8 eV. evaluated UV-vis spectroscopy, which revealed that dissociative adsorption (in dark) played key role. explained cleavage fragmentation molecules hydroxyl radicals (•OH), superoxide (•O2−) other reactive oxygen species (ROS) produced on surface For CR, percentage ~56%, through adsorption, while UV light photocatalysis increased it ~65%. MG, these values were ~78% ~91%, respectively. difference in percentages terms isoelectric point solid (IEPS) Gd2O3 electrical charge dyes. FTIR XPS spectra provided evidence role ROS dye degradation.

Language: Английский

Citations

0
Analysis of Tetracycline Modification Based on g-C3N4 Photocatalytic Degradation DOI Creative Commons
Jinghang Li, Qi Shi, Chaoyu Song

et al.

Inorganics, Journal Year: 2025, Volume and Issue: 13(3), P. 77 - 77

Published: March 7, 2025

To address challenges in antibiotic wastewater treatment, we synthesized a series of graphitic carbon nitride (g-C3N4)-based photocatalysts (BCN, PCN, TCN, BTCN, and TCNE-modified PTCN) via defect engineering. TCNE modification disrupted the triazine ring-bridging amino network PTCN, forming porous structure with enhanced specific surface area validated by SEM/TEM while retaining graphene-like framework confirmed XRD/FTIR. Photoluminescence (PL) analysis revealed prolonged photogenerated carrier lifetime improved separation efficiency achieving 89.10% degradation chlortetracycline hydrochloride under visible light—1.65-fold higher than pristine g-C3N4. Mechanistic studies identified superoxide radicals (•O2−) as dominant active species, generated O2 activation at sites efficient electron-hole utilization. Optimized conditions enabled PTCN to maintain high activity across broad pH range retain 82.59% after five cycles. This work advances defect-engineered photocatalyst design for adaptable, high-performance degradation, offering practical insights remediation.

Language: Английский

Citations

0
Microbial Nanoparticles in Biological Plant Protection DOI Open Access
Tomasz Maciąg, Edmund Kozieł, Małgorzata Dudkiewicz

et al.

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(6), P. 2492 - 2492

Published: March 11, 2025

Nanoparticles are small structures that differ in terms of their shape and composition; high surface-to-volume ratio is responsible for unique properties make them perfect mediators the delivery substances. do not only include metallic spheres but also complex polysaccharides capsule viruses or bacterial protein complexes (which can be considered bionanoparticles), which 1–100 nm size. Although nanoparticles most widely studied from medical perspectives, potential applications almost limitless. One such promising use functional plant protection against diseases. precise decreases need other chemical compounds, thanks to increased product stability a target site, production often burdened by large quantities toxic wastes. This problem limited if we apply bioreactor green synthesis method, includes with microorganisms. Bacteria produce internally, externally, producing metabolites used nanoparticle directly, e.g., surfactants, indirectly as reducing agents metal production. Regardless source nanoparticles, they processes disease/pathogen detection disease suppression. The endless variety materials possible modifications subjected makes it impossible predict how will future. Nevertheless, this study, would like turn attention fact although viewed synthetic structures, ever-present microbial world play an important part intermicrobial interactions. As usefulness has been tested over years co-evolution, may useful look future directions fascinating technology.

Language: Английский

Citations

0
Novel experimental and theoretical study on the synthesis and use of microalgae-derived silver nanomaterials for water purification DOI Creative Commons
Agnieszka Sidorowicz, Federico Atzori,

Federico Zedda

et al.

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 69, P. 106831 - 106831

Published: Dec. 24, 2024

Language: Английский

Citations

2
Novel Synthesis of Polystyrenesulfonate@AC Based on Olive Tree Leaves Biomass for the Photo-Degradation of Methylene Blue from Aqueous Solution DOI Open Access
Ibrahim Hotan Alsohaimi

Polymers, Journal Year: 2024, Volume and Issue: 16(23), P. 3321 - 3321

Published: Nov. 27, 2024

Water pollution poses significant environmental challenges, particularly from dyes used in various industrial processes. Effective removal methods are essential to mitigate their impact on aquatic environments. Activated carbon (AC) is widely for its adsorption properties, and further modifications can enhance efficiency. In this study, we developed polystyrene sulfonate-modified activated (AC@PSS) using a facile efficient method improve the photo-degradation of methylene blue (MB) The modification enhanced carbon’s surface features adsorption, improving photocatalytic activity. photocatalysts were characterized XRD, SEM, FTIR, TGA. Based Tauc’s equation, band gap value AC@PSS was 4.0 eV. efficacy catalyst assessed by studying degradation MB dye under UV-rich solar irradiation. influence variables such as pH (2–12), reaction time (0–160 min), dosage (20–80 mg), concentration (10–300 mg/L) investigated. demonstrated impressive 98% 160 min at 11, temperature 25 °C, dose 60 mg, initial content 10 mg/L. superior performance could be due effective separation photogenerated electron holes. Accordingly, affected photo-produced radical •OH. Finally, conclude that synthesizing highly dye.

Language: Английский

Citations

0
Silver CVD and ALD Precursors: Synthesis, Properties, and Application in Deposition Processes DOI Creative Commons
E. S. Vikulova, S. I. Dorovskikh, Tamara V. Basova

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(23), P. 5705 - 5705

Published: Dec. 3, 2024

This review summarized the developments in field of volatile silver complexes, which can serve as precursors gas-transport reactions for production thin films and metal nanoparticles via chemical vapor deposition (CVD) atomic layer (ALD). Silver-based are widely used various high-tech fields, including medicine. For effective use CVD ALD processes, properties must be balanced terms volatility, thermal stability, reactivity. In this review, we focus on synthesis comprehensive analysis structural characteristics most promising classes well organometallic compounds. Following specifics chemistry, some features their selection, several key directions to improving efficiency material also discussed.

Language: Английский

Citations

0