The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 958, P. 177884 - 177884
Published: Dec. 7, 2024
Language: Английский
Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 117 - 144
Published: Jan. 1, 2025
Language: Английский
Citations
0
Pharmaceuticals, Journal Year: 2025, Volume and Issue: 18(4), P. 542 - 542
Published: April 8, 2025
Background/Objectives: Iron deficiency anemia remains a primary global health concern, affecting millions worldwide. Despite the widespread availability of iron supplements, their efficacy is often hindered by poor bioavailability and adverse gastrointestinal effects. This study explores potential probiotics to enhance Fe3O4 NPs through probiotic-mediated mechanisms. Methods: Lactobacillus fermentum, rhamnosus, plantarum were utilized investigate interactions with NPs, synthesized via co-precipitation characterized using transmission electron microscopy, scanning Fourier transform infrared spectroscopy, X-ray diffraction. Results: The results indicated that adhere nanoparticle surface, L. fermentum exhibiting highest adhesion internalization capacity, leading significant increase in 4-hydroxyphenylacetic acid (4-HPLA) production (11.73 ± 0.09 mg/mL at 24 h, p < 0.05). Spectroscopic analyses further revealed probiotic metabolism facilitates oxidation Fe2O3. Additionally, nanoparticle-treated cultures demonstrated enhanced bacterial viability metabolic activity, highlighting synergistic effect between nanoparticles. Conclusions: These findings provide compelling evidence for probiotic-assisted supplementation as promising strategy while mitigating side effects conventional supplements.
Language: Английский
Citations
0
Journal of Polymers and the Environment, Journal Year: 2024, Volume and Issue: 32(11), P. 6080 - 6095
Published: July 18, 2024
Language: Английский
Citations
3
BMC Microbiology, Journal Year: 2024, Volume and Issue: 24(1)
Published: Dec. 23, 2024
Antimicrobial resistance (AMR) presents a serious threat to health, highlighting the urgent need for more effective antimicrobial agents with innovative mechanisms of action. Nanotechnology offers promising solutions by enabling creation nanoparticles (NPs) antibacterial properties. This study aimed explore antibacterial, anti-biofilm, and anti-virulence effects eco-friendly synthesized α-Fe₂O₃ (α-Fe₂O₃-NPs) against pathogenic bacteria. The α-Fe2O3-NPs were using green synthesis method that involved Bacillus sp. GMS10, iron sulfate as precursor. NPs characterized through ultraviolet-visible (UV-Vis) spectroscopy, Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive X-ray Spectroscopy (EDX), Dynamic Light Scattering (DLS), Zeta Potential Analysis, Diffraction (XRD), Fourier Transform Infrared (FT-IR). Their activity was assessed Gram-positive Gram-negative also evaluated effect on bacterial cell membrane disruption, biofilm formation, efflux pump inhibition, swarming motility. UV-Visible spectrum showed peak at 228 nm, indicating plasmon absorbance α-Fe2O3-NPs. FESEM revealed spherical (~ 30 nm), DLS confirmed hydrodynamic size 36.3 nm zeta potential -25.1 mV, good stability. XRD identified rhombohedral α-Fe2O3 phase, FTIR detected O-H, C-H, C = O, Fe-O functional groups, suggesting organic capping Antibacterial assays demonstrated had MIC values ranging from 0.625 5 µg/mL MBC between 20 µg/mL, strong significantly increased permeability, inhibited formation in S. aureus E. coli, disrupted pumps SA-1199B (a fluoroquinolone-resistant strain overexpressing norA). Additionally, P. aeruginosa bacteria-synthesized significant activity, particularly bacteria, exhibited inhibiting offering strategy address AMR. Focus further evaluating their therapeutic clinical settings conducting comprehensive assessments safety profiles ensure applicability medical treatments. Not applicable.
Language: Английский
Citations
3
MRS Bulletin, Journal Year: 2024, Volume and Issue: 49(4), P. 340 - 351
Published: March 13, 2024
Language: Английский
Citations
2
ACS Omega, Journal Year: 2024, Volume and Issue: 9(28), P. 30015 - 30034
Published: July 5, 2024
Sensors are widely used owing to their advantages including excellent sensing performance, user-friendliness, portability, rapid response, high sensitivity, and specificity. Sensor technologies have been expanded rapidly in recent years offer many applications medicine, pharmaceuticals, the environment, food safety, national security. Various nanomaterial-based sensors developed for exciting features, such as a powerful absorption band visible region, electrical conductivity, good mechanical properties. Natural synthetic coumarin derivatives attracting attention development of functional polymers polymeric networks unique biological, optical, photochemical They most abundant organic molecules medicine because biological pharmacological impacts. Furthermore, can modulate signaling pathways that affect various cellular processes. This review covers discovery coumarins derivatives, integration sensors, advances coumarins. also explains how work, types, pros cons, sensor studies detection years.
Language: Английский
Citations
2
Sustainability, Journal Year: 2024, Volume and Issue: 16(15), P. 6278 - 6278
Published: July 23, 2024
Conventional wet chemical methods for the synthesis of superparamagnetic magnetite nanoparticles (MNPs) are energy-intensive and environmentally unsustainable. Green using bacteria is a less-explored approach to MNP production. Large-scale biosynthesis MNPs has heretofore been conducted extremophilic that exhibit low growth rates and/or require strict temperature control. However, decrease in material energy costs would make such bioprocesses more sustainable. In this study, Shewanella putrefaciens CN-32, an iron-reducing bacterium, was employed reduce amorphous iron oxyhydroxide synthesize non-growth medium at ambient pressure. The plain saline solution (0.85% NaCl) avoid impurities products. X-ray diffraction transmission electron microscopy indicated reduction products were with pseudo-spherical shape 6 ± 2 nm average size. Magnetometry showed particles maximum saturation magnetization 73.8 emu/g, which comparable obtained via methods. Using less than quarter raw materials typical co-precipitation method, we yield 3.473 g/L (>5-fold increase). These findings demonstrate our simple ecofriendly process can help overcome current barriers large-scale high-purity magnetic nanopowders.
Language: Английский
Citations
2
ACS Applied Bio Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 2, 2024
Biologically mediated nanoparticle (NP) synthesis offers a reliable and sustainable alternative route for metal NP production. Compared with conventional chemical physical production methods that require hazardous materials considerable energy expenditure, some microorganisms can reduce ions into NPs during standard metabolic processes. However, to be considered feasible commercial option, the properties inherent activity of bio-NPs still need significantly improved. In this work, we present an Escherichia coli-mediated method catalytically active Pd–Fe NPs. The produced biogenic varying Fe content were characterized using complementary analytical techniques assess their size, composition, structural properties. addition, catalytic performance was assessed by standardized reactions. We demonstrate combination Pd leads synergistic effects enhance make excellent potential substitutes currently used catalysts. Briefly, apparent rates model reaction 4-nitrophenol reduction 4-aminophenol catalyzed Pd-based nanoparticles as high 0.1312 min–1 bimetallic NPs, which is far superior monometallic counterparts. This study provides strategy multimetallic common microbial It emphasizes efficient catalysts hydrogenation reactions, offering environmentally friendly various applications, including wastewater treatment fine chemicals.
Language: Английский
Citations
1
Comprehensive analytical chemistry, Journal Year: 2024, Volume and Issue: unknown, P. 461 - 491
Published: Jan. 1, 2024
Language: Английский
Citations
0
bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown
Published: March 18, 2024
ABSTRACT Given the enormous potential of metal nanomaterials, their sustainable production is paramount importance and a key area focus worldwide. In this regard, bacteria are highly valued because for rapid, cost-effective eco-friendly nanomaterial synthesis. study, culture supernatants Bacillus cereus Curvularia sp isolated from heavy rich Titanium industry effluent effectively synthesised cobalt copper nanoparticles narrow size range at room temperature, neutral pH static conditions within 2-7 days. This was verified by visible colour changes, UV-Vis spectroscopy FT-IR. The UV-Visible spectra biosynthesized exhibited sharp peaks 341 342 nm. suggested that were not only small but also had distribution, feature rarely reported in biosynthesis studies. Furthermore, our approach conducted temperature using cell-free supernatant, eliminating need additional heating or cooling, minimising processing thus making process energy-efficient, cost effective sustainable. first report on monodisperse microbes novel extreme environment. Graphical abstract
Language: Английский
Citations
0