Natural Products and Bioprospecting, Journal Year: 2024, Volume and Issue: 14(1)
Published: Nov. 30, 2024
Language: Английский
Natural Products and Bioprospecting, Journal Year: 2024, Volume and Issue: 14(1)
Published: Nov. 30, 2024
Language: Английский
Antibiotics, Journal Year: 2025, Volume and Issue: 14(1), P. 46 - 46
Published: Jan. 7, 2025
Background/Objectives: This study aims to characterize antibiotic resistance (AR) and virulence markers in Salmonella spp. isolated from Romanian outpatients’ stool samples. Methods: In 2019, community-acquired strains were collected identified using MALDI-TOF mass spectrometry, susceptibility profiles have been determined with the MicroScan system, soluble factors evaluated specific culture media, while biofilm formation was quantified 96-well plates. Molecular analysis targeted genes for β-lactams (e.g., blaTEM blaSHV); tetracyclines tet(A)); sulphonamides; quinolones, as well invA, spvC, pldA, held). Whole-genome sequencing (WGS) performed on 19 selected isolates. A silver nanoparticles (AgNPsol) alternative conventional antibiotics tested effectiveness against multidrug-resistant (MDR) Results: From total of 309 isolates (65.05% children under 4 years age) belonging four subtypes serovars, 27.86% showed at least one antibiotic, most frequently tetracycline, ampicillin, piperacillin. The expressed haemolysin (67%), aesculinase (65%), gelatinase (62%). Resistance trimethoprim-sulfamethoxazole encoded by sul1 gene 44.83% tet(A) (59.52%). ESBL blaTEM, blaSHV, blaCTX-M detected PCR 16.18%, 2.91%, 0.65% strains, respectively. Additionally, 98.63% carried invA marker, notable positive associations between qnrB, spvC. Conclusions: present findings revealed significant patterns isolates, subtypes, AR, virulence, emphasising need continuous surveillance infections. potential AgNPs an treatment option demonstrated, particularly paediatric S. enterica
Language: Английский
Citations
0Materials Chemistry and Physics, Journal Year: 2025, Volume and Issue: unknown, P. 130685 - 130685
Published: March 1, 2025
Language: Английский
Citations
0Carbohydrate Polymers, Journal Year: 2025, Volume and Issue: unknown, P. 123501 - 123501
Published: March 1, 2025
Language: Английский
Citations
0ACS Omega, Journal Year: 2025, Volume and Issue: unknown
Published: March 14, 2025
The combined green synthesis of carbon dots (CDs) from the hydrothermal conversion ciprofloxacin and silver nanoparticles (AgNPs) using sodium alginate as a reducing stabilizing agent results in arrangements nanostructures (CD@AgNP composites) with positive surface charge that electrostatically interact Gram-positive Gram-negative bacteria planktonic form also biofilm forms, inhibiting their growth adhesion on surfaces. Outstanding performance for CD-based materials 5-log reduction colony-forming units (CFU/mL) E. coli after 1 h treatment decrease 99.32% consolidated S. aureus. These result intrinsic fluorescence CDs an overall eco-friendly preparation process can be explored disinfection procedures based direct administration sanitizer dispersed aqueous solution. This is justified by adequate antibiotics positively charged composites AgNPs, resulting nanocomposites which prevailing cationic effect facilitates incorporation diffusion into bacterial membrane cells.
Language: Английский
Citations
0International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 283, P. 137765 - 137765
Published: Nov. 16, 2024
Language: Английский
Citations
1Natural Products and Bioprospecting, Journal Year: 2024, Volume and Issue: 14(1)
Published: Nov. 30, 2024
Language: Английский
Citations
0