The behavior of silver nitrate in non-aqueous liquid oligomeric media-aromatic and aliphatic diglycidyl ethers and aliphatic diamine-has been investigated. By employing UV-visible spectrophotometry and dynamic light scattering, it has been shown that in diglycidyl oligomers, regardless of the nature of the monomeric unit, the formation of silver nanoparticles occurs, and the kinetics of this process has been studied. At the same time, in the medium of aliphatic diamine, the reduction of silver ions is absent, indicating the formation of a complex compound. XANES and EXAFS confirmed the formation of such a complex, established the probable coordination number of silver equal to three, and characterized the nearest atomic environment of silver. The SAXS results indicate the formation of complexes of extended conformation environment associated oligodiamine molecules, which favors the formation of an extended network of associates. The SAXS data were used to calculate the composition of the mixture of complexes and associates of diamine molecules for a saturated solution of silver nitrate in diamine. The results of this work will be used to develop new oligomer-silver nanocomposites with unique optical and bactericidal properties.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1063/5.0253409 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Structure and supramolecular organization of silver nitrate modified epoxy or amino terminated liquid oligoethers.
J Chem Phys
March 2025
MIREA - Russian Technological University, Lomonosov Institute of Fine Chemical Technologies, 86, Prospekt Vernadskogo, Moscow 119571, Russia.
The behavior of silver nitrate in non-aqueous liquid oligomeric media-aromatic and aliphatic diglycidyl ethers and aliphatic diamine-has been investigated. By employing UV-visible spectrophotometry and dynamic light scattering, it has been shown that in diglycidyl oligomers, regardless of the nature of the monomeric unit, the formation of silver nanoparticles occurs, and the kinetics of this process has been studied. At the same time, in the medium of aliphatic diamine, the reduction of silver ions is absent, indicating the formation of a complex compound.
View Article and Find Full Text PDFEcofriendly synthesis of a hybrid hydrogel incorporating silver nanoparticles: Biological and photocatalytic activities.
Chemistry
March 2025
Universidad de Castilla-La Mancha, Química Inorganica, Organica y Bioquimica, avda Camilo José Cela, SPAIN.
We present the synthesis and characterization of a hybrid material comprising silver nanoparticles embedded within a 3D hydrogel network. The use of an aqueous extract of Acanthus mollis as a natural reducing agent facilitates the synthesis process. Acanthus mollis is a perennial, invasive and leafy plant that is widely distributed across the planet.
View Article and Find Full Text PDFManagement of cosmetic concerns after gender-affirming vaginoplasty: a retrospective case series and guide to revisions.
Int J Impot Res
March 2025
Department of Urology, University of Illinois at Chicago, Chicago, IL, USA.
This retrospective study examines 58 transgender women who presented with cosmetic concerns following gender-affirming vaginoplasty between January 2020 and April 2023. The cohort's mean age was 36.8 years (±9.
View Article and Find Full Text PDFGreen synthesis of silver nanoparticles using neem and turmeric extract and its antimicrobial activity of plant mediated silver nanoparticles.
J Oral Biol Craniofac Res
February 2025
Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, 600077, TN, India.
Introduction: The green synthesis of silver nanoparticles has gained attention for being environmentally friendly and cost-effective. This study investigates the synthesis of silver nanoparticles using neem and turmeric extracts, which serve as natural reducing and capping agents, with a focus on characterizing these nanoparticles and assessing their antimicrobial properties against oral pathogens.
Materials And Methods: Neem and turmeric extracts were prepared by heating their powdered forms in distilled water, followed by filtration.
In situ synthesis of silver nanoparticles on silk: producing antibacterial fabrics.
Bioprocess Biosyst Eng
March 2025
Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, 710129, China.
Herein, we explored an effective method for preparing silver nanoparticles (Ag NPs)-coated antibacterial silk fabrics. In particular, using amino acids and cellulose from silk as reducing agents and silver nitrate as a precursor, Ag NPs were synthesised in situ on the surface of silk without requiring additional reducing agents and catalysts. The surface morphology and chemical composition of the involved samples were characterised using techniques such as scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier-transform infrared spectroscopy and X-ray photoelectron spectroscopy.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!