This project is focuses on novel, cost effective and simple plant mediated synthesis of silver nanoparticles (Ag-NPs) using leaf extract of Albizia procera. The optical, structural and physical properties of green synthesized Ag-NPs have been investigated by UV-Visible spectroscopy, X-ray Diffraction (XRD) and Atomic Force Microscopy (AFM), respectively. Prepared Ag-NPs are spherical in shape and crystalline in nature with an average size of 6.18 nm. Ag-NPs have showed promising potential in removal of organic pollutant methylene blue (MB) dye. Careful investigation on the removal of dye as a function of contact time, UV light and exposure time, dose of nanoparticles, temperature and pH have also been carried out. Moreover, Ag-NPs exhibit outstanding antibacterial activities against gram negative Escherichia coli (E. coli) and gram positive Staphylococcus aureus (S. aureus) bacterial pathogens.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.msec.2019.02.059 | DOI Listing |
Sci Rep
January 2025
Nanomaterials Science Research Laboratory, Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt.
The design and fabrication of novel electrodes with strong electrochemical responses are crucial in advanced supercapacitor technology. In this study, a poly(m-toluidine)/silver-silver oxide (PMT/Ag-AgO) nanocomposite was prepared using the photopolymerization method. Various characterization techniques were employed to analyze the prepared nanomaterials.
View Article and Find Full Text PDFLangmuir
January 2025
Electroplating Metal Finishing Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630003 TamilNadu, India.
We report the in situ synthesis of silver-containing polyisocyanurate (Ag-PI) gels via the self-polymerization of isocyanate-containing organic molecules (Desmodur N75) catalyzed by silver nitrate (AgNO) in ,'-dimethylformamide, which acts as both the solvent and reducing agent. Fourier transform infrared spectroscopy and X-ray diffraction confirmed the formation of polyisocyanurate and metallic silver nanoparticles. Gelation occurred in 30 min at 30 °C for Ag-PI, compared to 24 h for the uncatalyzed system, demonstrating AgNO's catalytic role.
View Article and Find Full Text PDFJ Photochem Photobiol B
January 2025
PG. Department of Chemistry, Pachaiyappa's College for Men, Kanchipuram, Tamilnadu, India.
Green synthesis of metal nanoparticles using plant extracts has emerged as an eco-friendly alternative to conventional methods, offering potential applications in biomedicine and environmental remediation. This study demonstrates the successful biosynthesis of silver nanoparticles (SNPs) and gold nanoparticles (GNPs) using Euphorbia acaulis leaf extract as a reducing and capping agent. The nanoparticles were thoroughly characterized using UV-Vis spectroscopy, HR-SEM, EDX, TEM, AFM, XRD, and FTIR analyses, confirming their successful synthesis and revealing their predominantly spherical morphology with sizes ranging from 1 to 100 nm.
View Article and Find Full Text PDFPLoS Genet
January 2025
Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, North Carolina, United States of America.
De novo mutations in the RNA binding protein DDX3X cause neurodevelopmental disorders including DDX3X syndrome and autism spectrum disorder. Amongst ~200 mutations identified to date, half are missense. While DDX3X loss of function is known to impair neural cell fate, how the landscape of missense mutations impacts neurodevelopment is almost entirely unknown.
View Article and Find Full Text PDFMikrochim Acta
January 2025
School of Pharmacy, Lanzhou University, Lanzhou, 730000, P. R. China.
A novel analytical method was designed and developed that exhibited ultraviolet-visible (UV-Vis), fluorescence (FL), and resonance Rayleigh scattering (RRS) signals for straightforward and comprehensive determination of monoamine oxidase B (MAO-B) using polyethylenimine-functionalized silver nanoparticles (PEI-Ag NPs). Through a facile one-step experiment, and NaOH assisted, in an aqueous solution of 100 ℃ for 40 min PEI reacted with AgNO to generate PEI-Ag NPs with a yellow color and weak blue fluorescence. Interestingly, phenylacetaldehyde (PAA), a specific product of MAO-B, causes significant enhancement of the three optical signals of UV-Vis, FL, and RRS.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!