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Light-driven in-situ synthesis of nano-sulfur and graphene oxide composites for efficient removal of heavy metal ions.
J Hazard Mater
January 2025
State Key Lab of Geohazard prevention & Geoenvironment protection, College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China. Electronic address:
Sulfur nanoparticles (SNPs) and their composites are promising for heavy metal adsorption, yet current SNPs often lack surface S, leading to low affinity toward heavy metal and ease of aggregation. Here, we report a simple light-driven method for facile prepare SNPs with surfaces enriched with S and in-situ load them onto graphene oxide (GO) to fabricate GO-S composites. Under illumination, the O generated by photosensitizer phloxine B was able to oxidize S into elemental SNPs.
View Article and Find Full Text PDFFacile Synthesis of Monodisperse Gold Nanorods, Gold Nanobipyramids and Gold Nanocups with Different Coatings and Evaluation of Their Cellular Cytotoxicity.
Curr Drug Deliv
January 2025
School of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
Article Synopsis
- The study highlights the rising importance of assessing the cytotoxicity of gold nanoparticles (GNPs) in biomedical applications.
- Researchers synthesized three types of GNPs—gold nanorods (GNRs), gold nanobipyramids (GNBPs), and gold nanocups (GNCs)—using a specific method and measured their sizes.
- The experiments showed that the cytotoxic effects of GNPs varied based on their shape and surface coating, with CTAB-coated GNPs being more harmful than PEG-coated ones, indicating that these factors significantly influence GNP behavior in cells.
An Assessment of the Cyto-Genotoxicity Effects of Green-Synthesized Silver Nanoparticles and ATCBRA Insecticide on the Root System of .
Nanomaterials (Basel)
January 2025
King Abdullah Institute for Nanotechnology, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
We aimed to synthesize silver nanoparticles (AgNPs) using (cardamom) extracts and assess the cytotoxicity and genotoxicity of the cardamom extract, -AgNPs, and the insecticide ATCBRA-commonly used for pest control-on the root system of (broad bean). The chemical composition of the aqueous cardamom extract was identified and quantified using GC-MS, revealing a variety of bioactive compounds also present in cardamom essential oil. These included α-terpinyl acetate (21.
View Article and Find Full Text PDFNIPAm Microgels Synthesised in Water: Tailored Control of Particles' Size and Thermoresponsive Properties.
Polymers (Basel)
December 2024
School of Physical & Chemical Sciences, Queen Mary University of London, Joseph Priestley Building, Mile End Road, London E1 4NS, UK.
Microgels, combining the properties of hydrogels and microparticles, are emerging as versatile materials for varied applications such as drug delivery and sensing, although the precise control of particle size remains a challenge. Advances in synthetic methodologies have provided new tools for tailoring of properties, however costs and scalability of the processes remains a limitation. We report here the water-based synthesis of a library of -isopropylacrylamide-based microgels covalently crosslinked with varying contents of ,-methylenebisacrylamide.
View Article and Find Full Text PDFGreen Synthesis of Exell-Mediated Silver Nanoparticles and Evaluation of Antibacterial Performance.
Biomolecules
November 2024
Menzies School of Health Research, Darwin, NT 0810, Australia.
This study uses a novel method in which extracts from different parts of a single plant are used to synthesize well-defined silver nanoparticles (AgNPs) to address the lack of capping agents in certain plant extracts. We focused on synthesizing AgNPs with enhanced biomedical activity using aqueous leaves and fruit extracts of Exell, a plant native to northern Australia that is known for its high phenolic content and associated health benefits. The impact of using parameters such as the Ag ion-to-extract ratio and pH on AgNP synthesis was examined.
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