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Simultaneous Enhancement of Flame Resistance and Antimicrobial Activity in Epoxy Nanocomposites Containing Phosphorus and Silver-Based Additives.
Molecules
July 2023
Department of Public Health, "Ion Ionescu de la Brad" Iasi University of Life Sciences, 8 Sadoveanu Alley, 707027 Iasi, Romania.
Article Synopsis
- The development of multifunctional materials with superior qualities is essential for advancing technologies while minimizing environmental impact and health risks.
- The study focuses on enhancing epoxy resins using organophosphorus compounds and silver nanoparticles to improve both flame resistance and antimicrobial properties.
- Experimental results showed that the new epoxy nanocomposites had favorable thermal properties and effective antimicrobial activity, with structural analysis revealing a homogeneous and stable morphology.
Porous Copper-Loaded Zeolites for High-Efficiency Capture of Iodine from Spent Fuel Reprocessing Off-Gas.
Inorg Chem
May 2022
Department of Radiochemistry, China Institute of Atomic Energy, Beijing 102413, China.
Capturing volatile radionuclide iodine produced in the nuclear industry is a crucial environmental issue. In previous studies, the principal efficient adsorbent for iodine capture was silver-containing zeolite. As silver-containing zeolites are expensive, alternate copper-loaded porous zeolites, including CuCl loaded NaY reduced by H (denoted as HCuY) and CO (denoted as COCuY), were studied for iodine adsorption at moderate temperatures.
View Article and Find Full Text PDFAntimicrobial and Hemostatic Activities of Cotton-Based Dressings Designed to Address Prolonged Field Care Applications.
Mil Med
January 2021
Research & Development, H&H Medical, Inc., Williamsburg, VA 23040, USA.
Introduction: Developing affordable and effective hemostatic and antimicrobial wound dressings for prolonged field care (PFC) of open wounds is of interest to prevent infection, to prevent sepsis, and to conserve tissue viability. The need for an effective hemostatic dressing that is also antimicrobial is required of a hemostatic dressing that can be left in place for extended periods (days). This is particularly important in light of the existence of pathogens that have coagulopathy properties.
View Article and Find Full Text PDFHot-Electron Photodynamics in Silver-Containing BEA-Type Nanozeolite Studied by Femtosecond Transient Absorption Spectroscopy.
Chemphyschem
December 2020
Univ. Lille, CNRS, UMR 8516, LASIRE-Laboratoire de Spectroscopie pour les Interactions, la Réactivité et l'Environnement, 59000, Lille, France.
Silver cations were introduced in nanosized BEA-type zeolite containing organic template by ion-exchange followed by chemical reduction towards preparation of photoactive materials (Ag -BEA). The stabilization of highly dispersed Ag nanoparticles with a size of 1-2 nm in the BEA zeolite was revealed. The transient optical response of the Ag-BEA samples upon photoexcitation at 400 nm was studied by femtosecond absorption.
View Article and Find Full Text PDFAcute Toxicity of Silver Free and Encapsulated in Nanosized Zeolite for Eukaryotic Cells.
ACS Appl Mater Interfaces
April 2017
ISTCT/CERVOxy Group, Normandy University, UNICAEN, CEA, CNRS , 14000 Caen, France.
The potential toxicity of encapsulated silver in EMT-type nanosized zeolites on prokaryotic cells, human tumor cell lines from various origins, and primary cultures of neurons and astrocytes was investigated. Silver in cationic form (Ag) was encapsulated in EMT-type nanosized zeolites via an ion exchange process (Ag-EMT) and compared with the reduced silver (Ag) in the zeolite (Ag-EMT). As reference samples for the toxicity measurements, pure EMT-type zeolite and silver perchlorate were used.
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