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Effect of Substituent Groups on the Adsorption Efficiency of Phenols by Activated Carbon Developed by Hydrothermally Treated Phyllanthus Emblica Fruit Stone.
Toxics
November 2024
Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran 1416634793, Iran.
In this study, the novel activated carbon developed from fruit stone, through hydrothermal treatment at low pressure and temperature, was utilized for the removal of 4-nitrophenol, 4-chlorophenol, and phenol from water. The activated carbon produced (AC-HTPEFS) showed a well-developed porosity with a surface area of 569 m g and a total pore volume of 0.342 cm g.
View Article and Find Full Text PDFUnit Load of Abrasive Grains in the Machining Zone During Microfinishing with Abrasive Films.
Materials (Basel)
December 2024
Laboratoire de Tribologie et Dynamique des Systemes (LTDS), Ecole Centrale de Lyon, Centre National de la Recherche Scientifique, 69134 Lyon, France.
This work investigates the contact between abrasive particles and workpieces in microfinishing processes with special consideration given to the determination of unit force, unit pressure, and grain, the forces exerted by individual abrasive grains. A detailed methodology was established for measuring the contact area, penetration depth, and circumferences of grain imprints at depths corresponding to multiples of the total height of the abrasive film, represented by the parameter . The following depths were analyzed: 0.
View Article and Find Full Text PDFInfective Endocarditis by Biofilm-Producing Methicillin-Resistant -Pathogenesis, Diagnosis, and Management.
Antibiotics (Basel)
November 2024
Division of Pulmonary and Critical Care, Unity Point Health at St. Luke's Regional Medical Center, 2720 Stone Park Blvd, Sioux City, IA 51104, USA.
Infective endocarditis (IE) is a life-threatening condition with increasing global incidence, primarily caused by , especially methicillin-resistant strains (MRSA). Biofilm formation by is a critical factor in pathogenesis, contributing to antimicrobial resistance and complicating the treatment of infections involving prosthetic valves and cardiovascular devices. Biofilms provide a protective matrix for MRSA, shielding it from antibiotics and host immune defenses, leading to persistent infections and increased complications, particularly in cases involving prosthetic materials.
View Article and Find Full Text PDFOptimisation of activated carbon from fruit stones and shells derived via molten salt activation for dye removal.
Bioresour Technol
January 2025
Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Gent, Belgium.
Recent advancements in activated carbon production involve molten salt activation using a eutectic mixture of ZnCl-NaCl-KCl. This study explores the production of activated carbon from fruit waste, specifically walnut shells, using a 60:20:20 mol % eutectic mixture. Optimal conditions were identified through response surface methodology, with 400 °C and a salt-to-biomass ratio of 10 g/g, yielding a surface area of 276 m/g.
View Article and Find Full Text PDFAn exploratory study evaluated the 30 most commonly reported medications in the United States food and drug administration's adverse event reporting system that are associated with the occurrence of kidney stones.
Front Pharmacol
December 2024
Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China.
Objective: This research project aimed to identify and analyze the top 30 drugs most commonly associated with kidney stone formation using data from the U.S. Food and Drug Administration's Adverse Event Reporting System (FAERS) database.
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