The simulated smelting and founding experiment of bronze showed that the copper minerals from different regions could be distinguished clearly by using the multi-statistical analysis based on choosing the chalcophile elements determined by ICP-AES. In the present paper, the data of trace elements in bronzes from Panlongcheng Site and Ezhou, which were determined by NAA, were tried to be processed. The analytical result showed that the bronzes from Panlongcheng and Ezhou could be divided clearly, just like the results of the former simulated smelting and founding experiment of bronze. So, the feasibility of trace element analysis for the study of provenance of copper minerals in ancient bronzes was proved again.
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Waste Manag
January 2025
Helmholtz-Zentrum Dresden-Rossendorf, Helmholtz-Institute Freiberg for Resource-Technology, Freiberg, Germany.
Printed circuit boards represent an extraordinarily challenging fraction for the recycling of waste electric and electronic equipment. Due to the closely interlinked structure of the composing materials, the selective recycling of copper and closely associated precious metals from this composite material is compromised by losses during mechanical pre-processing. This problem could partially be overcome by a better understanding of the influence of particle size and shape on the recovery of finely comminuted and well-liberated metal particles during mechanical separation.
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January 2025
Department of Fuel, Minerals and Metallurgical Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, 826004, India.
The Malanjkhand chalcopyrite deposit, India's primary copper ore producer, has potential for enhanced flotation performance. This study employs standard flotation experiments using a mechanical cell, integrating a conventional collecting agent with a novel ester-based collector blend. A three-factor, three-level Box-Behnken design systematically evaluated experimental parameters, analysed using ANOVA, cubic plots, response surface methodologies.
View Article and Find Full Text PDFSci Rep
January 2025
College of Jilin Emergency Management, Changchun Institute of Technology, Changchun, 130012, China.
Globally, heavy metal (HM) soil pollution is becoming an increasingly serious concern. Heavy metals in soils pose significant environmental and health risks due to their persistence, toxicity, and potential for bioaccumulation. These metals often originate from anthropogenic activities such as industrial emissions, agricultural practices, and improper waste disposal.
View Article and Find Full Text PDFJ Dent
December 2024
Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan; Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan. Electronic address:
Objectives: To evaluate the multifunctionality of silver-copper co-loaded mesoporous bioactive glass (MBG), with the goal of developing an advanced pulp-capping material.
Methods: The synthesis of materials was conducted using the sol-gel method, following the approach described in previous studies but with some modifications. The composition included 80 mol% SiO₂, 15 mol% CaO, and 5 mol% P₂O₅, with additional components of 5 mol% silver, 5 mol% copper, or 1 mol% silver combined with 4 mol% copper, designated as Ag5/80S, Cu5/80S, or Ag1Cu4/80S, respectively.
Front Pharmacol
December 2024
Department of Pharmacy, University of Agriculture, Faisalabad, Pakistan.
Introduction: Rheumatoid arthritis is an autoimmune disease that mainly causes joint damage. The patient experiences loss of appetite, pain, fever, and fatigue. The present study was designed to phytochemically characterize and evaluate the anti-arthritic activity of green-synthesized copper oxide (CuO) nanoparticles (NPs) using the hydroalcoholic extract of roots in an adjuvant-induced arthritic rat model.
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