Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
This study investigates the dual role of copper ions in catalysis and complexation during the oxidation of lignosulfonates with hydrogen peroxide (HO) under alkaline conditions. The presence of copper ions reduces partial oxidation by 86 % compared to HO treatment alone, enhancing overall conversion efficiency to 63 % under increased oxidative conditions. Analyses reveal that copper-lignosulfonate complexes facilitate redox cycling and hydroxyl radical generation through interactions with HO, confirming copper's dual functions. This mechanism mitigates the hindrance of sulfonic groups on hydroperoxide anions, leading to lignosulfonate degradation into dicarboxylic acids. These findings provide novel insights into the copper-lignosulfonate/HO system, expanding the understanding of oxidative degradation mechanisms beyond traditional Fenton-like reactions. Furthermore, this system offers a simplified and efficient alternative for industrial applications, particularly in integration with the sulfite pretreatment process of woody biomass for producing valuable co-products.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.biortech.2024.131729 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Elesclomol-Copper combination synergistically targets mitochondrial metabolism in cancer stem cells to overcome chemoresistance in pancreatic ductal adenocarcinoma.
Mol Ther
September 2025
Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China; State Key Laboratory of Systems Medicine for Cancer, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Pancreatic Cancer Heterogeneity, Candiolo Cancer Institute
Pancreatic ductal adenocarcinoma (PDAC) is an aggressive cancer with poor prognosis, partly due to cancer stem cells (CSCs) that drive progression and treatment resistance. We explored the therapeutic potential of inducing cuproptosis, a copper-dependent regulated cell death, in CSC-enriched PDAC models. Using human and murine PDAC models, we evaluated elesclomol, a copper transport enhancer.
View Article and Find Full Text PDFHigh Capacity and Efficient Adsorption of Lutetium(III) by the Metal-Organic Framework HKUST-1 in Simulated Medical Wastewater.
Ann N Y Acad Sci
September 2025
School of Nuclear Science and Technology, University of South China, Hengyang, China.
Lutetium (Lu(III)), a heavy rare earth element, plays a critical role in advanced industrial processes and nuclear medicine applications. Given its high economic value and potential environmental risks, the recovery of Lu(III) from medical wastewater is both necessary and urgent. However, previous studies on the adsorption behavior of Lu(III) have been limited by low adsorption capacity, competition from coexisting metal ions, and the influence of environmental temperature.
View Article and Find Full Text PDFEngineered plasmonic copper (II) sulfide-wrapped polystyrene nanoparticles for spectroscopic detection of mercury ions.
J Hazard Mater
September 2025
Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China. Electronic address:
We report a novel and highly effective UV-Vis sensing platform based on plasmonic copper (II) sulfide-capsulated polystyrene nanoparticles (PS@CuS NPs) for the rapid, ultrasensitive, and selective detection of Hg . The detection mechanism is driven by a specific anion-exchange reaction between Hg and CuS, resulting in the in-situ transformation of plasmonic CuS into non-plasmonic HgS, which induces a distinct and quantifiable shift in UV-Vis absorption. This structural and optical evolution enables the platform to achieve an exceptionally low detection limit of 20 pM within just 5 min, far below most regulatory thresholds, and a wide linear detection range from 20 pM to 30 nM.
View Article and Find Full Text PDFHarnessing the synergy of copper nanoparticles and vitamin C towards the resolution of wound infection.
Biomater Sci
September 2025
School of Biomedical Sciences, Kent State University, Kent, OH 44242, USA.
Copper ions have been considered to hold promise for the treatment of wound infections due to their unique characteristics that exhibit not only antibacterial activities through multiple bactericidal mechanisms but also tissue reparative activities by acting as a co-factor for many angiogenic promoters and enzymes. However, higher doses are necessary to achieve sufficient bactericidal and antibiofilm effects. The objective of this study is to develop copper nanoparticles (CuNPs) as an antimicrobial agent by harnessing the characteristics of copper and vitamin C (VC) to form a sustained catalytic cycle, leading to a significant enhancement of bactericidal and antibiofilm effects when compared with the use of CuNPs alone.
View Article and Find Full Text PDFExploring the effect of copper on the bioactivity of 8-quinolines: an and study.
Dalton Trans
September 2025
Biomedical Inorganic Chemistry Lab, Department of Chemical Sciences, University of Catania, v.le A. Doria 6, 95125, Catania, Italy.
Current anticancer therapy is challenged by the adaptability and resistance of tumor cells as well as limited drug selectivity that causes severe side effects. The scientific community maintains high interest in metal-based chemotherapeutic agents due to their unique interactions with cancer cells, potentially overcoming resistance mechanisms and exploiting the physiopathology of the tumour tissues. Copper, in particular, plays a dual role in cancer, both facilitating tumor progression and triggering cuproptosis, a copper-induced cell death mechanism.
View Article and Find Full Text PDF