📄 chemistry

Effects of equal-channel angular pressing and equal-channel multi-angular pressing on the microstructure and mechanical performance of aluminum strips

This study demonstrates that both Equal-Channel Angular Pressing (ECAP) and Equal-Channel Multi-Angular Pressing (ECMAP) significantly refine the grain structure and enhance the mechanical properties of Al-1050 strips, with ECAP exhibiting superior hardening efficiency compared to ECMAP after three processing passes.

Elshafey Ahmed Gadallah, Mohamed Ibrahim Abd El Aal, Mahmoud Omar Abd Elrady, Abdelkarim Yousif Mohamed, Hossam Hemdan E (…)2026-09-24
📄 chemistry

Optimized small scale automated preparation and quality control of [68Ga]Ga-DOTA-MGS5 and [177Lu]Lu-DOTA-MGS5 for clinical application

This study validates an optimized, automated synthesis protocol for the clinical production of [68Ga]Ga-DOTA-MGS5 and [177Lu]Lu-DOTA-MGS5 theranostic agents, demonstrating that the addition of ascorbic acid effectively mitigates radiolysis to ensure high purity and stability without the need for complex purification steps.

Sven Messerschmidt, Taraneh Sadat Zavvar, Lisa Pivetta, Martin Kraihammer, Klaus Faserl, Paul Eichberger, Clemens Decris (…)2026-09-24
📄 chemistry

Colouration characteristics and mechanisms of Kangxi-period underglaze copper-red porcelain

This study employs advanced analytical techniques to characterize 20 Kangxi-period underglaze copper-red porcelain specimens, revealing that their vivid hues result from a weakly reducing firing atmosphere where the relative valence-state ratio of copper (Cu⁰, Cu⁺, Cu²⁺) and the presence of sulfur and arsenic dictate the formation of Cu₂O microcrystals for red coloration and Cu²⁺-rich phase-separated droplets for green spots.

Jingyun Wang, Men Zhang, Chenyu Wu, Zirui Qi, Qijiang Li2026-09-24
📄 chemistry

Strain Engineering in Amino-Confined CdS Enables Kinetically Coupled Methanol and Ammonia Oxidation for Photocatalytic Formamide Synthesis

This study demonstrates that a compressively strained CdS–diethylenetriamine composite with amino confinement significantly enhances photocatalytic formamide synthesis from methanol and ammonia by synchronizing reaction kinetics to overcome C–N coupling limitations, achieving a production rate 49 times higher than pristine CdS without external oxidants.

Kai Dai, Jiale Lv, Jing Wang, Hailiang Chu, Yong Chen2026-09-24
📄 chemistry

Computational Modeling and Thermodynamic Analysis for Extreme-Pressure Production of New Nanostructured Tungsten-Carbide/Lithium-6 Composite Materials: Fabrication, Microstructural Integration, and Extreme-Environment Testing

This study presents a comprehensive framework for the theoretical modeling, high-pressure thermomechanical synthesis, and extreme-environment testing of a novel nanostructured tungsten-carbide/lithium-6 hydride composite, demonstrating its successful consolidation to near-theoretical density and structural integrity under severe thermal and dynamic loading conditions.

Aik Khachatrian, Dora Zakarian, Vaginak Mushegian, Satenik Harutyunyan2026-09-24
📄 chemistry

Green synthesis of iron oxide nanoparticles using Gomphostemma mastersii leaf extract and evaluation of structural antioxidant and antimicrobial properties

This study demonstrates the eco-friendly, microwave-assisted synthesis of iron oxide nanoparticles using *Gomphostemma mastersii* leaf extract as a capping agent, confirming their structural stability and significant antioxidant and antimicrobial activities against various bacterial and fungal strains.

Rajib Saha, Shurti Sharma, Samson Rosly Sangma, Shisak Sharma, Mayur Mausoom Phukan2026-09-23
📄 chemistry

Construction of Hierarchically Porous Dealuminated ZSM-5 Zeolite for Enhanced Anionic Dye Adsorption: A Case Study of Xylenol Orange

This study demonstrates that a dual-modification strategy combining CTAB-directed recrystallization and HCl-mediated dealumination constructs hierarchically porous, dealuminated ZSM-5 zeolites with enhanced Lewis-acidic sites and mesoporous transport channels, enabling highly efficient and stable removal of anionic Xylenol Orange dyes through synergistic surface coordination.

Shuyan Zang, Yupeng Zhang, Xiangpeng Wang, Yujie Feng, Shuhan Chai, Ziyan Liu, Wenjing Zhao, Wenxu Wang, Zhihao Fang, Ju (…)2026-09-23
📄 chemistry

Comprehensive characterization of cholesterol oxidation products formed during thermal processing through targeted quantification and untargeted annotation

This study establishes a reproducible thermal oxidation model for cholesterol and employs a combined targeted and untargeted LC-MS/MS workflow to comprehensively characterize the resulting complex mixture of oxidation products, revealing that heating generates a diverse array of sterol-derived compounds far exceeding the limited set typically monitored in standard analyses.

Md Amran Gazi, Xin Qing, Greg Barrett-Wilt, Sean Baker, Mark P. Richards, Vanessa A. Leone2026-09-23