📄 Category

chemistry

1013 papers

📄 chemistry

Pestalachlorides A3a, A3b and pestalotinone E: three new compounds derivative from endolichenic fungi Pestalotiopsis rhododendri

This study reports the isolation and structural characterization of three new compounds, pestalachlorides A3a/A3b and pestalotinone E, along with the known analogue SB87-H, from the endolichenic fungus *Pestalotiopsis rhododendri*, highlighting the significant antibacterial activities of compounds 2 and 3 against various bacterial strains and proposing a plausible biosynthetic pathway for these metabolites.

Qing Lv, Mengyuan Wang, Mengna Luo, Ning He, Shanshan Chang, Yunying Xie2026-08-27
📄 chemistry

Data-Driven Phase-Aware Knowledge Distillation for Stiff Chemical Reaction Networks

This paper introduces Phase-Aware Knowledge Distillation (PAKD), a fully data-driven framework that autonomously discovers latent dynamical phases via unsupervised learning to distill high-fidelity stiff chemical reaction networks into compact, efficient student models, outperforming classical approximation methods across diverse chemical and biological systems.

Wuyue Yang, Sheng Ran, Liu Hong2026-08-27
📄 chemistry

Structurally and chemically coupled ordered boundaries enable ultrafine boundary networks in a magnesium alloy

This study reports a novel strategy for strengthening magnesium alloys by creating a dense, stable network of ultrafine boundaries formed through twin–twin reactions and chemically ordered solute segregation, which nearly triples yield strength and boosts ultimate tensile strength above 400 MPa while maintaining ductility.

Hui-Yuan Wang, Zhiping Guan, Yongsen Yu, Peng Chen, Shuo Zhou, Chunfeng Du, Haipeng Li, Wenqian Wu, Cheng Wang, Yipeng G (…)2026-08-27
📄 chemistry

Combined experimental and DFT investigation of the structural, spectroscopic and electronic properties of 2-hydroxy-5-(naphthalen-1-yldiazenyl)benzaldehyde

This study combines experimental spectroscopy (FTIR, ¹H NMR, UV-Vis) and DFT calculations to characterize the structural, electronic, and spectroscopic properties of 2-hydroxy-5-(naphthalen-1-yldiazenyl)benzaldehyde, revealing its hydrogen bonding, solvent-dependent absorption shifts, and potential as a metal-coordinating ligand.

Tahir Javadzade, Rustam Rustamov2026-08-27
📄 chemistry

Regulating the Microstructure, Texture, Electrochemical Behavior and Discharge Performance of Mg–Sn–Bi–Gd Alloy Anodes for Mg–Air Batteries through Extrusion Ratio Control

This study demonstrates that controlling the extrusion ratio of Mg–Sn–Bi–Gd alloy anodes effectively regulates their microstructure and electrochemical kinetics, with the ER16 condition yielding the highest discharge stability and anode efficiency (36.2%) due to a loose, uniform product layer that facilitates electrolyte penetration and continuous Mg(OH)₂ detachment.

Yingzhu Wang, Hongze Xu, Fangyu Jing, Xiaofang Yuan, Zehua Yan, Lei Li2026-08-27
📄 chemistry

A Framework for Assessing Annealing Effectiveness in Material Extruded Polyamide Composites

This study demonstrates that thermal annealing at 160°C significantly enhances the tensile strength and crystallinity of material extruded polyamide and carbon fiber-reinforced polyamide composites while exhibiting anisotropic dimensional stability, leading to the proposal of a new directional Annealing Index to simultaneously evaluate mechanical improvements and shrinkage for optimizing post-processing.

Rohit Nandakumar Shenoy, Satish Shenoy Baloor, Chandrakant Ramanath Kini, Suhas Yeshwant Nayak, Faizaan Mirza2026-08-27
📄 chemistry

Cold atmospheric pressure plasma pretreatment as a novel tool to tailor the functional properties of quince seed mucilage biopolymer-based edible films

This study demonstrates that optimizing cold atmospheric plasma treatment conditions, particularly at 6 kV for 1 minute or 7 kV for 3 minutes, significantly enhances the mechanical, barrier, and thermal properties of quince seed mucilage-based edible films without compromising their thickness.

javaneh karimi, sahand sohrabi, Mojtaba Moezzi Rad, mehdi sharifian, Leila Zare, neda Mollakhalili Meybodi2026-08-27
📄 chemistry

Screen-Printed Carbon/TiO2 Counter Electrodes for Indoor Dye-Sensitized Solar Cells Using TiO2 -Inorganic Binders Prepared via Polyvinylpyrrolidone-Assisted Sol-Gel Synthesis

This study demonstrates that screen-printed carbon counter electrodes utilizing PVP-assisted sol-gel TiO₂ inorganic binders outperform traditional ethyl cellulose-based and platinum references in indoor dye-sensitized solar cells, achieving power conversion efficiencies of up to 18.94% at 1000 lux due to improved mechanical stability, lower sheet resistance, and enhanced charge transfer.

Tatiana Buchlová, Michal Hatala, Izabela Vajová, Roberto Speranza, Andrea Lamberti, Pavol Gemeiner2026-08-27
📄 chemistry

A one-dimensional Cd(II) coordination polymer based on 2,5- dibromobenzene-1,4-dicarboxylate: Crystal structure and dielectric properties

A new one-dimensional cadmium(II) coordination polymer, [Cd(Br₂-BDC)(2-MeIm)₂(DMF)]ₙ, was synthesized and comprehensively characterized, revealing a distorted pentagonal-bipyramidal geometry and promising dielectric properties suitable for frequency-dependent electronic applications.

Bakhtiyor Chori ugli Tursunov, Yakubov Yuldash Yusupbaevich, Khayit Khudaynazarovich Turaev, A. Aditya Prasad, Abrorbek (…)2026-08-27
📄 chemistry

Visible-Light-Active Photosensitized TiO 2 Nanomaterials for Antimicrobial Photodynamic Inactivation: Interfacial Photochemistry and Iodide Potentiation

This study demonstrates that visible-light-active photosensitized TiO₂ nanomaterials exhibit variable antimicrobial efficacy against *Staphylococcus aureus* and *Klebsiella pneumoniae* through combined Type I and Type II photochemistry, which can be significantly potentiated by iodide addition to overcome bacterial resistance and achieve near-complete inactivation.

Paweł Repetowski, Konrad Miazga, Jakub M. Kwieciński, Janusz M. Dąbrowski2026-08-27