📄 chemistry

Green Electropolishing of Nickel and Cobalt in a Choline Chloride–Lactic Acid Deep Eutectic Solvent: Electrochemical Behavior and Nanoscale Surface Smoothing

This study demonstrates that a choline chloride–lactic acid deep eutectic solvent serves as an effective, environmentally friendly medium for the electropolishing of nickel and cobalt, achieving significant nanoscale surface smoothing and mirror-like finishes under optimized potentiostatic conditions.

Wrya O. Karim, Harez R. Ahmed, Kawan F. Kayani, Srood O. Rashid, Sewara J. Mohammad, Aso. Q. Hassan, Rebaz F. Hamarawf (…)2026-07-14
📄 chemistry

Integrated classical/quantum-classical neural networks, DFT, and experiments for predicting bandgap and color of CrxSbxTi1−2xO2 yellow-orange pigments

This study presents an integrated framework combining experimental synthesis, density functional theory calculations, and classical/hybrid quantum-classical neural networks to accurately predict the bandgap and color of Cr/Sb co-doped TiO₂ ceramic pigments, demonstrating the potential of quantum machine learning for materials design.

Seyed Yousof Vaselnia, Mohsen Khajeh Aminian, Reza Dehghan banadaki2026-07-14
📄 chemistry

Valorization of Wastepaper Ash and Waste Ceramic Powder as Supplementary Cementitious Materials in Cement Mortar Production

This study demonstrates that incorporating a 15% mixture of wastepaper ash and waste ceramic powder as a supplementary cementitious material significantly enhances the mechanical, durability, and microstructural properties of cement mortar, offering a viable and sustainable solution for partial cement replacement.

Reyot Alemu Kebede, Sofonias Alemayehu Desta, Bahiru Bewket Mitikie, Wallelgn Mulugeta2026-07-14
📄 chemistry

An aptamer-controlled Mn-Au oxidase-mimicking nanozyme for smartphone-assisted colorimetric detection of mercury ions

This study presents a smartphone-assisted colorimetric platform for detecting mercury ions using a Mn-Au hybrid nanozyme whose oxidase-mimicking activity is reversibly controlled by an aptamer that desorbs upon specific Hg²⁺ binding, enabling sensitive and on-site environmental monitoring.

Chen Ma, Yida Zhang, Shuai Mu, Yuan Zhang, Shuoyun Wei, Quanfang Li, Shufang Ren2026-07-14
📄 chemistry

Geometry and the Emergence of Molecular Order in Early Life: A General Phenomenological Framework for Disorder-Limited Surface Symmetry Breaking, Applied to Prebiotic Homochirality

This paper proposes a general phenomenological framework demonstrating that geometric order, quantified by a new surface uniformity parameter, acts as an independent control variable that allows prebiotic systems to maintain useful chiral symmetry breaking despite substantial microscopic disorder, with gradual rather than threshold-like tolerance confirmed through modeling and falsifiable experimental predictions.

Leon Sandler2026-07-14
📄 chemistry

A machine learning-based method for adulteration detection in white rice vinegar using different non-targeted spectroscopy

This study demonstrates that Fourier transform infrared (FTIR) spectroscopy coupled with machine learning outperforms near-infrared and fluorescence techniques in detecting synthetic acetic acid adulteration in white rice vinegar, while highlighting the critical necessity of tailoring chemometric models to specific vinegar brands due to significant variability in optimal preprocessing and feature selection strategies.

Xin Xu, Fengzhong Wang, Dongqi Guo, Bo Wang, Yatao Huang, Bei Fan, Ziyang Wu, Long Li2026-07-14