jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Antonella Loiacono | Federico Fioravanti | Gianella Bertossi | Esteban A. Franceschini | Gabriela I. Lacconi
Source: Discover Chemistry. (article, 2025-04-22)
Field: Materials Science — Materials Chemistry

Nickel nanoparticles and superstructures: a chemical approach for optimized catalyst’s surfaces Nickel-based nanostructures are widely investigated as cost-effective alternatives to precious metal catalysts for hydrogen evolution reaction (HER) in alkaline electrolysis. However, controlling the growth of nickel nanoparticles (NiNPs) on conductive substrates remains a challenge for optimizing their catalytic performance. In this study, we explored the controlled growth of NiNPs on two distinct substrates: 316L stainless steel plated with nickel and 316L stainless steel coated with graphene oxide (GO). The NiNPs synthesis involved a simple chemical approach that entailed immersing the substrate plates in a solution containing nickel nitrate, sodium citrate, and sodium borohydride as a reducing agent. Various experimental parameters were examined, including variations in the concentration of Ni2⁺ ions, sequential NiNPs deposition on the surface, and temperature adjustments. Scanning electron microscopy (SEM) images revealed significant differences in the distribution and size of NiNPs. The NiWatts-coated substrate (Ni-SS) exhibited a higher nanoparticle coverage (72 ± 5% surface coverage) and more uniform distribution, while the GO-coated substrate (GO-Ni-SS) presented larger (average diameter: 85 ± 10 nm vs. 45 ± 8 nm for Ni-SS) and more widely dispersed nanoparticles. Preliminary alkaline electrolysis experiments demonstrated that both substrates exhibit excellent electrocatalytic activity for the hydrogen evolution reaction, with Ni-SS achieving a lower overpotential of − 270 ± 5 mV at 10 mA cm⁻2 compared to − 310 ± 7 mV for GO-Ni-SS. Nickel ; Nanoparticle ; Catalysis ; Materials science ; Nanotechnology ; Chemical engineering ; Metallurgy ; Chemistry ; Organic chemistry ; Engineering Catalytic Processes in Materials Science ; Advancements in Battery Materials ; Catalysis and Oxidation Reactions
Authors: Ilenia D’Abbrunzo | Elisabetta Venier | Francesca Selmin | Irena Škorić | Enrico Bernardo | Giuseppe Procida | Beatrice Perissutti
Source: Pharmaceutics (article, 2025-01-12)
Field: Chemistry — Physical and Theoretical Chemistry

Stability of Ternary Drug–Drug–Drug Coamorphous Systems Obtained Through Mechanochemistry <b>Background/Objectives:</b> This study investigates the preparation of coamorphous systems composed entirely of active pharmaceutical ingredients (APIs), namely praziquantel, niclosamide, and mebendazole. The objective was to formulate and characterize binary and ternary coamorphous systems to evaluate their structural, thermal, and stability properties. <b>Methods:</b> Ten different mixtures (binary and ternary) were designed through a mixture design approach and prepared using a sustainable, one-step neat grinding process in a lab-scale vibrational mill. The systems were prepared reproducibly within 4 h across the entire experimental domain. Structural characterization was performed using PXRD and FTIR to confirm the absence of crystalline domains and the presence of molecular interactions. The glass transition temperature (T<sub>g</sub>) was theoretically calculated using the Gordon-Taylor equation for three-component systems and determined experimentally via DSC. Stability studies were conducted on seven systems under different storage conditions (-30 °C, 5 °C, 25 °C, and 40 °C) for six months. <b>Results:</b> PXRD analysis confirmed the formation of coamorphous systems with no crystalline phases. DSC revealed a single T<sub>g</sub> for most systems, indicating homogeneity. Stability studies demonstrated that five out of seven systems adhered to the "T<sub>g</sub>-50 °C" stability rule, remaining physically stable over six months. Recrystallization studies indicated diverse pathways: some systems reverted to their original crystalline phases, while others formed new entities such as cocrystals. <b>Conclusions:</b> This study highlights the feasibility of coamorphous systems composed of multiple APIs using a simple, solvent-free grinding approach. The findings underscore the importance of molecular interactions in determining stability and recrystallization behavior, offering insights for designing robust coamorphous formulations. Drug ; Mechanochemistry ; Ternary operation ; Pharmacology ; Chemistry ; Medicine ; Materials science ; Nanotechnology ; Computer science Crystallography and molecular interactions ; Crystallization and Solubility Studies ; Drug Solubulity and Delivery Systems
Authors: Jinghong Li | Yanbo Zhao | Donghong Yu | Chuanlang Zhan
Source: Laser & Photonics Review (article, 2025-04-26)
Field: Materials Science — Materials Chemistry

Recent Advances in <i>d</i>‐<i>f</i> Transition Lanthanide Complexes for Organic Light‐Emitting Diodes: Insights Into Structure–Luminescence Relationships Abstract Recently, d ‐ f transition lanthanide complexes have emerged as promising emitters with high exciton utilization efficiency (EUE) and short excited state lifetime simultaneously, demonstrating potential applications in organic light‐emitting diodes (OLEDs). First, the d ‐ f transition is parity‐allowed, resulting in short excited‐state lifetimes of the complexes in the nanosecond (ns) scale. Second, the 5 d orbitals are sensitive to ligand‐field environments, and their splitting can be finely tuned by the ligand field, enabling precise control of emission colors. Third, the spin‐allowed single‐electron transitions, such as those in open‐shell Ce(III) and Eu(II) complexes, help address the efficiency limitations arising from singlet and triplet excitons. To date, Ce(III)‐based blue OLEDs have achieved external quantum efficiencies (EQEs) exceeding 20% and brightness levels over 30 000 cd m −2 . However, OLEDs based on d ‐ f transition lanthanide complexes still face significant challenges, including color tunablility, photoluminescence quantum yields (PLQYs), and stability. This review first provides an introduction to OLEDs and luminescent materials. Next, an overview of the ligands used in d ‐ f transition lanthanide complexes is presented, covering four distinct ligands types. Finally, an in‐depth discussion explores the relationship between ligand structures, d ‐ f transition lanthanide complexes, and their photoluminescence (PL) and electroluminescence (EL) performance. Lanthanide ; Luminescence ; OLED ; Diode ; Materials science ; Optoelectronics ; Transition (genetics) ; Photochemistry ; Chemistry ; Nanotechnology ; Ion ; Organic chemistry Lanthanide and Transition Metal Complexes ; Organic Light-Emitting Diodes Research ; Magnetism in coordination complexes
Authors: Xiaofang Yang | Zhongyue Li | Mei Yang
Source: ChemPlusChem (review, 2025-05-12)
Field: Materials Science — Materials Chemistry

Crystalline Porous Materials for Gaseous Iodine Capture: A Comprehensive Review The growing reliance on nuclear energy necessitates efficient strategies for managing spent nuclear fuel, particularly the capture of volatile radioactive iodine, which poses significant environmental and health risks. Crystalline porous materials have emerged as promising candidates for iodine adsorption due to their high surface areas, tunable porosity, and abundant active sites. This review comprehensively summarizes recent advancements in the design and application of four classes of crystalline porous materials for iodine capture: metal-organic frameworks, covalent organic frameworks, hydrogen-bonded organic frameworks, and porous organic cages. The discussion focuses on key adsorption mechanisms, structural modifications, and functionalization strategies that enhance iodine adsorption capacity, retention, and recyclability. While significant progress has been made, challenges remain in scaling up synthesis, improving stability under industrial conditions, and achieving cost-effective large-scale applications. Future research should emphasize on scalable synthesis, industrial validation, and development of multifunctional adsorbents with enhanced selectivity and reusability. This review provides insights into the rational design of next-generation porous materials for efficient iodine capture, contributing to advancements in nuclear waste management and environmental sustainability. Reusability ; Adsorption ; Porosity ; Materials science ; Nanotechnology ; Metal-organic framework ; Porous medium ; Environmental science ; Computer science ; Chemistry ; Organic chemistry Covalent Organic Framework Applications ; Metal-Organic Frameworks: Synthesis and Applications ; Head and Neck Surgical Oncology
Authors: Wei Wang | Jun Tao | Kaiwen Tong | Zhiqiang Xu | Fuqi Zhong | Jianping Dong | Yanxia Chen | Zhengbing Fu | Caiqin Qin
Source: Molecules (article, 2025-01-08)
Field: Materials Science — Materials Chemistry

Effects of Four Sulfonate-Containing Additives and Hydroxyethyl Cellulose on the Properties of Electrolytic Copper Foils Ultrathin electrolytic copper foils with a thickness of 6 μm were prepared by a test machine using copper sulfate electrolyte with gelatin, hydroxyethyl cellulose (HEC), and sulfonic acid-containing organics as additives. The effects of four sulfonic acid-containing organic additives, sodium 3-mercaptopropanesulfonate (MPS), bis-(sodium sulfopropyl)-disulfide (SPS), sodium 3-[[(dimethylamino)thioxomethyl]thio]propanesulfonate (DPS), and sodium 3-((4,5-dihydrothiazol-2-yl)thio)propane-1-sulfonate (TPS), on the physical property of copper foils were investigated. The results show that all these additives can effectively improve the gloss and tensile strength of electrolytic copper foil, and the texture coefficients of Cu(111) selectivity increase. The synergistic use of HEC and TPS can effectively reduce the pinholes of copper foil. Copper ; Sulfonate ; Electrolyte ; Hydroxyethyl cellulose ; Materials science ; Sulfonic acid ; Ultimate tensile strength ; Sodium ; Cellulose ; Inorganic chemistry ; Ethyl cellulose ; Cellulose triacetate ; Copper plating ; Chemistry ; Polymer chemistry ; Nuclear chemistry ; Organic chemistry ; Composite material ; Polymer ; Layer (electronics) ; Electroplating Corrosion Behavior and Inhibition ; Electrodeposition and Electroless Coatings ; Copper Interconnects and Reliability
Authors: Yu Liu | Tobias Kleinhanns | Sharona Horta | Ewelina P. Dutkiewicz-Kopczynska | Shaoqing Lu | María Chiara Spadaro | Aziz Genç | Lei Chen | Khak Ho Lim | Min Hong | Jordi Arbiol | María Ibáñez
Source: Journal of the American Chemical Society (article, 2025-08-22)
Field: Materials Science — Materials Chemistry

Liquid–Solid Interface Reactions Drive Enhanced Thermoelectric Performance in Ag<sub>2</sub>Se Ag<sub>2</sub>Se is a promising n-type thermoelectric material, but its performance is limited by excessive carrier concentration, compositional inhomogeneity, and phase instability, challenges rooted in a narrow homogeneity range and uncontrolled Ag<sup>+</sup> diffusion in the superionic phase. Here, we address these issues by exploiting liquid-solid interface reactions using CdSe complexes that remove surface excess Ag to yield stoichiometric Ag<sub>2</sub>Se and generate CdSe nanodomains that inhibit Ag<sup>+</sup> diffusion and constrain grain growth. The resulting Ag<sub>2</sub>Se-CdSe nanocomposites exhibit a reproducible, stable figure of merit (<i>zT</i>) of 1.04 between 300 and 390 K. Beyond demonstrating high performance, we elucidate the interfacial chemical reactions that give rise to the observed microstructure and transport properties, providing a foundation for rationally engineering interfacial chemistry to tailor transport properties across diverse thermoelectric material systems. Thermoelectric effect ; Stoichiometry ; Chemistry ; Thermoelectric materials ; Homogeneity (statistics) ; Figure of merit ; Microstructure ; Grain boundary ; Solid solution ; Nanotechnology ; Phase (matter) ; Chemical engineering ; Chemical physics ; Materials science ; Crystallography ; Optoelectronics ; Physical chemistry ; Thermodynamics Advanced Thermoelectric Materials and Devices ; Quantum Dots Synthesis And Properties ; Chalcogenide Semiconductor Thin Films
Authors: Lorenzo Lombardi | Luigi Davide Gala | C. Esposito | Daniele Tammaro
Source: Comprehensive Reviews in Food Science and Food Safety (review, 2025-10-10)
Field: Materials Science — Materials Chemistry

Porous Architecture in 3D Food Printing: Advances in Formulation, Process Control, and Sustainable Structural Design 3D food printing offers precise control over the shape, texture, and nutritional profile of edible structures, enabling high customization. A key yet under-explored feature in this field is the internal porous architecture, which significantly affects mechanical strength, texture, and overall functionality. This review examines how ingredient formulation-particularly polysaccharides and proteins-and printing parameters such as temperature, flow rate, velocity, and nozzle diameter influence the formation of inter-strand macropores and intra-strand micropores. Emphasis is placed on pore-generation and stabilization techniques, especially freeze-drying and emulsion templating, which enable the creation of well-defined porous networks. The intentional design of hierarchical porosity-combining both macro- and micro-scale structures-emerges as a promising strategy for producing lightweight, mechanically robust, and sensorially rich food products. These porous architectures can reduce raw material consumption while maintaining consumer appeal, aligning with goals of food sustainability. In this context, porosity is not merely a structural attribute but a critical design variable for optimizing performance and environmental impact. By connecting internal structure with functional outcomes, this review aims to support the development of next-generation 3D-printed foods that are resource-efficient, nutritionally tailored, and aligned with sustainable production practices. Porosity ; Process (computing) ; Raw material ; Food industry ; Ingredient ; Emulsion ; Architecture ; Sustainability ; Nozzle Pickering emulsions and particle stabilization ; Electrospun Nanofibers in Biomedical Applications ; Additive Manufacturing and 3D Printing Technologies
Authors: Shujuan Jiang | Yongwei Wang | Guangping Zheng
Source: Nanomaterials (review, 2025-01-12)
Field: Materials Science — Materials Chemistry

Two-Dimensional Ferroelectric Materials: From Prediction to Applications Ferroelectric materials hold immense potential for diverse applications in sensors, actuators, memory storage, and microelectronics. The discovery of two-dimensional (2D) ferroelectrics, particularly ultrathin compounds with stable crystal structure and room-temperature ferroelectricity, has led to significant advancements in the field. However, challenges such as depolarization effects, low Curie temperature, and high energy barriers for polarization reversal remain in the development of 2D ferroelectrics with high performance. In this review, recent progress in the discovery and design of 2D ferroelectric materials is discussed, focusing on their properties, underlying mechanisms, and applications. Based on the work discussed in this review, we look ahead to theoretical prediction for 2D ferroelectric materials and their potential applications, such as the application in nonlinear optics. The progress in theoretical and experimental research could lead to the discovery and design of next-generation nanoelectronic and optoelectronic devices, facilitating the applications of 2D ferroelectric materials in emerging advanced technologies. Ferroelectricity ; Materials science ; Optoelectronics ; Dielectric Ferroelectric and Piezoelectric Materials ; Multiferroics and related materials ; 2D Materials and Applications
Authors: Rareș Bortnic | Ádám Szatmári | Tiberiu Dragoiu | Radu George Haţegan | Roman Atanasov | Lucian Barbu–Tudoran | C. Tiuşan | R. Ciceo-Lucacel | Roxana Dudric | Romulus Tetean
Source: Nanomaterials (article, 2025-07-25)
Field: Materials Science — Electronic, Optical and Magnetic Materials

The Influence of Light Rare-Earth Substitution on Electronic and Magnetic Properties of CoFe2O4 Nanoparticles Co<sub>0.95</sub>R<sub>0.05</sub>Fe<sub>2</sub>O<sub>4</sub> nanoparticles with R = La, Pr, Nd, Sm, and Eu were synthesized via an environmentally friendly sol-gel method. The prepared samples were studied using X-ray diffraction measurements (XRD), transmission electron microscopy (TEM), X-ray photoelectron microscopy (XPS), and magnetic measurements. All compounds were found to be single phases adopting a cubic <i>Fd-3m</i> structure. EDS analysis confirmed the presence of Co, Fe, R, and oxygen in all cases. The XPS measurements reveal that the Co 2<i>p</i> core-level spectra are characteristic for Co<sup>3+</sup> ions, as indicated by the 2<i>p</i><sub>3/2</sub> and 2<i>p</i><sub>1/2</sub> binding energies and spin-orbit splitting values. The analysis of the Fe 2<i>p</i> core-level spectra reveals the presence of both Fe<sup>3+</sup> and Fe<sup>2+</sup> ions in the investigated samples. The doped samples exhibit lower saturation magnetizations than the pristine sample. Very good agreement with the saturation magnetization values was obtained if we assumed that the light rare-earth ions occupy octahedral sites and their magnetic moments align parallel to those of the 3<i>d</i> transition metal ions. The ZFC-FC curves indicate that some nanoparticles remain superparamagnetic, while others exhibit ferrimagnetic ordering at room temperature, suggesting the presence of interparticle interactions. The M<sub>r</sub>/M<sub>s</sub> ratio at room temperature reflects the dominance of magnetostatic interactions. X-ray photoelectron spectroscopy ; Ferrimagnetism ; Superparamagnetism ; Materials science ; Analytical Chemistry (journal) ; Transmission electron microscopy ; Ion ; Nanoparticle ; Saturation (graph theory) ; Magnetization ; Nuclear magnetic resonance ; Nanotechnology ; Chemistry ; Magnetic field ; Physics Multiferroics and related materials ; Magnetic Properties and Synthesis of Ferrites ; Advanced Condensed Matter Physics
Authors: Xiang Cheng | Zhen Zhang | Yuanjian Huang | Fanglei Wang | Dandan Wang | Xianhai Lv | Xihao Chang
Source: Pest Management Science (article, 2025-01-16)
Field: Chemistry — Organic Chemistry

Design and development of pyrazol‐5‐ylbenzamide derivatives containing chiral oxazoline moiety as fungicides based on molecular docking Therefore, these derivatives are potential candidates for the development of novel chiral fungicides for crop protection. © 2025 Society of Chemical Industry. Moiety ; Oxazoline ; Docking (animal) ; Chemistry ; Combinatorial chemistry ; Stereochemistry ; Fungicide ; Biology ; Organic chemistry ; Botany ; Medicine ; Catalysis Synthesis and Biological Evaluation ; Fungal Plant Pathogen Control ; Synthesis and biological activity
Authors: Xue Sun | Bo Wu | Na Li | Bo Liu | Shijun Li | Liang Ma | Hangyu Zhang
Source: Gels (article, 2025-01-20)
Field: Materials Science — Biomaterials

Influence of Electrostatic Interactions on the Self-Assembly of Charged Peptides Peptides can be designed to self-assemble into predefined supramolecular nanostructures, which are then employed as biomaterials in a range of applications, including tissue engineering, drug delivery, and vaccination. However, current self-assembling peptide (SAP) hydrogels exhibit inadequate self-healing capacities and necessitate the use of sophisticated printing apparatus, rendering them unsuitable for 3D printing under physiological conditions. Here, we report a precisely designed charged peptide, Z5, with the object of investigating the impact of electrostatic interactions on the self-assembly and the rheological properties of the resulting hydrogels. This peptide displays salt-triggered self-assembly resulting in the formation of a nanofiber network with a high β-sheet content. The peptide self-assembly and the hydrogel properties can be modified according to the ionic environment. It is noteworthy that the Z5 hydrogel in normal saline (NS) shows exceptional self-healing properties, demonstrating the ability to recover its initial strength in seconds after the removal of shear force, thus rendering it an acceptable material for printing. In contrast, the strong salt shielding effect and the ionic cross-linking of Z5 hydrogels in PBS result in the bundling of peptide nanofibers, which impedes the recovery of the initial strength post-destruction. Furthermore, incorporating materials with varied charging properties into Z5 hydrogels can alter the electrostatic interactions among peptide nanofibers, further modulating the rheological properties and the printability of SAP hydrogels. Self-healing hydrogels ; Nanofiber ; Materials science ; Peptide ; Rheology ; Nanotechnology ; Self-assembly ; Ionic bonding ; Electrostatics ; Self-assembling peptide ; Chemical engineering ; Biophysics ; Chemistry ; Ion ; Polymer chemistry ; Composite material ; Organic chemistry Supramolecular Self-Assembly in Materials ; Polydiacetylene-based materials and applications ; RNA Interference and Gene Delivery
Authors: Xiao Meng | Yisheng He | Botyo Dimitrov | Bowen Jin | Zhenghua Zhu | Liang Yuan | Vladimir V. Tsukruk | Chunhong Ye
Source: Nature Communications (article, 2025-06-03)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Dynamic mechanical modulation of chiroptical structures via linearly assembled plasmonic nanoparticles on birefringent polymer films Plasmonic chiral materials exhibiting strong dynamic circular dichroism (CD) with a high asymmetric g-factor are desired for diverse optical applications such as optical communication, especially in near infrared (NIR) spectral range but rarely achieved. Here, we show a chiroptical flexible film composed of an array of linearly aligned plasmonic nanosphere chains with an elastic polymer substrate. These nanomaterials are capable of light polarization rotation up to 40° and a g-factor of 1.71 in NIR wavelength. Such high ellipticity stems from the interplay of high linear dichroism (LD) and linear birefringence (LB). The nanoparticle chains manifest LD at plasmonic resonance, which, combined with the stretching-induced LB of the elastic substrate providing phase retardance, as confirmed by simulation. The configuration offers dynamical and reversible tuning of all critical chiroptical characteristics, including handedness, magnitude, and frequency, via the assembly angle of plasmonic chains, chain length, and the stretching degree of substrates. This strategy is universally applicable to various polymer substrates by combining with plasmonic nanoparticle assembly, enabling the design of flexible chiroptical materials with strong and dynamically tunable chiroptical performance. Birefringence ; Plasmon ; Materials science ; Nanoparticle ; Modulation (music) ; Polymer ; Optoelectronics ; Nanotechnology ; Optics ; Composite material ; Physics Metamaterials and Metasurfaces Applications ; Polydiacetylene-based materials and applications ; Liquid Crystal Research Advancements