jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Maria‐Beatrice Coltelli | Annabel Serpico | Rosa María Medina Doménech | Mar Tronch | C. L. Galli | Paolo Sonzini | Clara Escrivà-Cerdán | S. Mastroianni | Andrea Lazzeri | Domenico Licursi | Anna Maria Raspolli Galletti
Source: Cosmetics (article, 2025-10-15)
Field: Materials Science — Biomaterials

Fatty Amines in Detergents and Cosmetics: Current State and Biocircular Perspectives Fatty amines are nitrogen-containing organic compounds synthesized from fatty acids, olefins, or alcohols, typically derived from natural oils or petrochemical sources. These molecules generally feature long hydrophobic alkyl chains ranging from C8 to C22 and can be positively charged on the nitrogen atom, which confer pronounced cationic surface activity. This property makes them highly effective as emulsifiers, conditioning agents, antistatic agents, and surfactants, particularly in industrial formulations and personal care products such as shampoos, conditioners, and creams. Historically, the production of fatty amines has relied heavily on petrochemical feedstocks, contributing significantly to greenhouse gas emissions, particularly CO2. In response to growing environmental concerns, there is an increasing shift toward renewable and sustainable raw materials, aligning with the principles of the circular economy. The cosmetics and detergent industries are at the forefront of this transition, actively integrating bio-based ingredients to minimize ecological impact. This review provides a comprehensive overview of the sources, synthetic pathways, and applications of fatty amines. It highlights their functional roles in detergents and cosmetic formulations and explores scientific and technological strategies aimed at enhancing sustainability across the fatty amine supply chain. Petrochemical ; Fatty acid ; Renewable energy ; Raw material ; Sustainability ; Antistatic agent ; Alkyl biodegradable polymer synthesis and properties ; Environmental Chemistry and Analysis ; Chemistry and Chemical Engineering
Authors: Monika Poonia | Amar Singh
Source: RSC Advances (article, 2025-01-01)
Field: Materials Science — Materials Chemistry

Carbon nanomaterials as smart interfaces in ultrathin films for high-performance electrochemical sensors: a critical review Carbon nanomaterials (CNMs) have emerged as pivotal components in the evolution of electrochemical sensors (ECSs), owing to their exceptional electrical conductivity, biocompatibility, and versatility across various analytical applications. Recent advancements in nanoengineered thin films of CNMs have yielded robust electrochemical sensing systems with enhanced analytical capabilities. This review article offers a detailed analysis of the use of nano-engineered CNMs thin films, with a particular focus on layer-by-layer assembly, Langmuir-Blodgett, and Langmuir-Schaefer deposition techniques for the development of high-performance ECSs. By presenting a holistic overview of the field, this article explores the diverse CNMs employed in ECS development, examining their synthesis and the ongoing quest to optimize material properties for enhanced sensor performance and technological advancement. It highlights the remarkable electrochemical properties of CNMs and their significant potential in the sensitive and selective detection of a wide array of substances, including chemicals, pharmaceutical compounds, biological analytes, environmental pollutants, and gases. This review summarizes the current status and future potential of nano-engineered CNM thin films in electrochemical sensing applications. Additionally, it highlights the need for further research to address challenges related to thin film stability, reproducibility, and material selectivity for sensing applications at the intersection of nanotechnology and electrochemical sensing. Nanomaterials ; Electrochemistry ; Nanotechnology ; Carbon fibers ; Materials science ; Chemistry ; Electrode ; Composite number ; Composite material ; Physical chemistry Carbon and Quantum Dots Applications ; Electrochemical sensors and biosensors ; Conducting polymers and applications
Authors: A. Chroneos | M.J.D. Rushton | John A. Kilner
Source: Journal of Solid State Electrochemistry (article, 2025-01-31)
Field: Materials Science — Materials Chemistry

Self-diffusion in fluorite-structured materials Abstract Fluorite-structured materials such as cerium dioxide (ceria or CeO 2 ), zirconium dioxide (zirconia or ZrO 2 ), uranium dioxide (urania or UO 2 ), and thorium dioxide (thoria or ThO 2 ) are technologically important for solid oxide fuel cells (SOFC) and nuclear fuels. As such, they have an important role in the future energy mix, and their properties under a range of pressure and temperature conditions need to be understood. There is significant research effort on the material properties of classic oxide systems, both from an experimental and theoretical perspective, aiming to improve these systems using doping or external parameters such as strain. Here, we briefly review cation and oxygen diffusion in fluorite-structured materials. Emphasis is given on the impact on the diffusion of external parameters such as strain. Fluorite ; Uranium dioxide ; Cerium ; Zirconium dioxide ; Materials science ; Thorium dioxide ; Oxide ; Cubic zirconia ; Diffusion ; Cerium oxide ; Depleted uranium ; Nuclear fuel ; Solid oxide fuel cell ; Cermet ; Chemical engineering ; Uranium ; Metallurgy ; Nuclear chemistry ; Ceramic ; Chemistry ; Thermodynamics ; Physical chemistry Advancements in Solid Oxide Fuel Cells ; Nuclear Materials and Properties ; Electronic and Structural Properties of Oxides
Authors: Yuchen Jin | Xiaoyuan Zhang | Xin Zhao | Youyin Xu | Gang Wei | Zhiqiang Su
Source: Small (review, 2025-07-01)
Field: Materials Science — Materials Chemistry

Two‐Dimensional Biomaterials Applied as Functional Bio‐Platforms and Devices: Revolutionizing Biomedical Applications Two-dimensional biomaterials (2DBMs), both synthetic and biological, have garnered significant attention due to their unique properties and versatile applications, particularly in biomedical engineering. This review provides an overview of both synthetic and biological 2DBMs, focusing on their fabrication methods, properties, and integration strategies for advanced device applications. The review first analyzes synthetic two-dimensional nanomaterials (2DNMs) such as graphene, transition metal dichalcogenides, black phosphorus, 2D metal oxides, and MXenes, exploring their properties and functionalization regulation (including covalent and non-covalent bonding, polymer bridging, and the incorporation of biorecognition elements). Next, the review discusses biological 2DBMs, highlighting their unique structures and synthesis processes. Strategies for tailoring these materials, such as surface functionalization, heterojunction formation, and integration with other nanostructures, are also covered. Moreover, the review outlines the fabrication approaches for 2DBM-based devices, covering chemical vapor deposition, templated synthesis, self-assembly, 3D printing, electrospinning, and liquid-phase spalling. Furthermore, the biomedical applications of 2DBM-based bio-platforms and devices are presented, where their roles in drug delivery, tissue engineering, bioimaging, diagnostics, biosensing, and neural interfaces are discussed in detail. Finally, the review concludes with insights into the current challenges and future directions for the development of 2DBM-based platforms and devices, emphasizing their potential to revolutionize healthcare and diagnostics. Nanotechnology ; Materials science ; Biointerface ; Surface modification ; MXenes ; Biomimetics ; Nanomaterials ; Engineering ; Mechanical engineering MXene and MAX Phase Materials ; Graphene and Nanomaterials Applications ; 2D Materials and Applications
Authors: Pau Ferri | Pieter Cnudde | Manuel Moliner | Véronique Van Speybroeck | Mercedes Boronat
Source: JACS Au (article, 2025-03-07)
Field: Chemistry — Inorganic Chemistry

Computational Modeling of the Mobility, Stability, and Al Positioning Ability of Cyclic Cationic Organic Structure-Directing Agents in AEI Zeolite The stability and mobility of a set of organic structure-directing agents (OSDAs) with different molecular geometries and charge distribution confined within the pear-like cavities of neutral and Al-containing models of AEI zeolites have been investigated by using static density functional theory calculations and ab initio molecular dynamics simulations. The objective is to identify the role of electrostatic interactions between the OSDAs' positive charge at N<sup>+</sup> atoms and the anionic framework AlO<sub>4</sub> <sup>-</sup> centers on the preferential stabilization of Al at specific crystallographic positions, opening the possibility to modulate the Al distribution in AEI zeolites. We find that several classical piperidinium-based OSDAs with diverse methyl-substituent patterns in the N-containing ring but a symmetrical charge distribution, as well as bulkier nonclassical azoniabicycle-heptane-based OSDAs with the positive charge asymmetrically located at one side of the molecule, behave similarly. All of them remain almost immobile at the center of the <i>aei</i> cavity along the simulations and always stabilize Al preferentially at the T1 crystallographic position. In contrast, an azabicyclo-octane-based OSDA with the positive charge located outside a cyclo-octane ring lacking substituents exhibits an enhanced mobility that includes full rotation within the <i>aei</i> cage and the ability to reach the regions of the cavity not accessible to the other OSDAs investigated. As a result, this highly mobile OSDA preferentially stabilizes Al in the T3 site, which might lead to differences in catalyst activity and stability for zeolite samples synthesized using this OSDA. Octane ; Zeolite ; Materials science ; Density functional theory ; Substituent ; Charge density ; Ring (chemistry) ; Molecular dynamics ; Crystallography ; Heptane ; Cationic polymerization ; Chemical physics ; Computational chemistry ; Chemistry ; Stereochemistry ; Catalysis ; Physics ; Organic chemistry Zeolite Catalysis and Synthesis ; Catalysis and Hydrodesulfurization Studies ; Ammonia Synthesis and Nitrogen Reduction
Authors: Nurlan Idrissov | N. K. Aidarbekov | Zhengisbek Kuspanov | Kydyr Askaruly | Olga Tsurtsumia | К. А. Кутербеков | Zhassulan Zeinulla | Кенжебатыр Бекмырза | Asset Kabyshev | М. М. Кубенова | Aigerim Serik
Source: Nanomaterials (article, 2025-10-01)
Field: Materials Science — Materials Chemistry

Effect of Metal Modification of Activated Carbon on the Hydrogen Adsorption Capacity This study investigates the hydrogen adsorption performance of activated carbon (AC) derived from rice husks and modified with magnesium and nickel salts. Adsorption isotherms were recorded at 25 °C and 50 °C up to 80 bar, simulating practical storage conditions. The unmodified AC exhibited the highest hydrogen uptake (0.62 wt% at 25 °C), attributed to its high surface area and dominant ultramicroporosity (<0.9 nm). Modifications with Mg and Ni reduced adsorption capacity, likely due to partial pore blockage and decreased surface functionality, as confirmed by FTIR, Raman, and XRD analyses. Despite this, all samples demonstrated stable cyclic adsorption-desorption behavior and consistent isotherm profiles. Hysteresis observed in the modified samples suggests capillary condensation within mesopores. Thermodynamic analysis confirmed the exothermic nature of hydrogen adsorption. Among the modified materials, ACM10 (Mg-modified) exhibited the best performance (0.54 wt%), highlighting the importance of optimizing the metal content. The obtained results indicate that the micropore size distribution and accessible surface functionality critically govern the hydrogen storage capacity, suggesting that unmodified AC is a promising candidate for low-temperature hydrogen storage systems. Hydrogen storage ; Adsorption ; Activated carbon ; Hydrogen ; Nickel ; Magnesium ; Microporous material ; Metal Hydrogen Storage and Materials ; Supercapacitor Materials and Fabrication ; Ammonia Synthesis and Nitrogen Reduction
Authors: Tshiamo B. Leta | Jerry O. Adeyemi | Olaniyi Amos Fawole
Source: Plants (review, 2025-08-13)
Field: Materials Science — Materials Chemistry

Carbon Dot Nanoparticles Synthesized from Horticultural Extracts for Postharvest Shelf-Life Extension of Fruits and Vegetables The increasing demand for sustainable food preservation technologies has spurred interest in green-synthesized carbon dots (CDs) derived from horticultural produce, positioning them as a promising nanomaterial for prolonging the shelf life of perishable food products. Most of these green approaches offer renewable, low-cost nanoparticles with excellent ultraviolet (UV) light barrier capabilities, antioxidant, and antimicrobial properties. These features help protect food products from the growth of foodborne pathogens and retard oxidative spoilage to extend their shelf life through edible coatings and packaging. To this end, this review critically explores current breakthroughs in biosynthesis, characterization, and application of CDs generated from different agricultural extracts, the mechanism of action, and possible synergistic effects when paired with other food preservation agents, aligning with circular economic principles. Scalability challenges, regulatory limitations, and potential future directions are all explored to present a comprehensive understanding of the topic, paving the way for innovative preservation methods in the food industry. Food spoilage ; Shelf life ; Postharvest ; Active packaging ; Food packaging ; Food industry ; Business ; Food safety ; Food science ; Nanotechnology ; Biochemical engineering ; Environmental science ; Chemistry ; Materials science ; Engineering ; Biology ; Horticulture Carbon and Quantum Dots Applications ; Nanocluster Synthesis and Applications ; Advanced Nanomaterials in Catalysis
Authors: Holly A. Huellemeier | K. Hoffmann | Olinda Sidorow | Stephan Scholl | Wolfgang Augustin | Diethelm Johannsmann
Source: Journal of Applied Polymer Science (article, 2025-07-25)
Field: Materials Science — Surfaces, Coatings and Films

Fouling in Emulsion Polymerization: Fundamentals and Methods of Investigation ABSTRACT The current understanding of fouling in emulsion polymerization is summarized from an engineering perspective and from a physical‐chemistry perspective. Emulsion polymerization in semibatch mode offers better control over the number of particles and side reactions than batch mode. Both reaction fouling and particulate fouling are observed, the latter being related to coagulation. Thin fouling layers are not necessarily detrimental to the process. The conditions leading to thick layers, which eventually clog pipes, are topics of current research. The fouling material usually is soft because the reaction temperature is above the glass temperature of the polymers involved. At the time for formation, the layers may or may not be compact. They may age by compactification. Special attention is given to modern techniques to monitor fouling in situ. That includes the quartz crystal microbalance with dissipation monitoring (QCM‐D). Emulsion polymerization ; Fouling ; Emulsion ; Polymerization ; Polymer science ; Materials science ; Chemical engineering ; Polymer chemistry ; Chemistry ; Polymer ; Composite material ; Engineering ; Membrane Polymer Surface Interaction Studies ; Analytical Chemistry and Sensors ; Force Microscopy Techniques and Applications
Authors: C. E. Ogbonna | Doğa Kavaz | David B. Olawade | Yemi A. Adekunle
Source: Journal of Sol-Gel Science and Technology (article, 2025-08-25)
Field: Materials Science — Materials Chemistry

Novel green synthesis of ZnO, CaO, and ZnO-CaO hybrid nanocomposites using extract of Foeniculum vulgare (Fennel) stalks : characterization, mechanical stability, and biological activities Abstract Plant-mediated synthesis of nanoparticles is considered an eco-friendly and cost-effective approach to developing safer and more effective treatment strategies. The current study employed Foeniculum vulgare (FV) waste extract to mediate the green synthesis of Zinc oxide (ZnO) and Calcium oxide (CaO) nanoparticles (NPs) as well as their hybrid NPs (ZnO-CaO). The biosynthesised NPs were characterized using ultraviolet-visible (UV-Vis) spectroscopy, Fourier-transform infra-red (FTIR) spectroscopy, energy-dispersive X-ray analysis (EDX), X-ray diffraction (XRD), dynamic light scattering (DLS), and scanning electron microscopy (SEM). The influence of zeta potential, size, and turbidity on the NPs stability was studied. The synthesised NPs were also evaluated for their antioxidant, anti-inflammatory, and antibacterial activities. UV-visible spectroscopy confirmed the synthesis of FV-ZnO, FV-CaO, and FV-ZnO-CaO hybrid NPs using a surface plasmon resonance peak at 271.5, 269.5, and 269 nm, respectively. FTIR analysis indicated that the plant extract contains phytochemicals that aid in the bio-reduction and stabilization of the NPs. EDX confirmed the elemental composition, and XRD showed crystallinity of the NPs. FV-ZnO revealed a hexagonal crystalline structure, FV-CaO showed a cubic lattice structure, and FV-ZnO-CaO showed a mixed ratio of crystalline and cubic phase. SEM revealed distinct characteristics for the NPs with FV-ZnO-CaO showing spherical morphology. FV-ZnO-CaO and FV-ZnO NPs exhibited low turbidity and high zeta potentials, indicating better dispersion and more stable suspensions. FV-ZnO-CaO exhibited better antibacterial activity against Methicillin-resistant Staphylococcus aureus than their monometallic oxide forms. Mild to moderate scavenging activities were observed for the NPs. FV-ZnO-CaO showed a 91% ability to mitigate against albumin protein denaturation. The antibacterial, free radical scavenging and anti-albumin denaturation potentials of the FV-mediated NPs can be prospectively explored for more effective treatment options. Graphical Abstract Foeniculum ; Nanocomposite ; Characterization (materials science) ; Zinc ; Materials science ; Botany ; Nanotechnology ; Metallurgy ; Biology Nanoparticles: synthesis and applications ; Magnesium Oxide Properties and Applications
Authors: Cecilia Manrique | Tatiana M. Botero | Roger Solano | Carlos Mendoza | Adriana Echavarrı́a
Source: Journal of Porous Materials (article, 2025-02-01)
Field: Chemistry — Inorganic Chemistry

Efficient synthesis of nanosized zeolite Y utilizing gradual heating: post-synthesis modification and their catalytic performance in propylene oligomerization Abstract Producing nanosized zeolites Y has been restricted to a Si/Al ratio lower than 2.0, requiring prolonged crystallization periods. This study employed temperature ramps during nucleation and crystallization to synthesize nanosized zeolites Y with a Si/Al ratio of 2.4, ranging from 47 to 100 nm, in just one day. Sequential post-synthesis desilication and dealumination treatments were used to modify the pore structure and acidity of the zeolites, leading to hierarchical zeolite formation. These modifications enhanced the structural stability and porosity of the zeolites while preserving their high crystallinity. Desilicated zeolites, unlike dealuminated ones, possessed straighter and more uniform mesoporous within their crystals, with diameters smaller than 5 nm. Additionally, successive desilication produced a greater number of intracrystalline mesoporous. The solids obtained from both processes exhibited porosity within the zeolite structure connected to the external surface, potentially improving the mass transfer limitations of the original zeolite due to the lack of mesoporous. Catalysts were prepared using modified nanozeolites for evaluation in the propylene oligomerization reaction. Catalysts based on dealuminated and desilicated nanosized zeolite Y showed high conversions above 20%, especially for dealuminated zeolites with conversions of 50%. Additionally, the catalysts demonstrated selectivity towards hydrocarbons in the C5-C7 range, suggesting better diffusion and access of propylene molecules to the active sites, favoring the formation of medium-sized hydrocarbon fractions. Conversely, the formation of longer hydrocarbon chains (C12 + ) was not favored, possibly due to insufficient mesoporous for larger molecule diffusion and a distribution of acid sites that encourages the union of longer hydrocarbon chains. Catalysis ; Zeolite ; Materials science ; Chemical engineering ; Propylene oxide ; Nanotechnology ; Organic chemistry ; Chemistry ; Polymer ; Copolymer ; Composite material Zeolite Catalysis and Synthesis ; Catalytic Processes in Materials Science ; Mesoporous Materials and Catalysis
Authors: Gamal E. M. Nasr | M. A. Baiomy | A. Z. Taieb | Mayada E. Abdel Razek | M. Refai
Source: Scientific Reports (article, 2025-02-06)
Field: Materials Science — Materials Chemistry

Assessment of the performance of Ni carbon nanotube nano composite coatings and activated carbon for diesel exhaust treatment Diesel engines are essential in sectors such as transportation, agriculture, and power generation, offering benefits like fuel efficiency, high power output, and durability. However, their emissions (NO<sub>X</sub>, CO<sub>2</sub>, CO, HC, SO<sub>2</sub>, and PM) significantly contribute to air pollution, posing serious environmental and health risks. This study aimed to design and fabricate a unit that simulates diesel engine emissions and tests various purification materials. The unit consists of a combustion chamber, filtration media, and exhaust pipes, with materials such as activated carbon, activated carbon with magnesium oxide, and Ni-Carbon Nanotube (CNTs) nanocomposites tested under controlled combustion conditions to measure their pollutant removal efficiencies. Results showed that 100% activated carbon achieved pollutant removal efficiencies of 85.21% for CO<sub>2</sub>, 80.77% for CO, and 68.84% for HC. Combining activated carbon with magnesium oxide (AC: MgO) enhanced these efficiencies to 76.92% for CO<sub>2</sub>, 86.84% for CO, and 73.28% for HC. Ni-CNTs nanocomposites (at 0.2 concentration) demonstrated the highest performance, with removal efficiencies of 93.13% for CO<sub>2</sub>, 94.87% for CO, and 76.02% for HC. These results emphasize the potential of Ni-CNTs nanocomposites as highly efficient materials for reducing diesel exhaust emissions, contributing significantly to cleaner air, better public health, and more sustainable diesel technologies. Activated carbon ; Diesel exhaust ; Combustion ; Materials science ; Diesel engine ; Diesel fuel ; Carbon nanotube ; Nanocomposite ; Pollutant ; Chemical engineering ; Waste management ; Environmental science ; Chemistry ; Nanotechnology ; Organic chemistry ; Adsorption ; Automotive engineering Catalytic Processes in Materials Science ; Air Quality and Health Impacts ; Vehicle emissions and performance