jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Sven Robijns | Julien Devos | Beatrice Baeckelmans | Tom De Frene | Mostafa Torka Beydokhti | Rodrigo de Oliveira Silva | Niels De Witte | Dimitrios Sakellariou | Tom Van Assche | Michiel Dusselier
Source: JACS Au (article, 2025-01-28)
Field: Chemistry — Inorganic Chemistry

Split Syntheses: Introducing Bottom-Up Control over Aluminum in SSZ-13 and ZSM-5 Zeolites Zeolite synthesis is known as a difficult-to-control process, with many degrees of freedom that have a partially uncharted impact on the final product. Due to this, many zeolite scientists have regarded the initial mixing (aging) stage as the only time at which the chemical composition of a zeolite synthesis mixture can be impacted without heavily disrupting the delicate equilibria that are at play during crystallization. Recently, however, this view has started to change, with innovative techniques such as charge density mismatch or electro-assisted synthesis showing that the addition of new elements to the reactor midsynthesis might lead to new and surprising outcomes. In this manuscript, we show that by intermittent removal of certain fractions, notably Al-rich solids or Si-rich liquids, from the reaction medium during an interzeolite conversion from FAU-to-CHA (and FAU-to-MFI), one can control the Si/Al ratio of the final product, without heavily impacting the reaction time, particle size, or divalent cation capacity of the final product. This approach was named "split synthesis" and has led to several insights. By removing some Si-rich liquid phase after 40 min of synthesis, the Si/Al ratio of the daughter zeolite was lowered to a value of 20 (starting from 40), while the divalent cation capacity, a performance indicator for several acid and metal-catalyzed reactions, was kept maximized. On the other hand, when Al-rich solids were removed after 40 min (and in some cases colloidal silica was supplemented), we were able to rapidly synthesize small SSZ-13 zeolites with Si/Al ratios up to 180. These high-Si SSZ-13 zeolites had particle sizes in the range 100-150 nm and are traditionally difficult to crystallize in hydroxide medium. They showed a great olefin yield (6%) in the conversion of CO<sub>2</sub> and H<sub>2</sub> with ZnZrOx as cocatalyst. ZSM-5 ; Aluminium ; Materials science ; Chemistry ; Zeolite ; Metallurgy ; Catalysis ; Organic chemistry Zeolite Catalysis and Synthesis ; Catalytic Processes in Materials Science ; Catalysis and Hydrodesulfurization Studies
Authors: Tatheer Zahra | Saleem Abbas | Junfei Ou | Tuti Mariana Lim | Aumber Abbas
Source: Materials (article, 2025-06-20)
Field: Materials Science — Materials Chemistry

Microstructure Engineered Nanoporous Copper for Enhanced Catalytic Degradation of Organic Pollutants in Wastewater Advanced oxidation processes offer bright potential for eliminating organic pollutants from wastewater, where the development of efficient catalysts revolves around deep understanding of the microstructure-property-performance relationship. In this study, we explore how microstructural engineering influences the catalytic performance of nanoporous copper (NPC) in degrading organic contaminants. By systematically tailoring the NPC microstructure, we achieve tunable three-dimensional porous architectures with nanoscale pores and macroscopic grains. This results in a homogeneous, bicontinuous pore-ligament network that is crucial for the oxidative degradation of the model pollutant methylene blue in the presence of hydrogen peroxide. The catalytic efficiency is assessed using ultraviolet-visible spectroscopy, which reveals first-order degradation kinetics with a rate constant <i>κ</i> = 44 × 10<sup>-3</sup> min<sup>-1</sup>, a 30-fold improvement over bulk copper foil, and a fourfold increase over copper nanoparticles. The superior performance is attributed to the high surface area, abundant active sites, and multiscale porosity of NPC. Additionally, the high step-edge density, nanoscale curvature, and enhanced crystallinity contribute to the catalyst's remarkable stability and reactivity. This study not only provides insights into microstructure-property-performance relationships in nanoporous catalysts but also offers an effective strategy for designing efficient and scalable materials for wastewater treatment and environmental applications. Nanoporous ; Pollutant ; Degradation (telecommunications) ; Copper ; Microstructure ; Wastewater ; Catalysis ; Materials science ; Chemical engineering ; Environmental chemistry ; Waste management ; Metallurgy ; Nanotechnology ; Chemistry ; Environmental science ; Environmental engineering ; Organic chemistry Nanoporous metals and alloys ; Nanomaterials for catalytic reactions ; Nanocluster Synthesis and Applications
Authors: Silvia Romano | Sorur Yazdanpanah | Orsolina Petillo | Raffaele Conte | Fabrizia Sepe | Gianfranco Peluso | Anna Calarco
Source: Gels (review, 2025-07-21)
Field: Materials Science — Biomaterials

Sustainable Hydrogels for Medical Applications: Biotechnological Innovations Supporting One Health The One Health paradigm-recognizing the interconnected health of humans, animals, and the environment-promotes the development of sustainable technologies that enhance human health while minimizing ecological impact. In this context, bio-based hydrogels have emerged as a promising class of biomaterials for advanced medical applications. Produced through biotechnological methods such as genetic engineering and microbial fermentation, these hydrogels are composed of renewable and biocompatible materials, including recombinant collagen, elastin, silk fibroin, bacterial cellulose, xanthan gum, and hyaluronic acid. Their high water content, structural tunability, and biodegradability make them ideal candidates for various biomedical applications such as wound healing, tissue regeneration, and the design of extracellular matrix (ECM)-mimicking scaffolds. By offering controlled mechanical properties, biocompatibility, and the potential for minimally invasive administration, sustainable hydrogels represent a strategic innovation for regenerative medicine and therapeutic interventions. This review discusses the characteristics and medical applications of these hydrogels, highlighting their role in advancing sustainable healthcare solutions within the One Health framework. Self-healing hydrogels ; Nanotechnology ; Business ; Materials science ; Data science ; Computer science ; Engineering ; Chemical engineering Electrospun Nanofibers in Biomedical Applications ; 3D Printing in Biomedical Research ; Hydrogels: synthesis, properties, applications
Authors: Anna V. Afanaseva | Alexander A. Vinogradov | Alexey A. Vinogradov | Mikhail E. Minyaev | Dmitry A. Pyatakov | Alexander N. Tavtorkin | Vladimir V. Bagrov | Pavel V. Ivchenko | Ilya E. Nifant’ev
Source: ChemSusChem (article, 2025-01-15)
Field: Chemistry — Inorganic Chemistry

The Impact of Ligand Structure and Reaction Temperature on Ethenolysis of Fatty Acid Methyl Esters Catalyzed by Spirocyclic Alkyl Amino Carbene Ru Complexes Spirocyclic alkyl amino carbene (SCAAC) Ru complexes demonstrate outstanding activity and selectivity in ethenolysis of methyl oleate (MO) or fatty acid methyl esters (FAMEs), and 5,6-dimethoxyindane derivative was the most active catalyst to date. For the further catalyst design, we proposed modifying the spirocyclic fragment by fusion of saturated carbo- or heterocycle, linked to the 5,6-positions of indane or 6,7- positions of tetralin. Another suggested way of the modification of SCAAC complex was the insertion of chromane fragment to the carbene ligand. Using an alternative approach to SCAAC ligand precursors, based on hydroformylation of indenes, dihydronaphthalenes and their analogs, new SCAAC complexes were synthesized, their cis-configuration was confirmed by XRD. Comparative study of new and known selected complexes in ethenolysis of FAMEs (84 wt% MO) revealed that each of SCAAC catalysts has a temperature optimum of activity. At 60 °C 0.5 ppm of the complex containing 1,2,3,4,5,6,7,8-octahydroanthracene spirocyclic fragment provided 56 % conversion of FAMEs with TON=1.1⋅10<sup>6</sup>; 0.25 ppm of this complex in ethenolysis of high-purity MO demonstrated the TON ~2⋅10<sup>6</sup>, leading among the catalysts under study. In ethenolysis of FAMEs chromane derivative showed TON of 4-6⋅10<sup>5</sup> and unprecedented temperature-independent 99.7-99.9 % selectivity at 15-60 °C. Carbene ; Alkyl ; Catalysis ; Chemistry ; Ligand (biochemistry) ; Amino acid ; Organic chemistry ; Combinatorial chemistry ; Medicinal chemistry ; Stereochemistry ; Biochemistry ; Receptor Asymmetric Hydrogenation and Catalysis ; Synthetic Organic Chemistry Methods ; Organometallic Complex Synthesis and Catalysis
Authors: Damilola C. Akintayo | Tunde L. Yusuf | Nonhlangabezo Mabuba
Source: Small (review, 2025-05-28)
Field: Materials Science — Materials Chemistry

Chalcogenide Materials in Water Purification: Advances in Adsorptive and Photocatalytic Removal of Organic Pollutants Chalcogenide-based materials, known for their unique physicochemical properties, emerge as promising solutions for the removal of hazardous organic pollutants, such as dyes, pharmaceuticals, pesticides, and herbicides, from water and wastewater. This review examines the latest developments in the synthesis, structural optimization, and application of chalcogenide materials for environmental remediation. The past decade has witnessed remarkable advances in controlling the composition and structure of chalcogenide materials at the atomic level. The development of precise synthetic methods enables the creation of complex hierarchical structures, heterojunctions, and hybrid materials, leading to significant improvements in photocatalytic efficiency, stability, and selectivity for various environmental applications. Key emphasis is placed on adsorption and photocatalysis as green technologies, offering efficient pathways for pollutant removal. Mechanistic insights into the interactions between chalcogenide materials and contaminants are explored, providing a comprehensive understanding of their performance. Furthermore, challenges such as toxicity, scalability, and operational stability are discussed alongside future prospects for integrating these materials into industrial-scale water treatment systems. This review aims to inspire continued innovation in sustainable water purification technologies using chalcogenides. Chalcogenide ; Photocatalysis ; Pollutant ; Materials science ; Water pollutants ; Portable water purification ; Environmental chemistry ; Nanotechnology ; Chemical engineering ; Environmental science ; Chemistry ; Catalysis ; Environmental engineering ; Organic chemistry ; Metallurgy Advanced Nanomaterials in Catalysis ; Advanced Photocatalysis Techniques ; Advanced biosensing and bioanalysis techniques
Authors: Wei Wang | Y. Frank Cheng | Xiaojiang Xie
Source: Chemical Communications (review, 2025-01-01)
Field: Materials Science — Materials Chemistry

Design and applications of photochromic compounds for quantitative chemical analysis and sensing Photochromic compounds, capable of reversibly switching between distinct molecular states upon light irradiation, have emerged as powerful tools for quantitative chemical analysis and sensing. This feature reviews recent advancements in this developing field, focusing on the design principles and applications of photoswitchable sensors. We begin with a concise overview of the fundamental photophysics and photochromism of key compound classes, and then discuss the mechanisms of analyte recognition and signal transduction, showcasing how light-induced isomerization modulates analyte binding and enhances signal contrast compared to conventional optical sensors. The unique sensitivity of the photoswitching process to the microenvironment is also explored. Finally, we outline future research directions and challenges for realizing the full potential of photochromic compounds in analytical chemistry related fields, including diagnostics, environmental monitoring, and materials science. Photochromism ; Nanotechnology ; Feature (linguistics) ; Chemistry ; Irradiation ; Materials science ; Computer science ; Physics Photochromic and Fluorescence Chemistry ; Molecular Sensors and Ion Detection ; Organic Chemistry Cycloaddition Reactions
Authors: Pierre Palamini | Alexandre A. Schoepfer | Jérôme Waser
Source: Angewandte Chemie International Edition (article, 2025-01-02)
Field: Chemistry — Organic Chemistry

Photocatalyzed Azidofunctionalization of Alkenes via Radical‐Polar Crossover The azidofunctionalization of alkenes under mild conditions using commercially available starting materials and easily accessible reagents is reported based on a radical-polar crossover strategy. A broad range of alkenes, including vinyl arenes, enamides, enol ethers, vinyl sulfides, and dehydroamino esters, were regioselectively functionalized with an azide and nucleophiles such as azoles, carboxylic acids, alcohols, phosphoric acids, oximes, and phenols. The method led to a more efficient synthesis of 1,2-azidofunctionalized pharmaceutical intermediates when compared to previous approaches, resulting in both reduction of step count and increase in overall yield. The scope and limitations of these transformations were further investigated through a standard unbiased selection of 15 substrate combinations out of 1,175,658 possible using a clustering technique. Chemistry ; Reagent ; Nucleophile ; Yield (engineering) ; Phenols ; Organic chemistry ; Enol ; Combinatorial chemistry ; Substrate (aquarium) ; Catalysis Radical Photochemical Reactions ; Sulfur-Based Synthesis Techniques ; Catalytic C–H Functionalization Methods
Authors: Samra Husremović | Óscar González | Berit H. Goodge | Lilia S. Xie | Zhizhi Kong | Wanlin Zhang | Sae Hee Ryu | Stephanie M. Ribet | Shannon S. Fender | Karen C. Bustillo | Chengyu Song | Jim Ciston | Takashi Taniguchi | Kenji Watanabe | Colin Ophus | Chris Jozwiak | Aaron Bostwick | Eli Rotenberg | D. Kwabena Bediako
Source: Nature Communications (article, 2025-01-31)
Field: Materials Science — Materials Chemistry

Tailored topotactic chemistry unlocks heterostructures of magnetic intercalation compounds The construction of thin film heterostructures has been a widely successful archetype for fabricating materials with emergent physical properties. This strategy is of particular importance for the design of multilayer magnetic architectures in which direct interfacial spin-spin interactions between magnetic phases in dissimilar layers lead to emergent and controllable magnetic behavior. However, crystallographic incommensurability and atomic-scale interfacial disorder can severely limit the types of materials amenable to this strategy, as well as the performance of these systems. Here, we demonstrate a method for synthesizing heterostructures comprising magnetic intercalation compounds of transition metal dichalcogenides (TMDs), through directed topotactic reaction of the TMD with a metal oxide. The mechanism of the intercalation reaction enables thermally initiated intercalation of the TMD from lithographically patterned oxide films, giving access to a family of multi-component magnetic architectures through the combination of deterministic van der Waals assembly and directed intercalation chemistry. Intercalation (chemistry) ; Heterojunction ; Oxide ; van der Waals force ; Materials science ; Nanotechnology ; Graphene ; Magnetism ; Chemical physics ; Chemistry ; Condensed matter physics ; Inorganic chemistry ; Optoelectronics ; Molecule ; Physics 2D Materials and Applications ; ZnO doping and properties ; Multiferroics and related materials
Authors: A. Antonelli | Francesco Palma
Source: Materials (review, 2025-10-30)
Field: Materials Science — Biomaterials

Nanocarrier-Based Delivery Systems for Natural Compounds Across Research Stages Natural compounds such as polyphenols, flavonoids, and terpenoids have long been explored for their therapeutic potential. They can act as antioxidants, limit inflammation, and influence cancer or neurodegenerative pathways. However, these benefits rarely translate directly into medical practice, as their solubility is poor, chemical stability is fragile, and metabolism is too fast. In recent years, nanotechnology has offered an alternative route. A wide range of materials, polymeric, inorganic, hybrid, or responsive to external stimuli, were designed to protect and deliver such molecules. Each platform features different preparation methods and release behaviors; all intended to extend circulation and increase tissue selectivity. Considerable attention was paid to targeting strategies, both passive and ligand-mediated, that enhance accumulation in diseased tissues. Preclinical studies have confirmed that encapsulation can raise the therapeutic index of phytochemicals against various conditions, including cancer, inflammation, microbial infections, and neurodegeneration. Still, translation to the clinic is far from resolved, limited by uncertainties over safety, manufacturing scale, and regulation. A parallel line of research now investigates biomimetic carriers, including vesicles derived from red blood cells and whole erythrocytes, which offer immune evasion and versatile loading capacity. The convergence of nanotechnology and natural product pharmacology, enriched by such biologically inspired designs, may open the way to more precise, multifunctional, and patient-tailored therapies. Natural product ; Blood circulation ; Drug delivery ; Cancer therapy ; Microsphere ; Systemic circulation Nanoparticle-Based Drug Delivery ; Nanoplatforms for cancer theranostics ; Erythrocyte Function and Pathophysiology
Authors: Xi Yan | Hongxing Zheng | Yan Li | Hui Cao | Daniel Phelan | Hao Zheng | Zhan Zhang | Hawoong Hong | Guanyi Wang | Yuzi Liu | Anand Bhattacharya | Hua Zhou | Dillon D. Fong
Source: Science Advances (article, 2025-01-01)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Superconductivity in an ultrathin multilayer nickelate We report the appearance of superconductivity in single-unit-cell Nd<sub>6</sub>Ni<sub>5</sub>O<sub>12</sub>, exhibiting a transition temperature similar to that of thicker films. In situ synchrotron x-ray scattering performed during growth of the parent phase, Nd<sub>6</sub>Ni<sub>5</sub>O<sub>16</sub>, shows that the necessary layer-by-layer deposition sequence does not follow the sequence of the formula unit but an alternate order due to the relative stability of the perovskite unit cell. We exploit this insight to grow ultrathin Nd<sub>6</sub>Ni<sub>5</sub>O<sub>16</sub> heterostructures and conduct in situ studies of topotactic reduction, finding that formation of the square-planar phase occurs rapidly and is highly sensitive to reduction temperature, with small deviations from the optimum condition leading to inhomogeneity and the loss of superconductivity. The fluorite layer within the unit cell facilitates reduction by initially stabilizing the square-planar phase in the upper half of the unit cell. Our findings provide insight into growth of the Ruddlesden-Popper nickelates, highlighting the need for in situ studies of the metastable phases key to superconductivity. Superconductivity ; Metastability ; Materials science ; Phase (matter) ; Heterojunction ; Synchrotron ; Planar ; Condensed matter physics ; Cuprate ; Fluorite ; Layer (electronics) ; Crystallography ; Nanotechnology ; Chemistry ; Optoelectronics ; Physics ; Optics Magnetic and transport properties of perovskites and related materials ; Advanced Condensed Matter Physics ; Physics of Superconductivity and Magnetism
Authors: Napaporn Roamcharern | Saphia A. L. Matthew | Daniel J. Brady | John A. Parkinson | Zahra Rattray | F. Philipp Seib
Source: ACS Biomaterials Science & Engineering (article, 2025-01-30)
Field: Materials Science — Biomaterials

Biomimetic Silk Nanoparticle Manufacture: Calcium Ion-Mediated Assembly Silk has emerged as an interesting candidate among protein-based nanocarriers due to its favorable properties, including biocompatibility and a broad spectrum of processing options to tune particle critical quality attributes. The silk protein conformation during storage in the middle silk gland of the silkworm is modulated by various factors, including the most abundant metallic ion, calcium ion (Ca<sup>2+</sup>). Here, we report spiking of liquid silk with calcium ions to modulate the silk nanoparticle size. Conformational and structural analyses of silk demonstrated Ca<sup>2+</sup>-induced silk assemblies that resulted in a liquid crystalline-like state, with the subsequent generation of β-sheet-enriched silk nanoparticles. Thioflavin T studies demonstrated that Ca<sup>2+</sup> effectively induces self-assembly and conformation changes that also increased model drug loading. Ca<sup>2+</sup> incorporation in the biopolymer feed significantly increased the nanoparticle production yield from 16 to 89%, while simultaneously enabling Ca<sup>2+</sup> concentration-dependent particle-size tuning with a narrow polydispersity index and altered zeta potential. The resulting silk nanoparticles displayed high biocompatibility in macrophages with baseline levels of cytotoxicity and cellular inflammation. Our strategy for manufacturing biomimetic silk nanoparticles enabled overall tuning of particle size and improved yields─features that are critical for particle-based nanomedicines. SILK ; Nanoparticle ; Materials science ; Calcium ; Nanotechnology ; Fibroin ; Composite material ; Metallurgy Silk-based biomaterials and applications ; Bone Tissue Engineering Materials ; Nonlinear Optical Materials Studies
Authors: Muhammad Yasir | Sung‐Ryong Kim
Source: Polymer Composites (article, 2025-02-26)
Field: Materials Science — Electronic, Optical and Magnetic Materials

<scp>3D</scp>‐structured polymer composites using advanced templating strategies for <scp>EMI</scp> shielding Abstract The increasing use of electronic devices has become the widespread problem of electromagnetic interference (EMI), which can disrupt the normal functioning of electronic devices and pose threats to people health. To overcome this issue, the creation of efficient, portable, and affordable EMI shielding materials has become significant. 3D‐structured polymer composites have become extremely promising options because of their flexibility, easy processing, and high shielding performance over 2D traditional composites. A superior EMI shielding effectiveness highly depends on the arrangement of high‐conductivity fillers in the composites. This review focuses on the role of advanced templating techniques including sacrificial templating, ice templating, emulsion templating, and 3D printing for the fabrication of 3D interconnected fillers in composites that offer high EMI shielding performance. These unique templating techniques are crucial because they allow the formation of desired complex, hierarchical structures that improve the composites conductivity. By creating highly ordered and porous structures, these methods minimize the filler loading, improve filler dispersion, and optimize conductive pathways through increased porosity and surface area for effective interaction with electromagnetic waves. This review offers a helpful guidance for creating the next‐generation EMI shielding conductive polymer composites for various applications in aerospace, automotive, biomedical, and electronics industries. Highlights Fabrication of Lightweight 3D‐Structure Polymer Composites for superior EMI shielding. Optimized Filler Arrangement using advanced templating and 3D printing techniques. Enhanced Porosity and Surface Area for improved EMI shielding effectiveness. Challenges and Future Directions in developing lightweight, affordable, and efficient EMI shielding materials for the electronics industry. Electromagnetic shielding ; Materials science ; EMI ; Fabrication ; Electrical conductor ; Composite material ; Electromagnetic interference ; Filler (materials) ; Electronics ; Porosity ; Computer science ; Electrical engineering ; Telecommunications ; Engineering Electromagnetic wave absorption materials ; Advanced Antenna and Metasurface Technologies