jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Aruna Jyothi Kora
Source: BioNanoScience (article, 2025-07-26)
Field: Materials Science — Materials Chemistry

Plant Gum Synthesized Phytogenic Silver and Palladium Nanoparticles Towards Decolourization of Rhodamine B and Methylene Blue Dyes Nanoparticles have gathered significant attention in current years for their versatile applications, including their use as catalysts for dye decolourization. Rhodamine B (RB) and methylene blue (MB) are common dyes employed in pulp, paper, textile, paint, pharma and other industries and their decolourization is essential to prevent environmental pollution. In this context, silver nanoparticles (Ag NP) of 5 nm and palladium nanoparticles (Pd NP) of 7 nm size were produced utilizing plant gum kondagogu as a reducing and stabilizing agent by pressure cooker autoclaving at optimal conditions. The synthesized NP were utilized as catalysts for the decolourization of RB and MB with sodium borohydride. The effect of varying concentration levels of Ag NP (0.5–5 µg/mL), Pd NP (0.025–0.3 µg/mL) and RB (2.5–7.5 µg/mL) and MB (5–15 µg/mL); and reaction time (1–8/0.25–2 min) was investigated at ambient conditions. Ag NP and Pd NP showed corresponding rate constant (k) values of 0.189 min−1 and 0.367 min−1; and 0.111 min−1 and 0.304 min−1 towards RB and MB, receptively. Efficient catalytic action is attributed to smaller particle size and exceptional stability of NP. Thus, the decolourization capability of NP can have wide functions in the ecofriendly ecological remediation of diverse wastewaters contaminated with noxious, mutagenic, carcinogenic, dangerous dyes and pigments. Methylene blue ; Rhodamine B ; Palladium ; Nuclear chemistry ; Chemistry ; Silver nanoparticle ; Rhodamine ; Nanoparticle ; Materials science ; Organic chemistry ; Nanotechnology ; Fluorescence ; Catalysis Nanoparticles: synthesis and applications ; Medicinal Plants and Neuroprotection ; Nanomaterials for catalytic reactions
Authors: Yahya El Hammoudani | Iliass Achoukhi | Khadija Haboubi | Abdellah El Youssfi | Chaimae Benaissa | Abdelhak Bourjila | Abdelaziz Touzani | Kawthar El Ahmadi | Hasnae El Allaoui | Achraf El Kasmi | Fouad Dimane
Source: Processes (article, 2025-12-29)
Field: Materials Science — Materials Chemistry

Graphene-Based Metal–Organic Frameworks for Advanced Wastewater Treatment: A Review of Synthesis, Characterization, and Micropollutant Removal The integration of graphene-based materials with metal–organic frameworks (G@MOFs) has emerged as a promising strategy for advanced wastewater treatment owing to their synergistic physicochemical properties. This review systematically compiles and critically analyzes recent advances in the synthesis, structural characterization, and application of G@MOFs for the removal of organic and inorganic micropollutants. Special emphasis is placed on how the unique combination of high surface area, tunable pore structures, and abundant active sites in G@MOFs enhances adsorption, photodegradation, and catalytic degradation mechanisms. Compared to conventional adsorbents and standalone MOFs, G@MOFs exhibit superior removal capacities, stability, and reusability. This paper also identifies key challenges in large-scale applications, regeneration, and potential environmental risks, providing a future outlook on optimizing synthesis routes and tailoring functional composites for sustainable water treatment technologies. The novelty of this review lies in providing the first dedicated, systematic evaluation of G@MOFs for wastewater micropollutant removal, integrating synthesis strategies, performance benchmarking, techno-economic aspects, environmental safety, and future application prospects into a unified framework. Sewage treatment ; Wastewater ; Water treatment ; Adsorption ; Key (lock) ; Novelty Covalent Organic Framework Applications ; Advanced oxidation water treatment ; Advanced Photocatalysis Techniques
Authors: Víctor Cepa-López | Miguel Sánchez‐Fuente | Alicia Moya | Rubén Mas‐Ballesté
Source: Preprints.org (preprint, 2025-04-09)
Field: Materials Science — Materials Chemistry

Recent Developments in the Use of Covalent Organic Frameworks for Photocatalytic Water Decontamination Water pollution by persistent organic and inorganic contaminants implies a significant trouble for ecosystems and public health. Organic substances such as dyes, pharmaceutical residues, pesticides, and phenolic compounds are increasingly detected in water due to industrial and agricultural activities. Alongside these, toxic heavy metals contribute to the complexity of water treatment challenges. Conventional remediation methods often fall short due to high operational costs or limited efficiency. In this context, photocatalysis has emerged as a promising approach for pollutant degradation in water under light irradiation. In this sense, covalent organic frameworks (COFs), a class of porous, crystalline materials formed by covalent linkage of organic units, offer great advantages as photocatalysts. Their tunable electronic properties, structural diversity, and high stability under aqueous conditions make them ideal for visible-light-driven processes. This review explores the structural features that govern the photocatalytic activity of COFs, including conjugation, bandgap modulation, and donor–acceptor structures. Mechanistic insights into photocatalytic degradation are also discussed. Finally, examples of pre-designed COFs are presented with their application in photodegradation of water pollutants and their main reactive oxygen species (ROS) involved in the photodegradation mechanism. Overall, this review aims to provide a foundation for the rational design of COFs in advanced water treatment technologies. Human decontamination ; Photocatalysis ; Covalent bond ; Metal-organic framework ; Environmental science ; Business ; Nanotechnology ; Waste management ; Environmental chemistry ; Chemistry ; Materials science ; Engineering ; Organic chemistry ; Adsorption Covalent Organic Framework Applications ; Advanced Photocatalysis Techniques ; TiO2 Photocatalysis and Solar Cells
Authors: Wenyu Zhang | Meiyu Zhang | Qiang Liu | Qing He
Source: Chemistry Letters (article, 2025-10-30)
Field: Materials Science — Materials Chemistry

Imidazolium-based covalent organic cages: from construction to functions Abstract Imidazolium-based covalent organic cages (COCs) have recently emerged as versatile (supra)molecular platforms that unite ionic functionality with structural precision. Their modular architectures and tunable cavities enable diverse applications ranging from anion recognition and iodine capture to fluorescence sensing, antibacterial activity, and catalysis. This mini review summarizes advances in the synthesis and functional development of imidazolium-based COCs, with particular emphasis on strategies such as direct quaternization cyclization, metal-templated photochemical cycloaddition, and dynamic imine condensation, as well as insights into their structure–function relationships. The article concludes with perspectives on improving synthetic efficiency, optimizing cavity design, and expanding biomedical and environmental applications. Covalent bond ; Imine ; Dynamic covalent chemistry ; Modular design ; Ionic bonding ; Fluorescence Covalent Organic Framework Applications ; Supramolecular Chemistry and Complexes ; Synthesis and Properties of Aromatic Compounds
Authors: Mateus A. Gonçalves | Felipe A. La Porta | Adilson C. Silva | Teodorico C. Ramalho | Sérgio Francisco de Aquino
Source: Ceramics (review, 2025-05-10)
Field: Chemistry — Analytical Chemistry

Molecularly Imprinted Polymer-Supported Ceramic Catalysts for Environmental Applications: A Comprehensive Review Molecularly imprinted polymers (MIPs) are synthetic polymers designed to exhibit selective recognition and binding capabilities toward target molecules and have been widely combined with advanced ceramic-based materials toward better performance in many catalytic applications of interest and beyond. What sets MIPs apart is their molecularly imprinted cavities, which are formed during polymerization in the presence of a template molecule. Upon template removal, these cavities retain the shape, size, and chemical functionality of the template molecule, allowing for highly specific recognition and binding of target molecules. In recent years, there has been a growing interest in leveraging these molecularly imprinted cavities not only for molecular recognition and sensing but also as catalytic sites and supports. Complementary to experimental studies, density functional theory (DFT) calculations are increasingly used to elucidate the molecular interactions, catalytic mechanisms, and optimize the design of MIP–ceramic catalysts. This review aims to provide a comprehensive overview of the current state of research on advanced ceramic-based catalysts supported by MIPs for environmental applications. Additionally, the review will discuss challenges and future directions in the field, focusing on enhancing the catalytic efficiency, stability, and scalability of MIP-based ceramic catalysts. By exploring these aspects, this review seeks to illustrate the promising role of MIP-modified ceramic materials in advancing the field of catalysis and catalytic supports. Molecularly imprinted polymer ; Ceramic ; Materials science ; Polymer ; Nanotechnology ; Catalysis ; Environmental science ; Chemistry ; Organic chemistry ; Composite material ; Selectivity Analytical chemistry methods development ; Catalytic Processes in Materials Science ; Adsorption and biosorption for pollutant removal
Authors: Weronika Nowicka | Wojciech Szot | Lidia Jasińska-Walc | R. Duchateau
Source: ACS Applied Polymer Materials (article, 2025-08-29)
Field: Chemistry — Organic Chemistry

High-Molecular-Weight Polyesters Mimicking Linear Low-Density Polyethylene: Mechanistic Insight and Structure–Property Relationship This work describes the synthesis of aliphatic hydrocarbon macrodiols and their use as building blocks in the synthesis of linear low-density polyethylene-like (LLDPE-like) polyesters. Ring-opening metathesis polymerization of cyclooctene and 3-hexylcyclooctene in the presence of (Z)-but-2-ene-1,4-diyl diacetate as a functionalized chain transfer agent (CTA), followed by hydrogenation, afforded macrodiols with varying amounts of branches. A mechanistic study revealed that the polymerization of 3-hexylcyclooctene is hampered by steric hindrance and requires at least two monomer regio-misinsertions per polymer chain. Using 10-undecen-1-ol as CTA greatly simplified the synthesis of the α,ω-dihydroxyl functionalized polycyclooctenes since no de-esterification is required. Polycondensation of hydrogenated α,ω-dihydroxyl functionalized poly(cyclooctene-co-3-hexylcyclooctene) and succinic anhydride proved to be a convenient way to synthesize high-molecular-weight LLDPE-like polyesters, showing thermomechanical performance comparable with commercially available LLDPE. The presence of only a limited number of ester functionalities and carboxylic chain end groups provides a significantly higher adhesion to aluminum than the LLDPE benchmark. Polyester ; Linear low-density polyethylene ; Property (philosophy) ; Materials science ; Polymer science ; Polyethylene ; Composite material ; Philosophy ; Epistemology Synthetic Organic Chemistry Methods ; biodegradable polymer synthesis and properties ; Polymer composites and self-healing
Authors: Diego Quiroga | Daniel Rodríguez | Ericsson Coy‐Barrera
Source: Molecules (article, 2025-11-12)
Field: Chemistry — Organic Chemistry

Recent Advances in the Synthesis and Applications of 1,2,3/1,2,5-Thiadiazole- and Benzo[c][1,2,5/1,2,3]thiadiazole-Type Compounds Thiadiazole derivatives, such as 1,2,3-thiadiazole, 1,2,5-thiadiazole, benzo[<i>c</i>][1,2,5]thiadiazole, and benzo[<i>d</i>][1,2,3]thiadiazole, have garnered significant attention due to their exceptional chemical and physical properties. These molecules, which contain sulfur and nitrogen atoms in their heterocyclic structure, have a variety of applications in agriculture, materials, and pharmaceuticals. In this review, we examine the most commonly used synthetic methods for these compounds, with a focus on the most recent techniques, including green synthesis, solid-phase chemistry, and catalytic processes, which enable greater efficiency, improved selectivity, and reduced environmental impact. Advances in the structural modification of these molecules to improve their photophysical properties and biocompatibility are also discussed. Finally, we highlight future research directions and emerging applications of thiadiazole derivatives across molecular medicine, nanotechnology, and agriculture, underscoring their potential to revolutionize multiple scientific and technological fields. Biocompatibility ; Molecule ; Sulfur ; Small molecule ; Biocompatible material Sulfur-Based Synthesis Techniques ; Synthesis and biological activity ; Multicomponent Synthesis of Heterocycles
Authors: Eyyub S. Mammadov | Aynur Abulfat Iskenderova | Eyyub Sabit Mammadov | N. F. Akhmedova | Fuad Sh. Kerimli | Sevda Baba Ismayilova
Source: BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS (article, 2025-12-26)
Field: Chemistry — Inorganic Chemistry

Alkylation of Benzene with Ethanol over ZSM-5 Based La–P Catalysts Benzene ethylation in the presence of HZSM-5 zeolites is a promising method for producing ethylbenzene. This study examined the effects of modifying lanthanum and phosphorus as additives to the HZSM-5 catalyst, tested in the temperature range of 300-500 °C, at a benzene to ethanol molar ratio of 2:1 in a hydrogen stream. The influence of promoters on acidity and pore structure was investigated using X-ray Diffraction (XRD), NH3 Temperature Programmed Desorption (NH3-TPD), Scanning Electron Microscope (SEM), Brunauer, Emmett, and Teller (BET), and Barrett-Joyner-Halenda (BJH). Among 4%La samples, 4%P/HZSM-5 demonstrated higher ethylbenzene selectivity and operational stability associated with a decrease in the density of strong acid sites and an increase in zeolite mesoporosity because of modification. Copyright © 2026 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). Catalysis ; Ethylbenzene ; Alkylation ; Benzene ; Selectivity ; Zeolite ; Ethanol ; Lanthanum Zeolite Catalysis and Synthesis ; Catalysis and Hydrodesulfurization Studies ; Catalysis for Biomass Conversion
Authors: Diego Mirani | Antonio J. Riquelme | Samuel Fauvel | Cyril Aumaître | Pascale Maldivi | Jacques Pécaut | Renaud Demadrille
Source: Materials Chemistry Frontiers (article, 2025-01-01)
Field: Materials Science — Materials Chemistry

Panchromatic photochromic push–pull dyes featuring a ferrocene donor group Photochromic molecules are light-responsive compounds that undergo reversible structural changes when exposed to light, producing isomers with different absorption spectra. Their ability to switch between molecular states with different optical properties makes them valuable for use in smart materials, anti-counterfeiting systems, optical data storage and optoelectronic devices. Diphenyl-naphthopyrans are a type of photochromic system that has attracted particular interest due to their tunable absorption spectra, fast response times and good fatigue resistance. However, their relatively narrow and selective absorption in the visible spectrum limits their use in applications requiring neutral colouration, such as smart windows and ophthalmic lenses. To address this limitation, we investigated which structural modifications could be employed to adjust the key optical and photochromic properties, such as the absorption range, colouring ability, and isomerisation kinetics. In this study, we present a strategy for obtaining novel push-pull photochromic dyes with wide, panchromatic absorption. Our approach involves replacing a phenyl unit with a ferrocene unit within the diphenyl-naphthopyran framework, while also adding an anchoring acceptor group to create a push-pull structure. We present the synthesis of five new dyes, detailing their optical and electrochemical properties. We investigated their photochromic behaviour in both solution and the solid state by grafting them onto metal oxide surfaces or dispersing them in a polymer matrix. Our results demonstrate that these dyes can be used to effectively produce panchromatic photochromic coatings. Furthermore, we show that some of these compounds act as efficient photosensitisers in dye-sensitised solar cells (DSSCs). Photochromism ; Panchromatic film ; Ferrocene ; Photochemistry ; Group (periodic table) ; Absorption (acoustics) ; Chemistry ; Solid-state ; Materials science ; Organic chemistry ; Electrochemistry ; Computer science ; Image (mathematics) ; Electrode ; Physical chemistry ; Composite material Photochromic and Fluorescence Chemistry ; Photoreceptor and optogenetics research ; Luminescence and Fluorescent Materials
Authors: Aynura N. Pashayeva | Ziyarat N. Pashayeva
Source: PPOR (article, 2025-01-01)
Field: Chemistry — Spectroscopy

Ionic liquids in proteomics: advances in protein solubilization, stabilisation, and mass spectrometry compatibility Ionic liquids, a class of organic salts with low volatility, tunable polarity, and strong solvation ability, are emerging as valuable tools in proteomics.Traditional surfactants, such as sodium dodecyl sulfate and urea, while effective at disrupting proteins, can interfere with enzymatic digestion and mass spectrometry analysis, limiting their utility in sensitive workflows.In contrast, ionic liquids provide highly customizable solvent environments that not only enhance protein solubility but also help preserve native structures, thereby supporting improved downstream analytical compatibility.Recent advances have demonstrated the effectiveness of ionic liquids in solubilising membrane-bound and aggregated proteins, enhancing proteolytic digestion, and improving peptide recovery for mass spectrometry workflows.Taskspecific ionic liquids with optimised ion-pairing chemistry and reduced viscosity enable analysis of challenging targets such as integral membrane proteins and low-input proteomes.Beyond their role in protein extraction and digestion, ionic liquids also show promise as stabilisers in protein formulation and storage, offering unique opportunities for maintaining structural integrity during handling and long-term preservation.Their biocompatibility and tunability reduce sample loss, minimise ion suppression, and improve quantification of low-abundance peptides.This review summarises recent advances in ionic liquid applications in proteomics, highlights mechanistic insights into protein interactions, and discusses current challenges and future directions for ionic liquid-based bioanalytical workflows Compatibility (geochemistry) ; Mass spectrometry ; Ionic liquid ; Tandem mass spectrometry ; Liquid chromatography–mass spectrometry Mass Spectrometry Techniques and Applications ; Analytical chemistry methods development ; Advanced Proteomics Techniques and Applications
Authors: Qing‐Miao Hu | Chiran Wang | Yuan Zhao | Awei Hu | Bo Liu
Source: Nature Communications (article, 2025-11-23)
Field: Materials Science — Materials Chemistry

Manipulating mechanical strength of isoreticular two-dimensional polyamide materials via multiple interactions Anisotropic two-dimensional (2D) materials exhibit huge difference in the directions parallel and vertical to the plane, especially in mechanical properties, and the connecting interactions among 2D nanosheets dominates the bulk mechanical strength owing to the challenge to prepare continuous, single-crystal 2D material film at macroscopic scale. Herein, we report a series of isoreticular 2D polyamide materials and reveal that smaller structural units result in higher Young's modulus, while multiple weak forces including the hydrogen-bond, π-π and mismatched electrostatic interactions endows the bulk 2D materials superior elasticity, hardness and yield strength. Specifically, The Young's modulus and hardness of 2D polyamide film (GH-TMC) reach 35.6 GPa and 2.0 GPa, and the elastic recovery rate is as high as 60%, overwhelming the most polymer, metal and metal-organic framework (MOF)/covalent organic framework (COF) materials. The synergy of rigid small-ring units, high-density H-bond networks, and π-π/electrostatic interactions enable these films to bridge the gap between inorganic and polymeric materials, making them ideal for flexible electronics, high-performance protective coatings, and energy devices. The strategy via designing molecular structure and interactions among nanosheets in 2D materials enable us fabricate super 2D materials with overall mechanical strength. Polyamide ; Mechanical strength ; Elastic modulus ; Anisotropy ; Modulus ; Polymer ; Yield (engineering) Covalent Organic Framework Applications ; Graphene research and applications ; 2D Materials and Applications
Authors: Aaron Lee | Julian Heck | Josef Goding | Robert Luxenhofer | Rylie A. Green
Source: Macromolecular Rapid Communications (article, 2025-01-27)
Field: Materials Science — Polymers and Plastics

Synthesis and Polymerization of Thiophene‐Bearing 2‐Oxazolines and 2‐Oxazines Intrinsically conductive polymers have garnered a great deal of attention for use in medical and bioelectronic applications. Despite this, challenges associated with the mechanical stability, processability, and fabrication of conducting polymers have limited their utility. To circumvent these limitations, thiophene substituted 2-oxazolines (2Ox) and 2-oxazines (2Ozi) are introduced, which can be polymerized to form a thermally stable and potentially melt-processable polymers as precursors for conductive polymers. A series of such monomers are synthesized and yields above 50% are obtained for gram scale reactions. The monomers can subsequently be polymerized using standard cationic ring-opening methods to yield thiophene-bearing poly(2-oxazoline)s (POx) and poly(2-oxazine)s (POzi) with narrow to moderate dispersity. The polymers exhibit glass transition temperatures between 50 °C and 100 °C and thermal stability beyond 250 °C. Moreover, random copolymers can be produced by introducing aliphatic 2-oxazolines during polymer synthesis, which facilitates tailoring of the polymer properties and may enable new applications in melt extrusion printing or electrospinning of precursors for conducting polymer systems. Overall, a facile approach is described for the synthesis of thiophene-functionalized monomers and polymers, providing covalent integration of thiophenes that opens new avenues toward the generation of functional and stimuli-responsive biomaterials. Polymerization ; Thiophene ; Polymer ; Materials science ; Monomer ; Cationic polymerization ; Dispersity ; Thermal stability ; Polymer chemistry ; Copolymer ; Conductive polymer ; Chemical engineering ; Organic chemistry ; Chemistry ; Composite material Conducting polymers and applications ; Synthesis and properties of polymers ; Organic Electronics and Photovoltaics