jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Iva Rezić | Maja Somogyi Škoc
Source: Polymers (review, 2025-05-23)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Nanofiber-Based Innovations in Energy Storage Systems Nanofibers have emerged as transformative materials in the field of energy storage, offering unique physicochemical properties such as high surface area, porosity, and tunable morphology. Recent advancements have also introduced genetically modified fibers-engineered at the biological level to produce functionalized nanostructures with customizable properties. These bioengineered nanofibers add a sustainable and potentially self-healing component to energy storage materials. This paper reviews key applications of conventional and genetically modified nanofibers in lithium-ion and sodium-ion batteries, supercapacitors, hybrid systems, and flexible energy storage with a focus on how genetic and molecular engineering of fibrous materials enables new capabilities in ion transport, electrode architecture, and device longevity. Together, these advances contribute to the development of next-generation energy storage systems with enhanced performance, biocompatibility, and sustainability. This review therefore critically examines the current state, advantages, and limitations of both synthetic and biopolymer-based materials in energy storage applications. It discusses recent technological innovations, such as polymer-nanoparticle composites, functionalized polymer matrices, and next-generation polymer electrolytes. Future research should prioritize enhancing conductivity, improving scalability, and reducing environmental impact, ensuring that polymer-based materials contribute to the development of more efficient and sustainable energy storage technologies. Energy storage ; Materials science ; Nanotechnology ; Nanofiber ; Supercapacitor ; Electrode ; Chemistry Supercapacitor Materials and Fabrication ; Electrospun Nanofibers in Biomedical Applications ; Advancements in Battery Materials
Authors: Aya A. Mouhamed | Ahmed Elsayed | Noha Mostafa | Amr M. Mahmoud | Amr ElShaer | Aya T. Soudi
Source: BMC Chemistry (article, 2025-10-27)
Field: Chemistry — Inorganic Chemistry

Rapid nanocatalytic approach for azo dye degradation using bi-ligand nickle based-metal organic frameworks A novel bi-ligand nickel-based metal-organic framework (Ni-BTC-PYDC MOF) was synthesized using benzene tricarboxylic acid (BTC) and pyridine-2,3-dicarboxylic acid (PYDC) as ligands. This MOF showed improved surface area, structural stability, and electron transfer compared to mono-ligand Ni-MOFs. Characterization by SEM, EDX, EDS mapping, XRD, and FT-IR confirmed its enhanced morphology and nickel content. The catalyst rapidly reduced methyl orange (MO) dye in water, achieving rapid and significant decolorization within 90 s using sodium borohydride (NaBH₄) under mild conditions. It maintained high activity over ten reuse cycles with minimal loss, performing best at pH 5 due to efficient hydride generation and proton-assisted electron transfer. These findings demonstrate that the bi-ligand Ni-MOF is a promising, stable, and reusable catalyst for removing toxic azo dyes from wastewater. Catalysis ; Methyl orange ; Sodium borohydride ; Metal-organic framework ; Benzene ; Degradation (telecommunications) ; Electron transfer ; Orange G Metal-Organic Frameworks: Synthesis and Applications ; Advanced Nanomaterials in Catalysis ; Nanomaterials for catalytic reactions
Authors: P. Arévalo-Cid | Lorena Alcaraz | Rui Sampaio | Félix. A. López-Gómez | P.A. Carvalho | M.F. Montemor | Marta M. Alves
Source: Journal of Energy Storage (article, 2025-01-31)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Biochar-Ni nanocomposites derived from broccoli as an efficient ecoconscious approach for sustainable supercapacitive materials The increasing need for energy storage systems in the transition to renewable energy is accelerating the search for sustainable raw materials, with hyperaccumulator plants offering unique, untapped sources by capturing and processing electroactive metals like nickel (Ni) into their carbon matrix. In this study, we investigated broccoli's ability to absorb and process Ni, a metal that significantly contributes to enhanced energy storage capacity. Unlike traditional phytoremediation, we focused on producing carbon-based materials with electrochemical performance rather than environmental recovery. To demonstrate our ecoconscious concept, broccoli plants were exposed to varying Ni concentrations (0, 0.4, 0.8, 1.6, and 3.2 g/L) over 10 weeks, producing shoot dry biomass with Ni contents from <20 to 492 mg Ni/kg. Following pyrolysis at 650 °C, the resulting biochar was used as electroactive material for supercapacitor applications. Surprisingly, the best performance was observed in plants with 152 mg Ni/kg, with the bionanocomposite exhibiting a specific capacitance of 38 F/g at the scan rate of 100 mV/s and excellent capacitance retention of 94 % over 5000 cycles at 10 A/g. The supercapacitor prototype presented a maximum energy density of 0.762 Wh/kg at 184 W/kg power density. This unexpected finding suggests altered plant metabolism as a potential explanation, offering new insights and raising scientific questions about engineering hyperaccumulator plants for sustainable energy storage applications. • Hyperaccumulators were grown in soil with cumulative Ni up to 3.2 g/L over 10 weeks • Shoots with Ni <20 to 492 mg Ni/kg were used as electrode material after pyrolysis • The best electrochemical performance was observed in shoots with 152 mg Ni/kg • This bionanocomposite exhibited a specific capacitance of 38 F/g at 100 mV/s • Altered plant metabolism and/or lignocellulosic depolymerisation were hypothesised to affect electrochemical metrics Biochar ; Nanocomposite ; Environmental science ; Materials science ; Business ; Natural resource economics ; Pulp and paper industry ; Chemical engineering ; Nanotechnology ; Economics ; Engineering ; Pyrolysis Supercapacitor Materials and Fabrication ; Adsorption and biosorption for pollutant removal ; Extraction and Separation Processes
Authors: Z. Y. Khattari
Source: Journal of the American Ceramic Society (article, 2025-04-03)
Field: Materials Science — Materials Chemistry

Tailoring structural and compositional influence on γ‐ray shielding efficiency of Zeolite frameworks Abstract Zeolites, a class of micro‐porous aluminosilicate minerals, exhibit unique structural and compositional characteristics that make them promising candidates for γ‐ray radiation shielding applications. This study investigates the suitability of selected Zeolite frameworks—Natrolite (NAT), Edingtonite (EDI), and Thomsonite (THO)—and their representative crystals, including Gonnardite, NAT, EDI, Kalborsite, and THO‐Sr. The shielding properties were assessed through their mass attenuation coefficients (MACs), linear attenuation coefficients (LACs), and effective atomic numbers ( Z eff ​s) over photon energy ranges of 0.015‒15.0 MeV. Kalborsite demonstrated superior low‐energy attenuation with a MAC of 10.84 cm 2 /g and a corresponding Z eff ​ of 15.78 at E = 0.015, outperforming other crystals such as EDI ( Z eff = 20.56, MAC = 6.692 cm 2 /g) and Gonnardite ( Z eff = 13.77, MAC = 7.622 cm 2 /g). At high photon energies, Kalborsite retained its advantage with the highest LAC (0.056 cm −1 ) among all samples. These findings highlight the critical influence of Zeolite density, Z eff ​, and SiO 2 ​ composition on their radiation shielding efficiency and demonstrate the potential of optimizing Zeolite frameworks for lightweight, effective shielding materials suitable for medical imaging, nuclear energy, and space exploration applications. Zeolite ; Electromagnetic shielding ; Materials science ; Radiation shielding ; Chemical engineering ; Composite material ; Chemistry ; Engineering ; Catalysis Radiation Shielding Materials Analysis ; X-ray Diffraction in Crystallography ; Graphite, nuclear technology, radiation studies
Authors: Nuaman F. Alheety | Sameer A. Awad | Mustafa A. Alheety | Mohanned Y. Darwesh | Jalal Abdulkareem Abbas | Rafâa Besbes
Source: Chemistry (article, 2025-12-19)
Field: Chemistry — Organic Chemistry

Benzimidazole Derivatives: A Review of Advances in Synthesis, Biological Potential, Computational Modelling, and Specialized Material Functions Benzimidazole derivatives are a privileged family of heterocyclic compounds that have remarkable structural diversity and find various pharmacological and industrial applications. In this article, we report on their synthetic procedures, ranging from classic condensation methodologies to modern green chemistry methodologies (microwave-assisted methods and catalyst-free methods). The biological significance of these derivatives is discussed, and their anticancer, antimicrobial, anti-inflammatory, antioxidant, antiparasitic, antiviral, antihypertensive, antidiabetic, and neuroprotective activities are reported. This article also reviews recent industrial applications, with special reference to hydrogen storage and environmental sustainability. The latest computational techniques, such as density functional theory (DFT), molecular docking, and molecular dynamics simulation, are particularly emphasized because they can be instrumental in understanding structure–activity relationships and rational drug design. In summary, the present review describes the importance of new benzimidazole derivatives, which are considered a different class of multitarget agents in medicinal chemistry and computational drug design. Benzimidazole ; Drug discovery ; Computational model ; Class (philosophy) Synthesis and biological activity ; Multicomponent Synthesis of Heterocycles ; Microwave-Assisted Synthesis and Applications
Authors: Waham Ashaier Laftah | Wan Aizan Wan Abdul Rahman | Akos Noel Ibrahim
Source: RSC Advances (article, 2025-01-01)
Field: Materials Science — Materials Chemistry

Effects of carbon nanotube and curing agent concentrations on the mechanical, thermal and electrical properties of polydimethylsiloxane: optimization and statistical analysis This study examined the combined impact of carbon nanotubes (CNTs) and curing agents on the mechanical properties (tensile strength and modulus of elasticity) and thermal and electrical conductivities of polydimethylsiloxane (PDMS) using statistical analysis. PDMS composites were created by varying the concentrations of CNTs (0% to 5%) and curing agents (0% to 0.5%), and their properties such as tensile strength, modulus of elasticity, and thermal and electrical conductivities were comprehensively analyzed. Mechanical tests revealed that adding 5% CNT and 0.5% curing agent increased the tensile strength by 50% and modulus of elasticity (Young's modulus) by 65%, indicating a substantial reinforcing effect. Thermal conductivity remarkably improved from 0.2 W m<sup>-1</sup> K<sup>-1</sup> in pure PDMS to 1.1 W m<sup>-1</sup> K<sup>-1</sup> in the composite containing 5% CNT and 0.5% curing agent. The electrical conductivity improved significantly from an insulating 10<sup>-14</sup> S m<sup>-1</sup> to 10<sup>-2</sup> S m<sup>-1</sup>. This indicated a shift to conductive PDMS at higher CNT concentrations. Statistical analysis showed that CNTs had more significant impact on electrical and thermal properties, while the curing agent mainly enhanced the mechanical stability. These results highlight the combined potential of CNTs and curing agents in modifying PDMS properties for advanced engineering applications. Polydimethylsiloxane ; Carbon nanotube ; Materials science ; Curing (chemistry) ; Ultimate tensile strength ; Composite material ; Elasticity (physics) ; Statistical analysis ; Thermal ; Electrical resistivity and conductivity ; Thermal conductivity ; Thermodynamics ; Mathematics Thermal properties of materials ; Carbon Nanotubes in Composites ; Smart Materials for Construction
Authors: Julia Soika | Carina Onneken | Thorben Wiegmann | Timo Stünkel | Tobias Morack | Leander Lindfeld | Marian Hebenbrock | Christian Mück‐Lichtenfeld | Johannes Neugebauer | Ryan Gilmour
Source: Nature Chemistry (article, 2025-07-17)
Field: Chemistry — Organic Chemistry

Energy transfer-enabled enantioselective photocyclization using a privileged Al–salen catalyst Chiral catalysts that can engage multiple substrates, via distinct ground-state activation modes, to deliver enantioenriched products with high levels of fidelity are often described as 'privileged'. Achieving generality in excited-state processes remains challenging, and efforts to identify privileged chiral photocatalysts are being intensively pursued. Aluminium-salen complexes are emergent contenders on account of their well-defined photophysical properties. Here we report the development of an enantioselective energy transfer (EnT) catalysis-enabled photocyclization of acrylanilides to expand the activation repertoire of Al-salen photocatalysts. This approach allows reactivity and enantioselectivity to be simultaneously regulated by an inexpensive, commercial chiral Al-salen complex upon irradiation at λ = 400 nm. Diverse cyclic products can be forged with high levels of enantioselectivity (up to 96:4 e.r.). Establishing this dichotomy in excited-state activation modes serves to consolidate the privileged status of chiral Al-salen complexes in enantioselective photocatalysis and to complement their ubiquity in ground-state regimes. Enantioselective synthesis ; Chemistry ; Excited state ; Catalysis ; Photocatalysis ; Reactivity (psychology) ; Reagent ; Combinatorial chemistry ; Photochemistry ; Nanotechnology ; Organic chemistry ; Materials science Radical Photochemical Reactions ; Advanced Photocatalysis Techniques ; Sulfur-Based Synthesis Techniques
Authors: Hiroto Iwasaki | Naoyuki Hoshiya | Yosuke Kishikawa | Jorge Escorihuela | Norio Shibata
Source: iScience (article, 2025-05-03)
Field: Chemistry — Inorganic Chemistry

Repurposing HFC-125 to tetrafluoroethylene: A step toward a more sustainable fluoropolymer feedstock strategy The urgency to reduce hydrofluorocarbon (HFC) emissions, particularly HFC-125 (pentafluoroethane, CF<sub>3</sub>CF<sub>2</sub>H), has driven efforts to develop sustainable alternatives. Herein, we present a method for converting HFC-125 into tetrafluoroethylene (TFE), an industrially valuable monomer for fluoropolymer production. Our approach uses potassium hexamethyldisilazide (KHMDS), optimizing reaction conditions at -50°C to achieve high TFE yields without any observable byproducts. This low-temperature method offers a safer and more sustainable alternative to traditional high-temperature processes for TFE production, which involve hazardous byproducts and complex handling. We also demonstrated that various chemical reactions using freshly generated TFE, including thiol addition, trifluorovinylation, radical addition, amination, alcohol addition, and polymerization, can be performed, extending the utility of this approach. Moreover, a continuous flow process for the conversion of HFC-125 to TFE at room temperature was achieved without cryogenic equipment. This dual-purpose solution addresses both environmental sustainability of fluorochemicals and the growing demand for fluoropolymers in various industries. Fluoropolymer ; Repurposing ; Tetrafluoroethylene ; Raw material ; Nanotechnology ; Materials science ; Polymer science ; Engineering ; Chemistry ; Waste management ; Organic chemistry ; Copolymer ; Composite material ; Polymer Inorganic Fluorides and Related Compounds ; Fluorine in Organic Chemistry ; Membrane Separation and Gas Transport
Authors: Zainab Y. Hussien | Akram Q. Moften | Mohammed Ali Abdulrehman
Source: Revue des composites et des matériaux avancés (article, 2025-04-30)
Field: Materials Science — Biomaterials

Review of Zirconia (ZrO₂) Biomedical Applications: Advanced Manufacturing Techniques and Materials Properties Zirconia (ZrO) has emerged as a pivotal biomaterial in bone and dental repair due to its exceptional mechanical properties, including high compressive strength, crack resistance via transition toughening, and an optimal elastic modulus, alongside remarkable biocompatibility and corrosion resistance.This review highlights advancements in zirconia processing techniques-such as sintering, CAD/CAM, 3D printing, and powder processing-that enhance its microstructural integrity and mechanical performance.Clinical applications in dental restorations (crowns, bridges), orthopedic implants, and joint replacements are underscored by zirconia's non-inflammatory, non-allergic nature, ensuring long-term safety in vivo.Despite its strengths, challenges persist in fatigue resistance and wear under cyclic loads.Future directions focus on surface modification strategies and hybrid composites to improve biointegration and durability.By addressing these limitations, zirconia is poised to expand its role in next-generation biomedical implants, balancing innovation with clinical reliability. Cubic zirconia ; Materials science ; Nanotechnology ; Metallurgy ; Ceramic Electrospun Nanofibers in Biomedical Applications ; Fuel Cells and Related Materials
Authors: P. Moreira | Davide Carvalho | Rodrigo Abreu | María D. Alba | J. Ramírez‐Rico | Elvira Fortunato | Rodrigo Martins | Joana V. Pinto | Emanuel Carlos | João Coelho
Source: Journal of Physics Energy (article, 2025-04-08)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Graphene exfoliation in cyrene for the sustainable production of microsupercapacitors Abstract Graphene and its composites have attracted much attention for applications in energy storage systems. However, the toxic solvents required for the exfoliation process have hampered the exploitation of its properties. In this work, graphene dispersions are obtained via liquid phase exfoliation (LPE) of graphite in cyrene, an environmentally friendly solvent with solubility parameters like those of N-methyl-2-pirrolidone. The obtained dispersions with a concentration of 0.2 mg ml −1 comprised multilayered graphene sheets with lateral sizes in the hundreds of nanometers, as confirmed by scanning electron microscopy, transmission electron microscopy, and Raman spectroscopy. Mixing the obtained dispersions with ethanol made it possible to collect the graphene, which was redispersed in 2-Propanol. This active material was used to fabricate supercapacitor electrodes using a scalable spray deposition method on carbon nanotube (CNT) current collectors with the aid of vinyl masks. The device, tested with a PVA/LiCl gel electrolyte, achieved a specific capacitance of 3.4 mF cm −2 (0.015 mA cm −2 ). In addition, the devices show excellent cycling stability (&gt;10 000 cycles at 0.5 mA cm −2 ) and good mechanical properties, losing less than 10% of initial capacitance after 1000 bending cycles. This work demonstrates the adaptability of liquid-phase exfoliation to produce graphene sustainably, providing the proof-of-concept for further 2D materials processing and green microsupercapacitor (MSC) fabrication. Exfoliation joint ; Graphene ; Production (economics) ; Materials science ; Nanotechnology Supercapacitor Materials and Fabrication
Authors: Kaiyuan Fan | Huazhi Gu | Chenghao Wang | Huimin Zhou | Siyuan Dong | Wenqi Zhao | Yousi Chen | Xigao Jian | Cheng Liu
Source: Advanced Composites and Hybrid Materials (article, 2025-07-01)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Magnetic-field induced vertically oriented structure engineering for significantly enhanced electromagnetic absorption Magnetic chains impart composites with excellent low-frequency electromagnetic absorption (EMA) performance for 5G applications, however, it remains a challenge to further enhance EMA performance at lower filler contents through structural design. Therefore, a vertically oriented structure of FeCo chains in a polydimethylsiloxane (PDMS) matrix is initially fabricated through a magnetically induced hot-pressing method. FeCo possesses the highest saturation magnetization (238.67 emu·g⁻1, compared to 105 emu·g⁻1 of the widely used CoNi) and superior permeability among other ferromagnetic chains. The composite exhibits a minimum reflection loss of -46.8 dB and a maximum bandwidth of 6.20 GHz at 1.2 mm, fully encompassing the Ku band. The oriented composites exhibit significantly broader bandwidths at thinner thicknesses, with 1.2 GHz at 3.8 mm and 1.96 GHz at 2.8 mm, compared to 0.85 GHz at 4.3 mm and 1.45 GHz at 3.2 mm of unoriented counterparts, covering n77, n78, and n79 bands in 5G communication, respectively. Moreover, the mechanism of property enhancement from the orientation design is thoroughly investigated. Additionally, oriented composites demonstrate a remarkably enhanced inter-plane thermal conductivity (1.06 W·m⁻1·K⁻1), representing 174% and 790% of that of unoriented configurations (0.61 W·m⁻1·K⁻1) and pure PDMS (0.134 W·m⁻1·K⁻1), respectively. This work provides theoretical and practical guidance on vertically structural engineering for boosting EMA and multifunction to promote the application for next-generation electronic devices. • For the first time, the vertically oriented structure of FeCo chains in polydimethylsiloxane (PDMS) matrix is fabricated through a magnetically induced hot-pressing method. • The oriented designed composites exhibit significantly enhanced electromagnetic absorption and inter-plane thermal conductivity, with a 'sluice' model revealing the properties augment mechanism, as evidenced by HFSS simulation. • FeCo ferromagnetic chains possess higher saturation magnetization and permeability than the widely used CoNi ferromagnetic chains. Electromagnetic field ; Absorption (acoustics) ; Magnetic field ; Materials science ; Engineering physics ; Engineering ; Composite material ; Physics Electromagnetic wave absorption materials ; Advanced Antenna and Metasurface Technologies ; Metamaterials and Metasurfaces Applications
Authors: Dimpi Gupta | Divyanshu Singh | Anushka Koranne | Chandani Singh | Sunil Kumar Singh | Rajat Pratap Singh | Ashish Kumar Singh
Source: Materials Advances (article, 2025-01-01)
Field: Materials Science — Biomaterials

Chromic Schiff bases: transformative stimuli-responsive systems for next-generation soft materials Schiff bases, with intrinsic multi–stimuli responsiveness, are central to next-generation soft materials. They enable self-repair, sensing, and adaptation. This review explores underlying mechanisms and tactics to boost their performance. Transformative learning ; Communication ; Computer science ; Psychology ; Developmental psychology biodegradable polymer synthesis and properties ; Silicone and Siloxane Chemistry ; Polymer composites and self-healing