jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Naila Zubair | Rasha Mohammed Sajet Al-Oqaili | Muhammad Junaid Yousaf | Aisha Siddique | Fuad A. Awwad | Emad A. A. Ismail | Farrah Shams | Adil Aldhahrani | Nizwa Itrat | Farhad Ali | Devendra Pratap Rao | Hina Khalid | Fawad Ali | Fawziah A. Al‐Salmi | Muneefah Abdullah Alenezi | Husna Irfan Thalib | Jumana H. Timraz
Source: Scientific Reports (article, 2025-11-23)
Field: Materials Science — Materials Chemistry

Morphology dependent antibacterial activity of zinc oxide nanoparticles against clinically relevant bacteria The present study focuses on the antibacterial activity of ZnO nanoparticles, evaluating variations based on morphology. Interest in ZnO nanoparticles arises from their high surface-to-volume ratio that enables effective interaction with bacterial cells. Their antibacterial properties depend on size and nanostructure, with enhanced activity attributed to increased surface area, promoting maximum contact with microbial membranes, cellular damage, and growth inhibition. Zinc oxide (ZnO) nanoparticles with two distinct shapes-ellipsoidal nanorods (Z1) and 3D microspheres (Z2)-were synthesized using a simple, template-free aqueous precipitation method. Zinc nitrate and hexamethylenetetramine (HMT) served as starting materials. The nanoparticles were characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), and thermogravimetric analysis (TGA). The point of zero charge (PZC) was determined by the salt addition method. SEM images showed that particle shape changed with reaction time. XRD confirmed a hexagonal wurtzite crystal structure, with average crystallite sizes of 22.09 nm for Z1 and 27.18 nm for Z2. FT-IR spectra showed Zn-O bond vibrations between 540 and 411 cm<sup>-1</sup>. Antibacterial activity was evaluated using the agar well diffusion method against Gram-positive (Streptococcus mutans, Staphylococcus aureus) and Gram-negative (Escherichia coli, Enterobacter cloacae) bacteria. The synthesized ZnO nanoparticles exhibited significantly higher antibacterial effects than commercial ZnO, which showed no activity at tested concentrations (0.25, 0.50, and 0.75 µg/µL). At 0.75 µg/µL, Z1 nanorods produced inhibition zones of 30 mm (E. coli), 28 mm (E. cloacae), 28 mm (S. mutans), and 30 mm (S. aureus). Z2 microspheres showed even stronger effects: 35 mm, 32 mm, 30 mm, and 31 mm, respectively. These findings demonstrate the superior antibacterial properties of the synthesized ZnO nanoparticles, particularly the 3D microspheres, highlighting their potential in antimicrobial coatings and biomedical applications. Antibacterial activity ; Zinc ; Nanoparticle ; Hexamethylenetetramine ; Nanorod ; Wurtzite crystal structure ; Scanning electron microscope ; Crystallite ZnO doping and properties ; Nanoparticles: synthesis and applications ; Magnesium Oxide Properties and Applications
Authors: Morayma Muñoz | D. Flores | Grace Morillo | Ricardo A. Narváez C. | A. Marcilla | Marco Rosero
Source: Sustainable Chemistry (article, 2025-11-03)
Field: Materials Science — Materials Chemistry

Comprehensive Review of SBA-15 Mesoporous Silica: Functionalization Strategies, Diffusion Mechanisms, and Emerging Applications Mesoporous materials have attracted increasing attention due to their ordered pore systems; tunable surface chemistry; and versatile applications in catalysis, adsorption, and environmental technologies. Among them, SBA-15 stands out for its large surface area, uniform mesopores, and high hydrothermal stability, which make it a promising platform for gas adsorption and mass transport studies. This review examines the functionalization of SBA-15 through strategies such as post-synthesis grafting and co-condensation, focusing on the introduction of amines, thiols, and organometallic species that enhance selectivity, adsorption capacity, and thermal stability. The discussion integrates classical diffusion models, including Fickian and Knudsen transport, with more advanced approaches such as the Maxwell–Stefan formalism, to describe molecular transport within mesoporous networks and highlight the role of van der Waals interactions in gas capture processes. Special emphasis is placed on the relationship between structural features and diffusive behavior, supported by recent advances in computational modeling and spectroscopic validation. Applications in CO2 capture, heterogeneous catalysis, drug delivery, and environmental remediation are critically assessed to illustrate the versatility of functionalized SBA-15. This review concludes by outlining future perspectives on the rational design of hierarchical and multifunctional mesoporous materials for clean energy conversion, pollutant removal, and biomedical applications. Surface modification ; Mesoporous material ; Adsorption ; Rational design ; Surface diffusion ; van der Waals force Mesoporous Materials and Catalysis ; Carbon Dioxide Capture Technologies ; Aerogels and thermal insulation
Authors: Tingke Fang | Annette von Jouanne | Alex Yokochi
Source: Energies (article, 2025-05-12)
Field: Materials Science — Materials Chemistry

Review of Electrochemical Systems for Grid Scale Power Generation and Conversion: Low- and High-Temperature Fuel Cells and Electrolysis Processes This review paper presents an overview of fuel cell electrochemical systems that can be used for clean large-scale power generation and energy storage as global energy concerns regarding emissions and greenhouse gases escalate. The fundamental thermochemical and operational principles of fuel cell power generation and electrolyzer technologies are discussed with a focus on high-temperature solid oxide fuel cells (SOFCs) and solid oxide electrolysis cells (SOECs) that are best suited for grid scale energy generation. SOFCs and SOECs share similar promising characteristics and have the potential to revolutionize energy conversion and storage due to improved energy efficiency and reduced carbon emissions. Electrochemical and thermodynamic foundations are presented while exploring energy conversion mechanisms, electric parameters, and efficiency in comparison with conventional power generation systems. Methods of converting hydrocarbon fuels to chemicals that can serve as fuel cell fuels are also presented. Key fuel cell challenges are also discussed, including degradation, thermal cycling, and long-term stability. The latest advancements, including in materials selection research, design, and manufacturing methods, are also presented, as they are essential for unlocking the full potential of these technologies and achieving a sustainable, near zero-emission energy future. Electrolysis ; Fuel cells ; Electrochemistry ; Scale (ratio) ; Grid ; Environmental science ; Power grid ; Power (physics) ; Process engineering ; Materials science ; Nuclear engineering ; Electrical engineering ; Chemical engineering ; Chemistry ; Engineering ; Physics ; Thermodynamics ; Electrode ; Geology Advancements in Solid Oxide Fuel Cells ; Fuel Cells and Related Materials ; Electrocatalysts for Energy Conversion
Authors: Hafiz Khurram Shahzad | Zheng-Ying Huang | Sasan Ghashghaie | Han Liu | Ghulam Muhyodin | Mohsen Tamtaji | H. Li | Fung‐Yi Chan | C.Y. Chung
Source: CrystEngComm (article, 2025-01-01)
Field: Materials Science — Materials Chemistry

Systematic analysis of reaction parameters driving the hydrothermal growth of layered VS<sub>2</sub> Parametric optimization of VS 2 synthesis via hydrothermal method. Hydrothermal circulation ; Hydrothermal reaction ; Chemical engineering ; Materials science ; Chemistry ; Process engineering ; Computer science ; Engineering 2D Materials and Applications ; MXene and MAX Phase Materials ; Perovskite Materials and Applications
Authors: Susmi Anna Thomas | Jayesh Cherusseri | Deepthi N. Rajendran
Source: RSC Sustainability (article, 2025-01-01)
Field: Materials Science — Electronic, Optical and Magnetic Materials

A minireview on rubber nanocomposites for sustainable supercapacitors Rubber nanocomposite-based electrodes are highly promising for supercapacitor applications owing to their high flexibility, high stretchability, and are potential candidates for next-generation electronic wearables. Supercapacitor ; Nanocomposite ; Natural rubber ; Materials science ; Nanotechnology ; Composite material ; Chemistry ; Capacitance ; Electrode Supercapacitor Materials and Fabrication ; Electrospun Nanofibers in Biomedical Applications
Authors: Songyuan Tao | Chengyu Zheng | Yang Bai
Source: National Science Review (review, 2025-09-09)
Field: Materials Science — Materials Chemistry

Precursor-dependent photoluminescence diversity in carbonized polymer dots: the luminophores and crosslinking Carbonized polymer dots (CPDs) represent a prominent subclass of luminescent carbon dots (CDs), distinguished by their unique core-shell nanostructures and exceptional optical performance. Over the past decade, CPDs have experienced significant growth, as they provide a promising approach to fabricate efficient luminophores at the nanoscale through simple and environmentally friendly methods. Various precursors, including small molecules, polymers and biomass, have proved to be effective for the synthesis of CPDs, leading to a diversity of photoluminescence (PL) properties, albeit with ongoing debates regarding the origins of PL. Herein, the precursor-dependent luminophores and crosslinking reactions are expounded in several representative CPDs to reveal the enhanced PL emissive behaviors that differ from traditional small molecules or polymers. We emphasize the synergistic contributions of molecular-state fluorophores and crosslink-enhanced emission effect in highly luminous CPDs. Additionally, we propose future development trends for CD materials to foster open discussion and guidance. Photoluminescence ; Luminescence ; Carbonization ; Polymer ; Nanostructure ; Nanoscopic scale Carbon and Quantum Dots Applications ; Luminescence and Fluorescent Materials ; Nanocluster Synthesis and Applications
Authors: Shusheng Pang | Xiaomin Dou | Wei Zhao | Suli Bai | Bo Wan | T. C. Wang | Jinghe Yang
Source: Nanomaterials (review, 2025-07-18)
Field: Materials Science — Materials Chemistry

A Review on the Design Strategies of Copper-Based Catalysts for Enhanced Activity and Stability in Methanol Reforming to Hydrogen Methanol Steam Reforming (MSR) is one of the most promising technologies in the hydrogen economy, and copper-based catalysts have become the core materials in this field due to their high activity and low cost. In this paper, we systematically review the design strategies of copper-based catalysts in MSR reactions in recent years, including structure control, component optimization, support effect, and surface modification. We focus on the mechanisms of active site exposure, improvement of anti-sintering ability, and the enhancement of anti-carbon deposition performance. Finally, we summarize the challenges of current research and propose the future development direction. This review aims to provide a reference for subsequent related research through the experience of this paper. Hydrogen production ; Copper ; Sintering ; Steam reforming ; Catalysis ; Methanol ; Component (thermodynamics) ; Hydrogen ; Materials science ; Rational design ; Nanotechnology ; Environmental science ; Process engineering ; Chemistry ; Engineering ; Metallurgy Catalytic Processes in Materials Science ; Catalysts for Methane Reforming ; Electrocatalysts for Energy Conversion
Authors: Kooffreh Okon | Ifeyinwa Ekeke | Chidiebere Arinzechukwu Maduabuchi | Ikechukwu Ignatius Ayogu | Taofik Oladimeji Azeez | C. O. Akalezi
Source: Koroze a ochrana materialu (article, 2025-05-01)
Field: Materials Science — Materials Chemistry

Recent advances in the use of metal oxides as corrosion inhibitors: a review Abstract This review paper studied the potential of using metal oxides as a green corrosion inhibitor for different alloys in various aggressive corrosive environments. Metal oxides are widely used for various applications such as sensors, environmental remediation, nanoelectronics devices, solar cells, biomedical applications and clean energy production due to their unique electronic structure. Metal oxides exhibit low corrosion inhibition efficiency when used as corrosion inhibitors in bulk form but attain significantly higher inhibition efficiencies when used in nanostructured form. Increasing the concentration of the metal oxides significantly reduced the corrosion rate and enhanced the corrosion inhibition efficiency for various samples studied under different operating conditions due to the increased surface area to volume ratio as well as the enhanced adsorption of the oxides onto the surface of the substrates, thereby reducing the corrosion rate by decreasing the available sites for the dissolution reaction. However, the challenges of agglomeration and poor dispersion of nanoparticles were frequently reported at higher concentrations which contributed to observed reduced efficiencies. Barrier protection, electro-chemical inhibition, synergistic interactions with other inhibitors, self-healing properties, adsorption and passivation have been widely reported as the mechanism by which metal oxides protect the various substrates studied. The chemical and thermal stability of metal oxides in aggressive salt environments is a comparative advantage over other traditional organic and green inhibitors. The various methods of synthesis and characterization of metal oxide nanoparticles as well as their cost and associated safety and environmental concerns have also been discussed. Industrial chemistry ; Corrosion ; Materials science ; Metallurgy ; Engineering ; Biochemical engineering Corrosion Behavior and Inhibition ; Concrete Corrosion and Durability ; Magnesium Oxide Properties and Applications
Authors: Jaxiry Shamara Barroso Martínez | Marı́a Escudero-Escribano
Source: ChemCatChem (article, 2025-06-20)
Field: Chemistry — Electrochemistry

In Situ Elucidation of Reaction Mechanisms in Electrocatalysis Using Scanning Electrochemical Microscopy Abstract Understanding local surface reactivity in the mechanism of electrocatalytic reactions has become particularly important for designing efficient electrocatalytic systems for renewable energy conversion. The dynamic formation of species near the electrode surface compared to the bulk may lead to the formation of key intermediates, making understanding reaction mechanisms challenging. In this review, we highlight the capabilities of scanning electrochemical microscopy (SECM) as an interfacial characterisation tool for the in situ analysis of electrocatalytic reactions. First, we introduced the basic concepts of SECM. Then we discussed how SECM characterisation leads to a deeper understanding of the local reactivity in electrochemical reactions, including carbon, oxygen, and short‐lived intermediates electrocatalysis. We highlight emerging applications of SECM, such as high‐resolution spatial mapping of nanoscale electrocatalytic activity, high‐throughput screening, and its combination with spectroscopic techniques. We illustrate how SECM investigations are key in electrocatalysis, offering powerful capabilities for in situ analysis, local activity mapping, and coupling with complementary methods to uncover mechanistic pathways. Electrocatalyst ; Scanning electrochemical microscopy ; Electrochemistry ; Reactivity (psychology) ; Nanotechnology ; In situ ; Chemistry ; Electrode ; Materials science ; Combinatorial chemistry ; Organic chemistry ; Physical chemistry Electrochemical Analysis and Applications ; Machine Learning in Materials Science ; Electrocatalysts for Energy Conversion
Authors: Xuangeng Dai | Fujing Xu | Hao Bai
Source: Journal of the American Ceramic Society (article, 2025-07-08)
Field: Materials Science — Materials Chemistry

Recent progress on design and fabrication of porous ceramics for solid oxide fuel cells Abstract Solid oxide fuel cells (SOFCs) represent a promising technology for clean and efficient power generation. Porous ceramic electrodes are fundamental components to ensure the power generation of SOFCs by providing the gas flow channels and active sites for electrochemical reactions. Manipulation of the porous structure with electrodes is thus crucial for enhancing the electrochemical performance and operation stability, attracting considerable research efforts over the past decades. In this review, design criteria along with bioinspiration are summarized for the pore structure engineering of ceramic electrodes to facilitate mass transport and increase reaction sites of SOFC. Various fabrication techniques are introduced and compared for their advantages and disadvantages in creating porous electrodes with ideal hierarchical structures and performance. Specifically, as co‐sintering of different cell components is a critical step in the fabrication process of SOFCs, major obstacles and research progress of co‐sintering techniques of multilayer ceramics are summarized in detail. Basic mechanisms of the sintering process and the influence of typical processing variables are reviewed followed by a detailed discussion on the common strategies to address the complexity of the co‐sintering problem. Finally, this review provides a perspective on the remaining challenges of the design and fabrication of porous ceramics for more efficient SOFCs, particularly discussing the great potential of cell design learning from nature. Fabrication ; Materials science ; Porosity ; Ceramic ; Oxide ; Chemical engineering ; Nanotechnology ; Fuel cells ; Composite material ; Metallurgy ; Engineering Advancements in Solid Oxide Fuel Cells ; Electronic and Structural Properties of Oxides ; Catalysis and Oxidation Reactions
Authors: Mingcheng Li | Zheng Liu | Dan Wu | Huihao Wu | Kuikui Xiao
Source: Nanomaterials (article, 2025-01-07)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Transition Metal-Mediated Preparation of Nitrogen-Doped Porous Carbon for Advanced Zinc-Ion Hybrid Capacitors Carbon is predominantly used in zinc-ion hybrid capacitors (ZIHCs) as an electrode material. Nitrogen doping and strategic design can enhance its electrochemical properties. Melamine formaldehyde resin, serving as a hard carbon precursor, synthesizes nitrogen-doped porous carbon after annealing. Incorporating transition metal catalysts like Ni, Co, and Fe alters the morphology, pore structure, graphitization degree, and nitrogen doping types/proportions. Electrochemical tests reveal a superior capacitance of 159.5 F g<sup>-1</sup> at a scan rate of 1 mV s<sup>-1</sup> and rate performance in Fe-catalyzed N-doped porous carbon (Fe-NDPC). Advanced analysis shows Fe-NDPC's high graphitic nitrogen content and graphitization degree, boosting its electric double-layer capacitance (EDLC) and pseudocapacitance. Its abundant micro- and mesopores increase the surface area fourfold compared to non-catalyzed samples, favoring EDLC and fast electrolyte transport. This study guides catalyst application in carbon materials for supercapacitors, illuminating how catalysts influence nitrogen-doped porous carbon structure and performance. Zinc ; Materials science ; Capacitor ; Transition metal ; Carbon fibers ; Nitrogen ; Porosity ; Doping ; Supercapacitor ; Inorganic chemistry ; Metal ; Metal ions in aqueous solution ; Ion ; Chemical engineering ; Nanotechnology ; Capacitance ; Metallurgy ; Chemistry ; Composite material ; Electrode ; Optoelectronics ; Organic chemistry ; Physical chemistry ; Composite number ; Electrical engineering ; Catalysis Supercapacitor Materials and Fabrication ; Advanced battery technologies research ; Advancements in Battery Materials
Authors: Weina Jiang | Xue Zhou | Xiaojiao Yuan | Liang Zhang | Xue Xiao | Jiangyu Zhu | Weiwei Cheng
Source: Foods (review, 2025-11-30)
Field: Chemistry — Inorganic Chemistry

Multifunctional Metal–Organic Frameworks for Enhancing Food Safety and Quality: A Comprehensive Review Food safety and quality are paramount global concerns, with the complexities of the modern supply chain demanding advanced technologies for monitoring, preservation, and decontamination. Conventional methods often fall short due to limitations in speed, sensitivity, cost, and functionality. Metal-organic frameworks (MOFs), a class of crystalline porous materials, have emerged as a highly universal platform to address these challenges, owing to their unprecedented structural tunability, ultrahigh surface areas, and tailorable chemical functionalities. This comprehensive review details the state-of-the-art applications of multifunctional MOFs across the entire spectrum of food safety and quality enhancement. First, the review details the application of MOFs in advanced food analysis, covering their transformative roles as sorbents in sample preparation (e.g., solid-phase extraction and microextraction), as novel stationary phases in chromatography, and as the core components of highly sensitive sensing platforms, including luminescent, colorimetric, electrochemical, and SERS-based sensors for contaminant detection. Subsequently, the role of MOFs in food preservation and packaging is explored, highlighting their use in active packaging systems for ethylene scavenging and controlled antimicrobial release, in intelligent packaging for visual spoilage indication, and as functional fillers for enhancing the barrier properties of packaging materials. Furthermore, the review examines the direct application of MOFs in food processing for the selective adsorptive removal of contaminants from complex food matrices (such as oils and beverages) and as robust, recyclable heterogeneous catalysts. Finally, a critical discussion is presented on the significant challenges that impede widespread adoption. These include concerns regarding biocompatibility and toxicology, issues of long-term stability in complex food matrices, and the hurdles of achieving cost-effective, scalable synthesis. This review not only summarizes recent progress but also provides a forward-looking perspective on the interdisciplinary efforts required to translate these promising nanomaterials from laboratory research into practical, real-world solutions for a safer and higher-quality global food supply. Food spoilage ; Food packaging ; Active packaging ; Food safety ; Food quality ; Supply chain ; Quality (philosophy) ; Broad spectrum Metal-Organic Frameworks: Synthesis and Applications ; Advanced Nanomaterials in Catalysis ; Electrochemical sensors and biosensors