jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Susilawati Susilawati | Teguh Ardianto | Aris Doyan | Nina Nisrina | Wan Mohtar Wan Yusoff | Jaswadi Jaswadi
Source: Jurnal Penelitian Pendidikan IPA (article, 2025-05-25)
Field: Materials Science — Materials Chemistry

Effect of Doping for Barium M-Hexaferrite Material Composition on Microwave Absorption Effect (A Systematic Review) Research in the field of materials, especially the magnetic properties of materials, continues to increase. This is because Indonesia is one of the countries whose technological developments are developing very rapidly, where the amount of energy use is on a large scale, so that human needs for renewable energy sources must be met properly. This research aims to identify and analyze research trends of doping for barium m-hexaferrite material composition. This research method is descriptive and analytical. The data used in this research was obtained from documents indexed by Google Scholar from 2016-2025 using Publish or Perish and Dimension.ai. Research procedures use PRISMA guidelines. The data identified and analyzed are the type of publication, publication source, and the title of research doping for barium m-hexaferrite material composition that is widely cited. The data analysis method uses bibliometric analysis assisted by VOS viewer software. The results of the analysis show that research trend indexed by Google Scholar from 2016 to 2025 has experienced ups and down. There are many documents in the form of articles, chapters, preprints, monograph, proceeding and edited books that discuss research about doping for barium m-hexaferrite material composition. Key words that are often used in research about it are synthesis, characterization, permanent magnet, etc. Barium ; Microwave ; Doping ; Materials science ; Absorption (acoustics) ; Composition (language) ; Analytical Chemistry (journal) ; Chemistry ; Optoelectronics ; Composite material ; Chromatography ; Computer science ; Telecommunications ; Metallurgy Magnetic Properties and Synthesis of Ferrites ; Electromagnetic wave absorption materials
Authors: Allyson Leandro Rodrigues dos Santos | Bernardete F. Melo | Anízio M. Faria
Source: Separation Science Plus (article, 2025-09-01)
Field: Chemistry — Analytical Chemistry

Molecularly Imprinted Poly(Trimethylolpropane Triacrylate‐Co‐Ethylene Glycol Dimethacrylate‐Co‐Methacrylic Acid) Monolithic Sorbent for Pipette‐Tip Solid‐Phase Extraction of <i>N</i> ‐Nitrosodimethylamine in Medicaments ABSTRACT A novel pipette‐tip solid‐phase extraction method was developed using a molecularly imprinted monolithic sorbent composed of poly(trimethylolpropane triacrylate‐co‐ethylene glycol dimethacrylate‐co‐methacrylic acid) for the selective extraction of N ‐nitrosodimethylamine from pharmaceutical formulations. The sorbent was synthesized by in situ thermopolymerization within 1 mL pipette tips, resulting in a hierarchically porous monolithic structure with good permeability and specific recognition sites for N ‐nitrosodimethylamine. The structural and physicochemical characteristics of the sorbent were investigated by several techniques, confirming its macroporous nature, thermal stability, and efficient polymerization. Adsorption studies demonstrated a five‐fold increase in capacity for the imprinted material compared to its non‐imprinted counterpart. The extraction procedure was optimized for eluent type, extraction/elution cycle numbers, and sample volume and evaluated for greenness using the AGREEprep metric, achieving a score of 0.76. The proposed method was validated, demonstrating excellent linearity ( r &gt; 0.997), recoveries between 95.6% and 98.5%, relative standard deviation &lt; 4.1%, and a limit of quantification of 2 ng g −1 . The optimized and validated method was applied to commercial drug samples showing no detectable nitrosamine, while spiked samples yielded high recovery rates (92%–96%). This work presents a fast, eco‐friendly, and effortless alternative for determining N ‐nitrosodimethylamine in commercial drugs, with performance comparable to more advanced methods. Sorbent ; Extraction (chemistry) ; Detection limit ; Solid phase extraction ; Monolithic HPLC column ; Adsorption ; Molecularly imprinted polymer ; Sample preparation Analytical chemistry methods development ; Water Treatment and Disinfection ; Mass Spectrometry Techniques and Applications
Authors: Ericson Mata‐Zabala | L. Bravo | Álvaro Javier Patiño‐Agudelo | Lucas Santos Silva | Nelson Barrios | Juan Pereira
Source: Journal of Surfactants and Detergents (article, 2025-01-30)
Field: Chemistry — Organic Chemistry

Influence of sodium benzoate on key colloid properties of sodium lauryl ether sulfate: Identification of a possible interfacial structure decoupler Abstract Surfactant–oil–water (SOW) systems, particularly when packaged in metal containers, require chemical reagents with preservative and anticorrosive properties. This study aims to investigate the influence of sodium benzoate (NaBz) on fundamental interfacial properties of the surfactant lauryl ether sulfate (SLES) with two ethoxylation units (EO = 2). Using a combination of surface tension, electrical conductivity, and isothermal titration calorimetry (ITC) measurements, we evaluated SLES systems in the presence of NaCl, NaBz, and various mixtures of these salts using salinity scans, at room temperature. NaBz inhibits the formation of triphasic system in SOW formulation. The thermodynamic stability of SLES micelles followed the order: with entropy being the primary driving force. The results suggest that NaBz acts as a potential interfacial structure decoupler. This novel behavior of NaBz may have important implications for its use in SOW systems, particularly in formulations requiring stability and integrity in aggregation state. Chemistry ; Colloid ; Sodium ; Sulfate ; Sodium sulfate ; Ether ; Identification (biology) ; Inorganic chemistry ; Chromatography ; Organic chemistry Surfactants and Colloidal Systems ; Crystallization and Solubility Studies ; Analytical Chemistry and Chromatography
Authors: Muhammad Esa | Sunisa Kaewpaiboon | Teerapol Srichana
Source: Journal of Applied Pharmaceutical Science (review, 2025-01-01)
Field: Materials Science — Biomaterials

Fabrication, biodistribution, and toxicological evaluation of mesoporous silica nanoparticles based on preclinical studies intended for cancer therapy: A review Effective delivery of anticancer drugs to tumor sites remains a substantial challenge in cancer treatment. A significant effort has been devoted to delivering anticancer drugs to the intended targets without causing harm to normal body cells. The need to enhance the efficacy and selectivity of chemotherapeutic drugs while minimizing adverse effects on healthy tissues has resulted in increased attention. A mesoporous silica nanoparticle (MSNP) platform is promising due to low toxicity, controlled release profiles, excellent drug loading capacity, and surface modification for targeting. The literature has outlined the synthesis, fabrication, drug loading and release profile, pharmacokinetics, biodistribution, toxicology, and potential outcomes of employing MSNP for anticancer drug delivery. However, the information is dispersed. This review aims to provide a comprehensive examination of the current research on MSNP for efficient drug delivery in cancer therapy based on over 150 preclinical studies up to March 2025. The review highlights the importance of MSNPs in addressing major challenges in targeted drug delivery for cancer therapy and offers a clear summary of the current state of research. This article will serve as an updated and valuable reference for researchers working on MSNP for anticancer drug delivery. Biodistribution ; Mesoporous silica ; Cancer ; Nanotechnology ; Cancer therapy ; Nanoparticle ; Medicine ; Mesoporous material ; Materials science ; Chemistry ; Internal medicine ; Organic chemistry ; Biochemistry Nanoparticle-Based Drug Delivery
Authors: Lulu Liu | Jiacheng Qi | Chi Ding | Dinghui Wang | Shoutao Zhang
Source: Molecules (article, 2025-11-11)
Field: Materials Science — Materials Chemistry

Structural, Mechanical, and Electronic Properties of High-Hardness Silicon Tetranitride Materials with high hardness are critical for industrial and aerospace applications, prompting the search for novel compounds with robust covalent networks. Using a first-principles structure prediction method, we systematically explored the phase stability of Si-N compounds under high pressure. We identified two thermodynamically stable phases: Si<sub>6</sub>N with <i>P</i>-1 symmetry and SiN<sub>4</sub> with space group <i>R</i>-3<i>c</i>. Phonon spectra and ab initio molecular dynamics simulations confirm the dynamical and thermal stability of <i>R</i>-3<i>c</i> SiN<sub>4</sub> at ambient pressure and up to 2000 K. Notably, <i>R</i>-3<i>c</i> SiN<sub>4</sub> exhibits exceptional mechanical properties with a Vickers hardness of 31 GPa, a bulk modulus of 259.53 GPa, and a Young's modulus of 485.38 GPa. Furthermore, SiN<sub>4</sub> possesses a high energy density (1.1 kJ·g<sup>-1</sup>) and outstanding detonation pressure and velocity (228 kbar, 7.11 km·s<sup>-1</sup>), both exceeding those of TNT, making it a potential high-energy-density materials. In addition, electronic structure analysis reveals SiN<sub>4</sub> has a band gap of 2.5 eV, confirming its nonmetallic characteristics and strongly covalent nature. These findings provide theoretical guidance for the future synthesis of Si-N phases and establish a foundation for designing novel materials that combine high hardness with high-energy density performance. Bulk modulus ; Phonon ; Thermal stability ; Silicon ; Ab initio ; Molecular dynamics ; Covalent bond ; Band gap ; Detonation velocity ; Density functional theory Boron and Carbon Nanomaterials Research ; Advanced ceramic materials synthesis ; High-pressure geophysics and materials
Authors: Olena Chyhyrynets | Olga Sanginova | Jinping Hu | Yehui Wu | Xiangrong He
Source: Technology audit and production reserves (article, 2025-08-29)
Field: Materials Science — General Materials Science

Optimization of the composition of aluminum phosphate and walnut shell-based composition to increase the corrosion resistance of paint coatings The object of the study is аnti-corrosion properties of walnut shell powder and aluminum phosphate mixtures. The existing problem is that the most effective chromate-containing pigments, which were traditionally used for the manufacture of paint and varnish coatings, are toxic. Given this fact, the research of scientists aims at finding alternative low-toxic compounds, which are phosphate pigments. Since they are inferior in efficiency, modern research is aimed either at the synthesis of new modifications and complex forms of pigments, or at the development of effective mixtures of pigments that would provide the necessary level of anti-corrosion protection of steel. Along with this, an urgent direction is to increase the level of environmental friendliness of paint and varnish coatings using annually renewable plant waste, which, due to the content of tannins, have proven themselves well for surface preparation before painting. The work investigated the effect of a mixture of non-toxic aluminum phosphate and finely ground walnut shell powder on the corrosion behavior of steel. An adequate mathematical model “composition – mass corrosion index” was proposed. The mathematical model allowed to establish the relationship between the composition and corrosion rate and find the optimal composition of the studied mixture. The calculations showed that at a ratio of aluminum phosphate and walnut shell powder of about 8:1, the mass corrosion rate of steel in the obtained extract is 0.020 g / (m2 · h). By experimentally verifying the optimal composition of the study, a mass corrosion index of 0.018 g / (m2 · h) was achieved, which confirms the theoretical calculations and ensures the practical applicability of the results obtained. The results of the study will be useful for specialists working in the field of developing water-based anti-corrosion paints and coatings, with an emphasis on studying the influence of pigments and fillers on the corrosion behavior of steel. Composition (language) ; Corrosion ; Shell (structure) ; Metallurgy ; Aluminium ; Phosphate ; Materials science ; Composite material ; Chemistry ; Art ; Organic chemistry Material Properties and Applications
Authors: Ö. Burak İstanbullu | Gülşen Akdoğan | Halis Yılmaz | Mustafa İstanbullu
Source: Journal of Biomedical Materials Research Part A (article, 2025-06-01)
Field: Materials Science — Materials Chemistry

Electrochemical Assessment of the Galvanic Corrosion and Metal Ion Release in Overlapping Stent and Vascular Plug Systems Cardiovascular diseases cause the highest global mortality rates and are often treated with surgical interventions such as stent or vascular plug placement. However, in-stent restenosis develops over time depending on the material composition and interactions with body fluids. Current strategies to address restenosis include balloon angioplasty or placing a secondary stent at the same site. A key concern with overlapping stents is the increasing risk of galvanic corrosion, as most cardiovascular stents have metallic composition. This study examines galvanic corrosion rates in different vascular stent and plug combinations using electrochemical corrosion characterization techniques. Three metallic vascular specimens with varying compositions are evaluated. The specimens are immersed in simulated body fluid at 37°C under individual and overlapping conditions. Electrochemical impedance spectroscopy and current density measurements, conducted via potentiostat, provide insights into the corrosion behavior of each specimen configuration. Additionally, inductively coupled plasma mass spectrometry quantifies metal ion release through SBF samples. Results show that combining dissimilar materials in overlapping placements significantly increases galvanic corrosion and metal ion release. The corrosion current density (i<sub>corr</sub>) significantly increased from 11.75 μA/cm<sup>2</sup> in the individual bare-metallic stent to 522.3 μA/cm<sup>2</sup> in the stent-on-plug configuration. A similar increase was observed in the stent-on-stent configuration, with an i<sub>corr</sub> of 132.6 μA/cm<sup>2</sup>. These results corresponded with notable decreases in electrochemical impedance and polarization resistance, measured as low as 0.039 kΩ (Z<sub>T</sub>) and 0.057 kΩ cm<sup>2</sup> (R<sub>P</sub>) for the stent-on-plug system. Consequently, the calculated corrosion rate escalated to 2254 μm/year, with a mass loss reaching 42.22 mg/cm<sup>2</sup>·year. ICP-MS analysis supported these findings, showing the highest levels of metal ion release in the stent-on-plug configuration, with 23.86 ppm of Ni and 0.41 ppm of Cr. These findings highlight the importance of stent-material selection in reducing corrosion-related complications. Implementing material-specific strategies in secondary stent placement can lower the risks of inflammatory host response, stent failure, and their long-term effects. Materials science ; Corrosion ; Dielectric spectroscopy ; Stent ; Galvanic cell ; Simulated body fluid ; Restenosis ; Potentiostat ; Galvanic corrosion ; Electrochemistry ; Spark plug ; Metal ; Metallurgy ; Composite material ; Electrode ; Scanning electron microscope ; Surgery ; Chemistry ; Medicine Corrosion Behavior and Inhibition ; Hydrogen embrittlement and corrosion behaviors in metals ; Concrete Corrosion and Durability
Authors: Amazigh Ouaksel | Andrea Carboni | Danielle L. Slomberg | Vladimir Vidal | Olivier Proux | Catherine Santaella | Lenka Brousset | Bernard Angeletti | Alain Thiéry | Jérôme Rose | Mélanie Auffan
Source: Journal of Hazardous Materials (article, 2025-01-14)
Field: Materials Science — Materials Chemistry

Behavior and fate of ITER-like tungsten nanoparticles in freshwater ecosystems produced during operation and maintenance Tungsten ; Nanoparticle ; Ecosystem ; Environmental science ; Environmental chemistry ; Chemistry ; Materials science ; Nanotechnology ; Ecology ; Biology ; Metallurgy Nuclear materials and radiation effects ; Chemical Synthesis and Characterization ; Radioactive element chemistry and processing
Authors: Maria Laura Di Lorenzo | Sara Liparoti | Dario Cavallo | T. Hashemi | Roberto Pantani
Source: International Journal of Polymer Science (article, 2025-01-01)
Field: Materials Science — Biomaterials

Fused Filament Fabrication of Poly( <scp>l</scp> ‐Lactic Acid): A Thermal Analysis Approach to Optimize Processing Conditions Fused filament fabrication (FFF) is an inexpensive and flexible additive manufacturing technology, widely used for thermoplastic polymers to produce parts with complex geometry. However, some thermoplastics may undergo thermal degradation upon FFF, with loss of material properties. This is the case of poly( L ‐lactic acid) (PLLA), a biodegradable and bio‐based semicrystalline polyester, largely used in FFF. For the temperature‐sensitive polymers, FFF processing should be optimized, to limit as much as possible thermal degradation. In this work, the minimum temperature and time needed to melt PLLA, thus the best conditions to limit thermal degradation, have been determined by calorimetry. The attained results were used to produce 3D printed parts using a PLLA filament: the analysis of the effect of nozzle temperature and extrusion rate (the main processing parameters linked to polymer melting kinetics) on the thermal properties of the printed parts confirmed the need of proper setting of the melting conditions to optimize properties of FFF 3D printed products. Modeling and simulation of flow and temperature fields inside the liquefier, accounting for the filament melting, are also proposed and used to evaluate the molten fraction in several printing conditions. Protein filament ; Lactic acid ; Materials science ; Fabrication ; Thermal ; Fused filament fabrication ; Composite material ; Polymer ; Bacteria ; Biology ; Medicine ; Physics ; Genetics ; Thermodynamics biodegradable polymer synthesis and properties ; Additive Manufacturing and 3D Printing Technologies ; Bone Tissue Engineering Materials
Authors: Sudip Maity
Source: Research Square (preprint, 2025-09-09)
Field: Materials Science — Materials Chemistry

Development and Characterization of Magnesium Oxide Nanoparticles for Enhanced Antimicrobial Application Antimicrobial ; Nanoparticle ; Fourier transform infrared spectroscopy ; Magnesium ; Evaporation ; Particle size Nanoparticles: synthesis and applications ; Magnesium Oxide Properties and Applications ; Graphene and Nanomaterials Applications
Authors: Bohan Li | Zaihua Duan | Wenxin Zeng | Yichen Bu | Zhen Yuan | Yadong Jiang | Huiling Tai
Source: Laser & Photonics Review (article, 2025-10-27)
Field: Materials Science — Materials Chemistry

Advances in PbX (X = S, Se, Te) Quantum‐Dot Photodetectors Abstract Lead chalcogenides quantum dots (PbX (X = S, Se, Te) QDs) have become promising materials for the next generation of uncooled infrared photodetectors due to their excellent bandgap tunability, solution processability, and cost‐effective manufacturing. Despite significant advancements in controllable synthesis and device engineering, the absence of a comprehensive comparative analysis of their synthetic methods and optoelectronic devices has hindered further development in this field. In this review, an overview of the latest advancements in PbX QDs materials and photodetectors is provided. First, the synthesis methods of PbX QDs are introduced, and their respective advantages and limitations are analyzed. Second, regarding the two core optimization strategies for PbX QDs photodetectors, namely the construction of heterojunction and the design of functional layers, the comprehensive discussions are conducted from three aspects: device fabrications, working mechanisms, and optoelectronic performances. Third, various applications of PbX QDs photodetectors are summarized, including smart furniture, medical and health, and security monitoring. Finally, a comparative analysis of PbX QDs materials and photodetectors is conducted, and their challenges and prospects are discussed. This review aims to provide valuable insights for future research on PbX QDs photodetectors, including material selection and synthesis, device optimization, and application scenarios. Photodetector ; Quantum dot ; Heterojunction ; Band gap ; Infrared Quantum Dots Synthesis And Properties ; Chalcogenide Semiconductor Thin Films ; 2D Materials and Applications
Authors: Ashima Bajaj | Harry Ramanantoanina | Bianca Schacherl | Sven Schenk | T. Prüßmann | A. Tasi | David Fellhauer | Alaina Thompson | Jeff Terry | Xiaoyu Wang | Eva Zurek | Tonya Vitova | Paul S. Bagus | Jochen Autschbach
Source: ChemRxiv (preprint, 2025-01-14)
Field: Materials Science — Materials Chemistry

Actinide 5f Occupations: The Case of PuO2 In actinide chemistry, the formal number of open‐shell 5f electrons, n(open), is a well‐defined quantity with an integer value. The effective 5f occupation, n(f), additionally takes donation and back‐donation into account, generally has a non‐integer value, and varying numerical definitions. The present study explores the important distinction between n(f) and n(open) in actinide chemistry with the example of PuO2, by using electronic structure methods with a relativistic Hamiltonian in combination with experimental Pu M5‐edge high energy resolution X‐ray absorption and emission spectroscopic data. The total donation to the metal in PuO2 is between 3.1 and 2.4 electrons, depending on the type of calculation, most of which is to the Pu 6d and 5f shells. The donation into 5f is sensitive to the approximations in the electronic structure model but likely amounts to 1.6/0.8 electrons when the diffuse regions of the 5f shell are included/excluded. Valence band resonant inelastic X‐ray scattering (VB‐RIXS) experiments demonstrate that Pu 5f electron density is present in the valence band; thus, there is a clear experimental signature of covalent bonding in PuO2. Pu M5‐edge and M3‐edge high energy resolution X‐ray absorption near edge structure (HR‐XANES) for Pu3+ and Pu4+ in aqueous solution are compared to PuO2 showing that Pu in PuO2 has n(f) closer to Pu4+(aq). Actinide ; Physics ; Nuclear physics Nuclear Materials and Properties ; Radioactive element chemistry and processing ; Nuclear reactor physics and engineering