jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Cleber Nonato Macedo Costa | Marilia Danyelle Nunes Rodruigues | Ana Paula Santos | Natasha Costa da Rocha Galucio | Maria Isabelle Ferreira Falcão de Andrade Lima | Renata Ayres de Abreu Dória | Cláudia Carvalho | Alceu dos Santos Silva Karipuna | Regianne Maciel dos Santos Correa
Source: Contribuciones a las Ciencias Sociales (article, 2025-01-16)
Field: Materials Science — Biomaterials

Nanotecnologia em sistemas de entrega de fármacos: avanços recentes e aplicações futuras Este estudo revisa as inovações recentes na nanotecnologia aplicada a sistemas de entrega de fármacos, com foco em nanopartículas lipídicas e poliméricas, e explora seus potenciais aplicações futuras. Utilizando uma abordagem híbrida, que integra análises qualitativas e quantitativas, foram revisados artigos científicos, patentes e estudos clínicos publicados entre 2018 e 2023 nas bases PubMed, Scopus e Web of Science. Estudos com menos de 50 participantes, artigos de opinião e revisões narrativas foram excluídos. A revisão identificou que 60% dos estudos focam em nanopartículas lipídicas e 40% em nanopartículas poliméricas. Os resultados mostram avanços notáveis em plataformas de nanocarreadores, com lipossomas e Nanopartículas Lipídicas Sólidas (SLNs) demonstrando eficácia na entrega controlada de fármacos, exemplificados por produtos como Doxil® e Onivyde®. Aproximadamente 35% dos estudos confirmam a eficácia dos lipossomas na melhoria da biodisponibilidade. Nanopartículas poliméricas, especialmente aquelas baseadas em Ácido Poliláctico-co-Glicólico (PLGA), são destacadas pela liberação prolongada de agentes terapêuticos, aumentando a eficácia clínica em cerca de 25% e reduzindo efeitos adversos. A nanotecnologia tem melhorado a biodisponibilidade e estabilidade dos fármacos, apesar de desafios como escalabilidade da produção, imunogenicidade e biocompatibilidade. A integração de inteligência artificial para otimização de nanocarreadores oferece uma via promissora para superar esses obstáculos. Futuras aplicações incluem nanocarreadores personalizados e tratamentos para doenças complexas, como câncer e neurodegenerativas. A colaboração contínua entre cientistas, indústria e reguladores é crucial para a implementação dessas inovações na prática clínica. Gynecology ; Medicine Nanoparticle-Based Drug Delivery ; Electrohydrodynamics and Fluid Dynamics ; Graphene and Nanomaterials Applications
Authors: G. Parthasarathy | Bhaskar Jyoti Saikia | Binoy K. Saikia | Puja Bordoloi | Rashmi R. Borah | Pankaj K. Srivastava | Manavalan Satyanarayanan
Source: Earth Systems Resources and Sustainability (article, 2025-12-26)
Field: Materials Science — Biomaterials

Nanocrystalline Cookeite from Lithium Mineral Deposits of Jammu, India: A Multianalytical Characterization This study presents the first integrated micro-Raman spectroscopic and nanoscale investigation of the lithium-bearing bauxite from the Reasi inlier in Jammu. Combined XRD, Raman, FTIR, and high-resolution TEM analyses reveal a mineral assemblage dominated by kaolinite and Li-rich chlorite-group minerals (cookeite), with minor carbonaceous and oxide phases. Powder XRD pattern indicates nanocrystalline intergrowths and mixed-layer domains. Micro-Raman spectra exhibit characteristic Al–O–Si bending and Si–O stretching vibrations diagnostic of kaolinite and cookeite, while FTIR spectra show distinct Si–O and Al–OH bands with broadened Li–O lattice features. HRTEM imaging reveals alternating nanocrystalline and amorphous regions, consistent with partial amorphization and structural reorganization. Energy Dispersive Spectra (EDS) data confirm enrichment of Al, Si, O, and minor Fe, supporting an aluminosilicate framework. These results suggest that kaolinite and cookeite formed through hydrothermal alterations and secondary phyllosilicate formation as a weathering product. Our study contributes to the distribution of lithium minerals which critical for both resource characterization and the development of effective processing strategies. Kaolinite ; Nanocrystalline material ; High-resolution transmission electron microscopy ; Amorphous solid ; Mineral ; Hydrothermal circulation ; Cristobalite ; Characterization (materials science) ; Bauxite ; Aluminosilicate Clay minerals and soil interactions ; Geochemistry and Elemental Analysis ; Bauxite Residue and Utilization
Authors: H. Türkmen | Rüçhan Yıldız
Source: Research Square (preprint, 2025-09-29)
Field: Materials Science — Polymers and Plastics

Investigation of Fire Resistance and Thermal Wear Behavior of Chopped Basalt and Glass Fiber Reinforced Epoxy Composites Basalt fiber ; Epoxy ; Basalt ; Glass fiber ; Fiber ; Thermal ; Durability ; Tribology ; Fibre-reinforced plastic Flame retardant materials and properties ; Natural Fiber Reinforced Composites ; Fiber-reinforced polymer composites
Authors: Zornitsa Mladenova-Angelova | Даниел Денев
Source:  (article, 2025-03-18)
Field: Materials Science — Materials Chemistry

APPLICATIONS OF RADIATION PROTECTION IN MODERN INDUSTRY AND SCIENCE Radioactive materials and radiation are widely used in various industries, such as medicine and nuclear energy, but they also require careful management and protection. This report examines the fundamentals and applications of radiation protection, emphasizing the challenges and new approaches in these fields. In medicine, radiotherapy for cancer treatment requires precise dose calculation to minimize damage to healthy tissues, while diagnostic procedures such as X-ray, computed tomography (CT), and magnetic resonance imaging (MRI) require strict monitoring of radiation doses. In nuclear energy, ensuring the safety of personnel working in nuclear power plants is crucial, with regulatory standards ensuring that doses are within permissible limits. Following the Fukushima incident, emergency measures and effective radiation control systems have become even more important in preventing health and environmental risks. Based on these circumstances, the report highlights the need for integrated approaches to radiation protection that ensure safety and efficiency in both medical and industrial applications. Radiation protection ; Computer science ; Physics Graphite, nuclear technology, radiation studies
Authors: Caixia Zhang | Shoubing Chen | Qian Dou | Yanhui Li | Qihua Wang | Tingmei Wang
Source: Journal of Applied Polymer Science (article, 2025-11-29)
Field: Materials Science — Polymers and Plastics

Study on the Modification of Nitrile‐Butadiene Rubber by Halloysite Nanotube‐Oleylamine Graft and Its Low‐Temperature Resistance Performance ABSTRACT This study pioneers the grafting of oleylamine onto halloysite nanotubes (HNTs) to synthesize a low‐temperature composite modifying agent for rubber (HNTs‐Y). It enables the synergistic regulation of the low‐temperature performance of nitrile butadiene rubber (NBR) via a “plasticization‐reinforcement” mechanism, addressing both the migration propensity of conventional small‐molecule plasticizers and the insufficient low‐temperature modification efficacy of pristine HNTs. This work thereby provides a novel multifunctional modification strategy for optimizing the low‐temperature performance of elastomers. Experimental results demonstrate that HNTs‐Y significantly enhances the low‐temperature resistance of NBR. Specifically, at a loading of 6 phr, the hardness difference of 4 # NBR between −40°C and 40°C is reduced by 45.2% compared to 1 # NBR, indicating improved hardness stability over a broad temperature range. Additionally, the tensile strength of 4 # NBR at −20°C is 79% higher than that at 20°C and 77% higher than that of 1 # NBR, reflecting enhanced resistance to tensile fracture under low‐temperature conditions. Furthermore, with the increase in HNTs‐Y content, the brittle temperature ( T b ) and glass transition temperature ( T g ) of NBR exhibit an overall downward trend. For 4 # NBR, the T b reaches −52°C and the T g is −29.5°C, manifesting excellent low‐temperature resistance. Halloysite ; Natural rubber ; Ultimate tensile strength ; Grafting ; Glass transition ; Brittleness ; Plasticizer Polymer Nanocomposites and Properties ; Clay minerals and soil interactions ; Mesoporous Materials and Catalysis
Authors: H.D. Hristov
Source:  (article, 2025-03-18)
Field: Materials Science — Materials Chemistry

USE OF NON-IONIZING RADIATION The Earth's permanent magnetic field operates everywhere on the Earth's surface. It varies depending on geographical coordinates, as well as due to anomalies associated with the presence of iron ore deposits in certain geographical areas, but in the sense cited, it is a universal factor of the environment. The same applies to the electrostatic field, which has a vector directed downwards towards the Earth's surface and has variable values depending on atmospheric conditions. Radio frequency signals "arrive" at the Earth's surface, caused by various processes in space and stars, including our Sun. The entire spectrum of optical radiation (UV, visible light, IR radiation) is contained in sunlight. Ionizing radiation ; Computer science ; Non-ionizing radiation ; Radiation ; Physics ; Irradiation ; Nuclear physics ; Optics Graphite, nuclear technology, radiation studies
Authors: Joshua P. Smith | R. N. B. Smith | Thomas M. Roseveare | Dominic Bara | Alexander J. R. Thom | Ross S. Forgan | Mark R. Warren | Anna J. Warren | Robin L. Owen | Lee Brammer
Source: ChemRxiv (preprint, 2025-09-18)
Field: Materials Science — Materials Chemistry

Multi-Crystal X-Ray Diffraction (MCXRD) Bridges the Crystallographic Characterisation Gap in Chemistry and Materials Science: Application to MOFs Structure determination by X-ray diffraction is limited by crystal size and can be compromised by radiation damage when using very intense X-ray radiation. X-ray structure determination from partial diffraction data sets combined from multiple crystals is a potential solution, but its exploitation in chemistry and materials science is largely unrealized. Here we report the use of synchrotron radiation for multi-crystal X-ray diffraction (MCXRD) adapted for structure determination of metal-organic framework (MOF) materials with crystal dimensions too small for conventional single-crystal diffraction studies. We further show that radiation-induced chemical changes and degradation of diffraction quality can be alleviated. Our approach encompasses both rotation- and stationary-MCXRD measurements for 10 to 1000s of crystals with software-optimized combination of the multiple data sets. We report the crystal structures of six MOFs: MOF-919(Sc/Cu), MET-2, MIL-88B(Cr)-1,4-NDC, PCN-260(Sc), UiO-66, and UiO-66-MoO4 with unit cell dimensions ranging from 18−114 Å and crystal sizes from 0.5−480 µm 3 . This approach can address the challenges of structure determination in a regime of particle size and sample radiation sensitivity that lies between existing single-crystal X-ray diffraction and the emerging ﬁeld of electron diffraction. MCXRD can provide accurate atomic-resolution structure determination for some of the most challenging cases in chemistry and materials science Diffraction ; Crystal structure ; X-ray crystallography ; Crystal (programming language) ; Electron diffraction ; Synchrotron radiation ; Crystal chemistry ; Synchrotron X-ray Diffraction in Crystallography ; Pigment Synthesis and Properties ; Thermal and Kinetic Analysis
Authors: M. Simeonov
Source:  (article, 2025-03-18)
Field: Materials Science — Materials Chemistry

RADIATION SAFETY AND RISK MANAGEMENT OF IONIZING RADIATION Radiation safety remains a vital concern in today’s rapidly advancing technological world. As the use of ionizing radiation expands across various sectors, the need for strict safety regulations, continuous monitoring, and public awareness becomes increasingly important. Through international cooperation, scientific innovation, and responsible management, the risks associated with radiation exposure can be minimized, ensuring both human and environmental protection for current and future generations. Ionizing radiation ; Radiation ; Risk analysis (engineering) ; Computer science ; Medical physics ; Business ; Irradiation ; Medicine ; Physics ; Optics ; Nuclear physics Graphite, nuclear technology, radiation studies
Authors: Anupama Gupta
Source: International Journal of Applied Science and Research (article, 2025-01-01)
Field: Chemistry — Electrochemistry

Optimization of Voltametric Conditions for Analytical Determination of Ultra Trace Selenium A differential pulse polarographic method is described for the determination of trace quantities of selenium in the presence of copper, cadmium, and nickel. A limit of determination of 0.02 µg/ml is achieved. The method has been successfully applied for the analysis of selenium in industrial waste water samples Selenium ; TRACE (psycholinguistics) ; Environmental chemistry ; Chemistry ; Materials science ; Analytical Chemistry (journal) ; Metallurgy Electrochemical Analysis and Applications ; Metal Extraction and Bioleaching ; Chalcogenide Semiconductor Thin Films
Authors: Madhu Kriti | Arpita Roy | Sarvesh Rustagi | Vaseem Raja | Swetha Raj
Source: Asian Journal of Chemistry (article, 2025-12-31)
Field: Materials Science — Materials Chemistry

Biogenic Synthesis and Characterization of Ag-Zn-CuO Nanoparticles using Peels of Citrus limetta: Evaluation of Dyes Degradation and Antibacterial Activity The synthesis of green nanomaterials by sustainable routes is gaining more attention as they hold potential for catalysis, environmental clean-up and biomedical applications. Herein, Ag-Zn-CuO trimetallic nanoparticles were green synthesised using Citrus limetta (mosambi) peel extract as a bioreducing and stabilizing agent. Phytoconstituents such as phenolics, flavonoids and tannins were present in the peels and help to reduce metal ions and shows capping properties. The formation of nanoparticles was reflected by a clear colour change and further established through UV-Vis spectroscopy, which showed typical SPR absorption bands at 388 nm (Ag), 324 nm (Zn) and 284 nm (CuO). Morphological investigation through FE-SEM reflected uniformly dispersed nanoparticles with irregular surface morphology and EDS ensured their trimetallic nature (84.73 wt.% Ag, 3.06 wt.% Zn, 12.21 wt.% Cu). XRD analysis confirmed crystalline structure by diffraction peaks for fcc Ag (111, 113), Zn (101) and CuO (-113) with crystallite size of 16.15 nm on average as calculated from Scherrer’s equation. Zeta potential analysis showed a mean value of -16.6 mV and thus moderate electrostatic repulsion to prevent aggregation and promote colloidal stability. Further catalytic application, in the presence of NaBH4, nanoparticles degraded methyl red dye (78.69%) and Congo red dye (73.82%) in 180 min. Antibacterial activity exhibited strong inhibitory activity against E. coli (20 mm at 24 mg/mL). Biosynthesised Ag-Zn-CuO trimetallic nanoparticles possess effective dye degradation and antibacterial action, indicating their promise for usage in catalysis, environmental decontamination and biomedical applications. Zeta potential ; Antibacterial activity ; Nanoparticle ; Nanomaterials ; Congo red ; Degradation (telecommunications) ; Crystallite ; Colloid ; Absorption (acoustics) Nanoparticles: synthesis and applications ; Copper-based nanomaterials and applications ; Laser-Ablation Synthesis of Nanoparticles
Authors: Celal Caner | Miraç Salpat | Salma Tabassum | Nuray Canikoğlu | Hüseyin Altundağ
Source: ChemistryOpen (article, 2025-05-24)
Field: Chemistry — Analytical Chemistry

Au(III) Extraction from Water Samples Using Triazole‐Coated Novel Magnetic Adsorbents and Analysis by Inductively Coupled Plasma‐Optical Emission Spectroscopy In the present investigation, the synthesis, characterization, and application of triazole-coated novel magnetic nanoparticles (MNPs) are systematically carried out, focusing on their efficacy as adsorbents for extracting Au(III) ions. The synthesis process involves the sequential coating of magnetite nanoparticles with tetraethylorthosilicate (SiO<sub>2</sub>), 3-chloropropyltriethoxysilane (CPTES), and 3,5-diamino-1,2,4-triazole (DAT). The MNPs synthesized at each stage are analyzed using high-resolution transmission electron microscopy (HRTEM), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray analysis (EDX), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and thermogravimetric and differential thermal analysis (DT/TGA) to confirm the successful coating of the desired adsorbent. Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>@CPTES@DAT MNPs selectively recover Au(III) ions under optimum conditions of pH = 2, 10 mg adsorbent amount, and 20 min contact time, and quantification of Au(III) ions is carried out by inductively coupled plasma-optical emission spectroscopy (ICP-OES). The method's suitability to adsorption isotherm and kinetic models is examined and found to be more compatible with the Freundlich isotherm and pseudo-second-order kinetic model. Relative standard deviation, limit of detection, and limit of quantification are calculated as 2.51%, 0.019, and 0.065 μg L<sup>-1</sup>, respectively, as analytical performance parameters. Several water samples are tested for Au(III) concentration using the optimized method. Thermogravimetric analysis ; Detection limit ; Analytical Chemistry (journal) ; Inductively coupled plasma ; Adsorption ; Fourier transform infrared spectroscopy ; Magnetic nanoparticles ; Freundlich equation ; High-resolution transmission electron microscopy ; Materials science ; Inductively coupled plasma atomic emission spectroscopy ; Spectroscopy ; Transmission electron microscopy ; Chemistry ; Nanoparticle ; Nuclear chemistry ; Chemical engineering ; Chromatography ; Nanotechnology ; Physical chemistry ; Plasma ; Organic chemistry Analytical chemistry methods development ; Electrochemical Analysis and Applications ; Extraction and Separation Processes
Authors: Yan‐Ting Lin | Chung-Yu Kuo | Yi Shen | A. V. Emelyanenko | Chun‐Yen Liu
Source: Gels (article, 2025-05-25)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Synthesis and Applications of Encapsulated Glycol-Stabilized Lyotropic Cholesteric Liquid Crystal Hydrogels The micro-phase segregation of two incompatible components on a nanometer scale results in a unique solvent-induced extended anisotropic arrangement. With the addition of a chiral dopant, lyotropic liquid crystals can be induced to adopt a helical structure, forming lyotropic cholesteric liquid crystals capable of reflecting incident light. In this study, to prevent fluid leakage in lyotropic materials, we encapsulated a series of hydrogel-stabilized lyotropic liquid crystals, presenting tunable structural colors visible in all directions, mimicking the color-changing characteristics of living organisms. Hydrogel scaffolds with controllable swelling behaviors were engineered by incorporating crosslinking monomers. To ensure stable integration of lyotropic liquid crystals, high-boiling-point ethylene glycol was employed as a fluid during the fabrication process. This study extensively explores the relationship between tensile force, temperature, and pressure and the color changes in lyotropic liquid crystals (LC). The results indicate that lyotropic LC membranes, stabilized by ethylene glycol and PDMS encapsulation, exhibit long-term stability, rendering them suitable for applications in temperature and pressure sensing. This approach ensures the continuous presence and stability of lyotropic liquid crystals within the hydrogel matrix. Lyotropic ; Materials science ; Lyotropic liquid crystal ; Liquid crystal ; Chemical engineering ; Ethylene glycol ; Self-healing hydrogels ; Membrane ; Nanotechnology ; Polymer chemistry ; Chemistry ; Liquid crystalline Liquid Crystal Research Advancements ; Micro and Nano Robotics ; Advanced Materials and Mechanics
Authors: В.А. Рольгейзер | В.А. Дышлевский | А.П. Науменко | И.С. Кудрявцева
Source: Южно-Сибирский научный вестник (article, 2025-04-30)
Field: Materials Science — Biomaterials

МЕТОДЫ И СПОСОБЫ ОБНАРУЖЕНИЯ СИГНАЛОВ В НЕРАЗРУШАЮЩЕМ КОНТРОЛЕ Рассмотрены существующие методы обнаружения и обработки сигналов в области теории информации, с целью выделения задачи, решение которой позволит улучшить надежность и качество анализа данных по сигналу. Критерии выявления сигналов предназначены для улучшения их извлечения из смеси с шумом, однако в радиолокационных системах, ввиду незнания и не изученности априорных вероятностей, эти критерии практически не используются. Поэтому обнаружение сигналов начинается с установления порогового значения, которое служит критерием для принятия решения. Однако, пороговое значение должно быть установлено таким образом, чтобы минимизировать как вероятность ложных срабатываний, так и вероятность пропуска реального сигнала. Это требует глубокого анализа статистических характеристик как полезного сигнала, так и шумов, которые могут исказить его восприятие. Показано, что выделение сигналов в шуме представляет собой одну из наиболее актуальных и значимых задач в современном мире. The existing methods of signal detection and processing in the field of information theory are considered in order to identify a problem, the solution of which will improve the reliability and quality of signal data analysis. The criteria for detecting signals are designed to improve their extraction from a mixture with noise, however, in radar systems, due to ignorance and lack of knowledge of a priori probabilities, these criteria are practically not used. Therefore, signal detection begins with setting a threshold value, which serves as a criterion for making a decision. However, the threshold value should be set in such a way as to minimize both the probability of false alarms and the probability of missing the real signal. This requires an in-depth analysis of the statistical characteristics of both the useful signal and the noise that can distort its perception. It is shown that the isolation of signals in noise is one of the most urgent and significant tasks in the modern world. Philosophy Magnesium Alloys: Properties and Applications ; Corrosion Behavior and Inhibition ; Mechanical stress and fatigue analysis
Authors: M.K. Krumova
Source:  (article, 2025-03-18)
Field: Materials Science — Materials Chemistry

RADIATION SAFETY AND ENVIRONMENTAL ASPECTS OF ENERGY EFFICIENCY: SUSTAINABLE SOLUTIONS FOR THE MODERN WORLD Radiation pollution refers to the release of radioactive substances into the environment, which can be caused by both natural and anthropogenic (human) activities. This pollution has serious consequences for ecosystems and human health. Efficient energy use ; Environmental safety ; Sustainable energy ; Sustainable development ; Environmental science ; Energy (signal processing) ; Computer science ; Environmental economics ; Engineering ; Political science ; Physics ; Renewable energy ; Economics ; Electrical engineering ; Environmental health Graphite, nuclear technology, radiation studies