jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Dandan Zhang | Zhiyu Wan | Kexin Shi | Ming Lu | Chao Gao
Source: Polymers (article, 2025-05-31)
Field: Materials Science — Materials Chemistry

Effects of Organic Acidic Products from Discharge-Induced Decomposition of the FRP Matrix on ECR Glass Fibers in Composite Insulators This study investigates the degradation mechanisms of fiber-reinforced polymer (FRP) matrices in composite insulators under partial discharge (PD) conditions. The degradation products may further cause deterioration of the electrical and chemical resistance (ECR) glass fibers. Using pyrolysis-gas chromatography-mass spectrometry (PY-GC-MS) and high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS-MS), the thermal degradation gas and liquid products of the degraded FRP matrix were analyzed, revealing the presence of organic acids. These acids form when the epoxy resin's cross-linked bonds break at high temperatures, generating anhydrides that hydrolyze into carboxylic acids in the presence of moisture. The hydrolyzation process is accelerated by hydroxyl radicals produced during PD. The resulting carboxylic acids deteriorate the glass fibers within the FRP matrix by degrading surface coupling agents and reacting with the alkali metal-silica network, leading to the substitution and precipitation of metal ions. Organic acids, particularly carboxylic acids, were found to have a more severe deteriorating effect on glass fibers compared to inorganic acids, with high temperatures exacerbating this process. These findings provide critical insights into the deterioration mechanisms of FRP under operational conditions, offering valuable guidance for optimizing manufacturing processes and enhancing the longevity of composite insulators. Composite number ; Materials science ; Composite material ; Decomposition ; Fibre-reinforced plastic ; Matrix (chemical analysis) ; Glass fiber ; Chemistry ; Organic chemistry High voltage insulation and dielectric phenomena ; Fiber-reinforced polymer composites ; Silicone and Siloxane Chemistry
Authors: Ansu Mathew | Ahmer A.B. Baloch | Alamin Mohammed Yakasai | Hemant Mittal | Vivian Alberts | Jayakumar Vandavasi Karunamurthy
Source: Engineering Applications of Artificial Intelligence (article, 2025-11-20)
Field: Materials Science — Materials Chemistry

Machine learning-driven crystal system prediction for perovskites using augmented XRD data F1 score ; Boosting (machine learning) ; Weighting ; Artificial neural network ; Crystal (programming language) ; Random forest ; Data pre-processing ; Support vector machine ; Preprocessor Machine Learning in Materials Science ; Perovskite Materials and Applications ; X-ray Diffraction in Crystallography
Authors: Farva Fiaz | Amna Siddique | Muhammad Fazle Rabbee | Muhammad Hanif | Saad M. Al‐Baqami | Shehzada Muhammad Sajid Jillani | Naif S. Almuqati | Md. Rezaur Rahman | Mohammad Asaduzzaman Chowdhury | Muhammad Nadeem Akhtar | Mohammad Mizanur Rahman Khan | Mohammed M. Rahman | Tahir Ali Sheikh
Source: Reviews in Inorganic Chemistry (review, 2025-01-31)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Advances in spin crossover metal complexes: a comprehensive review on its gas sensing applications Abstract Spin crossover metal complexes (SCO) are unique class of coordination compounds that can switch between LS and HS (low and high spin) states in response to external stimuli like pressure, temperature, gas molecules and light irradiation. This bistable behaviour makes them excellent candidate for many technological applications like data storage, molecular switches, actuators and sensing applications. The sensing mechanism of these complexes is based on the reversible change in their spin state which results in difference in magnetic, electrical and optical responses which can be evaluated with high sensitivity. This review provides a comprehensive analysis of the synthesis methods and characterization techniques of SCO metal complexes with a special focus on their gas sensing applications that remains unexplored in the literature. To address this gap this, review comprehensively examines approximately eight published researches in this field, with a particular focus on gases such as ammonia (NH 3 ), carbon dioxide (CO 2 ) and volatile organic compounds (VOCs) like ethanol, methanol and alcohol we highlight the sensitivity and selectivity of SCO based metal complexes with their future prospects to enhance their performances for the future gas detection technologies. The review aims to explore the potential of SCO complexes in gas sensing technology and highlight the ongoing progress in this field. To the best of our knowledge this is the first ever review article which is dedicated exclusively to the gas sensing application of SCO based metal complexes to provide a new way for the advancement in this emerging field. Chemistry ; Spin crossover ; Crossover ; Metal ; Nanotechnology ; Chemical physics ; Inorganic chemistry ; Organic chemistry Magnetism in coordination complexes ; Lanthanide and Transition Metal Complexes ; Metal complexes synthesis and properties
Authors: Ramazan Orhan
Source: Materials Testing (article, 2025-05-07)
Field: Materials Science — Materials Chemistry

Green synthesis of CuO nanoparticles using <i>Curcuma longa L</i>. extract: composite dielectric and mechanical properties Abstract Green synthesis, one of the methods of obtaining metallic nanoparticles using plants, is preferred because it is simpler, eco-friendly, and economical and has the ability to reduce metallic ions using phytochemicals in its structure. This study investigates the green synthesis of CuO nanoparticles using turmeric ( Curcuma longa L. ) extract, the structural, chemical, and morphological properties of the synthesized CuO nanoparticles, and the effects on the dielectric and mechanical properties of the nano-CuO-doped epoxy nanocomposites. The total phenolic content of turmeric extract was determined using the Folin-Ciocalteu method. The structural and morphological properties of the synthesized CuO nanoparticles were characterized by UV–Vis, FTIR, XRD, FE-SEM, EDX, and TEM. The charge distribution of the nanoparticles was determined using a Zetasizer. It was determined that the shape of the synthesized CuO nanoparticles was spherical and the average particle size was 62 nm. Nanofilms and nanocomposite materials were prepared by adding the synthesized CuO nanoparticles to epoxy resin, and their effects on the dielectric and mechanical properties were investigated. An increase in the ε ′ and ε ′′ values of the doped-nanocomposite films was observed compared with those of the pure epoxy film. It was determined that nanocomposites also improved the tensile strength and hardness values. Curcuma ; Composite number ; Nanoparticle ; Materials science ; Dielectric ; Composite material ; Nanotechnology ; Traditional medicine ; Optoelectronics ; Medicine Nanoparticles: synthesis and applications ; Copper-based nanomaterials and applications ; Magnesium Oxide Properties and Applications
Authors: Mirel Glevitzky | Mihai-Teopent Corcheş | Sorina Şerban | Maria-Laura Strugariu | Imre Kiss | Mihaela Laura Vică
Source: Applied Sciences (article, 2025-10-27)
Field: Chemistry — Organic Chemistry

Sustainable Recycling of Used Cooking Oils Through the Production of Biodegradable Antimicrobial Soaps The valorization of waste materials is essential for sustainability, with used cooking oils (UCOs) offering potential for transformation into valuable functional products. The study investigates the oxidative stability of sunflower and olive oils subjected to high temperatures (160–200 °C) and frying on their physico-chemical properties (acidity, peroxide and iodine value, total polar compounds). Significant deterioration occurred above 180 °C, with increased peroxide and polar compounds and reduced iodine values. A technological process for the purification and saponification of UCOs (sunflower, olive, and palm oils) was developed, demonstrating the potential to transform pollutant waste into a valuable and sustainable product—soap. The incorporation of oregano and thyme essential oils (EOs), identified by GC-FID as rich sources of carvacrol, thymol, p-cymene, and limonene, improved the functional properties of the soaps. The antimicrobial activity of soaps largely relates to their alkaline pH, while the incorporation of EOs contributes to additional antimicrobial effects, obtaining zones of inhibition of up to 10.8 mm against Staphylococcus aureus and up to 7.6 mm against Escherichia coli for palm oil. The study highlights a sustainable approach that transforms waste oils into functional soaps with EOs for added antimicrobial benefits. Antimicrobial ; Saponification ; Sunflower ; Peroxide ; Propionate Edible Oils Quality and Analysis ; Essential Oils and Antimicrobial Activity ; Polymer Science and PVC
Authors: Sourjya Bhattacharjee | Kusu Susan Cyriac
Source: Current Journal of Applied Science and Technology (review, 2025-04-08)
Field: Materials Science — Materials Chemistry

Genotoxicity of Carbon Black Nanoparticles in Humans: A Review Due to their special physicochemical properties carbon black nanoparticles (CBNPs) receive comprehensive industrial attention. The increasing application of nanoparticles creates critical safety problems regarding genetic material damage and human health complications from human contact. CBNPs induce DNA damage through oxidative stress, inflammatory reactions, and direct DNA binding, leading to genomic instability, elevated mutation rates, and chromosomal damage. The results show that contact with CBNPs creates systemic body stress that raises vulnerability to cancer formation and multiple severe medical conditions. Proper regulatory safety measures and risk assessment protocols need to be applied through both technological improvements and safer material development to guarantee safety standards. Future investigations regarding CBNP exposure effects must study their enduring consequences along with setting maximum work safety boundaries because the International Agency for Research on Cancer has classified these compounds as potential cancer-causing substances. Understanding all dimensions of CBNPs provides essential bases for developing protective safeguards that maintain public health protection standards due to their industrial incorporation. Genotoxicity ; Carbon black ; Carbon Nanoparticles ; Nanoparticle ; Chemistry ; Nanotechnology ; Medicine ; Internal medicine ; Materials science ; Toxicity Nanoparticles: synthesis and applications
Authors: Yiwei Jiang | Dachen Wang | Zijie J. Wang | Huang Dai | Chen Wang | Yingli Wang
Source: Food Science & Nutrition (article, 2025-12-01)
Field: Chemistry — Analytical Chemistry

Recent Advances in Spectroscopy and Imaging Techniques for Nondestructive Detection of Meat Quality and Safety Meat is one of the most important foods in the human diet and is a major source of animal protein. It is essential to detect meat quality and safety for ensuring that high-quality foods are delivered to consumers. Advanced spectroscopic techniques (near-infrared spectroscopy, Raman spectroscopy, fluorescence spectroscopy, and terahertz spectroscopy) and imaging techniques (hyperspectral imaging, multispectral imaging, X-ray imaging, and thermal imaging) provide feasible means for testing organoleptic properties, chemical composition, physicochemical properties, and safety indicators of meat. This review aimed to summarize the latest developments of spectroscopic and imaging techniques for meat quality and safety detection. The principles, multi-scenario applications, advantages, disadvantages, and future prospects of these techniques are discussed. Spectroscopic techniques have been demonstrated to accurately detect changes in the chemical constituents and physical properties of meat, but can only perceive localized sample information. Imaging techniques provide visual information on the spatial distribution as well as physical and chemical characteristics of meat, but have a slower detection rate. Despite the remarkable outcomes attained by spectroscopy and imaging techniques in laboratory settings, their industrial applications remain encumbered by challenges, including substantial expenses and intricate data analysis procedures. In order to improve the comprehensiveness and accuracy of detection, future research directions might focus on the integration of multiple techniques combined with deep learning algorithms. Multispectral image ; Quality (philosophy) ; Organoleptic ; Chemical imaging ; Digital imaging ; Pattern recognition (psychology) ; Imaging spectroscopy ; Spectral imaging Spectroscopy and Chemometric Analyses ; Spectroscopy Techniques in Biomedical and Chemical Research ; Identification and Quantification in Food
Authors: Zhihui Li | Gang Du | Sen Yang | Xuerong Lu | Fuli Zheng | Bin Hao | Peng Zhan | Guangmao Li | He Zhang
Source: Polymers (article, 2025-09-01)
Field: Materials Science — Polymers and Plastics

Self-Healing Imidazole-Cured Epoxy Using Microencapsulated Epoxy-Amine Chemistry Epoxy resins used in reactors are prone to cracking and failure due to mechanical vibration, thermal stress, and ultraviolet radiation. Improving their resistance to damage is important to extend the service life of reactors. This investigation develops a self-healing imidazole-cured epoxy resin for reactors using epoxy microcapsules and amine microcapsules prepared by electrospraying-interfacial polymerization (ES-IP) microencapsulation technique. Firstly, this investigation studies the feasibility of using double nozzles for simultaneous spraying to improve the preparation of small-sized microcapsules. After successful synthesis, the healing performance of self-healing imidazole-cured epoxy based on the microencapsulated epoxy-amine chemistry was studied, focusing on the influence of the ratio, concentration, and size of the two microcapsules on the healing efficiency, and further exploring the thermal stability of the self-healing performance. The addition of microcapsules to the mechanical properties was also investigated. Results show that the double-nozzle technique can prepare microcapsules with controllable sizes (20~200 μm). The self-healing imidazole-cured epoxy exhibits high self-healing performance, reaching 100% at the optimal ratio with 10.0 wt% 50~100 μm microcapsules. Although the added microcapsules reduce the tensile strength of the material, they improve its high-temperature aging resistance. The above investigation is significant for developing self-healing fiber-reinforced epoxy-based composite materials for reactors. Epoxy ; Imidazole ; Amine gas treating ; Chemistry ; Polymer chemistry ; Materials science ; Organic chemistry Polymer composites and self-healing ; Flame retardant materials and properties ; Lignin and Wood Chemistry
Authors: Xiang Yuan Xiong | Sijia Li | Yumin Li | Suying Xu | Chang Guo | Leyu Wang
Source: Chemical Science (article, 2025-01-01)
Field: Materials Science — Materials Chemistry

Reversible redox <sup>19</sup>F magnetic resonance imaging nanoprobes for monitoring the redox state <i>in vivo</i> Redox processes are indispensable for physiology, and dysregulated redox balance is critical in various metabolic diseases. The development of imaging diagnosis tools for real-time monitoring of the redox state <i>in vivo</i> is of great importance yet highly challenging. Here, we designed trifluoromethyl (-CF<sub>3</sub>) grafted selenide polymer nanoprobes for reversible redox sensing <i>in vivo</i>. Based on the reversible shift of the <sup>19</sup>F-nuclear magnetic resonance (NMR) peak between oxidation and reduction states of the nanoprobes exposed to different redox species, the <sup>19</sup>F-magnetic resonance imaging (MRI) signal ratio of <i>S</i> <sub>Ox</sub>/(<i>S</i> <sub>Ox</sub> + <i>S</i> <sub>Red</sub>) was successfully applied to monitor the redox state in a tumor. These nanoprobes demonstrated good biocompatibility and great potential for exploring physiological and pathological redox processes in deep tissues. We envision that this work will enable the rational design of <sup>19</sup>F-MRI nanoprobes with excellent redox response for the real-time monitoring of the redox state at the lesion location. Redox ; Chemistry ; In vivo ; Magnetic resonance imaging ; Nuclear magnetic resonance ; Inorganic chemistry ; Physics ; Medicine Advanced Nanomaterials in Catalysis ; Nanoplatforms for cancer theranostics ; Electrochemical sensors and biosensors
Authors: M. H. N. Revon | Namal Priyantha
Source: Research Square (preprint, 2025-12-31)
Field: Materials Science — Materials Chemistry

Phytochemically Aided Synthesis of MgO Nanoparticles Utilizing Orange Peel Extract for Inhibition of SS Grade 202 against Corrosion in HCl Environment Corrosion ; Orange (colour) ; Nanoparticle ; Metal ; Adsorption ; Alloy ; Oxide ; Electrochemistry Corrosion Behavior and Inhibition ; Magnesium Oxide Properties and Applications ; Magnesium Alloys: Properties and Applications
Authors: A. Ganga | M Divyashree | Samit Dutta
Source: Archives of Current Research International (article, 2025-04-04)
Field: Materials Science — Biomaterials

Electrospinning and Its Applications in the Food Sector Electrospinning is an advanced nanotechnology-based technique that enables the fabrication of ultrafine fibers with unique physicochemical properties. In the food sector, electrospinning has emerged as a promising tool for encapsulating bioactive compounds, improving the stability and controlled release of nutrients, analysis of different food components, pesticides, antibiotics, production of different food packaging systems includes antibacterial packaging, antioxidant packaging and intelligent packaging. This technology allows for the development of biodegradable, functionalized, and nanostructured materials that can enhance food quality, safety, and shelf life. Additionally, electrospun nanofibers can be used to incorporate antimicrobial agents, probiotics, and flavour compounds, offering novel applications in food preservation and fortification. However, challenges related to scalability, regulatory approval, and material selection remain critical barriers to large-scale industrial adoption. This review provides a comprehensive overview of electrospinning principles, techniques, Factors affecting the process, and applications, highlighting its future prospects and limitations. Electrospinning ; Business ; Food sector ; Materials science ; Composite material ; Agriculture ; Polymer ; Ecology ; Biology Electrospun Nanofibers in Biomedical Applications
Authors: José Miguel Monzón-Verona | Santiago García-Alonso | Francisco Jorge Santana-Martín
Source: Preprints.org (preprint, 2025-11-19)
Field: Materials Science — Materials Chemistry

Fine-Tuning a Local LLM for Thermoelectric Generators with QLoRA: From Generalist to Specialist This work establishes a large language model (LLM) specialized in the domain of thermoelectric generators (TEGs), for deployment on local hardware. Starting with the generalist JanV1-4B model, an efficient fine-tuning (FT) methodology (QLoRA) was employed, modifying only 3.18% of the total parameters of this base model. The key to the process is the use of a custom-designed dataset, which merges deep theoretical knowledge with rigorous instruction tuning to refine behavior and mitigate catastrophic forgetting. Performance evaluation, conducted using a questionnaire of increasing complexity, revealed that the FT JanV1-4B-expert-TEG modelled in this work achieves an overall accuracy of 81%, demonstrating capabilities ranging from the correct formulation of equations to critical design reasoning. This study validates the specialization of LLMs using QLoRA as an effective and accessible strategy for developing highly competent engineering support tools, eliminating dependence on large-scale computing infrastructures. Software deployment ; Process (computing) ; Key (lock) ; Work (physics) ; Domain (mathematical analysis) ; Thermoelectric effect ; Generalist and specialist species Advanced Thermoelectric Materials and Devices ; Parallel Computing and Optimization Techniques ; Ferroelectric and Negative Capacitance Devices
Authors: Gillian Binley | Tizazu H. Mekonnen
Source: Macromolecular Rapid Communications (article, 2025-07-10)
Field: Materials Science — Biomaterials

Controlled Degradation of PBAT for PBAT/PLA Blend Melt‐Blown Nonwovens This study utilized the chain-scission capability of peroxides, such as aqueous hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), to induce controlled degradation of poly(butylene adipate-co-terephthalate)(PBAT) through reactive batch mixing with the objective of increasing the melt flow index (MFI). The effects of the peroxide concentration and processing time were examined, and the results showed that concentration had the greatest impact, with an approximate 450% increase in MFI at the optimal peroxide concentration. On the other hand, the peroxide treatment had a minimal impact on crystallinity and thermal properties. Degradation was deemed to occur chiefly via random chain scission with contributions from heat and hydrolysis, as supported by proton nuclear magnetic resonance spectroscopy (<sup>+</sup>HNMR). The treated PBAT sample showed promise in melt-blown micro-fiber production, producing fibers with a 68% smaller average diameter than that of the untreated PBAT. The treated PBAT was then blended with various levels of high MFI poly(lactic acid) (PLA) to optimize properties and cost of the resulting micro-fiber material. As expected, the blends demonstrated increased tensile strength and decreased elongation at break with higher PLA contents, up to 30% and 13%, respectively, successfully balancing the material properties of the PBAT starting material. Despite these favorable tensile properties, the material blend remained suboptimal due to evidence of phase separation. To bridge this incompatibility, maleation was implemented, resulting in a polymer characterized by improved homogeneity, thereby enabling the production of uniform fibers without compromising desired tensile properties. The melt-blowing generated PBAT-PLA micro-fibers can have applications as a sustainable alternative for polypropylene-dominated HVAC air filters, medical masks, etc. Degradation (telecommunications) ; Materials science ; Composite material ; Polymer science ; Chemical engineering ; Computer science ; Engineering biodegradable polymer synthesis and properties ; Microplastics and Plastic Pollution ; Textile materials and evaluations
Authors: Mamta Sahu | Mainak Ganguly | Priyanka Sharma
Source: RSC Advances (article, 2025-01-01)
Field: Chemistry — Spectroscopy

Fluorescent silver hydrosol for the dual fluorometric sensing of gallic acid and Cd<sup>2+</sup> Herein, silver-enhanced fluorescence was obtained using a small molecule of salicylaldehyde (SL) in an alkaline solution in the presence of silver nitrate. Ag<sup>+</sup> was reduced to Ag<sup>0</sup>, while SL was oxidized to the quinone form OSL. OSL was a very weak fluorophore and exhibited metal-enhanced fluorescence (MEF) in the presence of proximal silver nanoparticle surfaces. MEF was selectively quenched by gallic acid and restored by Cd<sup>2+</sup>. Thus, a dual-sensing platform was obtained for gallic acid [limit of detection (LOD) = 1.77 × 10<sup>-5</sup> M; linear detection range = 10<sup>-8</sup> to 5 × 10<sup>-5</sup> M)] and Cd<sup>2+</sup> (LOD = 2.4 × 10<sup>-6</sup> M; linear detection range = 5 × 10<sup>-8</sup> to 10<sup>-6</sup> M) in a one-pot. The observed lightning rod effect and higher radiative decay rate were ascribed to MEF, while replacing the capping agents was responsible for the tuning of MEF. The sensing protocol was applied to natural samples from real sample sources, and satisfactory results were obtained. Gallic acid ; Fluorescence ; HYDROSOL ; Chemistry ; Nuclear chemistry ; Photochemistry ; Organic chemistry ; Antioxidant ; Optics Molecular Sensors and Ion Detection ; Advanced biosensing and bioanalysis techniques ; Nanocluster Synthesis and Applications