jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Shivali Sharma | Gaurav Sharma | Shrejal Tiwari | Amit Kumar | Deepak Singh | Vijayanshi Nupur Abhaykumar | A. S. Sundouri | Deoshish Attri | Raman Choudhary
Source: International Journal of Advanced Biochemistry Research (review, 2025-05-01)
Field: Chemistry — Analytical Chemistry

Potential application of remote sensing in fruit crops: A review Remote sensing is the practice of acquiring information about an object or region without direct physical contact. It involves detecting, recording, and analyzing reflected or emitted energy to support various applications. Ground, aerial, and satellite platforms equipped with remote sensing technologies provide detailed spectral, spatial, and temporal data on vegetation health and vigour, which is crucial for crop yield estimation. In horticulture, particularly fruit crops, remote sensing offers precise data through diverse platforms and sensors with varying spatiotemporal, spectral, and radiometric resolutions. Its accessibility and accuracy make it a valuable tool in precision horticulture for assessing crop health. Variations in pigments like chlorophyll and carotenoids, which indicate plant stress, can be detected through changes in spectral reflectance. Vision-based fruit detection, a key aspect of automation in horticulture, supports accurate fruit identification, enabling efficient resource use and improved returns. Mapping and estimating yields based on individual fruit data enhance productivity. Overall, remote sensing continues to evolve as a vital technology in the future of profitable and sustainable fruit production. Remote sensing ; Environmental science ; Agroforestry ; Agricultural engineering ; Geography ; Engineering Spectroscopy and Chemometric Analyses ; Remote Sensing in Agriculture ; Smart Agriculture and AI
Authors: Abid Zaman | Salhah Hamed Alrefaee | Hifsa Shahid | Abduvali Sottarov | S. G. Asadullayeva | Reem Alreshidi | Vineet Tirth | Ali Algahtani
Source: RSC Advances (article, 2025-01-01)
Field: Materials Science — Materials Chemistry

Anomalous Hall and multipiezo phenomena in a two-dimensional altermagnetic Janus Cr <sub>2</sub> S <sub>2</sub> Se The emergence of altermagnetism, which combines a compensated magnetic configuration with momentum-dependent spin band splitting, has introduced new opportunities for spintronic research. In particular, the integration of altermagnetism with multifunctional properties such as piezoelectricity, piezovalley coupling, and piezomagnetism that offers a promising route toward strain-engineered magneto-electronic devices. Motivated by this perspective, we explored the two-dimensional Janus monolayer Cr<sub>2</sub>S<sub>2</sub>Se using density functional theory. Our results reveal that the system is both thermodynamically and dynamically stable, while its magnetic ground state is antiferromagnetic with a Néel temperature of approximately 320 K. The electronic structure demonstrates an indirect band gap of about 0.14 eV and pronounced non-relativistic spin splitting (∼0.46 eV) at the high-symmetry points, a clear hallmark of altermagnetic behavior. The lack of mirror symmetry in the Janus configuration further induces an out-of-plane piezoelectric response, yielding sizable piezoelectric coefficients (<i>e</i> <sub>31</sub> ≈ 69.80 pC m<sup>-1</sup> and <i>d</i> <sub>31</sub> ≈ 0.36 pm V<sup>-1</sup>). Additionally, we observed a strain-driven piezovalley effect, producing a valley polarization as large as 142 meV. Interestingly, carrier doping under applied strain activates a finite piezomagnetic response. The coexistence of these distinct functionalities such as altermagnetism, piezovalley, piezoelectricity, and piezomagnetism that's positions Cr<sub>2</sub>S<sub>2</sub>Se as a compelling candidate for strain-tunable valleytronic and spintronic applications. Importantly, its potential fabrication <i>via</i> methods such as mechanical exfoliation or chemical vapor deposition enhances the experimental feasibility of this material. Spintronics ; Janus ; Antiferromagnetism ; Piezoelectricity ; Ground state ; Spin polarization ; Doping ; Point reflection 2D Materials and Applications ; Heusler alloys: electronic and magnetic properties ; Topological Materials and Phenomena
Authors: Chaoqi Dai | Sikai Chen | Bo Wen | Bingrui Li | Lei Shao | Fangfei Ming | Shaozhi Deng
Source: Nanomaterials (article, 2025-12-04)
Field: Materials Science — Materials Chemistry

Unveiling Boundary-Localized Interfacial Interactions in Temperature-Controlled Au-Assisted Exfoliation of MoS2 Monolayers Gold-assisted exfoliation is an effective approach to obtain clean and large-area monolayers of transition metal dichalcogenides, yet the microscopic evolution of interfacial adhesion remains poorly understood. Here, we investigate temperature-controlled exfoliation of MoS<sub>2</sub> between 30 and 170 °C. Based on optical microscopy image analysis, mild heating slightly improves the exfoliation yield, which is associated with the release of interfacial contaminants and trapped gases-these substances enhance the adhesion between gold and molybdenum disulfide (Au-MoS<sub>2</sub>). Unexpectedly, as revealed by AFM, SEM-EDS, and Raman analyses, parts of the Au film start to peel off from the underlying Ti adhesion layer at approximately 100 °C. This Au film detachment, resulting from the surprisingly weak Au-Ti adhesion, serves as a unique probe for interfacial strength: it preferentially occurs at the boundaries of MoS<sub>2</sub> flakes, indicating that the reinforcement of the Au-MoS<sub>2</sub> interaction originates at the edges rather than being uniformly distributed. At higher temperatures (>130 °C), Au detachment expands to larger areas, indicating that boundary-localized adhesion progressively extends across the entire interface. Additional STM/STS measurements further confirm that thermal annealing improves local Au-MoS<sub>2</sub> contact by removing interfacial species and enabling surface reconstruction. These findings establish a microscopic picture of temperature-assisted exfoliation, highlighting the dual roles of interfacial contaminant release and boundary effects, and offering guidance for more reproducible fabrication of high-quality 2D monolayers. Monolayer ; Exfoliation joint ; Adhesion ; Raman spectroscopy ; Annealing (glass) ; Molybdenum disulfide ; Metal ; Transition metal ; Fabrication 2D Materials and Applications ; Graphene research and applications ; Molecular Junctions and Nanostructures
Authors: Mahmoud M. Ghuniem | Hoda Refai | Khaled Rabie
Source: Scientific Reports (article, 2025-12-23)
Field: Chemistry — Analytical Chemistry

Health risk assessment of Sudan dyes, toxic elements, and pesticide residues in Egyptian spices Sudan dyes, toxic elements, and pesticide residues in spices pose potential health risks through long-term exposure, emphasizing the need for regular monitoring. This study evaluated their occurrence and toxicological impact in 80 spice samples collected from Cairo, Giza, Qalyubia, Faiyum, and Alexandria governorates in Egypt. Advanced analytical techniques including High-Performance Liquid Chromatography (HPLC), Gel Permeation Chromatography (GPC), Inductively Coupled Plasma Mass Spectrometry (ICP-MS), Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS), and Gas Chromatography-Mass Spectrometry (GC-MS) were used for detection. Several metals: antimony (Sb), arsenic (As), cadmium (Cd), chromium (Cr), cobalt (Co), copper (Cu), iron (Fe), lead (Pb), manganese (Mn), nickel (Ni), and zinc (Zn) were found in nearly all samples, except As, which appeared in 75%. Mercury (Hg) and tin (Sn) were below quantification limits. Lead exceeded permissible limits in 5% of hot chili, paprika, and cumin samples. Despite being banned, Sudan I and IV dyes were detected in all tested commodities, reaching 52.3 mg/kg in curry and 6.5 mg/kg in hot chili, while Para Red and Sudan 7B were absent. Although metals and pesticides were within safe exposure limits, the detection of Sudan dyes indicates potential health concerns and the need for continued regulatory control. Arsenic ; Cadmium ; Pesticide ; Mercury (programming language) ; Pesticide residue ; Inductively coupled plasma mass spectrometry ; Health risk assessment ; Risk assessment ; Health risk ; Mass spectrometry Dye analysis and toxicity ; Heavy Metals in Plants ; Heavy metals in environment
Authors: Run Quan | Xiaolong Wu | Junjie Zhang | Rongxu Liu | Jianchun Han | Danyi Liu
Source: Frontiers in Cellular and Infection Microbiology (review, 2025-06-17)
Field: Chemistry — Analytical Chemistry

Extraction, purification, biological effects and applications of acrosin: a review Acrosin is a proteolytic enzyme in the sperm acrosome that can stimulate sperm to penetrate the zona pellucida, causing the fertilization of the oocyte. Its activity is a crucial indicator of the sperm's fertilization ability, which is critical in mammalian and human reproduction. However, there exists a lack of a comprehensive review of acrosin. In this study, we compared the extraction methods of acrosin, including acid extraction, buffer extraction, and saline extraction. The main methods for purifying acrosin, such as ammonium sulfate precipitation, ultrafiltration, dialysis, gel filtration chromatography, ion-exchange chromatography, and affinity chromatography, are reviewed. In addition, a detailed overview of the biological functions, inhibitors and applications of acrosin are outlined. This study provides methods for the extraction and purification of acrosin and some theoretical basis for the study of its properties. This provides a reference for further research on acrosin. Acrosin ; Extraction (chemistry) ; Chemistry ; Chromatography ; Biology ; Computational biology ; Anatomy ; Semen ; Acrosome Dye analysis and toxicity ; melanin and skin pigmentation ; Biochemical Analysis and Sensing Techniques
Authors: Apurba Paul | G. Timp
Source: Advanced Materials Technologies (article, 2025-06-05)
Field: Materials Science — Electronic, Optical and Magnetic Materials

How to Manufacture Photonic Metamaterials Abstract Metamaterials, which started off focused on optical and electromagnetic applications such as invisibility and “hyperlenses” with resolution beyond the diffraction limit, has now broadened in scope to include pretty much everything from wireless communications (antennas), lasers, computing, solar power, sports equipment, medicine; acoustics, structural mechanics and even air conditioning. Yet, the promises derived from these applications have not been exploited in earnest and the market for them has not grown much so far, likely because a facile and economical method for fabricating them without defect has not emerged. This review scrutinizes the methods used to manufacture metamaterials with the aim to remedy this shortcoming. Metamaterial ; Photonics ; Photonic metamaterial ; Materials science ; Optoelectronics Metamaterials and Metasurfaces Applications ; Photonic Crystals and Applications ; Plasmonic and Surface Plasmon Research
Authors: Oleksandra Havrylenko | Yuliya Kondratova | Lyudmyla Ivanets | Ihor Berdey | Liliya Logoyda
Source: BMC Chemistry (article, 2025-05-25)
Field: Chemistry — Analytical Chemistry

Optimization of HPLC methods for the development of quality control methods of combined powder formulations with paracetamol, phenylephrine hydrochloride, pheniramine maleate Our main goal was to optimize HPLC methods for the determination of a combined powder containing paracetamol, phenylephrine hydrochloride, and pheniramine maleate based on the indicators «Quantitative determination», «Uniformity of dosage units», and «4-aminophenol». Precise HPLC methods were developed for determining paracetamol, phenylephrine hydrochloride, pheniramine maleate, and the impurity of paracetamol (4-aminophenol). The method was optimized by selecting the chromatographic column and gradient elution to balance component separation and chromatographic time. Separation was achieved using a diode array detector at 273 nm («Quantitative determination», «Uniformity of dosage units») and 225 nm (4-aminophenol) with a gradient mobile phase consisting of a 1.1 g/L sodium octanesulfonate solution (pH 3.2), methanol, and a chromatographic column Zorbax SB-Aq. The method showed a linear response in the range of 160-360 µg/mL for paracetamol, 5-11 µg/mL for phenylephrine hydrochloride, and 10-22 µg/mL for pheniramine maleate. The optimized method, validated according to ICH guidelines, reduced run times to 20 min for impurity analysis and 10 min for active ingredients, which is twice as fast as the official pharmacopeial method. The developed methods were successfully applied for the quality control of this powder. High-performance liquid chromatography ; Chromatography ; Chemistry Analytical Methods in Pharmaceuticals ; Analytical Chemistry and Chromatography ; Analytical chemistry methods development
Authors: Neela M. Bhatia | Anagha Ajagekar | Rutuja Chougale
Source: Journal of Research in Pharmacy (article, 2025-08-22)
Field: Chemistry — Analytical Chemistry

Development and validation of a UV-Spectrophotometric method using methanol for the simultaneous estimation of doxycycline and voriconazole in pharmaceutical formulations The development and validation of a UV-spectrophotometric method for the simultaneous estimation of doxycycline and voriconazole in pharmaceutical formulations are presented in this study. This method was designed to address the limitations of existing analytical techniques by providing a simple, accurate, and efficient approach suitable for routine quality control and therapeutic monitoring. Methanol was selected as the solvent, and estimation was done using the multiwavelength method of analysis. Estimation of doxycycline was done by recording a difference of absorbance at 358 and 402 nm while the estimation of voriconazole was done by recording absorbance difference at 428 and 463 nm. The difference of absorbance for estimation of two drugs is recorded for elimination of interference of the other drug. The method demonstrated excellent linearity, with calibration curves showing strong correlation coefficients. Accuracy was confirmed through satisfactory recovery rates, and precision was validated with %RSD values below 2% for both intraday and inter-day measurements. The method exhibited robustness and ruggedness, maintaining consistent performance under varying experimental conditions and across different analysts. Low limits of detection and quantification underscored the method's sensitivity. This UV-spectrophotometric method offers significant practical advantages, including reduced analysis time and cost-effectiveness, making it highly suitable for adoption in pharmaceutical laboratories. The study concludes that this method is a valuable tool for improving drug quality and safety, contributing to advancements in pharmaceutical sciences and supporting enhanced productivity in drug analysis. Doxycycline ; Methanol ; Voriconazole ; Chromatography ; Chemistry ; Organic chemistry ; Microbiology ; Antibiotics ; Biology ; Biochemistry ; Antifungal Analytical Methods in Pharmaceuticals ; Antibiotics Pharmacokinetics and Efficacy ; Analytical chemistry methods development
Authors: Yuting Ye | Yongda Yan | Chen Li | Yanquan Geng
Source: Small Methods (article, 2025-11-28)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Large‐Area Nanowire Arrays Achieving Surface Lattice Resonance for Highly Sensitive SERS Applications Achieving high sensitivity, signal uniformity, and cost-effective large-scale fabrication of large-area surface-enhanced Raman scattering (SERS) substrates continues to pose a significant challenge. In order to break through the limitations of conventional SERS substrates and to meet the demands of high-throughput production, a strategy integrating programmable cyclic deposition with high-precision nanoskiving techniques is presented for the fabrication of large-area periodic nanowire arrays with adjustable geometric parameters and versatile material compositions in this study. By precisely controlling the stacking sequence and nanoskiving parameters, the structural dimensions and material composition can be finely tuned, which significantly enhances the coupling efficiency between localized surface plasmon resonance and Rayleigh anomaly, thereby enabling the excitation of high-quality-factor surface lattice resonances. The resulting arrays exhibit excellent structural integrity, uniform electromagnetic field distribution, and good signal reproducibility (RSD = 1.9%) over ≈206 mm<sup>2</sup>. Notably, Ag150-Gap20-Ag150-Gap115-Period435 periodic nanowire arrays as the substrate exhibit excellent sensitivity with a detection limit as low as 1 × 10<sup>-12 </sup>M for the target. This strategy offers an efficient, scalable, and material-adaptive method for high-throughput fabrication of SERS substrates, thereby facilitating its application in environmental monitoring, food safety, and bioanalysis. Fabrication ; Raman scattering ; Nanowire ; Stacking ; Surface plasmon resonance ; Rayleigh scattering ; Surface roughness ; Substrate (aquarium) ; Nanosensor Gold and Silver Nanoparticles Synthesis and Applications ; Plasmonic and Surface Plasmon Research ; Optical Coatings and Gratings
Authors: Junlin Deng | Tinghui Liu | Xia Chen | Li‐Tao Tong | Chunmei Gu | Zhiqiang Shi | Yuehang Yang | Ruiling Zhan | Zhuoya Xiang | Jian Chen | Yan Wan | Manyou Yu
Source: Foods (article, 2025-08-27)
Field: Chemistry — Analytical Chemistry

Characteristics of Polyphenols of Black Hulless Barley Bran and Its Anti-Diabetic Activity Polyphenols play a crucial role in promoting human health. This study aims to investigate the polyphenols of black hulless barley bran (HBP) and evaluate their anti-diabetic mechanisms in vivo. Using UPLC-QTOF-MS/MS, 27 compounds were identified in HBP, including four phenolic acids, 14 flavonoids, and nine anthocyanidins. High contents of Chrysoeriol 7-O-glucuronide (42.09 mg/g), Cyanidin 3-O-glucoside (21.02 mg/g), and Cyanidin 3-O-(6″-O-malonyl)-glucoside (24.45 mg/g) were quantified via UPLC in HBP. Administration of HBP significantly reduced fasting blood glucose (FBG), improved glucose intolerance and lipid profiles, and alleviated liver and pancreatic damage in type 2 diabetic (T2DM) mice. Furthermore, it enhanced serum antioxidant enzyme activities and modulated inflammatory cytokines. Transcriptomic analysis revealed that HBP influenced signal transduction and the immune system, particularly in key signaling pathways, including Hippo, TGF-beta, HIF-1, and p53, associated with T2DM. Although HBP had minimal impact on gut microbiota diversity and SCFA levels, it presents a promising candidate for T2DM intervention through its multifaceted mechanisms. Polyphenol ; Antioxidant ; Prebiotic ; Food science ; Anthocyanidins ; Chemistry ; Biochemistry ; Bran ; Pharmacology ; Biology Chromatography in Natural Products ; Natural Antidiabetic Agents Studies ; Medicinal Plants and Bioactive Compounds
Authors: Ryan Kelly | Chao Wang | Hsien‐Jung L. Lin | Siqi Huang | Garrett Haynie | Kenneth Triggs | Y.H. Chang | David J. Hansen | Thy Truong | Xiaofeng Xie
Source: Research Square (preprint, 2025-11-18)
Field: Chemistry — Spectroscopy

High-Throughput Label-free Single-Cell Proteomics Enabled by Multicolumn NanoLC with a 5-min Cycle Time Proteome ; Proteomics ; Workflow ; Quantitative proteomics ; Profiling (computer programming) ; Limiting ; Label-free quantification Advanced Proteomics Techniques and Applications ; Single-cell and spatial transcriptomics ; Mass Spectrometry Techniques and Applications
Authors: Mateusz Staniak | Ting Huang | Amanda M. Figueroa‐Navedo | Devon Kohler | Meena Choi | Trent Hinkle | Tracy Kleinheinz | Robert W. Blake | Christopher M. Rose | Yingrong Xu | Pierre M. Jean Beltran | Liang Xue | Małgorzata Bogdan | Olga Vitek
Source: Bioinformatics (article, 2025-01-31)
Field: Chemistry — Spectroscopy

Relative quantification of proteins and post-translational modifications in proteomic experiments with shared peptides: a weight-based approach The approach is implemented in an open-source R package MSstatsWeightedSummary. The package is currently available at https://github.com/Vitek-Lab/MSstatsWeightedSummary (doi: 10.5281/zenodo.14662989). Code required to reproduce the results presented in this article can be found in a repository https://github.com/mstaniak/MWS_reproduction (doi: 10.5281/zenodo.14656053). Posttranslational modification ; Computational biology ; Computer science ; Chemistry ; Biochemistry ; Biology ; Enzyme Advanced Proteomics Techniques and Applications ; Viral Infectious Diseases and Gene Expression in Insects ; vaccines and immunoinformatics approaches
Authors: T. S. Moise | Scott R. Summerfelt | J. Rodriguez
Source: Electronics (article, 2025-02-19)
Field: Materials Science — Materials Chemistry

A Framework for Embedded Non-Volatile Memory Development: Examples from Pb(ZrxTi1−x)O3 Ferroelectric Memory Development at Texas Instruments An overview of the steps employed to advance non-volatile Pb(ZrxTi1−x)O3-based materials from parallel capacitor array test structures to embedded 130 nm (1.5 V operation) memory product release is presented. Specific development stages include parallel capacitor array evaluation, capacitor characterization array development, memory macro creation and measurement, and initial product design and qualification. Representative data, learning goals, and critical outputs will be presented for each development phase. We note that the cost and complexity of the development effort increase dramatically as the new technology approaches high-volume manufacturing. We hope that the documentation of our experiences in this manuscript may be of assistance to those teams striving to create the next generations of non-volatile embedded memory technology. Non-volatile memory ; Ferroelectricity ; Development (topology) ; Computer science ; Materials science ; Engineering ; Computer hardware ; Electrical engineering ; Mathematics Ferroelectric and Piezoelectric Materials ; Manufacturing Process and Optimization ; Industrial Vision Systems and Defect Detection
Authors: Stanislav Naryzhny | O. K. Legina
Source: Biomeditsinskaya Khimiya (review, 2025-01-01)
Field: Chemistry — Spectroscopy

Selection of optimal protein sets as serological tumor marker signatures Currently, various potential tumor markers have been proposed for clinical practice. Although some of them are successfully used in diagnostics, and treatment, none of them fully meets the needs of oncology. Therefore, the search for new markers continues. In this context much attention is paid to multiomics technologies such as genomics, transcriptomics, and metabolomics. However, since tumor biomarkers are mainly proteins, proteomics plays a central role in the search of tumor markers. Blood is the most popular source of information about a patient's health and therefore the search is focused on plasma/serum proteins In order to increase the sensitivity and specificity of the analysis, a very promising approach is to assess the levels of certain sets of relevant proteins rather than individual proteins and this review is devoted to analysis of this problem. Context (archaeology) ; Proteomics ; Computational biology ; Genomics ; Serology ; Selection (genetic algorithm) ; Bioinformatics ; Metabolomics ; Biology ; Medicine ; Computer science ; Immunology ; Genetics ; Genome ; Gene ; Machine learning ; Antibody Advanced Proteomics Techniques and Applications ; Metabolomics and Mass Spectrometry Studies ; Machine Learning in Bioinformatics