jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Simon Wintersteller | Olesya Yarema | Dhananjeya Kumaar | Florian M. Schenk | Оlga V. Safonova | Paula M. Abdala | Vanessa Wood | Maksym Yarema
Source: Nature Communications (article, 2024-02-03)
Field: Materials Science — Materials Chemistry

Unravelling the amorphous structure and crystallization mechanism of GeTe phase change memory materials The reversible phase transitions in phase-change memory devices can switch on the order of nanoseconds, suggesting a close structural resemblance between the amorphous and crystalline phases. Despite this, the link between crystalline and amorphous tellurides is not fully understood nor quantified. Here we use in-situ high-temperature x-ray absorption spectroscopy (XAS) and theoretical calculations to quantify the amorphous structure of bulk and nanoscale GeTe. Based on XAS experiments, we develop a theoretical model of the amorphous GeTe structure, consisting of a disordered fcc-type Te sublattice and randomly arranged chains of Ge atoms in a tetrahedral coordination. Strikingly, our intuitive and scalable model provides an accurate description of the structural dynamics in phase-change memory materials, observed experimentally. Specifically, we present a detailed crystallization mechanism through the formation of an intermediate, partially stable 'ideal glass' state and demonstrate differences between bulk and nanoscale GeTe leading to size-dependent crystallization temperature. Amorphous solid ; Crystallization ; Materials science ; X-ray absorption spectroscopy ; Chemical physics ; Phase (matter) ; Polyamorphism ; Phase transition ; Nanoscopic scale ; Crystallography ; Absorption spectroscopy ; Nanotechnology ; Condensed matter physics ; Chemistry ; Thermodynamics ; Physics ; Optics Phase-change materials and chalcogenides ; Chalcogenide Semiconductor Thin Films ; Transition Metal Oxide Nanomaterials
Authors: Shun Wen | Xinyuan Xue | Shuai Wang | Yibo Ni | Liqun Sun | Yuanmu Yang
Source: Light Science & Applications (article, 2024-04-10)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Metasurface array for single-shot spectroscopic ellipsometry Spectroscopic ellipsometry is a potent method that is widely adopted for the measurement of thin film thickness and refractive index. Most conventional ellipsometers utilize mechanically rotating polarizers and grating-based spectrometers for spectropolarimetric detection. Here, we demonstrated a compact metasurface array-based spectroscopic ellipsometry system that allows single-shot spectropolarimetric detection and accurate determination of thin film properties without any mechanical movement. The silicon-based metasurface array with a highly anisotropic and diverse spectral response is combined with iterative optimization to reconstruct the full Stokes polarization spectrum of the light reflected by the thin film with high fidelity. Subsequently, the film thickness and refractive index can be determined by fitting the measurement results to a proper material model with high accuracy. Our approach opens up a new pathway towards a compact and robust spectroscopic ellipsometry system for the high throughput measurement of thin film properties. Ellipsometry ; Polarizer ; Materials science ; Optics ; Refractive index ; Stokes parameters ; Thin film ; Spectrometer ; Grating ; Anisotropy ; Polarimetry ; Polarization (electrochemistry) ; Optoelectronics ; Physics ; Birefringence ; Chemistry ; Nanotechnology Metamaterials and Metasurfaces Applications ; Plasmonic and Surface Plasmon Research ; Optical Polarization and Ellipsometry
Authors: Taufiq Nawaz | Liping Gu | Shah Fahad | Shah Saud | Bruce Bleakley | Ruanbao Zhou
Source: Molecules (article, 2024-05-28)
Field: Materials Science — Materials Chemistry

Exploring Sustainable Agriculture with Nitrogen-Fixing Cyanobacteria and Nanotechnology The symbiotic relationship between nitrogen-fixing cyanobacteria and plants offers a promising avenue for sustainable agricultural practices and environmental remediation. This review paper explores the molecular interactions between nitrogen-fixing cyanobacteria and nanoparticles, shedding light on their potential synergies in agricultural nanotechnology. Delving into the evolutionary history and specialized adaptations of cyanobacteria, this paper highlights their pivotal role in fixing atmospheric nitrogen, which is crucial for ecosystem productivity. The review discusses the unique characteristics of metal nanoparticles and their emerging applications in agriculture, including improved nutrient delivery, stress tolerance, and disease resistance. It delves into the complex mechanisms of nanoparticle entry into plant cells, intracellular transport, and localization, uncovering the impact on root-shoot translocation and systemic distribution. Furthermore, the paper elucidates cellular responses to nanoparticle exposure, emphasizing oxidative stress, signaling pathways, and enhanced nutrient uptake. The potential of metal nanoparticles as carriers of essential nutrients and their implications for nutrient-use efficiency and crop yield are also explored. Insights into the modulation of plant stress responses, disease resistance, and phytoremediation strategies demonstrate the multifaceted benefits of nanoparticles in agriculture. Current trends, prospects, and challenges in agricultural nanotechnology are discussed, underscoring the need for responsible and safe nanoparticle utilization. By harnessing the power of nitrogen-fixing cyanobacteria and leveraging the unique attributes of nanoparticles, this review paves the way for innovative, sustainable, and efficient agricultural practices. Cyanobacteria ; Agriculture ; Sustainable agriculture ; Nanotechnology ; Environmental science ; Biology ; Ecology ; Materials science ; Bacteria Nanoparticles: synthesis and applications ; Geochemistry and Elemental Analysis ; Biocrusts and Microbial Ecology
Authors: Dakshith Ruvin Wijesinghe | Md Abu Zobair | Mina Esmaeelpour
Source: Sensors (review, 2024-10-12)
Field: Chemistry — Spectroscopy

A Review on Photoacoustic Spectroscopy Techniques for Gas Sensing The rapid growth of industry and the global drive for modernization have led to an increase in gas emissions, which present significant environmental and health risks. As a result, there is a growing need for precise and sensitive gas-monitoring technologies. This review delves into the progress made regarding photoacoustic gas sensors, with a specific focus on the vital components of acoustic cells and acoustic detectors. This review highlights photoacoustic spectroscopy (PAS) as an optical detection technique, lauding its high sensitivity, selectivity, and capability to detect a wide range of gaseous species. The principles of photoacoustic gas sensors are outlined, emphasizing the use of modulated light absorption to generate heat and subsequently detect gas pressure as acoustic pressure. Additionally, this review provides an overview of recent advancements in photoacoustic gas sensor components while also discussing the applications, challenges, and limitations of these sensors. It also includes a comparative analysis of photoacoustic gas sensors and other types of gas sensors, along with potential future research directions and opportunities. The main aim of this review is to advance the understanding and development of photoacoustic gas detection technology. Photoacoustic spectroscopy ; Photoacoustic imaging in biomedicine ; Nanotechnology ; Gas analysis ; Detector ; Absorption (acoustics) ; Materials science ; Environmental science ; Computer science ; Process engineering ; Engineering ; Optics ; Telecommunications ; Physics Spectroscopy and Laser Applications ; Advanced Chemical Sensor Technologies ; Atmospheric Ozone and Climate
Authors: Ali Raza | Hajar Salehi | Shanza Bashir | Javaria Tabassum | Monica Jamla | Sidra Charagh | Rutwik Barmukh | Rakeeb Ahmad Mir | Basharat Bhat | Muhammad Arshad Javed | Dong‐Xing Guan | Reyazul Rouf Mir | Kadambot H. M. Siddique | Rajeev K. Varshney
Source: Plant Cell Reports (article, 2024-02-27)
Field: Chemistry — Analytical Chemistry

Transcriptomics, proteomics, and metabolomics interventions prompt crop improvement against metal(loid) toxicity The escalating challenges posed by metal(loid) toxicity in agricultural ecosystems, exacerbated by rapid climate change and anthropogenic pressures, demand urgent attention. Soil contamination is a critical issue because it significantly impacts crop productivity. The widespread threat of metal(loid) toxicity can jeopardize global food security due to contaminated food supplies and pose environmental risks, contributing to soil and water pollution and thus impacting the whole ecosystem. In this context, plants have evolved complex mechanisms to combat metal(loid) stress. Amid the array of innovative approaches, omics, notably transcriptomics, proteomics, and metabolomics, have emerged as transformative tools, shedding light on the genes, proteins, and key metabolites involved in metal(loid) stress responses and tolerance mechanisms. These identified candidates hold promise for developing high-yielding crops with desirable agronomic traits. Computational biology tools like bioinformatics, biological databases, and analytical pipelines support these omics approaches by harnessing diverse information and facilitating the mapping of genotype-to-phenotype relationships under stress conditions. This review explores: (1) the multifaceted strategies that plants use to adapt to metal(loid) toxicity in their environment; (2) the latest findings in metal(loid)-mediated transcriptomics, proteomics, and metabolomics studies across various plant species; (3) the integration of omics data with artificial intelligence and high-throughput phenotyping; (4) the latest bioinformatics databases, tools and pipelines for single and/or multi-omics data integration; (5) the latest insights into stress adaptations and tolerance mechanisms for future outlooks; and (6) the capacity of omics advances for creating sustainable and resilient crop plants that can thrive in metal(loid)-contaminated environments. Biology ; Metabolomics ; Proteomics ; Transcriptome ; Toxicity ; Crop ; Biotechnology ; Computational biology ; Bioinformatics ; Biochemistry ; Ecology ; Gene expression ; Gene ; Internal medicine Heavy Metals in Plants ; Heavy metals in environment ; Plant Micronutrient Interactions and Effects
Authors: Jihoon Kang | Geun Woo Baek | Jun Yeob Lee | Jeonghun Kwak | Jae‐Hyeung Park
Source: Journal of Information Display (article, 2024-05-09)
Field: Materials Science — Materials Chemistry

Advances in display technology: augmented reality, virtual reality, quantum dot-based light-emitting diodes, and organic light-emitting diodes Virtual reality, augmented reality, quantum dot light-emitting diodes, and organic light-emitting diodes have progressed over the last two years. Key achievements in these displays are discussed in terms of device performance. Optoelectronics ; OLED ; Quantum dot ; Diode ; Materials science ; Virtual reality ; Augmented reality ; Computer science ; Nanotechnology ; Human–computer interaction Quantum Dots Synthesis And Properties ; Image and Video Quality Assessment ; Advanced Optical Imaging Technologies
Authors: Semin Kim | Hyeonyeol Jeon | Jun Mo Koo | Dongyeop X. Oh | Jeyoung Park
Source: Advanced Science (article, 2024-02-15)
Field: Materials Science — Polymers and Plastics

Practical Applications of Self‐Healing Polymers Beyond Mechanical and Electrical Recovery Self-healing polymeric materials, which can repair physical damage, offer promising prospects for protective applications across various industries. Although prolonged durability and resource conservation are key advantages, focusing solely on mechanical recovery may limit the market potential of these materials. The unique physical properties of self-healing polymers, such as interfacial reduction, seamless connection lines, temperature/pressure responses, and phase transitions, enable a multitude of innovative applications. In this perspective, the diverse applications of self-healing polymers beyond their traditional mechanical strength are emphasized and their potential in various sectors such as food packaging, damage-reporting, radiation shielding, acoustic conservation, biomedical monitoring, and tissue regeneration is explored. With regards to the commercialization challenges, including scalability, robustness, and performance degradation under extreme conditions, strategies to overcome these limitations and promote successful industrialization are discussed. Furthermore, the potential impacts of self-healing materials on future research directions, encompassing environmental sustainability, advanced computational techniques, integration with emerging technologies, and tailoring materials for specific applications are examined. This perspective aims to inspire interdisciplinary approaches and foster the adoption of self-healing materials in various real-life settings, ultimately contributing to the development of next-generation materials. Commercialization ; Sustainability ; Self-healing ; Nanotechnology ; Risk analysis (engineering) ; Computer science ; Materials science ; Durability ; Business ; Medicine Polymer composites and self-healing ; Electrospun Nanofibers in Biomedical Applications ; Advanced Sensor and Energy Harvesting Materials
Authors: Wentao Jiang | Congcong Liang | Yue‐Biao Zhang
Source: Advanced Functional Materials (article, 2024-02-10)
Field: Chemistry — Inorganic Chemistry

Multivariate Metal–Organic Frameworks for Programming Functions Abstract Multivariate metal–organic frameworks (MTV‐MOFs) provide a handle over programming MOF's physicochemical properties for use in functional applications. In this review, the state‐of‐art design features of MTV‐MOFs are summarized, including multivariate functionalities, mixed metals, and post‐synthetic modification, and highlight their resulting fine‐tuned performance in practical applications, such as gas storage, gas separation, water harvesting, luminescence sensing, heterogeneous catalysis, and drug delivery. Furthermore, a vision is provided for future research avenues, in which MTV‐MOFs enable the incorporation of a variety of functionalities, metals, linkers, secondary building units (SBUs), and pore metrics along a specific crystallographic direction with respect to the ordered backbone. Future directions focus on mechanistic and kinetics investigations into the formation of MTV‐MOFs in addition to high‐throughput screening with the aim of automation and artificial intelligence. SBus ; Metal-organic framework ; Materials science ; Multivariate statistics ; Nanotechnology ; Throughput ; Drug delivery ; Computer science ; Adsorption ; Organic chemistry ; Machine learning ; Chemistry Metal-Organic Frameworks: Synthesis and Applications ; Covalent Organic Framework Applications ; Advanced Nanomaterials in Catalysis
Authors: Md Hosne Mobarak | Abu Yousouf Siddiky | Md. Aminul Islam | Amran Hossain | Md Israfil Hossain Rimon | Md. Shah Oliullah | Julhas Khan | Mohammad Mustafizur Rahman | Nayem Hossain | Mohammad Asaduzzaman Chowdhury
Source: Desalination (review, 2024-01-04)
Field: Materials Science — Biomaterials

Progress and prospects of electrospun nanofibrous membranes for water filtration: A comprehensive review Electrospinning ; Membrane ; Filtration (mathematics) ; Nanofiber ; Water treatment ; Polymer science ; Chemical engineering ; Materials science ; Chemistry ; Pulp and paper industry ; Nanotechnology ; Engineering ; Composite material ; Environmental engineering ; Polymer ; Mathematics Electrospun Nanofibers in Biomedical Applications ; Membrane Separation Technologies ; Advanced Sensor and Energy Harvesting Materials
Authors: Yixin Chen | Fengzhou Fang | Nan Zhang
Source: npj 2D Materials and Applications (article, 2024-03-06)
Field: Materials Science — Materials Chemistry

Advance in additive manufacturing of 2D materials at the atomic and close-to-atomic scale Abstract Atomic and close-to-atomic scale manufacturing (ACSM) has emerged as promising technologies in the manufacturing paradigm. Among various materials, 2D materials have garnered significant attention for ACSM due to their atomic-scale characteristics and physical properties. While chemical vapor deposition (CVD) can be employed to produce high-quality 2D materials, achieving patterning often relies on photolithography techniques, which limit scalability and introduce impurities. To address these challenges, this article serves as a review by focusing on exploring atomic-scale additive manufacturing methods for 2D materials. Several potential techniques are reviewed, including site-selective CVD, area-selective atomic layer deposition, electrodeposition, laser-assisted synthesis, print methods, and atomic layer-aligned stacking. The applications of atomic-scale additive manufacturing in various fields, such as electronics, biosensing, and nanoelectromechanical systems, are discussed. Finally, the future prospects of atomic-scale additive manufacturing for 2D materials based on existing research are delved into. Atomic units ; Scale (ratio) ; Materials science ; Nanotechnology ; Physics ; Quantum mechanics Graphene research and applications ; MXene and MAX Phase Materials ; 2D Materials and Applications
Authors: Rutuja S. Rajenimbalkar | Vidya J. Deshmukh | Ketaki K. Patankar | Sandeep B. Somvanshi
Source: Scientific Reports (article, 2024-11-28)
Field: Materials Science — Materials Chemistry

Effect of multivalent ion doping on magnetic, electrical, and dielectric properties of nickel ferrite nanoparticles The nanoscale spinel structured ferrites co-doped with multi-valence ions are of great interest and proving to be promising for numerous applications. In light of this, herein we report tetravalent titanium ions (Ti<sup>4+</sup>) and divalent zinc ions (Zn<sup>2+</sup>) co-doped nickel ferrites with generic formula of NiFe<sub>2 - 2x</sub>Ti<sub>x</sub>Zn<sub>x</sub>O<sub>4</sub> (x = 0.00 ≤ x ≤ 0.20 in step of 0.05). The sol gel self combustion method in assistance with citric acid as fuel was employed to prepare the samples. The X-ray diffraction (XRD) analysis with Rietveld refinement was performed to confirm the single-phase cubic spinel structure. The sphere type grain morphology of the samples was revealed by SEM images. The compositional studies carried out by EDAX showed desired formation of the composition with absence of impurities in the samples. The characteristics bands belonging to the spinel ferrites were appeared in IR spectra confirming the successive sample forming. The different surface parameters including surface area and pore volume was estimated using Brunauer-Emmett-Teller (BET) analysis. The low coercive nature with soft magnetism was observed with the co-doping as revealed by M-H plots. The electric and dielectric parameters showed decrementing behaviour with increment in Ti<sup>4+</sup>-Zn<sup>2+</sup> co-doping. This study outcome signifies that the Ti<sup>4+</sup>-Zn<sup>2+</sup> co-doping in nickel ferrites could be a prominent for many nanoelectronics applications. Ferrite (magnet) ; Doping ; Nanoparticle ; Dielectric ; Materials science ; Nickel ; Magnetic nanoparticles ; Ion ; Nanotechnology ; Optoelectronics ; Chemistry ; Metallurgy ; Composite material Magnetic Properties and Synthesis of Ferrites ; Electromagnetic wave absorption materials ; Advancements in Battery Materials
Authors: Guanyu Chen | Ruixuan Zhang | Mingyue Yuan | Shuyan Xue | Yihao Liu | Bangxin Li | Kaicheng Luo | Yuxiang Lai | Jincang Zhang | Hualiang Lv | Renchao Che
Source: Advanced Materials (article, 2024-03-12)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Visualizing Nanoscale Interlayer Magnetic Interactions and Unconventional Low‐Frequency Behaviors in Ferromagnetic Multishelled Structures Precise manipulation of van der Waals forces within 2D atomic layers allows for exact control over electron-phonon coupling, leading to the exceptional quantum properties. However, applying this technique to diverse structures such as 3D materials is challenging. Therefore, investigating new hierarchical structures and different interlayer forces is crucial for overcoming these limitations and discovering novel physical properties. In this work, a multishelled ferromagnetic material with controllable shell numbers is developed. By strategically regulating the magnetic interactions between these shells, the magnetic properties of each shell are fine-tuned. This approach reveals distinctive magnetic characteristics including regulated magnetic domain configurations and enhanced effective fields. The nanoscale magnetic interactions between the shells are observed and analyzed, which shed light on the modified magnetic properties of each shell, enhancing the understanding and control of ferromagnetic materials. The distinctive magnetic interaction significantly boosts electromagnetic absorption at low-frequency frequencies used by fifth-generation wireless devices, outperforming ferromagnetic materials without multilayer structures by several folds. The application of magnetic interactions in materials science reveals thrilling prospects for technological and electronic innovation. Materials science ; Nanoscopic scale ; Ferromagnetism ; Nanotechnology ; Condensed matter physics ; Physics Multiferroics and related materials ; Transition Metal Oxide Nanomaterials ; Graphene research and applications
Authors: Junyan Zhang | Yuanyuan Li | Haohong Song | Lihua Zhang | Yiqing Wu | Yang He | Lu‐Fang Ma | Jiyun Hong | Akhil Tayal | Nebojša Marinković | De‐en Jiang | Zhenglong Li | Zili Wu | Felipe Polo‐Garzon
Source: Nature Communications (article, 2024-10-03)
Field: Materials Science — Materials Chemistry

Tuning metal-support interactions in nickel–zeolite catalysts leads to enhanced stability during dry reforming of methane Ni-based catalysts are highly reactive for dry reforming of methane (DRM) but they are prone to rapid deactivation due to sintering and/or coking. In this study, we present a straightforward approach for anchoring dispersed Ni sites with strengthened metal-support interactions, which leads to Ni active sites embedded in dealuminated Beta zeolite with superior stability and rates for DRM. The process involves solid-state grinding of dealuminated Beta zeolites and nickel nitrate, followed by calcination under finely controlled gas flow conditions. By combining in situ X-ray absorption spectroscopy and ab initio simulations, it is elucidated that the efficient removal of byproducts during catalyst synthesis is conducted to strengthen Ni-Si interactions that suppress coking and sintering after 100 h of time-on-stream. Transient isotopic kinetic experiments shed light on the differences in intrinsic turnover frequency of Ni species and explain performance trends. This work constructs a fundamental understanding regarding the implication of facile synthesis protocols on metal-support interaction in zeolite-supported Ni sites, and it lays the needed foundations on how these interactions can be tuned for outstanding DRM performance. Catalysis ; Nickel ; Sintering ; Zeolite ; Methane ; Calcination ; Carbon dioxide reforming ; Materials science ; Chemical engineering ; Metal ; Inorganic chemistry ; Syngas ; Chemistry ; Metallurgy ; Organic chemistry Catalytic Processes in Materials Science ; Catalysts for Methane Reforming ; Catalysis and Oxidation Reactions