jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Yueyang Jia | Qianqian Yang | Yue‐Wen Fang | Yue Lu | Maosong Xie | Jianyong Wei | Jianjun Tian | Linxing Zhang | Rui Yang
Source: Nature Communications (article, 2024-01-24)
Field: Materials Science — Materials Chemistry

Giant tunnelling electroresistance in atomic-scale ferroelectric tunnel junctions Ferroelectric tunnel junctions are promising towards high-reliability and low-power non-volatile memories and computing devices. Yet it is challenging to maintain a high tunnelling electroresistance when the ferroelectric layer is thinned down towards atomic scale because of the ferroelectric structural instability and large depolarization field. Here we report ferroelectric tunnel junctions based on samarium-substituted layered bismuth oxide, which can maintain tunnelling electroresistance of 7 × 10<sup>5</sup> with the samarium-substituted bismuth oxide film down to one nanometer, three orders of magnitude higher than previous reports with such thickness, owing to efficient barrier modulation by the large ferroelectric polarization. These ferroelectric tunnel junctions demonstrate up to 32 resistance states without any write-verify technique, high endurance (over 5 × 10<sup>9</sup>), high linearity of conductance modulation, and long retention time (10 years). Furthermore, tunnelling electroresistance over 10<sup>9</sup> is achieved in ferroelectric tunnel junctions with 4.6-nanometer samarium-substituted bismuth oxide layer, which is higher than commercial flash memories. The results show high potential towards multi-level and reliable non-volatile memories. Ferroelectricity ; Materials science ; Quantum tunnelling ; Bismuth ; Oxide ; Optoelectronics ; Nanotechnology ; Dielectric Ferroelectric and Piezoelectric Materials ; Ferroelectric and Negative Capacitance Devices ; Semiconductor materials and devices
Authors: Andrew Leduc | Luke Khoury | Joshua Cantlon | Saad Khan | Nikolai Slavov
Source: Nature Protocols (article, 2024-08-08)
Field: Chemistry — Spectroscopy

Massively parallel sample preparation for multiplexed single-cell proteomics using nPOP Isobaric labeling ; Computer science ; Proteomics ; Multiplexing ; Mass spectrometry ; Computer hardware ; Protocol (science) ; Scalability ; Sample preparation ; Chemistry ; Chromatography ; Tandem mass spectrometry ; Protein mass spectrometry Advanced Proteomics Techniques and Applications ; Mass Spectrometry Techniques and Applications ; Biosensors and Analytical Detection
Authors: Midhun Varma | Sharan Chandran | Vishnu Vijay Kumar | Indran Suyambulingam | Suchart Siengchin
Source: Polymer Composites (review, 2024-01-31)
Field: Materials Science — Polymers and Plastics

A comprehensive review on the machining and joining characteristics of natural fiber‐reinforced polymeric composites Abstract Natural fiber composites are gaining interest in many industries, particularly the automotive and aerospace industries. One of the critical secondary activities required to produce a near‐perfectly shaped product is machining. The majority of product components had to be assembled before they could be used. This article reviews the various conventional and non‐conventional machining processes and its influential parameters investigated by various researchers. Non‐traditional machining is now proving to be a better choice than traditional machining. Non‐traditional machining has several advantages, including the absence of thrust force, chatter or vibration, minimal tool wear, and lower frictional heat. Delamination is the major issue occurring in the conventional machining processes like drilling. Researchers are more focused on the non‐conventional machining processes like abrasive water jet machining. Joining of natural fiber reinforced composites is another aspect discussed in this article. Adhesive joining is the most preferable joining method in the natural composites. The joining technique is also influenced by the intricacy of the materials to be bonded. Microwave joining and induction joining processes are the new methods of natural composites joining. This review also covers the various joining processes in the natural reinforced composite materials. Materials science ; Composite material ; Machining ; Natural fiber ; Fiber ; Metallurgy Natural Fiber Reinforced Composites ; Tribology and Wear Analysis ; Additive Manufacturing and 3D Printing Technologies
Authors: Cong Wang | Jinshan Pan | Wanyu Lin | Jiangxin Dong | Wei Wang | Xiao-Ming Wu
Source: Proceedings of the AAAI Conference on Artificial Intelligence (article, 2024-03-24)
Field: Chemistry — Organic Chemistry

SelfPromer: Self-Prompt Dehazing Transformers with Depth-Consistency This work presents an effective depth-consistency Self-Prompt Transformer, terms as SelfPromer, for image dehazing. It is motivated by an observation that the estimated depths of an image with haze residuals and its clear counterpart vary. Enforcing the depth consistency of dehazed images with clear ones, therefore, is essential for dehazing. For this purpose, we develop a prompt based on the features of depth differences between the hazy input images and corresponding clear counterparts that can guide dehazing models for better restoration. Specifically, we first apply deep features extracted from the input images to the depth difference features for generating the prompt that contains the haze residual information in the input. Then we propose a prompt embedding module that is designed to perceive the haze residuals, by linearly adding the prompt to the deep features. Further, we develop an effective prompt attention module to pay more attention to haze residuals for better removal. By incorporating the prompt, prompt embedding, and prompt attention into an encoder-decoder network based on VQGAN, we can achieve better perception quality. As the depths of clear images are not available at inference, and the dehazed images with one-time feed-forward execution may still contain a portion of haze residuals, we propose a new continuous self-prompt inference that can iteratively correct the dehazing model towards better haze-free image generation. Extensive experiments show that our SelfPromer performs favorably against the state-of-the-art approaches on both synthetic and real-world datasets in terms of perception metrics including NIQE, PI, and PIQE. The source codes will be made available at https://github.com/supersupercong/SelfPromer. Transformer ; Consistency (knowledge bases) ; Computer science ; Geology ; Environmental science ; Artificial intelligence ; Electrical engineering ; Engineering ; Voltage Polydiacetylene-based materials and applications ; Advanced Sensor and Energy Harvesting Materials ; Fire Detection and Safety Systems
Authors: Jurjen A. Regenspurg | Wendy A. Jonkers | Moritz A. Junker | Iske Achterhuis | Esra te Brinke | Wiebe M. de Vos
Source: Desalination (article, 2024-05-01)
Field: Materials Science — Surfaces, Coatings and Films

Polyelectrolyte multilayer membranes: An experimental review Within just two decades, polyelectrolyte multilayer (PEM) membranes have moved from invention to their world wide application. One key advantage of these membranes is their versatility, allowing easy optimization through various tuning parameters. But it is exactly this versatility that has made it difficult to fairly compare PEM membranes. Previously, only Krasemann and Tieke (2000) have compared a large set polyelectrolyte pairs for their membrane performance, concluding that the polyelectrolyte charge density was a key tuning parameter. However, in these early days of PEM membrane research, characterization was rather limited. In this work, we have performed a thorough experimental review, studying 9 common polyelectrolyte pairs for their layer properties on model surfaces and their separation properties as pressure driven membranes. All systems were prepared under identical conditions to allow for a fair comparison, and membranes were characterized for their water permeability, molecular weight cut off, and ion retention. We find that the porous support is closed by a PEM when its thickness is in the order of the membrane support pore size, which was expected but not demonstrated before. Of all the PEM parameters, the degree of swelling stands out as a parameter that plays a key role and can be easily experimentally determined. Interestingly, we find that swelling increases with polyelectrolyte charge density, which is opposite to what Krasemann and Tieke proposed. We attribute this to the higher hydrophilicity of polyelectrolytes with a higher charge density. In turn, we find correlations between swelling and the water permeability as well as size exclusion, dielectric exclusion and Donnan exclusion. Still, the connection between polyelectrolyte properties and membrane properties is more complex and cannot be solely understood by swelling. Further understanding of this complexity will provide the tools to develop even better polyelectrolyte multilayer membranes. Polyelectrolyte ; Membrane ; Materials science ; Chemical engineering ; Nanotechnology ; Chemistry ; Polymer science ; Engineering ; Composite material ; Polymer Polymer Surface Interaction Studies ; Molecular Junctions and Nanostructures ; Dendrimers and Hyperbranched Polymers
Authors: Jacob M. Wozniak | Weichao Li | Paolo Governa | Liyun Chen | Appaso Mahadev Jadhav | Ashok Dongre | Stefano Forli | Christopher G. Parker
Source: Nature Chemical Biology (article, 2024-01-02)
Field: Chemistry — Organic Chemistry

Enhanced mapping of small-molecule binding sites in cells Small molecule ; Proteome ; Binding site ; Photoaffinity labeling ; Computational biology ; Chemistry ; Biology ; Biochemistry Click Chemistry and Applications ; Chemical Synthesis and Analysis ; Receptor Mechanisms and Signaling
Authors: Maria Leonor Matias | Cláudia Pereira | Henrique Almeida | Santanu Jana | Shrabani Panigrahi | Uğur Deneb Menda | Daniela Nunes | Elvira Fortunato | Rodrigo Martins | Suman Nandy
Source: Materials Today Advances (article, 2024-06-27)
Field: Materials Science — Materials Chemistry

3D printed MXene architectures for a plethora of smart applications This review explores the integration of titanium carbide (Ti3C2Tx) MXene materials with three-dimensional (3D) printing techniques for advanced functional applications. Ti3C2Tx MXenes exhibit remarkable intrinsic properties like high surface area, metallic conductivity, and flexible surface functionalities. These materials can be associated to 3D printing techniques that offer solutions to conventional techniques’ limitations, enabling the creation of high-performance, free-standing, and multiscale devices with precise control over architecture. Additionally, 3D printing techniques are cost-effective, energy-saving, and sustainable, reducing material waste and carbon footprint. This review begins by presenting an overview of two-dimensional (2D) materials and their distinct characteristics when comparted to the MXenes family, followed by discussions on synthesis routes for 3D printable MXene inks and fabrication methods for complex MXene-based structures. Various applications of 3D-printed MXene architectures are explored, particularly in energy storage devices like supercapacitors and batteries, leveraging MXenes exceptional electrical conductivity and high surface area to enhance energy storage capabilities. Moreover, the potential of 3D-printed MXene architectures in smart devices, incorporating technologies such as artificial intelligence and connectivity features, is highlighted, particularly in smart sensors, biosensors, electromagnetic shielding, and environmental remediation. Computer science ; Computer architecture ; 3d printed ; Nanotechnology ; Embedded system ; Engineering ; Materials science ; Manufacturing engineering MXene and MAX Phase Materials ; Advanced Memory and Neural Computing ; Advanced Sensor and Energy Harvesting Materials
Authors: Philipp Erdmann | Manuel Schmitt | Lukas M. Sigmund | Felix Krämer | Frank Breher | Lutz Greb
Source: Angewandte Chemie International Edition (article, 2024-03-13)
Field: Chemistry — Inorganic Chemistry

How to Deal with Charge in the Ranking of Lewis Acidity: Critical Evaluation of an Extensive Set of Cationic Lewis Acids The quantification of Lewis acidity is of fundamental and applied importance in chemistry. However, if neutral and charged Lewis acids are compared, a coherent ranking has been elusive, and severe uncertainties were accepted. With this study, we present a systematic computational analysis of Lewis base affinities of 784 mono-, di- and tricationic Lewis acids and their comparison with 149 representative neutral Lewis acids. Evaluating vacuum fluoride ion affinities (FIA) reveals a charge-caused clustering that prohibits any meaningful ranking. Instead, solvation-corrected FIA<sub>solv</sub> is identified as a metric that overcomes charge sensitivity in a balanced manner, allowing for a coherent evaluation of Lewis acidity across varying charge states. Analyzing the impact of molecular volume on solvation-induced FIA damping provides rationales for fundamental trends and guidelines for the choice or design of neutral and cationic Lewis acids in the condensed phase. Exploring alternative scales, explicit counteranion effects, and selected experimental case studies reaffirms the advantages of solvation-corrected FIA<sub>solv</sub> as the most versatile and practical approach for the quantitative ranking of general (thermodynamic) Lewis acidity. Lewis acids and bases ; Solvation ; Affinities ; Chemistry ; Cationic polymerization ; Computational chemistry ; Implicit solvation ; Ranking (information retrieval) ; Electron affinity (data page) ; Chemical physics ; Ion ; Organic chemistry ; Stereochemistry ; Machine learning ; Molecule ; Computer science ; Catalysis Inorganic Fluorides and Related Compounds ; Crystallography and molecular interactions ; Organoboron and organosilicon chemistry
Authors: Pamela Aracena Santos | Xhulja Biraku | Erik A. Nielsen | Ahmet Caglar Ozketen | Ayse Andac Ozketen | Erdoğan E. Hakkı
Source: Journal of the Science of Food and Agriculture (review, 2024-09-25)
Field: Materials Science — Materials Chemistry

Agricultural nanotechnology for a safe and sustainable future: current status, challenges, and beyond Nanotechnology, which involves manipulating matter at the atomic and molecular scales to produce structures and devices ranging from 1 to 100 nm, is increasingly being applied in agriculture. Nanoscale materials possess distinct optical, electrochemical, and mechanical properties that enable the smart, targeted delivery of pesticides, fertilizers, and genetic materials to plants, as well as rapid sensing and on-site monitoring of plant health, soil fertility, and water quality in a digital format. This review explores the application of nanotechnology in agriculture, examining the challenges and benefits related to all aspects of crop production, with a particular focus on regulatory issues. Key findings indicate that nanotechnology can improve crop production and reduce the environmental footprint of agriculture through precise input management. However, several critical issues need to be addressed, including the limited knowledge of the long-term environmental impacts associated with agricultural nanotechnology and the ambiguity of current regulations. This underscores the need for further research to elucidate its impact on soil, water, and environmental and human health, to inform evidence-based regulations. © 2024 The Author(s). Journal of the Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. Agriculture ; Sustainable agriculture ; Nanotechnology ; Agricultural productivity ; Societal impact of nanotechnology ; Applications of nanotechnology ; Business ; Environmental planning ; Environmental science ; Environmental resource management ; Materials science ; Ecology ; Biology Nanoparticles: synthesis and applications ; Plant Micronutrient Interactions and Effects ; Banana Cultivation and Research
Authors: Haiyang Pan | Ajay Singh | Chusheng Zhang | Xueqi Hu | Jiayu Shi | Liheng An | Naizhou Wang | Ruihuan Duan | Zheng Liu | S. Parkin | Pritam Deb | Weibo Gao
Source: InfoMat (article, 2024-03-07)
Field: Materials Science — Materials Chemistry

Room‐temperature tunable tunneling magnetoresistance in <scp>Fe<sub>3</sub>GaTe<sub>2</sub></scp>/<scp>WSe<sub>2</sub></scp>/<scp>Fe<sub>3</sub>GaTe<sub>2</sub></scp> van der Waals heterostructures Abstract The exceptional properties of two‐dimensional (2D) magnet materials present a novel approach to fabricate functional magnetic tunnel junctions (MTJ) by constructing full van der Waals (vdW) heterostructures with atomically sharp and clean interfaces. The exploration of vdW MTJ devices with high working temperature and adjustable functionalities holds great potential for advancing the application of 2D materials in magnetic sensing and data storage. Here, we report the observation of highly tunable room‐temperature tunneling magnetoresistance through electronic means in a full vdW Fe 3 GaTe 2 /WSe 2 /Fe 3 GaTe 2 MTJ. The spin valve effect of the MTJ can be detected even with the current below 1 nA, both at low and room temperatures, yielding a tunneling magnetoresistance (TMR) of 340% at 2 K and 50% at 300 K, respectively. Importantly, the magnitude and sign of TMR can be modulated by a DC bias current, even at room temperature, a capability that was previously unrealized in full vdW MTJs. This tunable TMR arises from the contribution of energy‐dependent localized spin states in the metallic ferromagnet Fe 3 GaTe 2 during tunnel transport when a finite electrical bias is applied. Our work offers a new perspective for designing and exploring room‐temperature tunable spintronic devices based on vdW magnet heterostructures. Spintronics ; Magnetoresistance ; Quantum tunnelling ; Heterojunction ; Tunnel magnetoresistance ; Materials science ; Condensed matter physics ; Ferromagnetism ; van der Waals force ; Magnet ; Optoelectronics ; Magnetic field ; Electrical engineering ; Chemistry ; Physics 2D Materials and Applications ; Graphene research and applications ; Quantum and electron transport phenomena
Authors: Renquan Guan | Hao Xu | Zheng Lou | Zhao Zhao | Lili Wang
Source: Advanced Science (review, 2024-07-05)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Design and Development of Metasurface Materials for Enhancing Photodetector Properties Recently, metasurface-based photodetectors (metaphotodetectors) have been developed and applied in various fields. Metasurfaces are artificial materials with unique properties that have emerged over the past decade, and photodetectors are powerful tools used to quantify incident electromagnetic wave information by measuring changes in the conductivity of irradiated materials. Through an efficient microstructural design, metasurfaces can effectively regulate numerous characteristics of electromagnetic waves and have demonstrated unique advantages in various fields, including holographic projection, stealth, biological image enhancement, biological sensing, and energy absorption applications. Photodetectors play a crucial role in military and civilian applications; therefore, efficient photodetectors are essential for optical communications, imaging technology, and spectral analysis. Metaphotodetectors have considerably improved sensitivity and noise-equivalent power and miniaturization over conventional photodetectors. This review summarizes the advantages of metaphotodetectors based on five aspects. Furthermore, the applications of metaphotodetectors in various fields including military and civil applications, are systematically discussed. It highlights the potential future applications and developmental trends of metasurfaces in metaphotodetectors, provides systematic guidance for their development, and establishes metasurfaces as a promising technology. Photodetector ; Miniaturization ; Detector ; Materials science ; Holography ; Computer science ; Electromagnetic radiation ; Absorption (acoustics) ; Optoelectronics ; Sensitivity (control systems) ; Nanotechnology ; Optics ; Electronic engineering ; Physics ; Telecommunications ; Engineering Metamaterials and Metasurfaces Applications ; Energy Harvesting in Wireless Networks ; Advanced Antenna and Metasurface Technologies
Authors: Amir Khojastehnezhad | Ali Samie | Anna Bisio | Hani M. El‐Kaderi | Mohamed Siaj
Source: ACS Applied Materials & Interfaces (review, 2024-11-21)
Field: Materials Science — Materials Chemistry

Impact of Postsynthetic Modification on the Covalent Organic Framework (COF) Structures Covalent organic frameworks (COFs) have emerged as a versatile class of materials owing to their well-defined crystalline structures and inherent porosity. In the realm of COFs, their appeal lies in their customizable nature, which can be further enhanced by incorporating diverse functionalities. Postsynthetic modifications (PSMs) emerge as a potent strategy, facilitating the introduction of desired functionalities postsynthesis. A significant challenge in PSM pertains to preserving the crystallinity and porosity of the COFs. In this study, we aim to investigate the intricate interplay between PSM strategies and the resulting crystalline and porous structures of the COFs. The investigation delves into the diverse methodologies employed in PSMs, to elucidate their distinct influences on the crystallinity and porosity of the COFs. Through a comprehensive analysis of recent advancements and case studies, the study highlights the intricate relationships among PSM parameters, including reaction conditions, precursor selection, and functional groups, and their impact on the structural features of COFs. By understanding how PSM strategies can fine-tune the crystalline and porous characteristics of COFs, researchers can harness this knowledge to design COFs with tailored properties for specific applications, contributing to the advancement of functional materials in diverse fields. This work not only deepens our understanding of COFs but also provides valuable insights into the broader realm of PSM strategies for other solid materials. Materials science ; Covalent bond ; Covalent organic framework ; Nanotechnology ; Polymer science ; Organic chemistry ; Composite material ; Porosity ; Chemistry Covalent Organic Framework Applications ; Metal-Organic Frameworks: Synthesis and Applications ; Luminescence and Fluorescent Materials