jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Aneta Tarczewska | Klaudia Bielak | Anna Zoglowek | Katarzyna Sołtys | Piotr Dobryszycki | Andrzej Ożyhar | Mirosława Różycka
Source: Biomolecules (review, 2022-09-09)
Field: Materials Science — Biomaterials

The Role of Intrinsically Disordered Proteins in Liquid–Liquid Phase Separation during Calcium Carbonate Biomineralization Some animal organs contain mineralized tissues. These so-called hard tissues are mostly deposits of calcium salts, usually in the form of calcium phosphate or calcium carbonate. Examples of this include fish otoliths and mammalian otoconia, which are found in the inner ear, and they are an essential part of the sensory system that maintains body balance. The composition of ear stones is quite well known, but the role of individual components in the nucleation and growth of these biominerals is enigmatic. It is sure that intrinsically disordered proteins (IDPs) play an important role in this aspect. They have an impact on the shape and size of otoliths. It seems probable that IDPs, with their inherent ability to phase separate, also play a role in nucleation processes. This review discusses the major theories on the mechanisms of biomineral nucleation with a focus on the importance of protein-driven liquid-liquid phase separation (LLPS). It also presents the current understanding of the role of IDPs in the formation of calcium carbonate biominerals and predicts their potential ability to drive LLPS. Biomineralization ; Calcium carbonate ; Nucleation ; Amorphous calcium carbonate ; Calcium ; Chemistry ; Phase (matter) ; Biophysics ; Biology ; Astrobiology ; Organic chemistry Calcium Carbonate Crystallization and Inhibition ; Physiological and biochemical adaptations ; Marine Bivalve and Aquaculture Studies
Authors: Muhammad Shahzad Zafar | Ghulam Dastgeer | Abul Kalam | Abdullah G. Al‐Sehemi | Muhammad Imran | Yong Ho Kim | Heeyeop Chae
Source: Nanomaterials (article, 2022-04-11)
Field: Materials Science — Materials Chemistry

Precise and Prompt Analyte Detection via Ordered Orientation of Receptor in WSe2-Based Field Effect Transistor Field-effect transistors (FET) composed of transition metal dichalcogenide (TMDC) materials have gained huge importance as biosensors due to their added advantage of high sensitivity and moderate bandgap. However, the true potential of these biosensors highly depends upon the quality of TMDC material, as well as the orientation of receptors on their surfaces. The uncontrolled orientation of receptors and screening issues due to crossing the Debye screening length while functionalizing TMDC materials is a big challenge in this field. To address these issues, we introduce a combination of high-quality monolayer WSe<sub>2</sub> with our designed Pyrene-based receptor moiety for its ordered orientation onto the WSe<sub>2</sub> FET biosensor. A monolayer WSe<sub>2</sub> sheet is utilized to fabricate an ideal FET for biosensing applications, which is characterized via Raman spectroscopy, atomic force microscopy, and electrical prob station. Our construct can sensitively detect our target protein (streptavidin) with 1 pM limit of detection within a short span of 2 min, through a one-step functionalizing process. In addition to having this ultra-fast response and high sensitivity, our biosensor can be a reliable platform for point-of-care-based diagnosis. Biosensor ; Materials science ; Monolayer ; Nanotechnology ; Field-effect transistor ; Raman spectroscopy ; Transistor ; Analyte ; Optoelectronics ; Chemistry ; Optics ; Electrical engineering ; Physics 2D Materials and Applications ; Advanced biosensing and bioanalysis techniques ; MXene and MAX Phase Materials
Authors: Meng Li | Jianlu Wei | Song Yang | Feiyong Chen
Source: RSC Advances (review, 2022-01-01)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Gold nanocrystals: optical properties, fine-tuning of the shape, and biomedical applications Noble metal nanomaterials with special physical and chemical properties have attracted considerable attention in the past decades. In particular, Au nanocrystals (NCs), which possess high chemical inertness and unique surface plasmon resonance (SPR), have attracted extensive research interest. In this study, we review the properties and preparation of Au NCs with different morphologies as well as their important applications in biological detection. The preparation of Au NCs with different shapes by many methods such as seed-mediated growth method, seedless synthesis, polyol process, ultrasonic method, and hydrothermal treatment has already been introduced. In the seed-mediated growth method, the influence factors in determining the final shape of Au NCs are discussed. Au NCs, which show significant size-dependent color differences are proposed for preparing biological probes to detect biomacromolecules such as DNA and protein, while probe conjugate molecules serves as unique coupling agents with a target. Particularly, Au nanorods (NRs) have some unique advantages in the application of biological probes and photothermal cancer therapy compared to Au nanoparticles (NPs). Nanocrystal ; Nanotechnology ; Materials science ; Colloidal gold ; Nonlinear optical ; Nanoparticle ; Nonlinear system ; Physics Gold and Silver Nanoparticles Synthesis and Applications ; Nanocluster Synthesis and Applications ; Advanced Nanomaterials in Catalysis
Authors: O. N. Tchaikovskaya | Vlada Chaidonova | E. N. Bocharnikova | E. N. Tel’minov | N. G. Dmitrieva | Dmitry M. Ezhov
Source: Journal of Fluorescence (article, 2022-12-09)
Field: Chemistry — Physical and Theoretical Chemistry

Solvent effect on the Spectra of Methylene Green and Methylene Blue Chemistry ; Phosphorescence ; Methylene blue ; Methylene ; Photochemistry ; Fluorescence ; Acetonitrile ; Chloroform ; Solvent ; Ethanol ; Excited state ; Dimethyl sulfoxide ; Substituent ; Organic chemistry ; Catalysis Photochemistry and Electron Transfer Studies ; Luminescence and Fluorescent Materials ; Photochromic and Fluorescence Chemistry
Authors: Tim Würger | Linqian Wang | Darya Snihirova | Min Deng | Sviatlana V. Lamaka | David A. Winkler | Daniel Höche | Mikhail L. Zheludkevich | Robert H. Meißner | Christian Feiler
Source: Journal of Materials Chemistry A (article, 2022-01-01)
Field: Materials Science — Materials Chemistry

Data-driven selection of electrolyte additives for aqueous magnesium batteries Data-driven quantitative structure–property relationship models facilitate the selection of potent electrolyte additives for aqueous magnesium batteries in an active design of experiments approach. Electrolyte ; Magnesium ; Aqueous solution ; Selection (genetic algorithm) ; Materials science ; Environmental science ; Chemical engineering ; Chemistry ; Inorganic chemistry ; Computer science ; Metallurgy ; Engineering ; Organic chemistry ; Electrode ; Artificial intelligence Machine Learning in Materials Science ; Advancements in Battery Materials ; Advanced Battery Materials and Technologies
Authors: Wenbo Ye | Zhenqiang Ye | Ting Liang | Xiangliang Zeng | Zhibin Wen | Linlin Ren | Rong Sun | Xiaoliang Zeng
Source: ACS Applied Polymer Materials (article, 2022-06-06)
Field: Materials Science — Materials Chemistry

Stretchable Thermal Interface Materials by Tailoring the Chain Relaxation at the Filler/Polymer Interface Polymer-based thermal interface materials integrated with excellent stretchability and simultaneously high thermal conductivity would be of great use in the thermal management of next-generation chips featuring higher power density and a larger packaging size. However, combining thermal conductivity and stretchability in the same material is fundamentally challenging. Herein, in view of the important role of filler/polymer interface, we report a stretchable thermal interface material by tailoring chain relaxation through incorporating macromolecular coupling agent at the aluminum/silicone interface. Thanks to the interfacial relaxation effect, the aluminum/silicone thermal interface material exhibits a large stretchability (117%) and a high thermal conductivity (5.90 W m–1 K–1) at the aluminum weight fraction of 91 wt %. Moreover, these materials show great heat dissipation performance in practical applications, which we demonstrated by rapid heat dissipation in LED and chip. This strategy will provide an avenue to implement interface design for high-performance thermal interface materials for high-performance applications, such as high-performance computing, the Internet of Things, 5G networking, and artificial intelligence computing. Thermal grease ; Materials science ; Thermal conductivity ; Interface (matter) ; Composite material ; Thermal management of electronic devices and systems ; Thermal ; Silicone ; Relaxation (psychology) ; Filler (materials) ; Polymer ; Mechanical engineering ; Thermodynamics Thermal properties of materials ; Advanced Sensor and Energy Harvesting Materials ; Dielectric materials and actuators
Authors: Harishchandra Singh | Yi Xiong | Ekta Rani | Shubo Wang | Mourad Kharbach | Tian Zhou | Huai Yao | Yuran Niu | Alexei Zakharov | Graham King | Frank M. F. de Groot | Jukka Kömi | Marko Huttula | Wei Cao
Source: npj Materials Degradation (article, 2022-07-01)
Field: Materials Science — Metals and Alloys

Unveiling nano-scaled chemical inhomogeneity impacts on corrosion of Ce-modified 2507 super-duplex stainless steels Abstract The widely used stainless steels and their deformed variants are anticorrosive in ambient conditions due to passivation layers composed of chromium oxides. Conventionally, corrosion and erosion of the steels are attributed to the breakdown of such layers but seldomly to the origin that depends on surface heterogeneity at the microscopic level. In this work, the nanometer-scaled chemical heterogeneity at the surface unveiled via spectro-microscopy and chemometric analysis unexpectedly dominates the breakdown and corrosion behavior of the cold-rolled Ce-modified 2507 super-duplex stainless steels (SDSS) over its hot-deformed counterpart. Though relatively uniformly covered by a native Cr 2 O 3 layer revealed by X-ray photoemission electron microscopy, the cold-rolled SDSS behaved poorly in passivity because of locally distributed Fe 3+ rich nano-islands over the Fe/Cr oxide layer. This atomic-level knowledge provides a deep understanding of corrosion of stainless steel and is expected to benefit corrosion controls of similar high-alloyed metals. Passivation ; Corrosion ; Materials science ; Oxide ; Metallurgy ; Chromium ; Duplex (building) ; Layer (electronics) ; Passivity ; Nano- ; Nanometre ; Composite material ; Chemistry Hydrogen embrittlement and corrosion behaviors in metals ; Corrosion Behavior and Inhibition ; High-Temperature Coating Behaviors
Authors: Shinichi Hata | Kanto Maeshiro | Misaki Shiraishi | Soichiro Yasuda | Yuta Shiozaki | Koudai Kametani | Yukou Du | Yukihide Shiraishi | Naoki Toshima
Source: Carbon Energy (article, 2022-12-05)
Field: Materials Science — Materials Chemistry

Water‐resistant organic thermoelectric generator with &gt;10 μW output Abstract Flexible p–n thermoelectric generator (TEG) technology has rapidly advanced with power enhancement and size reduction. To achieve a stable power supply and highly efficient energy conversion, absolute chemical stability of n‐type materials is essential to ensuring large temperature differences between device terminals and ambient stability. With the aim of improving the long‐term stability of the n‐type operation of carbon nanotubes (CNTs) in air and water, this study uses cationic surfactants, such as octylene‐1,8‐bis(dimethyldodecylammonium bromide) (12–8–12), a gemini surfactant, to stabilize the nanotubes in a coating, which retains the n‐doped state for more than 28 days after exposure to air and water in experiments. TEGs with 10 p–n units of 12–8–12/CNT (n‐type) and sodium dodecylbenzene sulfonate/CNT (p‐type) layers are manufactured, and their water stability is evaluated. The initial maximum output of 16.1 µW (75 K temperature difference) is retained after water immersion for 40 days without using a sealant to prevent TEG module degradation. The excellent stability of these CNT‐based TEGs makes them suitable for underwater applications, such as battery‐free health monitoring and information gathering systems, and facilitates the development of soft electronics. Materials science ; Dodecylbenzene ; Thermoelectric generator ; Carbon nanotube ; Chemical engineering ; Coating ; Thermoelectric effect ; Nanotechnology ; Sulfonate ; Sodium Advanced Thermoelectric Materials and Devices ; Thermal properties of materials ; Thermal Radiation and Cooling Technologies
Authors: Haneul Han | Chaerin Lee | Youjung Kim | Jinhyun Lee | Sanghwa Yoon | Bongyoung Yoo
Source: Frontiers in Chemistry (article, 2022-11-24)
Field: Materials Science — Electronic, Optical and Magnetic Materials

The self-annealing phenomenon of electrodeposited nano-twin copper with high defect density Electroplated copper was prepared under typical conditions and a high defect density to study the effect of the defects on its self-annealing phenomenon. Two conditions, grain growth and stress relaxation during self-annealing, were analyzed with electron backscattered diffraction and a high-resolution X-ray diffractometer. Abnormal grain growth was observed in both conditions; however, the grown crystal orientation differed. The direction and relative rate at which abnormal grain growth proceeds were specified through textured orientation, and the self-annealing mechanism was studied by observing the residual stress changes over time in the films using the sin<sup>2</sup>Ψ method. Annealing (glass) ; Materials science ; Copper ; Diffractometer ; Grain growth ; Stress relaxation ; Diffraction ; Abnormal grain growth ; Crystallography ; Electroplating ; Condensed matter physics ; Grain size ; Metallurgy ; Composite material ; Scanning electron microscope ; Optics ; Chemistry Copper Interconnects and Reliability ; Metal and Thin Film Mechanics ; Electrodeposition and Electroless Coatings
Authors: Ezechiel Nsabayezu | Aloys Iyamuremye | Jean Pierre Nahimana | Janvier Mukiza | Edwige Kampire | Théophile Nsengimana
Source: Discover Education (review, 2022-06-06)
Field: Chemistry — Physical and Theoretical Chemistry

The progress in the application of rubric materials in chemistry teaching and students’ learning enhancement during 21st century: a systematic review Abstract 21st century teaching and learning emphasize the full engagement of students for improving their critical thinking and cooperation and the construction of the knowledge that demonstrates deep understanding. However, significant studies reported chemistry as a challenging subject caused of abstract concepts, phenomena and ways used in teaching and assessment. In this regard, rubrics were developed as guidelines to judge and score students’ activities and see their achievements. As an assessment tool, a rubric is crucial in the twenty-first century for self-directed learning and individual students’ assessment of the intended learning outcomes. Some teachers and researchers acknowledge the role of rubrics in teaching and learning chemistry. However, the application of rubrics is quite unconsidered. Thus, the present systematic review stresses the 21st-century overview of rubric materials and their progress in application in chemistry teaching and students’ learning enhancement. In cooperation, chemistry teachers and students are encouraged to successfully use rubrics for teaching, learning and as well as in the assessment process as a supporting learning tool. Rubrics have great importance in helping assessors be consistent in scoring students’ activities and availing assessment anticipations to students. Thus, integrating rubrics in teaching and learning chemistry improves students understanding of this subject. Rubric ; Mathematics education ; Chemistry ; Teaching method ; Chemistry education ; Critical thinking ; Psychology ; Computer science Various Chemistry Research Topics ; Innovative Teaching Methods
Authors: Anthony Grbic | S. Maci
Source: IEEE Antennas and Propagation Magazine (article, 2022-08-01)
Field: Materials Science — Electronic, Optical and Magnetic Materials

EM Metasurfaces [Guest Editorial] Metasurfaces (MTSs) <xref ref-type="bibr" rid="ref1" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">[1]</xref> , <xref ref-type="bibr" rid="ref2" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">[2]</xref> , <xref ref-type="bibr" rid="ref3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">[3]</xref> , <xref ref-type="bibr" rid="ref4" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">[4]</xref> , <xref ref-type="bibr" rid="ref5" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">[5]</xref> are the surface equivalent of metamaterials (MTMs): artiﬁcial materials composed of subwavelength inclusions embedded in a host medium tailored to exhibit unconventional electromagnetic (EM) properties. In contrast to MTMs, which are characterized in terms of homogenized material parameters, the EM responses of MTSs are often characterized by homogenized boundary conditions (BCs). MTSs can be designed to exhibit abrupt amplitude and phase discontinuities to perform extreme wavefront transformations. Classical “surface EMs” <xref ref-type="bibr" rid="ref3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">[3]</xref> took on fresh and exciting research directions with MTSs, revealing fascinating phenomena and new applications. Type (biology) ; Mathematics ; Geology Metamaterials and Metasurfaces Applications ; Advanced Antenna and Metasurface Technologies ; Antenna Design and Analysis
Authors: Hongjun Wang | Jiao Li | Jie Sun | Pei Yan | Xibin Wang | Tianyang Qiu
Source: Cardiovascular Engineering and Technology (article, 2022-04-12)
Field: Materials Science — Biomaterials

Multi-Objective Optimization of Bioresorbable Magnesium Alloy Stent by Kriging Surrogate Model Surrogate model ; Finite element method ; Kriging ; Recoil ; Structural engineering ; Stent ; Materials science ; Latin hypercube sampling ; Genetic algorithm ; Computer science ; Mathematical optimization ; Engineering ; Mathematics ; Physics ; Surgery ; Monte Carlo method ; Statistics Magnesium Alloys: Properties and Applications ; Corrosion Behavior and Inhibition ; Aluminum Alloy Microstructure Properties
Authors: Hao Guo | Jun Lai | Chun Li | Haihong Zhou | Chao Wang | Weizhen Ye | Yue Zhong | Xuecheng Zhao | Feng Zhang | Jun Yang | Shouchuang Wang
Source: Metabolites (article, 2022-07-26)
Field: Chemistry — Inorganic Chemistry

Comparative Metabolomics Reveals Key Determinants in the Flavor and Nutritional Value of Coconut by HS-SPME/GC-MS and UHPLC-MS/MS Coconut is a tropical fruit whose flesh has high flavor quality and nutritional value; however, the differences between coconut varieties are still unclear. Here, volatiles and non-volatiles were profiled at three ripening stages by HS-SPME/GC-MS and UHPLC-MS/MS in two coconut varieties (Hainan Tall, HT and Green Dwarf, GD). Four metabolite classes of volatiles were associated with good aroma including hydrocarbons, benzenoids, alcohols and esters, and these volatiles were generally higher in GD, especially at 7 and 9 months of coconut growth. Pathway-based metabolomics revealed that flavonols and their derivatives were significantly enriched in HT, and some of these metabolites were key determinants of HT flesh bitterness, including kaempferol 7-<i>O</i>-glucoside, a known bitter metabolite. Despite the overall accumulation of amino acids, including L-alanine, L-serine and L-methionine in GD, comparative metabolomics revealed that HT flesh provides a higher content of vitamins than GD. This study sheds light on the metabolic pathways and key metabolites differentiating the flesh flavor quality and nutritional value among coconut varieties, and reveals the possible mechanisms of flavor formation and regulation in coconut fruits. Aroma ; Flesh ; Flavor ; Metabolomics ; Food science ; Chemistry ; Metabolite ; Gas chromatography–mass spectrometry ; Ripening ; Flavonols ; Biochemistry ; Mass spectrometry ; Chromatography ; Polyphenol ; Antioxidant Coconut Research and Applications ; Advanced Chemical Sensor Technologies ; Food Chemistry and Fat Analysis
Authors: Florianne Vayer | Claudia Decorse | David Bérardan | Diana Dragoé | Nita Dragoe
Source: Journal of the American Ceramic Society (article, 2022-12-03)
Field: Materials Science — Materials Chemistry

Investigation of the chemical versatility in high‐entropy pyrochlores Abstract This article reports on the exploration of the chemical versatility of entropy‐stabilized pyrochlores (A 2 B 2 O 7 ) with large chemical disorder introduced on the B site, as well as the study of isovalent and aliovalent substitution on the B site and of Ca 2+ ‐doping on the A site. Among all the 20 new compounds obtained in this study, 8 are entropy‐stabilized: RE 2 (TiZrHfGeSn) 2 (with RE = Gd–Ho and Y), Pr 2 (TiZrHfScNb) 2 O 7 , and RE 2 (TiGeSnAlNb) 2 O 7 (with RE = Er and Y). Moreover, some physical properties (magnetic, electrical, thermal, and optical properties) of these high‐entropy pyrochlores have been screened, and some of them could be potentially interesting for applications. For example, we observed low thermal diffusivity values (between 0.4 and 0.7 m 2 s −1 ) making them interesting for thermal barrier coating or tunable optical bandgaps in the visible region that could make them appealing as photocatalysts or in optical applications. Furthermore, single‐phased compounds were obtained for almost all the rare earths (REs) on the A site. Therefore, when five nonmagnetic cations are used for the B site, it enables to study the magnetic properties and, more specifically, the influence of the local chemical and structural disorder on the exotic ground states observed in monocationic RE pyrochlores. Materials science ; Doping ; Entropy (arrow of time) ; Thermal ; Thermal diffusivity ; Pyrochlore ; Rare earth ; Mineralogy ; Thermodynamics ; Chemistry ; Optoelectronics ; Physics ; Metallurgy Nuclear materials and radiation effects ; Advanced Condensed Matter Physics ; High-pressure geophysics and materials
Authors: A. Yu. Ledneva | Galina Chebanova | S. B. Artemkina | А. Н. Лавров
Source: Journal of Structural Chemistry (article, 2022-02-01)
Field: Materials Science — Materials Chemistry

CRYSTALLINE AND NANOSTRUCTURED MATERIALS BASED ON TRANSITION METAL DICHALCOGENIDES: SYNTHESIS AND ELECTRONIC PROPERTIES The article reviews the current state of research of the synthesis, structural, electrophysical and spectroscopic properties of layered transition metal dichalcogenides (TMDs) of group 4-7 elements (M = Zr, Hf, Nb, Ta, Mo, W, Tc, Re; Q = S, Se, Te) depending on their morphology and modification. The changes in the properties of these compounds are considered upon the transition from crystalline materials to nanostructured and monolayer samples. We discuss "fine tuning" of electronic properties by introducing heteroatoms into the TMD structure: intercalation, when a heteroatom is introduced between layers, and isovalent and/or non-isovalent substitution in cationic and anionic sublattices. Practical applications of fine tuning of the properties of TMD based materials are discussed. Transition metal ; Materials science ; Heteroatom ; Monolayer ; Intercalation (chemistry) ; Cationic polymerization ; Solid-state physics ; Electronic structure ; Nanotechnology ; Main group element ; Crystallography ; Inorganic chemistry ; Computational chemistry ; Chemistry ; Condensed matter physics ; Organic chemistry ; Polymer chemistry ; Catalysis 2D Materials and Applications ; Perovskite Materials and Applications ; MXene and MAX Phase Materials