jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Tingwen Guo | Jules Sueiro | Gian Marcello Andolina | Artem Levchuk | Stefano Ponzoni | Romain Grasset | Donald Monthe | Ian Aupiais | D. Daineka | J. Briático | Thales V. A. G. de Oliveira | Alexey Ponomaryov | Atiqa Arshad | Arjun Karimbana-Kandy | Gulloo Lal Prajapati | Igor Ilyakov | Jan‐Christoph Deinert | L. Perfetti | Marco Schiró | Yannis Laplace
Source: ArXiv.org (preprint, 2025-10-03)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Plasmonic metamaterial time crystal Periodically driven optical materials and metamaterials have recently emerged as a promising platform for realizing photonic time crystals (PTCs), which are systems whose optical properties are strongly and periodically modulated on timescales comparable to the optical cycle of light. These time-varying structures are the temporal counterparts of spatial photonic crystals (SPCs), for which a large and periodic dielectric contrast is achieved spatially on wavelength scales. Just as SPCs have revolutionized control over light-matter interactions by engineering the photonic density of states in space, PTCs promise comparable breakthroughs from a fundamentally new perspective: a temporal one. However, harnessing such phenomena all-optically poses severe experimental challenges, as it requires order-unity modulation depths of a material's optical properties on ultrafast timescales comparable to the light cycle, a regime that has remained elusive to date. Here, we demonstrate the first all-optical realization of a photonic time crystal, achieved with a surface plasmon cavity metamaterial operating at Terahertz (THz) frequencies. We demonstrate strong (near-unity) and coherent (sub-optical cycle) periodic driving of the plasmonic metamaterial enabled by field-induced dynamical modulation of the carriers' kinetic energy and effective mass - reaching up to 80% of their rest mass. Our spectroscopic measurements reveal a transition into the PTC regime mediated by an exceptional point, at which two Floquet-driven optical eigenmodes coalesce. In the PTC regime, emergent gain is shown to reduce plasmonic losses by more than 50% and we predict plasmonic lasing to be within experimental reach. These results pave the way for temporal engineering of losses and light-matter interactions in plasmonic systems, and establish a robust new platform for time-domain photonics. Plasmon ; Metamaterial ; Photonics ; Photonic metamaterial ; Photonic crystal ; Terahertz radiation ; Modulation (music) ; Resonator ; Surface plasmon Metamaterials and Metasurfaces Applications ; Plasmonic and Surface Plasmon Research ; Topological Materials and Phenomena
Authors: Yanfu Xie | Shihong Jiang | Yongkang Qiao
Source:  (article, 2025-06-06)
Field: Materials Science — Materials Chemistry

Soft-Support Graphene Resonator with Phononic Crystal The development of high-performance sensors has become critically important in aviation, aerospace, and related technological fields. Graphene, with its exceptional mechanical and electrical properties, has emerged as a promising material for advancing sensor capabilities, sparking significant academic and industrial interest. As a novel sensing element, graphene-based resonators demonstrate extraordinary sensitivity owing to their atomic-scale thickness. Nevertheless, practical applications of these resonators at ambient temperatures face challenges due to insufficient environmental robustness and operational stability. These limitations are intrinsically tied to the relatively low Q-factor. To overcome this challenge, this study establishes a theoretical framework for energy dissipation dilution in graphene resonators, enabling systematic analysis of energy loss distribution patterns. Building upon this theoretical foundation, we introduce an innovative approach utilizing phononic crystal soft-support architectures to suppress vibrational energy dissipation. Through computational modeling and validation, the design and fabrication of graphene resonators incorporating these engineered support structures are optimized. This methodology not only advances fundamental understanding of energy dissipation mechanisms but also provides a practical pathway for enhancing resonator performance. The integration of phononic crystal principles offers a breakthrough in Q-factor enhancement, positioning graphene resonators as viable candidates for next-generation high-precision sensing systems. Resonator ; Graphene ; Robustness (evolution) ; Fabrication ; Dissipation ; Crystal (programming language) Graphene research and applications ; Carbon Nanotubes in Composites ; Advanced Energy Technologies and Civil Engineering Innovations
Authors: Toshimitsu Sakurai | Toshihiro Somekawa | Yuji Hirai | Hiroki Matsushita
Source: Journal of Photopolymer Science and Technology (article, 2025-06-24)
Field: Materials Science — Surfaces, Coatings and Films

Superhydrophobic PDMS using Femtosecond Laser-Processed Surface Molds for Anti-Icing Icicles often form at road tunnel mouths, on-road information boards, bridges, and other infrastructures when heat sources melt snow. The shedding of icicles causes damage to vehicles. Anti-icing coatings have been used for decades to prevent snow and ice from adhering to highway structures. However, these coatings only last a few years, and there is a need for long lasting anti-icing materials. We developed superhydrophobic polydimethylsiloxane by femtosecond laser processing surface molds. Water-cooled droplets immediately roll off and the surface can mitigate icicle formation. Materials science ; Femtosecond ; Icing ; Laser ; Wetting ; Composite material ; Surface (topology) ; Nanotechnology ; Optics ; Meteorology Surface Modification and Superhydrophobicity ; Adhesion, Friction, and Surface Interactions ; Icing and De-icing Technologies
Authors: Cagatay Han Aldemir | Ahmet Faruk Yazıcı | Nehir Ergezer | Taha Can Korkmaz | Evren Mutlugün | Yusuf Keleştemur
Source: Advanced Materials Interfaces (article, 2025-04-27)
Field: Materials Science — Materials Chemistry

Zinc Chalcogenide Based Shell Layers for Colloidal Quantum Wells Abstract Colloidal quantum wells, also known as colloidal nanoplatelets (NPLs), have emerged as a promising class of materials for light‐emitting devices (LEDs). However, the most widely studied core/shell NPLs, which rely on cadmium‐based shell layers, face challenges due to toxicity concerns and improper charge confinement. To address these limitations, a new synthetic approach is presented that enables the controlled growth of zinc chalcogenide‐based shell layers on NPLs. The synthesized CdSe/ZnSe core/shell NPLs exhibit emission between 615 and 630 nm, with a moderate photoluminescence quantum yield (PL‐QY) of 40–50%. It is also demonstrated that the lateral dimensions of the CdSe core NPLs significantly affect the optical properties of the core/shell heterostructures, with smaller lateral dimensions resulting in narrower emission linewidths as low as 20 nm. Further passivation of these core/shell NPLs with an additional ZnS shell layer significantly increases the PL‐QY up to 80–90%. Finally, the device performance of these two core/shell NPLs is investigated by fabricating solution‐processed LEDs. With LEDs incorporating CdSe/ZnSe/ZnS core/multi‐shell NPLs as the active light‐emitting layer, an external quantum efficiency (EQE) of 3.82% and a maximum brightness of 6477 cd m − 2 is obtained. These findings underscore the significant potential of zinc chalcogenide‐based shell layers in advancing colloidal NPLs toward high‐performance light‐emitting devices. Materials science ; Chalcogenide ; Shell (structure) ; Colloid ; Nanotechnology ; Quantum well ; Zinc ; Chemical engineering ; Metallurgy ; Composite material ; Optics ; Physics ; Engineering Quantum Dots Synthesis And Properties ; Chalcogenide Semiconductor Thin Films ; Perovskite Materials and Applications
Authors: Wojciech Petrykowski | Marzena Banasiewicz | Olaf Morawski | Zbigniew Kałuża | Cristina A. Barboza | Daniel T. Gryko
Source: Physical Chemistry Chemical Physics (article, 2025-12-10)
Field: Chemistry — Physical and Theoretical Chemistry

<i>N</i> -Aryl substituents have an influence on the photophysics of tetraaryl-pyrrolo[3,2- <i>b</i> ]pyrroles The photophysics of two series of 1,4-dihydro-tetraaryl-pyrrolo[3,2-<i>b</i>]pyrroles possessing <i>N</i>-aryl substituents with various electronic characteristics was investigated systematically. The molecular structure of these compounds was designed so that their solubility enabled us to study their absorption and emission in a broad range of solvents. The presence of <i>N</i>-4-nitrophenyl substituents is responsible for a weak charge-transfer absorption band and shifts the emission band hypsochromically. At the same time, their presence quenches fluorescence; although if electron-withdrawing substituents are present at positions 2 and 5, this effect is reduced by an order of magnitude. In the case of less electron-withdrawing <i>N</i>-4-cyanophenyl and <i>N</i>-3-cyanophenyl groups, strong emission is present only if the electron-withdrawing groups are located at positions 2 and 5. The combined experimental and computational study points out the existence of a barrier between a<sub>u</sub> (bright) and a<sub>g</sub> (dark) CT states, the height of which is the key factor governing the fate of these molecules in the excited state. Weaker electronic communication at positions 1 and 4 of the DHPP core is responsible for strong charge separation. Polar solvents favor the formation of transient dipole moments due to excited-state symmetry-breaking, which amplifies the nonradiative deactivation of nitro-TAPPs. A large increase in fluorescence intensity at 77 K suggests that internal conversion is a key channel for non-radiative electronic relaxation. Conversely, moderate to weak electron-donating groups favor strong LE emission. Excited state ; Dipole ; Absorption (acoustics) ; Molecule ; Fluorescence ; Electronic structure ; Absorption spectroscopy ; Absorption band ; Polar Photochemistry and Electron Transfer Studies ; Luminescence and Fluorescent Materials ; Synthesis and Properties of Aromatic Compounds
Authors: Lisa M. S. Stiegler | K. David Wegner | Florian Weigert | Wolfgang Peukert | Ute Resch‐Genger | Johannes Walter
Source: Small Methods (article, 2025-01-12)
Field: Materials Science — Materials Chemistry

Analysis of Giant‐Shell CdSe/CdS Quantum Dots via Analytical Ultracentrifugation Combined with Spectrally Resolved Photoluminescence Knowledge of the structure-property relationships of functional nanomaterials, including, for example, their size- and composition-dependent photoluminescence (PL) and particle-to-particle variations, is crucial for their design and reproducibility. Herein, the Angstrom-resolution capability of an analytical ultracentrifuge combined with an in-line multiwavelength emission detection system (MWE-AUC) for measuring the sedimentation coefficient-resolved spectrally corrected PL spectra of dispersed nanoparticles is demonstrated. The capabilities of this technique are shown for giant-shell CdSe/CdS quantum dots (g-QDs) with a PL quantum yield (PL QY) close to unity capped with oleic acid and oleylamine ligands. The MWE-AUC PL measurements are calibrated and validated with certified fluorescence standards. The spectrally corrected and size-dependent PL spectra of the g-QDs derived from a single MWE-AUC experiment are then analyzed and compared with the results of single-particle spectroscopic studies, yielding the PL spectra, decay kinetics, and blinking behavior of individual g-QDs. This study underlines the vast potential of MWE-AUC with in-line optical detection for the characterization of advanced nanomaterials with a complex structure. Photoluminescence ; Quantum dot ; Quantum yield ; Nanomaterials ; Oleylamine ; Materials science ; Particle size ; Analytical Chemistry (journal) ; Particle (ecology) ; Nanoparticle ; Chemistry ; Fluorescence ; Nanotechnology ; Optoelectronics ; Physical chemistry ; Physics ; Optics ; Chromatography Quantum Dots Synthesis And Properties ; Gold and Silver Nanoparticles Synthesis and Applications ; Biosensors and Analytical Detection
Authors: Ying Fu | Han Ge | Jian Chen | Jie Xiao | Yi Tan | Le Wang | Junfeng Wang | Chao Dong | Zhe Qu | Miao He | Chuanying Xi | Langsheng Ling | Bin Xi | Jia‐Wei Mei
Source: ArXiv.org (preprint, 2025-01-16)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Berezinskii-Kosterlitz-Thouless region and magnetization plateaus in easy-axis triangular weak-dimer antiferromagnet K$_2$Co$_2$(SeO$_3$)$_3$ We investigate the magnetic phase diagram of the bilayer triangular antiferromagnet K$_2$Co$_2$(SeO$_3$)$_3$, revealing a rich interplay among geometric frustration, bilayer coupling, and symmetry-driven phenomena. High-field magnetization measurements show fractional magnetization plateaus at 1/3, 1/2, 2/3, and 5/6 of the saturation magnetization. To elucidate the experimental magnetic phase diagram at low fields, we propose that K$_2$Co$_2$(SeO$_3$)$_3$ can be described as an easy-axis triangular weak-dimer antiferromagnet. We emphasize the critical role of the emergent $U(1) \otimes S_3$ symmetry, where $S_3 = \mathbb{Z}_3 \otimes \mathbb{Z}_2^d$, in determining the magnetic phases at low fields. The remarkable agreement between the experimental and theoretical phase diagrams suggests that the phase transitions are governed by this symmetry. Notably, our combined experimental and theoretical results identify a Berezinskii-Kosterlitz-Thouless (BKT) phase region at finite fields. These findings provide new insights into the phase structure of frustrated magnets and establish K$_2$Co$_2$(SeO$_3$)$_3$ as a compelling platform for exploring unconventional quantum phenomena in $U(1) \otimes S_3$ systems. Magnetization ; Condensed matter physics ; Dimer ; Physics ; Quantum mechanics ; Magnetic field ; Nuclear magnetic resonance Magnetism in coordination complexes ; Crystal Structures and Properties ; Solid-state spectroscopy and crystallography
Authors: R. M. Mhetre | Anjali Lavate | Rahul I. Jadhav | S. K. Patil
Source: Cuestiones de Fisioterapia (article, 2025-02-20)
Field: Materials Science — Biomaterials

FORMULATION AND EVALUATION OF NANOSTRUCTURED LIPID CARRIERS FOR TARGETED DRUG DELIVERY SYSTEM The formulation and evaluation of Nanostructured Lipid Carriers (NLCs) for targeted drug delivery systems is a crucial area of pharmaceutical research aimed at enhancing therapeutic efficacy and minimizing side effects. This dissertation focuses on optimizing NLC formulations by selecting appropriate materials, including various lipid types, surfactants, and model drugs. Drug delivery ; Drug carrier ; Targeted drug delivery ; Nanotechnology ; Drug ; Carrier system ; Pharmacology ; Chemistry ; Materials science ; Computer science ; Medicine ; Telecommunications Nanoparticle-Based Drug Delivery ; Advanced Drug Delivery Systems ; Graphene and Nanomaterials Applications
Authors: Boris Krichel | Hsin‐Ju Chan | Liam J. Bandura | Zhan Gao | Man‐Di Wang | Holden T. Rogers | Sean J. McIlwain | Charlotte Uetrecht | Ying Ge
Source: bioRxiv (Cold Spring Harbor Laboratory) (preprint, 2025-10-11)
Field: Chemistry — Spectroscopy

AMPK Phosphorylation Proceeds Through Hierarchical Proteoform Cascades Revealed by Integrated Mass Spectrometry Protein phosphorylation creates functionally distinct proteoforms through complex modification cascades, yet capturing their temporal dynamics and combinatorial patterns remains a major analytical challenge. Here, we introduce a hybrid precision mass spectrometry (MS) strategy that integrates intact mass measurements for temporal tracking, bottom-up MS analysis for site-specific kinetics, and top-down MS sequencing for proteoform characterization to resolve phosphorylation dynamics within intact kinase complexes. Using AMP-activated protein kinase (AMPK) as a model system, we uncover coordinated autophosphorylation cascades exhibiting kinetic hierarchies, with α1-S496 showing the highest kinetic efficiency. Allosteric ADaM-site activation bypasses canonical α1-T183 phosphorylation, enabling autophosphorylation even in activation-deficient mutants. Top-down MS sequencing identifies the predominant β1 proteoform as S24/25+S108 double phosphorylation, a pattern linking extranuclear distribution with allosteric responsiveness. Phosphatase competition shows PP1A selectively removes activation-loop phosphorylation while autophosphorylation sites remain protected. This integrated strategy uncovers the proteoform dynamics underlying AMPK activation and provides a broadly applicable framework for studying phosphorylation-based regulation in kinases. Autophosphorylation ; Phosphorylation ; Allosteric regulation ; Protein dynamics ; Phosphatase ; AMPK ; Phosphoproteomics ; Protein kinase A Mass Spectrometry Techniques and Applications ; Ion-surface interactions and analysis ; Advanced Proteomics Techniques and Applications
Authors: Xiaogang Liu | Jing Tan | Xiaoqing Song | Chunmiao Han | Feng Wang | Jing Zhang | Chunbo Duan | Sanyang Han | Hui Xu
Source: Research Square (preprint, 2025-01-22)
Field: Materials Science — Materials Chemistry

Harnessing electro-generated excitons for tunable lanthanide nanocrystal electroluminescence Nanocrystal ; Electroluminescence ; Lanthanide ; Exciton ; Materials science ; Optoelectronics ; Nanotechnology ; Physics ; Condensed matter physics ; Ion ; Quantum mechanics Quantum Dots Synthesis And Properties ; Nanocluster Synthesis and Applications ; Advanced biosensing and bioanalysis techniques
Authors: Al-Zain Yazan | Sakato Masanari | Yamamoto Akiko | AlAjlouni Jihad M. | Al-Abbadi Mousa A. | Aloweidi Abdelkarim S. | K. K. Young
Source: Institutional Repositories DataBase (IRDB) (article, 2025-11-15)
Field: Materials Science — Materials Chemistry

Balancing strength, modulus, and biocompatibility in a novel oxygen-containing β-type titanium alloy Biocompatibility ; Titanium alloy ; Alloy ; Nickel alloy ; Context (archaeology) Titanium Alloys Microstructure and Properties ; Bone Tissue Engineering Materials ; Magnesium Alloys: Properties and Applications
Authors: Emmanuel Olorundaisi | Peter Apata Olubambi
Source: MATEC Web of Conferences (article, 2025-01-01)
Field: Materials Science — Metals and Alloys

Tailoring dual-phase steel properties through controlled temperature and holding time during heat treatment This study investigates the effect of controlled temperature and holding time on the microstructure and properties of DP600 dual-phase steel. Low-carbon steel (0.3 wt%C) was heat-treated at 850°C with holding times of 20, 40, 60, and 80 minutes, followed by quenching in bitumen. The microstructure revealed variations in ferrite-martensite dispersion with increasing holding time. Improved mechanical properties were observed due to microstructural evolution, while corrosion resistance decreased with prolonged exposure. The findings highlight the critical role of heat treatment parameters in optimizing dual-phase steel properties for engineering applications. Microstructure ; Quenching (fluorescence) ; Corrosion ; Dispersion (optics) ; High-temperature corrosion Hydrogen embrittlement and corrosion behaviors in metals ; Microstructure and Mechanical Properties of Steels ; Metal Alloys Wear and Properties
Authors: Miguel Ángel Ibáñez-Hernández | Cynthia Avendaño-Portugal | Mariela Montaño-Samaniego | Raquel Guttman-Bazbaz | Diana M. Bravo‐Estupiñan
Source: Preprints.org (preprint, 2025-04-04)
Field: Materials Science — Biomaterials

Therapeutic Applications of Poly-miRNAs and miRNA Sponges MicroRNAs (miRNAs) are small, non-coding RNA molecules that play crucial roles in regulating gene expression, and their dysregulation is implicated in various human diseases. Over the years, several research groups have identified miRNAs as promising therapeutic targets for intervention. Therapeutic strategies involve either the overexpression or knockdown of specific miRNAs. This review aims to provide a comprehensive overview of synthetic poly-miRNAs and miRNA sponges, highlighting their therapeutic applications. It begins with an introduction to miRNAs and their role in human diseases, followed by a detailed discussion on synthetic poly-miRNAs and miRNA sponges by exploring their application in cardiovascular, inflammatory, autoimmune, and metabolic disorders, as well as in cancer therapy. Additionally, strategies for targeted delivery, challenges, and limitations of these therapies are addressed. microRNA ; Computational biology ; Sponge ; Biology ; Genetics ; Gene ; Paleontology Silk-based biomaterials and applications ; RNA Interference and Gene Delivery ; Biopolymer Synthesis and Applications
Authors: Tingzheng Hou
Source: Highlights in Science Engineering and Technology (article, 2025-02-25)
Field: Materials Science — Materials Chemistry

New Phenomena in Condensed Matter Physics: Topological Insulators and Twisted Bilayer Graphene Phenomena include the Kosterlitz-Thouless phase transition, fractional quantum Hall effect, and high-temperature superconductivity have driven advances in condensed matter physics, offering a foundation for the investigation of superconductivity and the quantum Hall effect, as well as aiding in the comprehension of the behavior of strongly correlated electrons. The discovery of topological insulators and the preparation of graphene triggered important breakthroughs 20 years ago, leading to novel phenomena include topological superconductivity, the quantum anomalous Hall effect, corner graphene, and quantum spin liquids, which opened new directions in quantum materials research. Through the study of topological superconductors and flat band effects, this paper elucidates the role of topological energy band theory in describing Majorana fermions and their non-abelian statistical properties and reveals the phenomena of superconductivity and Mott's insulating state due to strong electronic interactions in magic-angle cornering graphene. The results show that the theory of topological energy bands and flat band effects can explain the strongly correlated electronic effects, providing theoretical support for understanding the phase transition from Mott insulating states to superconducting states and the Majorana zero mode in quantum computation. This paper emphasizes the importance of topological and two-dimensional materials in the study of strongly correlated electrons, providing guidance for future research. Bilayer graphene ; Graphene ; Condensed matter physics ; Topological insulator ; Physics ; Theoretical physics ; Nanotechnology ; Materials science ; Quantum mechanics Graphene research and applications ; Topological Materials and Phenomena ; Quantum and electron transport phenomena
Authors: Dayanidhi Jena | S. Das
Source: Journal of Umm Al-Qura University for Engineering and Architecture (article, 2025-10-28)
Field: Materials Science — Polymers and Plastics

Mechanical and microstructural characterization of laminate composites hybridised with carbon fibre and rice husk particulate fillers Ultimate tensile strength ; Composite number ; Flexural strength ; Scanning electron microscope ; Bending ; Husk ; Brittleness ; Carbon nanotube ; Particulates Natural Fiber Reinforced Composites ; Mechanical Behavior of Composites ; Fiber-reinforced polymer composites