jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: N. D. H. Arachchi | Luca Russo | Paul J. Molino | Son Lam Phung | Takayuki Uchihashi | Michael J. Higgins
Source: Biointerphases (article, 2025-11-01)
Field: Materials Science — Surfaces, Coatings and Films

Single-molecule dynamics of fibrinogen and bovine serum albumin adsorption on silica nanoparticle coatings observed using high-speed atomic force microscopy High-speed atomic force microscopy (HS-AFM) was used to directly visualize the single-molecule adsorption dynamics of fibrinogen (FG) and bovine serum albumin (BSA) on atomically smooth mica and on silica nanoparticle (SiNP) coatings. By capturing the motion of individual proteins against a static background, HS-AFM enables the resolution of key dynamic processes, including surface diffusion, conformational adaptation, binding and unbinding events, and interfacial fluctuations on nanostructured surfaces. The results revealed two distinct, protein-specific adsorption mechanisms on SiNP coatings. BSA adsorbed via strong protein-surface interactions that promoted conformational adaptation and localized shell-like coverage of individual nanoparticles-progressively occupying interparticle interstices but leaving the overall nanoparticle topography visible. In contrast, FG adsorption followed a concentration-dependent, two-stage process; proteins first adsorbing directly to the nanoparticle surface, and at higher coverages, associated via protein-protein interactions, producing a secondary, dynamic, and loosely bound outer layer. This FG protein layer reduced the root-mean-square roughness of the underlying surface from a peak of ∼13.2 to ∼7.8 nm while introducing pronounced molecular-level fluctuations at the interface, as inferred from tip-induced smearing in HS-AFM images. These findings demonstrate that the relevant biological interface is not a static substrate, but a dynamic, structurally defined protein layer, whose properties are dictated by both nanoscale surface topography and the characteristics of the adsorbing proteins. Adsorption ; Nanoparticle ; Bovine serum albumin ; Mica ; Molecular biophysics ; Surface forces apparatus ; Atomic force microscopy ; Protein adsorption ; Surface roughness ; Surface finish Polymer Surface Interaction Studies ; Force Microscopy Techniques and Applications ; Blood properties and coagulation
Authors: Elfahem Sakher | Tourkia Tahri | Stefano Bellucci | M. Bououdina
Source: physica status solidi (a) (article, 2025-07-17)
Field: Materials Science — Materials Chemistry

Unraveling Particle Folding in Nanostructured Shape Memory Alloy Ni<sub>50</sub>Ti<sub>50</sub> Prepared by Mechanical Alloying This work examines the influence of milling parameters on the evolution of the microstructure of Ni 50 Ti 50 alloy prepared by high‐energy mechanical alloying (MA). The study unveils a particle‐folding phenomenon observed through scanning electron microscopy, which diverges from the conventional welding and fracturing mechanisms previously associated with MA. It is found that milling duration is critical, with particle folding being predominant in the initial stages, subsequently becoming less pronounced in favor of traditional processes over extended milling times. The research underscores the importance of processing parameters in achieving desired microstructural characteristics and suggests the potential for better control of nanocrystalline material properties. The outcomes present new opportunities for material synthesis, offering insights into the fabrication of nanomaterials with enhanced and tailored properties for various technological applications. Nanocrystalline material ; Microstructure ; Materials science ; Alloy ; Particle (ecology) ; Scanning electron microscope ; Folding (DSP implementation) ; Welding ; Nanomaterials ; Fabrication ; Metallurgy ; Work (physics) ; Nanotechnology ; Chemical engineering ; Composite material ; Mechanical engineering Shape Memory Alloy Transformations ; Nanoporous metals and alloys ; Metallic Glasses and Amorphous Alloys
Authors: Xiaolong Wang | Jingjing An | Alaa Hassan | Qingsen Gao | Xianhu Liu | Hakim Boudaoud
Source: Polymers (article, 2025-05-25)
Field: Materials Science — Surfaces, Coatings and Films

Innovative 3D-Printed Superhydrophobic Porous Architectures for Continuous Oil–Water Separation Efficient superhydrophobic oil-water separation materials are essential for environmental remediation and industrial wastewater treatment. In this study, by optimizing printing parameters, such as printing speed, extrusion multiplier, and layer height, we achieved high-precision 3D porous architectures with uniform pore sizes. The pore size could reach 677.3 µm, with a maximum deviation of less than 36.1 µm. Additionally, we successfully printed pores as small as 186.7 µm, representing the smallest FFF-printed pore size reported in the literature. The printed structures were modified using a spray-coating method, achieving a superhydrophobic surface with a water contact angle of 158.2°. The material was tested in a continuous oil-water separation system, maintaining stable oil removal performance for 24 h. The highest separation efficiency reached 88.6%, demonstrating strong durability and long-term applicability. This study establishes a scalable, low-cost approach for fabricating highly efficient 3D superhydrophobic porous materials, offering new opportunities for continuous oil spill cleanup and industrial wastewater treatment. Materials science ; Porosity ; Contact angle ; Extrusion ; Durability ; Superhydrophobic coating ; Coating ; Nanotechnology ; Composite material ; Process engineering ; Engineering Surface Modification and Superhydrophobicity ; Advanced Sensor and Energy Harvesting Materials ; Electrospun Nanofibers in Biomedical Applications
Authors: Oksana Iamshanova | Anne-Flore Hämmerli | Suberja Sundaralingam | Arbresh Seljmani | Sabrina Guichard | Maria C. Essers | Jean‐Sébastien Rougier | Hugues Abriel
Source: bioRxiv (Cold Spring Harbor Laboratory) (preprint, 2025-10-03)
Field: Chemistry — Spectroscopy

Biochemical assessment of α-α-subunit interactions of Na <sub>v</sub> 1.5 in a heterologous expression system Heterologous overexpression of any protein, and especially of the large transmembrane channel Na v 1.5, could be associated with the insufficiency of endoplasmic reticulum folding machinery, hence leading to aspecific protein aggregation indistinguishable from the genuine α-α-subunit interactions. In this study, we show that the interactions between heterologous Na v 1.5 proteins depend on nascent N-linked glycosylation, are supported by non-native intermolecular disulfide bonds, and are likely predisposed to hydrophobic “stickiness”. Particularly, we show strong interactions between the full-length Na v 1.5 and its truncated peptides: N-terminal domain, all four transmembrane domains, as well as the intracellular linker between domains I and II. Taken together, we conclude that the heterologous expression system is not optimal for the identification of α-α-subunit interaction sites of Na v 1.5, and this question needs to be further addressed in the native tissues. Graphical abstract Heterologous ; Endoplasmic reticulum ; Heterologous expression ; Transmembrane protein ; Transmembrane domain ; Linker ; STIM1 ; Folding (DSP implementation) Mass Spectrometry Techniques and Applications
Authors: Jianjun Chen | Xin Wei | Shichang Li | Zhi Li | Qihuang Gong | Huafeng Ding
Source: Research Square (preprint, 2025-07-14)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Freely manipulating on-chip sources by intelligent-algorithm vectorial metasurfaces based on an identity scheme Scheme (mathematics) ; Identity (music) ; Chip ; Computer science ; Algorithm ; Physics ; Mathematics ; Telecommunications ; Acoustics Metamaterials and Metasurfaces Applications ; Advanced Antenna and Metasurface Technologies ; Cellular Automata and Applications
Authors: Zhengchao Qin | Zhiyi Wang | Si Gao | Hongjuan Zheng | Jin Luo | Yunfei Liu | Yinong Lyu
Source: Crystals (article, 2025-06-26)
Field: Materials Science — Materials Chemistry

Effect of Sm3+ Doping on Energy Storage Property and Thermal Stability of BaSnxTi1−xO3 Ceramics Dielectric capacitors have become a key component for energy storage systems, owing to their exceptional power density and swift charge–discharge performance. In a series of lead-free ferroelectric ceramic materials, BaSnxTi1-xO3 (BTS) received widespread attention due to its unique properties. However, BTS ceramics with high Sn content have high efficiency (η) but low recovery energy storage density (Wrec). We incorporated the Sm element into BTS ceramics and aimed to optimize both efficiency and recoverable energy density at moderate Sn content. With the synergistic effect between Sm and Sn, the optimal composition was found at 5% Sn content with 1% low-level Sm dopants, where the energy storage density reached 0.2310 J/cm3 at 40 kV/cm. Furthermore, the thermal stability of the ceramic was investigated using temperature-dependent dielectric spectroscopy, in situ XRD, and temperature-dependent hysteresis loops. With Sm doping, the fluctuation of Wrec decreased from 18.48% to 12.01%. In general, this work not only enhances the understanding of samarium dopants but also proposes strategies for developing lead-free ferroelectric ceramics with superior energy storage properties. Doping ; Materials science ; Ceramic ; Thermal stability ; Energy storage ; Property (philosophy) ; Stability (learning theory) ; Thermal ; Chemical engineering ; Composite material ; Optoelectronics ; Computer science ; Thermodynamics ; Physics ; Engineering Ferroelectric and Piezoelectric Materials ; Microwave Dielectric Ceramics Synthesis ; Magnetic and transport properties of perovskites and related materials
Authors: Elnaz Khalili Samani | S M Naimul Hasan | Alexander F. A. Keszei | Mahtab Heydari | Mohammad T. Mazhab‐Jafari
Source: Protein Science (article, 2025-12-22)
Field: Chemistry — Organic Chemistry

Structural basis of product recognition by <i>Mycobacterium tuberculosis</i> fatty acid synthase Microbial iterative fatty acid synthases (FAS) are versatile multienzymes under scrutiny for their potential as anti-infectious targets and their biotechnological applications. They produce saturated fatty acids with defined chain length and release them as coenzyme A-conjugates. How they recognize appropriate acyl length to initiate the process of product release is unknown. Here, we resolved two intermediate state structures of FAS, one from each of the two organisms: bacterium Mycobacterium tuberculosis and yeast Saccharomyces cerevisiae. These structures reveal how acyl carrier protein (ACP) domain and nascent fatty acids interact with the substrate-promiscuous malonyl-palmitoyl transferase (MPT) domain that is involved in product cleavage from the enzyme. MPT adopts a transient channel necessary for the accommodation of long-chain fatty acids. This channel is formed by the transient retraction of a conserved arginine side chain involved in malonate binding. These insights uncover structural determinants that enable M. tuberculosis type I FAS to produce very long-chain fatty acids used for evading host immunity in tuberculosis (TB). Fatty acid synthase ; Fatty acid ; Acyl carrier protein ; Saccharomyces cerevisiae ; Yeast ; Cofactor ; Transferase ; Coenzyme A ; Mycobacterium tuberculosis Antimicrobial agents and applications ; Microbial Natural Products and Biosynthesis ; Enzyme Structure and Function
Authors: Kar Fei Chan | Aizuddin Supee | Masaki Tanemura | Hidetoshi Miyazaki | Mohd Zamri Mohd Yusop
Source: Journal of Materials Science (article, 2025-12-04)
Field: Materials Science — Materials Chemistry

Microstructural refinement and intermetallic strengthening in Zn–Mn alloys The influence of Mn addition on the microstructure, defect structure, intermetallic phase evolution, and mechanical performance of as-cast Zn-Mn alloys was systematically investigated across Mn compositions from 0 to 2.4 wt%. Field emission scanning electron microscopy (FESEM) and electron backscatter diffraction (EBSD) analyses revealed a monotonic reduction in average grain size from 626 ± 15 µm to 282 ± 7 µm at Mn2.4, accompanied by an increase in high-angle boundary (HAB) fraction from 58 to 75%. At low-Mn contents (0.4–0.8 wt%), refinement was governed primarily by solute drag and constitutional undercooling, with fine, discrete MnZn₁₃ precipitates providing moderate Zener pinning. When Mn addition above 1.0 wt%, lamellar polygonal MnZn₁₃ networks became prevalent, imposing stronger boundary mobility constraints and increasing lattice strain. Mechanical testing showed that Vickers hardness increased from 38.42 ± 4.33 HV to 51.24 ± 6.31 HV with Mn addition, corresponding to estimated yield strength and Young’s modulus increases from ~ 125 MPa and ~ 37.7 GPa to ~ 168 MPa and ~ 50.5 GPa, respectively. Hall–Petch analysis confirmed grain boundary strengthening as the primary hardening mechanism, supplemented by dislocation-based and particle strengthening at higher Mn levels. The results establish a clear processing microstructure property relationship in Zn-Mn alloys, highlighting low to moderate Mn additions as optimal for balancing strength, ductility, and corrosion resistance, while higher Mn levels maximize strength at the expense of potential galvanic stability. Intermetallic ; Microstructure ; Strengthening mechanisms of materials ; Grain boundary ; Solid solution strengthening ; Lamellar structure ; Hardening (computing) ; Vickers hardness test Microstructure and mechanical properties ; Electronic Packaging and Soldering Technologies ; Aluminum Alloys Composites Properties
Authors: Jorge Vallejo Bustamante | Viet-Hung Nguyen | Liam Farrar | Kenji Watanabe | Takashi Taniguchi | D. Mailly | Jean-Christophe Charlier | Rebeca Ribeiro-Palau
Source: ArXiv.org (preprint, 2025-10-22)
Field: Materials Science — Materials Chemistry

Mapping the twist angle dependence of quasi-Brillouin zones in doubly aligned graphene/BN heterostructures When monolayer graphene is crystallographically aligned to hexagonal boron nitride (BN), a moiré superlattice is formed, producing characteristic satellite Dirac peaks in the electronic band structure. Aligning a second BN layer to graphene creates two coexisting moiré patterns, which can interfere to produce periodic, quasi-periodic or non-periodic superlattices, depending on their relative alignment. Here, we investigate one of the simplest realizations of such a double-moiré structure, graphene encapsulated between two BN layers, using dynamically rotatable van der Waals heterostructures. Our setup allows \textit{in situ} control of the top BN alignment while keeping the bottom BN fixed. By systematically mapping the charge transport as a function of BN angular alignment, we identify the simultaneous signatures of the original moirés, super-moirés, and a third set of features corresponding to quasi-Brillouin zones (qBZ) formed when the system's periodicity becomes ill-defined. Comparing our measurements with theoretical models, we provide the first experimental mapping of the qBZs as a function of angular alignment. Our results establish a direct experimental link between moiré interference and qBZ formation, opening new avenues for engineering electronic structures in multi-aligned 2D heterostructures. Graphene ; Superlattice ; Heterojunction ; Electronic band structure ; Dirac (video compression format) ; Twist ; Monolayer ; Boron nitride Graphene research and applications ; 2D Materials and Applications ; Topological Materials and Phenomena
Authors: Huizi Zhao | Zi Ye | Longyang Jiang | Liang Li | Rui Wang | Zining Yang | Weiqiang Yang | Hongyan Wang | Weihong Hua | Xiaojun Xu
Source: Photonics (article, 2025-10-08)
Field: Chemistry — Spectroscopy

Wide Tunable Spectrum and High Power Narrowed Linewidth Dual-Wavelength Broad Area Diode Laser We demonstrate a dual-wavelength broad-area diode laser system with narrow linewidth and wide spectral tunability using a composite external cavity comprising a volume Bragg grating and a Littrow-type transmission grating. One wavelength is stabilized at 780.25 nm with a linewidth of ~0.13 nm, while the other achieves a continuous tuning range of 772.24–786.43 nm with a linewidth of ~0.17 nm. The system exhibits a side-mode suppression ratio exceeding 20 dB across the entire tuning range. At a dual-wavelength separation of 4.29 nm, the total output power reaches 2.62 W. Additionally, we successfully validate the system’s potential for nonlinear optical applications. Laser linewidth ; Tunable laser ; Laser ; Semiconductor laser theory ; Wavelength ; Diode ; Fiber Bragg grating ; Grating Spectroscopy and Laser Applications ; Advanced Fiber Laser Technologies ; Solid State Laser Technologies
Authors: Abedalghani Halahlah | Kellil Abdessamie | Susanna Peltonen | Ho Minh Thao
Source: Sustainable Food Technology (article, 2025-12-02)
Field: Materials Science — Biomaterials

A review of innovative approaches for valorizing brewing by-products for food applications and consumer perceptions Successful valorization of brewing by-products for food applications depends on the utilization of innovative technologies, integration of consumer insights during formulation development, and the implementation of effective market strategies. Brewing ; Perception ; Food processing ; Food industry ; Food products ; Government (linguistics) Nanocomposite Films for Food Packaging ; Food composition and properties ; Fermentation and Sensory Analysis
Authors: Trent Lau | Ashley Talwar | Bijan Abar | Samuel B. Adams
Source: Biomimetics (article, 2025-11-19)
Field: Materials Science — Biomaterials

Three-Dimensional Printing Parameter Assessment of Elastomers for Tendon Graft Applications Additive manufacturing has significantly advanced patient-specific medical devices, particularly for hard tissue repair, yet applications in soft tissue remain limited. Existing approaches for 3D-printed soft tissue devices employ mainly biogels and bioinks for regenerative purposes, while synthetic grafts for tendons and ligaments remain non-customizable in shape and mechanics. This study investigates the mechanical performance of 3D-printed thermoplastic polyurethane (TPU) elastomers as a function of printing parameters, informing customizable connective tissue graft designs. Type C dogbone specimens (<i>n</i> = 180) of three replicates each of parameter combinations from material shore hardness, presence of anchoring within the lattice, infill patterns, and infill density were printed and tested following modified ASTM D412 standards for vulcanized rubber and elastomers. The measured mechanical properties are elastic modulus, tensile yield stress, yield strain, ultimate tensile strength, and ultimate strain. Results show that shore hardness and infill density are the strongest predictors of mechanical properties, with positive but modest effects from anchor presence. Infill pattern is only significant through interactions, and its effects depend on other parameters. While all groups underperformed compared to manufacturer-reported TPU strengths and were well below in vitro tendon failure loads, findings highlight material selection and density optimization as critical early considerations for future patient-specific elastomeric graft design. Shore durometer ; Ultimate tensile strength ; Elastomer ; Infill ; Tendon ; Vulcanization ; Thermoplastic elastomer ; Soft tissue Electrospun Nanofibers in Biomedical Applications ; Bone Tissue Engineering Materials ; 3D Printing in Biomedical Research
Authors: Ashvini Trambak Varungase | Nirmala Shinde
Source: Oriental Journal Of Chemistry (article, 2025-06-25)
Field: Chemistry — Analytical Chemistry

Advanced LC-MS/MS Analysis for Concurrent Quantification of Metoprolol Succinate and Hydrochlorothiazide in Human Plasma A sensitive and selective liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS) method was developed and validated for the simultaneous quantification of metoprolol succinate (MPL) and hydrochlorothiazide (HCTZ) in human plasma. Sample preparation involved a simple liquid-liquid extraction procedure using dichloromethane:tert-butyl ether (85:15% v/v). Chromatographic separation was achieved on an ACE column using a mobile phase consisting of methanol and water with 0.1% formic acid (70:30, v/v). The analytes were detected using electrospray ionization in negative ion mode and quantified using multiple reaction monitoring. MPL D4 and HCTZ 13C15N2 D2 were used as internal standards. The method was validated over concentration ranges of 10-5000 ng/mL for MPL and 1-500 ng/mL for HCTZ. The intra- and inter-day precision and accuracy were within acceptable limits. The method demonstrated excellent selectivity, recovery, and stability. Matrix effects were minimal, and no significant ion suppression or enhancement was observed. The validated method was successfully applied to a pharmacokinetic study in human subjects. The proposed LC-MS/MS method offers a rapid, sensitive, and reliable approach for the simultaneous determination of MPL and HCTZ in human plasma, suitable for clinical pharmacokinetic studies and therapeutic drug monitoring. Hydrochlorothiazide ; Elsevier Biobase ; Chemistry ; Material chemistry ; Metoprolol ; Industrial chemistry ; Bioanalysis ; Chromatography ; GEOBASE ; Pharmacology ; Green chemistry ; Internal medicine ; Supramolecular chemistry ; Organic chemistry ; Biochemical engineering ; Medicine ; Blood pressure Analytical Methods in Pharmaceuticals ; Antibiotics Pharmacokinetics and Efficacy ; Pesticide Residue Analysis and Safety
Authors: Gábor Kórösi | László Tóth
Source: Acta Materialia Transylvanica (article, 2025-01-01)
Field: Materials Science — Materials Chemistry

Effect of Cryogenic Treatment on the Wear and Corrosion Resistance of the ELMAX tool Steel In our research, we investigated how the wear and corrosion resistance properties of ELMAX tool steel change during cryogenic treatment. The tool steel was heat treated in two different ways: con-ventionally, and using cryogenic treatment. From the two differently heat treated workpieces, 3 spe-cimens each were subjected to wear and corrosion tests. Based on the obtained results, it can be sta-ted that both the wear resistance and corrosion resistance improved as a result of the cryogenic tre-atment. These properties can clearly determine the usability of the material in many applications. Cryogenic treatment ; Corrosion ; Tool steel ; Wear resistance ; Cryogenic temperature ; Heat resistance Metal Alloys Wear and Properties ; Mechanical stress and fatigue analysis ; Metal and Thin Film Mechanics