jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Rosa Corrêa Leoncio de Sá | Tarcísio Leão | Evandro Drigo da Silva | Graça Lopes | Breno Yuzo Tachibana Nishida | J. Sobrinho | Marco Antonio Ramirez-Ramos | João Roberto Moro | E.J. Corat | Vladimir Jesús Trava-Airoldi | Eduardo Bock
Source: Revista Brasileira de Aplicações de Vácuo (article, 2025-12-18)
Field: Materials Science — Materials Chemistry

DIAMOND-LIKE CARBON IN VENTRICULAR ASSIST DEVICES: HISTORY, TECHNIQUES, APPLICATIONS, AND HEMOCOMPATIBILI&lt;i&gt;TY&lt;/i&gt; Diamond-like carbon (DLC) coatings have become a prominent strategy to enhance the performance and hemocompatibility of ventricular assist devices (VADs). This review presents a comprehensive overview of the historical development of DLC coatings for VADs, the main DLC deposition techniques, types of blood pumps, substrate materials, and specific applications in VADs. DLC coatings, deposited via methods such as plasma-enhanced chemical vapor deposition, offer high hardness, chemical inertness, excellent wear resistance, and hemocompatibility, making them suitable for blood-contacting components in continuousflow centrifugal pumps and continuous axial-flow pumps. The ability to apply DLC to various substrates, including metals and polymers, further broadens its biomedical utility. Comparative analysis with other hemocompatible coatings, such as heparin, titanium nitride, and 2-methacryloyloxyethyl phosphorylcholine polymers, demonstrates that DLC provides a unique balance of durability and blood compatibility, although challenges remain regarding long-term adhesion and stability. Advances in doped and nanostructured DLC films continue to improve antimicrobial and antithrombotic properties. Overall, DLC coatings represent a significant advancement in the quest for safer, longer-lasting VADs, but further research is needed to optimize their clinical performance and address remaining limitations. Carbon fibers ; Diamond-like carbon ; Durability ; Substrate (aquarium) ; Chemical vapor deposition ; Deposition (geology) ; Human blood Diamond and Carbon-based Materials Research ; Mechanical Circulatory Support Devices ; Boron and Carbon Nanomaterials Research
Authors: Guobao Yan | Yi Hu | Mingxing Liu | Fawei Huang | Jinghua Miu | Guoyuan Huang
Source: Coatings (article, 2025-12-26)
Field: Materials Science — Biomaterials

Application of Electrospun Nanofiber Membranes in Outdoor Sportswear: From Preparation Technologies to Multifunctional Integration Outdoor sportswear increasingly demands multifunctional performance, including waterproofness, breathability, and intelligent thermal regulation. Nanofiber membranes, especially those prepared via electrospinning, offer a promising platform due to their tunable pore structures, high specific surface area, and ease of functionalization. This review outlines progress from fabrication to multifunctional integration, highlighting key quantitative advances: electrospun membranes achieve water vapor transmission rates &gt;10,000 g·m−2·day−1 with hydrostatic pressure resistance of 80–150 kPa, and thermal conductivity as low as 0.033–0.040 W·m−1·K−1. We analyze how structural designs enable tailored functionalities for diverse outdoor scenarios. The review’s key contributions include establishing a clear “process-structure-function” framework, critically comparing nanofiber membranes with conventional materials, and identifying industrialization challenges—scalability, durability, cost—while pointing toward smart, sustainable, and customizable future directions. Nanofiber ; Membrane ; Hydrostatic pressure ; Fabrication ; Electrospinning Electrospun Nanofibers in Biomedical Applications ; Advanced Sensor and Energy Harvesting Materials ; Solar-Powered Water Purification Methods
Authors: HuaLei Zhang | Junjun Ma | Zheng Liu
Source: Angewandte Chemie International Edition (article, 2025-12-26)
Field: Materials Science — Materials Chemistry

Facile Introduction of Quantum Confinement in Linear Conjugated Polymers for Photocatalytic Hydrogen Evolution While the structurally tunable nature of Linear conjugated polymers (Linear CPs) offers promising opportunities for advancing photocatalysts, their current fabrication methods predominantly yield particles or bulk materials, significantly hindering the full exploitation of their catalytic potential. In this study, we demonstrate that the inherent entangled state of Linear CPs can be retained before bulk formation, leading to enhanced catalytic performance. Without exfoliation or modified synthesis, the entangled Linear CPs displayed a quantum confinement effect, leading to blue-shifted absorption and emission along with improved carrier separation efficiency. The entangled P28-E exhibits a photocatalytic hydrogen evolution rates (HERs) of 42.8 mmol h<sup>-1</sup> g<sup>-1</sup>, which is 28 times higher than that of its bulk counterpart (P28-S). A notable trend was observed in the HERs. A notable order shift occurred from P28-S < TpPz-COF, PBT-S, P7-S in the bulk to P28-E > TpPz-COF, PBT-E, P7-E in the entangled state. This work not only presents an effective approach toward efficient photocatalytic water splitting, but also provides new insights into exploring potential microscopic features of Linear CPs. Conjugated system ; Exfoliation joint ; Quantum dot ; Quantum yield ; Polymer ; Photocatalysis ; Catalysis ; Absorption (acoustics) Covalent Organic Framework Applications ; Advanced Photocatalysis Techniques ; Organic Electronics and Photovoltaics
Authors: Khairul Anwar | Mahidin | ICHWANA RAMLI | Muhammad Faisal | Hera Desvita | Yeni R. Wulandari | Muhammad Zahiruddin Ramli
Source: International Journal of Design & Nature and Ecodynamics (article, 2025-12-31)
Field: Chemistry — Inorganic Chemistry

Waste to a Value-Added Material: Production of Biochar from Young Coconut Waste Young coconut waste (YCW) holds considerable potential as a lignocellulosic biomass feedstock for sustainable biochar production.Indonesia has substantial potential for utilizing young coconut biomass waste, yet its use to date remains largely confined to small-scale and specific applications.This study aims to investigate the thermal decomposition behavior, functional group transformations, surface characteristics, and adsorption potential of biochar derived from YCW through pyrolysis at 300, 350, and 400, temperatures selected to capture the transition between initial devolatilization and the onset of aromatic structure formation.TG-DTG analysis was conducted to assess thermal stability within the temperature range of 25-700 at heating rates of 10, 15, and 20/min, while FTIR spectroscopy and nitrogen adsorption-desorption isotherms were employed to characterize chemical functional groups and SBET, respectively.TG-DTG curves showed that the heating rate significantly affected the thermal stability of YCW, with a heating rate of 10/min resulting in more controlled decomposition and a higher biochar yield.FTIR spectroscopy analysis indicated the degradation of C=O, -OH, and C-H groups, along with the formation of aromatic C=C bonds, particularly at 350.Biochar produced at 350 exhibited the most favorable pore development and surface chemistry.The highest BET surface area was recorded for YCW350 (1.298 m /g), followed by YCW300 (1.266 m /g), with a substantial decrease observed for YCW400 (0.127 m /g) due to pore collapse.These findings provide an initial physicochemical characterization of YCW biochar, with enhanced thermal stability and chemical reactivity, offering potential applications in energy systems and agricultural waste utilization. Biochar ; Production (economics) ; Animal waste ; Waste recycling ; Waste material ; Waste treatment Coconut Research and Applications ; Thermochemical Biomass Conversion Processes ; Municipal Solid Waste Management
Authors: Nikita Fateev | Klim Velmozhin | Andrey Danilkin | A. L. Kotyukova | Tatiana A. Yasneva | Mikhail Ivanov | G. G. Kagramanov
Source: Membrane Science International (article, 2025-08-29)
Field: Materials Science — Materials Chemistry

Enhanced Filtration Performance of Hollow Fiber PVDF Membranes with Selective Pore Size Control via Modified NIPS Method The production of PVDF hollow fiber membranes via the non-solvent induced phase separation (NIPS) method is one of the most straightforward and cost-effective techniques. However, conventional NIPS processes often struggle to achieve a narrow pore size distribution, limiting their performance in precision ultrafiltration applications. In this work, we present an enhanced NIPS approach that enables fine control over the membrane's limiting pore size. By carefully tuning the composition of the spinning solution and optimizing processing parameters, we achieved precise regulation of membrane structure. The resulting membranes exhibited a wide range of well-defined limiting pore sizes—from 80 nm, offering high water permeability (960 L·m−2·h−1·bar−1), down to 10 nm with lower permeability (68 L·m−2·h−1·bar−1). These findings demonstrate the versatility and tunability of the modified NIPS method, enabling the fabrication of PVDF membranes tailored for specific ultrafiltration applications. Membrane ; Filtration (mathematics) ; Materials science ; Fiber ; Chemical engineering ; Composite material ; Chemistry ; Mathematics ; Engineering High voltage insulation and dielectric phenomena ; Membrane Separation Technologies
Authors: Xiao Tong | Yu Liu | Xiangde Zhu | Hechang Lei | C. Petrović
Source: Nanomaterials (review, 2025-05-14)
Field: Materials Science — Materials Chemistry

Electrical Transport Interplay with Charge Density Waves, Magnetization, and Disorder Tuned by 2D van der Waals Interface Modification via Elemental Intercalation and Substitution in ZrTe3, 2H-TaS2, and Cr2Si2Te6 Crystals Electrical transport in 2D materials exhibits unique behaviors due to reduced dimensionality, broken symmetries, and quantum confinement. It serves as both a sensitive probe for the emergence of coherent electronic phases and a tool to actively manipulate many-body correlated states. Exploring their interplay and interdependence is crucial but remains underexplored. This review integratively cross-examines the atomic and electronic structures and transport properties of van der Waals-layered crystals ZrTe<sub>3</sub>, 2H-TaS<sub>2</sub>, and Cr<sub>2</sub>Si<sub>2</sub>Te<sub>6</sub>, providing a comprehensive understanding and uncovering new discoveries and insights. A common observation from these crystals is that modifying the atomic and electronic interface structures of 2D van der Waals interfaces using heteroatoms significantly influences the emergence and stability of coherent phases, as well as phase-sensitive transport responses. In ZrTe<sub>3</sub>, substitution and intercalation with Se, Hf, Cu, or Ni at the 2D vdW interface alter phonon-electron coupling, valence states, and the quasi-1D interface Fermi band, affecting the onset of CDW and SC, manifested as resistance upturns and zero-resistance states. We conclude here that these phenomena originate from dopant-induced variations in the lattice spacing of the quasi-1D Te chains of the 2D vdW interface, and propose an unconventional superconducting mechanism driven by valence fluctuations at the van Hove singularity, arising from quasi-1D lattice vibrations. Short-range in-plane electronic heterostructures at the vdW interface of Cr<sub>2</sub>Si<sub>2</sub>Te<sub>6</sub> result in a narrowed band gap. The sharp increase in in-plane resistance is found to be linked to the emergence and development of out-of-plane ferromagnetism. The insertion of 2D magnetic layers such as Mn, Fe, and Co into the vdW gap of 2H-TaS<sub>2</sub> induces anisotropic magnetism and associated transport responses to magnetic transitions. Overall, 2D vdW interface modification offers control over collective electronic behavior, transport properties, and their interplays, advancing fundamental science and nanoelectronic devices. van der Waals force ; Intercalation (chemistry) ; Materials science ; Condensed matter physics ; Charge (physics) ; Substitution (logic) ; Magnetization ; Density functional theory ; Charge density ; Chemical physics ; Computational chemistry ; Chemistry ; Molecule ; Magnetic field ; Physics ; Inorganic chemistry 2D Materials and Applications ; MXene and MAX Phase Materials ; Perovskite Materials and Applications
Authors: Rafeef Abdul-jabar | Enas A. Bady | Sabaa Al.Fadal | Qutaiba A. Qasim
Source: Tropical Journal of Pharmaceutical Research (article, 2025-12-04)
Field: Materials Science — Materials Chemistry

Green synthesis of zinc oxide nanoparticles using &lt;i&gt;Candida tropicalis&lt;/i&gt; Purpose: To determine the properties of green-synthesized zinc oxide (ZnO) nanoparticles (NPs) prepared using Candida tropicalis and evaluate their bioactivity. Methods: All the bacterial and yeast isolates obtained from soil samples were identified microscopically and genetically. Candida tropicalis was chosen as a yeast strain capable of zinc oxide (ZnO) nanoparticle formation. A biosynthesis method was developed utilizing Candida tropicalis, isolated and named H-406, for the production of spherical ZnO nanoparticles. The nanoparticles were characterized using scanning electron microscopy (SEM), zeta sizer, ultraviolet-visible (UV) spectroscopy, and Fourier transform infrared spectroscopy. Antimicrobial activities of ZnO NPs were also assessed using the agar well diffusion method. Results: The soil samples yielded successful recoveries of eight bacterial isolates and two yeast isolates. These particles had a peak UV absorbance at 354 nm and exhibited a peak at 546.9 cm⁻¹, which indicates a bond in the composition and stability of the particles that was confirmed as ZnO nanoparticles. The nanoparticles tested demonstrated a positive antibacterial activity against Staphylococcus aureus, Escherichia coli and Candida albicans. Conclusions: These results demonstrate that a soil-derived strain of Candida tropicalis, which was isolated, has the potential for green ZnO nanoparticle synthesis. Candida tropicalis ; Zinc ; Absorbance ; Zeta potential ; Nanoparticle ; Yeast ; Fourier transform infrared spectroscopy Nanoparticles: synthesis and applications ; ZnO doping and properties ; Magnesium Oxide Properties and Applications
Authors: Jiancheng Zheng | Xuchen Nie | Xiaoqiang Gao
Source: Low-Dimensional Materials (article, 2025-10-16)
Field: Materials Science — Materials Chemistry

Coherent Phonon Dynamics in 2D van der Waals Semiconductors Coherent phonon dynamics in two-dimensional (2D) van der Waals semiconductors represent an emergent frontier for controlling quantum states, energy transport, and optoelectronic functionalities through synchronized lattice vibrations. This comprehensive review synthesizes fundamental generation mechanisms, advanced ultrafast spectroscopy techniques, and material-specific manifestations across transition metal dichalcogenides (TMDs), magnetic semiconductors, perovskites, and related quantum materials. We establish how tailored phonon coherence enables unprecedented manipulation of electronic, optical, and spin states while highlighting persistent knowledge gaps and future research vectors for phonon-engineered quantum technologies. van der Waals force ; Phonon ; Coherence (philosophical gambling strategy) ; Quantum ; Semiconductor ; Ultrashort pulse ; Quantum decoherence ; Spectroscopy 2D Materials and Applications ; Thermal properties of materials ; Mechanical and Optical Resonators
Authors:  Rosa Corrêa Leoncio de Sá | Tarcísio Leão |  Evandro Drigo da Silva |  Guilherme Barbosa Lopes Júnior |  Breno Nishida |  José Ricardo Correa de Sousa Sobrinho | Marco Antonio Ramirez-Ramos | João Roberto Moro | E.J. Corat |  Vladimir Jesus Trava Airoldi | Eduardo Bock
Source: Biblioteca Digital da Memória Científica do INPE (National Institute for Space Research) (article, 2025-01-01)
Field: Materials Science — Materials Chemistry

Diamond-like carbon in ventricular assist devices: history, techniques, applications, and hemocompatibility Diamond-like carbon (DLC) coatings have become a prominent strategy to enhance the performance and hemocompatibility of ventricular assist devices (VADs). This review presents a comprehensive overview of the historical development of DLC coatings for VADs, the main DLC deposition techniques, types of blood pumps, substrate materials, and specific applications in VADs. DLC coatings, deposited via methods such as plasma-enhanced chemical vapor deposition, offer high hardness, chemical inertness, excellent wear resistance, and hemocompatibility, making them suitable for blood-contacting components in continuousflow centrifugal pumps and continuous axial-flow pumps. The ability to apply DLC to various substrates, including metals and polymers, further broadens its biomedical utility. Comparative analysis with other hemocompatible coatings, such as heparin, titanium nitride, and 2-methacryloyloxyethyl phosphorylcholine polymers, demonstrates that DLC provides a unique balance of durability and blood compatibility, although challenges remain regarding long-term adhesion and stability. Advances in doped and nanostructured DLC films continue to improve antimicrobial and antithrombotic properties. Overall, DLC coatings represent a significant advancement in the quest for safer, longer-lasting VADs, but further research is needed to optimize their clinical performance and address remaining limitations. Carbon fibers ; Diamond-like carbon ; Durability ; Substrate (aquarium) ; Human blood ; Chemical vapor deposition ; Biocompatible material Diamond and Carbon-based Materials Research ; Mechanical Circulatory Support Devices ; Polymer Surface Interaction Studies
Authors: Muhammad Tariq | R. Ahmed | Sofia Tahir | Bakhtiar Ul Haq | Faheem K. Butt | Muhammad Irfan Majeed | Arshad Hussain
Source: Journal of Ovonic Research (article, 2025-10-01)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Numerical analysis of data transfer parameters in transition metals doped multiferroic Bismuth ferrite (BiFeO₃, BFO) is a remarkable multiferroic material with excellent magnetoelectric switching properties. This study examines the effect of transition metal (X = Co, Ni, Mn, Ti) doping at the B-site of hexagonal-phase BFO on its spin-polarized electronic, structural, and magnetic properties for data transfer applications, using the generalized gradient approximation plus Hubbard U (GGA+U) method. All doped BFO systems in the hexagonal phase exhibit 100% spin polarization at the Fermi level, except for Ni-doped BFO. In Mn-doped BFO, atoms show an enhanced magnetic moment compared to pure and other doped BFO, indicating a localized impact of Mn on the magnetic structure. The data transfer parameters such as magnetoelectric coefficient and magnetic force per unit area of pure and doped BFO were examined numerically. Mndoped BFO exhibits an increase in magnetoelectric coefficient (α) and magnetic force per unit area (MBFO) values, with α reaching 2.46×10-9 s/m and MBFO increasing to 2.46 ×10-7 V·s/m². Besides this, Co-doped BFO shows moderately high values, with α of 2.30 ×10-9 s/m and a MBFO of 2.30 ×10-7 V·s/m². Multiferroics ; Magnetic moment ; Doping ; Polarization (electrochemistry) ; Fermi level ; Ferromagnetism ; Spin polarization ; Transition metal Multiferroics and related materials ; Ferroelectric and Piezoelectric Materials ; Material Science and Thermodynamics
Authors: Aleksandra Drozd-Rzoska | J. Łoś | Sylwester J. Rzoska
Source: Preprints.org (preprint, 2025-02-03)
Field: Materials Science — Materials Chemistry

The Impact of Nanoparticles on the Previtreous Behavior: Glass-Forming Nematogenic E7 Mixture-Based Nanocolloids The report discusses the impact of nanoparticles on the previtreous behavior of glass-forming systems. The presented studies were carried out via broadband dielectric spectroscopy (BDS) in nanocolloids composed of nematogenic liquid crystalline (LC) mixture E7 and paraelectric BaTiO3 nanoparticles. Tests started in the isotropic liquid phase, showing critical-like dielectric constant changes associated with prenematic fluctuations and weakly discontinuous isotropic–nematic phase transition. Subsequently, evolutions of the dielectric constant, two primary relaxation times (related to τ and α τ&amp;#039; processes), and DC electric conductivity are considered in the nematic phase, down to the glass temperature Tg. The prevalence of the portrayal via the ‘double exponential’ MYEGA equation is shown for dynamic properties. Monitoring of the dielectric constant revealed the exogenic impact of nanoparticles, leading to the permanent arrangement of rod-like LC molecules. For the primary loss curve, critical-like changes of its maximum (peak) are evidenced: peak&amp;#039;&amp;#039;∝1T-Tg* for Tg&amp;amp;lt;T&amp;amp;lt;Tg+25K, where Tg*&amp;amp;lt;Tg is the extrapolated singular temperature. Such behavior is shown for both pure E7 and nanocolloids. The heuristic model commenting on this unique behavior is presented. It recalls a hypothetical link between the glass transition and a hidden near-critical phase transition, avoiding a symmetry change. Nanoparticle ; Materials science ; Nanotechnology ; Chemical engineering ; Engineering Quantum Dots Synthesis And Properties ; Catalytic Processes in Materials Science ; Aerogels and thermal insulation
Authors: W X Cai | S Zhang | Xuan Wang | Dai‐Xu Wei | Zongcun Chen
Source: Journal of Polymer Science (article, 2025-09-25)
Field: Materials Science — Biomaterials

Functionalized Bacterial Cellulose for Medical Tissue Engineering ABSTRACT Functionalized materials derived from bacterial cellulose (BC) have demonstrated diverse applications across various fields. Recent advancements in the functionalization of BC have led to continuous innovations, encompassing both in situ and ex situ approaches. These methods include surface group modification, in situ nanoparticle growth, carbonization, as well as a range of biosynthetic and chemical modifications. Additionally, physical modification techniques such as freeze‐drying, hot pressing, vacuum filtration, and supercritical drying have been employed. Often, these methods are combined and further innovated to enhance the material's properties. This article begins by reviewing the structure and physical properties of BC, analyzing the principles underlying functional modification, and discussing the various methods of functionalization. It also highlights the key applications of functionalized BC in medical materials. Furthermore, this paper suggests new ideas and potential future research directions to further advance functional modifications. Bacterial cellulose ; Surface modification ; In situ ; Supercritical fluid ; Cellulose ; Medical device Advanced Cellulose Research Studies ; Electrospun Nanofibers in Biomedical Applications ; biodegradable polymer synthesis and properties