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Results in materials 2025年 26卷

作者： Yap, Siew Hong Awang Kechik, Mohd Mustafa Humaidi, Syahrul Mohd Shariff, Khairul Khaizi Baqiah, Hussien Chen, Soo Kien Lim, Kean Pah Mohd Zaid, Mohd Hafiz Yaakob, Yazid Abdul Karim, Mohd Khalis Talib, Zainal Abidin Loh, Zhi Wei Kamarudin, Aliah Nursyahirah Shaari, Abdul Halim Miryala, Muralidhar Superconductor & Thin Films Laboratory Department of Physics Faculty of Science Universiti Putra Malaysia UPM Serdang Selangor Darul Ehsan 43400 Malaysia Postgraduate Program (Physics) FMIPA Universitas Sumatera Utara Medan 20222 Indonesia Microwave Research Institute Universiti Teknologi MARA Selangor Shah Alam 40450 Malaysia Shandong Key Laboratory of Biophysics Institute of Biophysics Dezhou University No. 566 University Rd. West Shandong Dezhou China Department of Physics College of Natural Sciences Jeonbuk National University 567 Baekjedaero Deokjingu Jeollabukdo Jeonjusi 54896 South Korea Materials for Energy and Environmental Laboratory Superconducting Materials Group of Science & Engineering Shibaura Institute of Technology 3-7-5 Foxesu Koto-ku Tokyo 135-8548 Japan

For several decades now, the emergence and production of high-quality bulk rare-earth-based superconductors, particularly YBa2Cu3O7-δ (YBCO/Y-123), have been noteworthy advancements with potential implications in var... 详细信息

For several decades now, the emergence and production of high-quality bulk rare-earth-based superconductors, particularly YBa₂Cu₃O_7-δ (YBCO/Y-123), have been noteworthy advancements with potential implications in various fields. This unique research investigated the potential of using chicken eggshells as a source of calcium compounds (CaO, CaCO₃ and Ca(OH)₂) for the synthesis of YBCO. The green approach synthesis of YBCO added with Ca-compounds (0.0100 wt% ≤ x ≤ 0.6000 wt%) was conducted in a systematic manner via thermal treatment method. The crystal structure, surface morphology, and chemical composition of the specimens were characterized by X-ray diffraction (XRD), Field Emission Scanning Electron Microscope (FESEM), and Energy Dispersive X-Ray Spectroscopy (EDX). The results showed the formation of orthorhombic Y-123 phase, Pmmm space group with the high-intensity peaks of Y-123. The addition of Ca-compounds proposed a different trend of grain degradations in the YBCO matrix system with the appearance of Ca-compounds' impurity phases. The superconducting properties such as electrical resistivity analyzed using electrical resistance measurement. Surprisingly, the superconducting parameters improved after Ca-compounds were added into the YBCO system. The hole concentration, p reached the highest value among all the specimens with the lowest superconducting transition width, ∼ΔT_c = 3.805 K (T_c-onset = 93.223 K and T_{c(R = 0)} = 89.418 K) for the lowest concentration of Ca-compounds i.e., 0.0375 wt%. This great finding targeted the green approach impurity materials into YBCO system that can usefully enhance the superconducting properties at high temperature which covers the idea of addition with deficient concentration Ca-compounds. © 2025

关键词： Ca-compounds Critical temperature Grains degradations Hole concentration Superconducting transition width

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Third-order optical properties of Ag nanocubes and Ag@Au hollow nanostructures investigated by femtosecond Z-Scan measurements

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Optik 2025年

作者： Claudevan A. Sousa Antonio F.A.A. Melo Nefe J.B. Silva Tânia Patrícia Silva e Silva Bartolomeu C. Viana Francisco Eroni P. Santos Hans Garcia Department of Physics UFPI - Universidade Federal do Piauí 64049-550 Teresina PI Brazil Materials Engineering Graduate Program Federal Institute of Education Science and Technology of Piauí Central Campus Teresina 64000-040 PI Brazil Interdisciplinary Laboratory for Advanced Materials BioMatLab group Materials Science & Engineering Graduate Program UFPI - Universidade Federal do Piauí 64049-550 Teresina PI Brazil

We present a comprehensive study on the third-order nonlinear optical properties of silver nanocubes (Ag-NCs) and Ag@Au hollow bimetallic nanostructures in aqueous dispersions. The Ag@Au bimetallic nanostructures were synthesized by galvanic replacement of Ag-NCs with gold, generating nanoboxes with surface plasmon resonance (SPR) tunability. Using the femtosecond Z-scan technique (1040 nm, 357 fs) across laser intensities from 99.7 to 279 GW/cm², we identified negative nonlinear refraction in both Ag-NCs and Ag@Au nanoboxes, attributed to hot electron generation. Saturable absorption (SA) was observed only in Ag@Au nanoboxes, distinguishing their potential for nonlinear photonic applications. These findings highlight the impact of morphology and composition on nonlinear refraction and absorption, positioning Ag@Au hollow nanostructures as promising candidates for active media in advanced photonic devices.

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Entropy-modulated and interlayer-doped transition metal layered oxides enable high-energy-density sodium-ion capacitors

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Nano Research 2024年第10期17卷 8785-8793页

作者： Tiansheng Wang Yadong Li Zhengyuan Chen Qingshan Liu Jian Lang Langyuan Wu Wendi Dong Zhengyu Ju Hongsen Li Xiaogang Zhang Guihua Yu College of Physics Qingdao UniversityQingdao 266071China Jiangsu Key Laboratory of Materials and Technologies for Energy Storage College of Materials Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjing 210016China Materials Science and Engineering Program and Walker Department of Mechanical Engineering The University of Texas at AustinAustin 78712USA

In recent years,sodium-ion capacitors have attracted attention due to their cost-effectiveness,high power density and similar manufacturing process to lithium-ion ***,the utilization of oxide electrodes in traditional sodium-ion capacitors restricts their further advancement due to the inherent low operating voltage and electrolyte consumption based on their energy storage *** address these challenges,we incorporated Zn,Cu,Ti,and other elements into Na_(0.67)Ni_(0.33)Mn_(0.67)O_(2) to synthesize P2-type Na_(0.7)Ni_(0.28)Mn_(0.6)Zn_(0.05)Cu_(0.02)Ti_(0.05)O_(2) with a modulated entropy and pillaring *** the synergistic interplay between the interlayer pillar and the entropy modulation within the layers,the material exhibits exceptional toughness,effectively shielding it from detrimental phase transitions at elevated voltage *** a result,the material showcases outstanding kinetic properties and long-term cycling stability across the voltage *** integrating these materials with hierarchical porous carbon nanospheres to form a"rocking chair"sodium-ion capacitor,the hybrid full device delivers a high energy density(171 Wh·kg^(-1))and high power density(5245 W·kg^(-1)),as well as outstanding cycling stability(77% capacity retention after 3000 cycles).This work provides an effective material development route to realize simultaneously high energy and power for next-generation sodium-ion capacitors.

关键词： sodium-ion capacitors entropy modulation high power density long-term cycling layered oxide

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Single-Molecule Vibrational Characterization of Binding Geometry Effects on Isocyanide-Metal Interactions

arXiv

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arXiv 2025年

作者： Bi, Liya Wang, Zhe Balto, Krista Tao, Andrea R. Pascal, Tod A. Zhang, Yanning Figueroa, Joshua S. Li, Shaowei Department of Chemistry and Biochemistry University of California La Jolla San DiegoCA92093-0309 United States Program in Materials Science and Engineering University of California La Jolla San DiegoCA92093-0418 United States Department of Physics and Astronomy University of California IrvineCA92697-4575 United States Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Chengdu611731 China Aiiso Yufeng Li Family Department of Chemical and Nano Engineering University of California La Jolla San DiegoCA92093-0448 United States

Isocyanide-metal binding is governed by σ-donation and π-back-bonding, which affects the energy of the isocyanide stretching mode—a characteristic probe for ligand-metal interactions. While extensive correlations exist between structure and spectroscopy in molecular isocyanide-metal systems, isocyanide interactions with metallic crystalline surfaces, where ligands often bind in various geometries, remain poorly understood. Conventional vibrational spectroscopies, such as infrared and Raman, lack the molecular-scale resolution needed to distinguish these inhomogeneous configurations. In contrast, inelastic electron tunneling spectroscopy with scanning tunneling microscopy (STM-IETS) enables direct visualization of ligand adsorption geometries and their vibrational signatures. Using STM-IETS, here we investigate an metal-adsorbed m-terphenyl isocyanide ligand and find that adsorption geometry on Cu(100) induces a significant shift in isocyanide stretching frequency, even greater than replacing Cu(100) with Ag(111). Density functional theory confirms this shift arises from atomic-scale variations in isocyanide-metal binding. This study elucidates how atomic-scale binding influences the vibrational signatures of isocyanide ligands—an often-overlooked factor in understanding isocyanide-metal interactions. © 2025, CC BY.

关键词： Vibrational spectroscopy

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PVA-based bioinks for 3D bioprinting: A comprehensive review of their applications in tissue engineering

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Bioprinting 2025年 49卷

作者： Narges Johari Zary Adabavazeh Francesco Baino Materials Engineering Group Golpayegan College of Engineering Isfahan University of Technology Golpayegan Iran Ph.D. Program Graduate Institute of Precision Manufacturing National Chin-Yi University of Technology Taichung Taiwan ROC Institute of Materials Physics and Engineering Department of Applied Science and Technology Politecnico di Torino Torino Italy

3D bioprinting is an innovative approach that overcomes the limitations of traditional methods for creating cell-laden biomaterials and constructs. It allows for the fabrication of complex and biologically active tissue structures. This review aims to provide a comprehensive evaluation of polyvinyl alcohol (PVA)-based bioinks within a 3D bioprinting framework. PVA-based bioinks exhibit remarkable properties, such as biocompatibility, biodegradability, and the ability to enhance cell growth and differentiation. These properties make them appropriate for many tissue engineering applications. The study evaluates the physicochemical and biological properties of PVA bioinks, including how they combine with other materials such as gelatin, chitin, chitosan, alginate, agarose, cellulose, κ-carrageenan, methacrylate, nanoparticles, mineral additives, carbon nanotubes, graphene oxide, and extracellular matrix components. Furthermore, this review evaluates the benefits of market availability and enhanced printing resolution, in addition to the challenges posed by complexity, dependency on support baths, and the risk of contamination. The objective of this review is to draw attention to the capabilities of PVA-based bioinks and provide guidelines for future research to improve the effectiveness of these materials in tissue engineering and regenerative medicine.

关键词： Bioprinting Bioink Polyvinyl alcohol PVA-based bioinks

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Form Factor–Free Magneto-Triboelectric Generator for Standalone Power Line IoT Applications

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Advanced Energy materials 2025年

作者： Kim, Hyun Soo Lee, Min Hyuk Kim, Do-Heon Lee, Dong-Gyu Imani, Iman M. Hur, SungHoon Ko, Young Joon Choi, Yeong Uk Cho, Hyunah Song, So-Min Yoon, Tae Kyoung Oh, In Woo Jung, Jong Hoon Chen, Jun Kim, Yunseok Kang, Heemin Ryu, Jungho Baik, Jeong Min Song, Hyun-Cheol Seoul02792 Korea Republic of School of Electrical Engineering Korea University Seoul02841 Korea Republic of Suwon16419 Korea Republic of Department of Materials Science and Engineering Korea University Seoul02841 Korea Republic of Division of Energy & Environment Technology University of Science and Technology Seoul02792 Korea Republic of Suwon16419 Korea Republic of Department of Physics Inha University Incheon22212 Korea Republic of Department of Mechanical Engineering Korea University Seoul02841 Korea Republic of Department of Bioengineering University of California Los Angeles Los AngelesCA90095 United States Research Center for Advanced Materials Technology Core Research Institute Suwon16419 Korea Republic of School of Materials Science & Engineering Yeungnam University Gyeongsan38541 Korea Republic of Program in Semiconductor Convergence Inha University Incheon22212 Korea Republic of Department of Future Convergence Materials Korea University Seoul02841 Korea Republic of College of Medicine Korea University Seoul02841 Korea Republic of Sungkyunkwan University Suwon16419 Korea Republic of

The growing reliance on electronic devices has made ambient magnetic field harvesting a promising solution for powering low-power, small-scale technologies, such as those used in the Internet of Things (IoT). While metal alloy-based magneto-deformation materials have traditionally been used to capture energy from stray magnetic fields, they are costly and lack versatility. To advance magnetic field harvesting, it is essential to develop cost-effective, high-performance, and adaptable magneto-deformation materials. Incorporating ferromagnetic metal powders into polymers can induce magneto-rheological behavior. This quasi-solid magneto-rheological effect enables the generation of mechanical vibrations in response to an oscillating external magnetic field. Here, a functional composite film is presented that achieves efficient and straightforward magneto-deformation by integrating Fe powder with poly(vinylidene fluoride-trifluoroethylene). To further enhance the performance of the composite film, MoS2–SiO2 core–shell nanoparticles is exploited for improved charge trapping and employ ferroelectrics to increase the contact potential difference (CPD). The composite film shows a bending displacement of 1 mm in a 4 Oe magnetic field, with each magneto-triboelectric module generating 14.28 mW. The four fabricated modules successfully harvest real-time energy from the stray magnetic field of an electric pot, enabling a battery-free Bluetooth IoT sensor. © 2025 The Author(s). Advanced Energy materials published by Wiley-VCH GmbH.

关键词： Magnetoresistance

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Influence of Al doping on the crystal structure,optical properties,and photodetecting performance of ZnO film

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Progress in Natural Science:materials International 2020年第1期30卷 28-34页

作者： Ni'matul Azizah Shibghatullah Muhammady Muhammad Abiyyu Kenichi Purbayanto Eka Nurfani Toto Winata Euis Sustini Rena Widita Yudi Darma Department of Physics Faculty of Mathematics and Natural SciencesInstitut Teknologi Bandung Materials Engineering Program Institut Teknologi SumateraTerusan RyacuduWay HuiJati Agung

The structural,optical,and electrical properties of undoped and Al-doped ZnO films deposited on p-Si(001)substrate were studied using DC-unbalanced magnetron *** study is motivated by the absence of detail reports concerning the orbital states inducing the optical bandgap(Eg) ***,the influences of Al on the possible modification of point defect and the photodetecting performance are highlighted to offer guidelines for better development in ZnO-based *** was found that the Al doping reduced the grain *** doping increased the lattice parameters and slightly decreased the local-symmetry distortion at *** the absorbance spectra,the doping increased Eg of ZnO film(3.28-3.36 eV),induced by the Burstein-Moss *** the density-functional calculation,the Burstein-Moss effect induced Egfrom the valence band maximum(VBM) to Fermi level located above the lowest Zn 4s conduction *** the photoluminescence spectra,the undoped film showed the transitions from O vacancy,Zn interstitial,and free-exciton states to the *** doped film showed the transitions from Zn interstitial to O interstitial and few Zn vacancy states at the cost of O ***,the energy level of free-exciton states slightly ***,O interstitials increased the lattice *** the electrical properties,the doping enhanced the ultraviolet-region photo-to-dark-current ratio up to 3.044 V,leading to the photodetecting sensitivity *** study emphasizes the significant effect of Al doping on the optical absorbance,point-defect evolution,and photodetecting performance of ZnO film for low-voltage ultraviolet photodetector applications.

关键词： ZnO Optical properties Point defect Photodetecting Local-symmetry distortion

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Conditional Generative Modeling for Amorphous Multi-Element materials

arXiv

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arXiv 2025年

作者： Li, Honglin Liu, Chuhao Guo, Yongfeng Luo, Xiaoshan Chen, Yijie Liu, Guangsheng Li, Yu Wang, Ruoyu Wang, Zhenyu Wu, Jianzhuo Ma, Cheng Xie, Zhuohang Lv, Jian Ding, Yufei Zhang, Huabin Luo, Jian Zhong, Zhicheng Li, Mufan Wang, Yanchao Li, Wan-Lu Key Laboratory of Material Simulation Methods and Software Ministry of Education College of Physics Jilin University Changchun China Aiiso Yufeng Li Family Department of Chemical and Nano Engineering University of California La Jolla San DiegoCA United States Institute of Molecular Engineering Plus College of Chemistry Fuzhou University Fuzhou China College of Chemistry and Molecular Engineering Peking University Beijing China School of Physics Nankai University Tianjin China Institute of Modern Physics Fudan University Shanghai China Program in Materials Science and Engineering University of California La Jolla San DiegoCA United States School of Artificial Intelligence and Data Science University of Science and Technology of China Hefei230026 China Suzhou Institute for Advanced Research University of Science and Technology of China Suzhou215123 China International Center of Future Science Jilin University Changchun China Department of Computer Science and Engineering University of California La Jolla San DiegoCA United States Center for Renewable Energy and Storage Technologies Physical Science and Engineering Division King Abdullah University of Science and Technology Thuwal Saudi Arabia Suzhou Lab Suzhou215123 China

Amorphous multi-element materials offer unprecedented tunability in composition and properties, yet their rational design remains challenging due to the lack of predictive structure-property relationships and the vast configurational space. Traditional modeling struggles to capture the intricate short-range order that dictates their stability and functionality. We here introduce ApolloX, a pioneering predictive framework for amorphous multi-element materials, establishing a new paradigm by integrating physics-informed generative modeling with particle swarm optimization, using chemical short-range order as an explicit constraint. By systematically navigating the disordered energy landscape, ApolloX enables the targeted design of thermodynamically stable amorphous configurations. It accurately predicts atomic-scale arrangements, including composition-driven metal clustering and amorphization trends, which are well-validated by experiments, while also guiding synthesis by leveraging sluggish diffusion to control elemental distribution and disorder. The resulting structural evolution, governed by composition, directly impacts catalytic performance, leading to improved activity and stability with increasing amorphization. This predictive-experimental synergy transforms the discovery of amorphous materials, unlocking new frontiers in catalysis, energy storage, and functional disordered systems. Copyright © 2025, The Authors. All rights reserved.

关键词： Amorphization

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Controlling the selection stringency of phage display using a microfluidic device (vol 9, pg 1033, 2009)

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LAB ON A CHIP 2009年第24期9卷 3604-3604页

作者： Liu, Yanli Adams, Jonathan D. Turner, Kelisha Cochran, Frank V. Gambhir, Sanjiv Sam Soh, H. Tom Neuroscience Research Institute Department of Materials Department of Physics School of Science and Technology Molecular Imaging Program at Stanford Department of Mechanical Engineering

We report the utilization of microfluidic technology to phage selection and demonstrate that accurate control of washing stringency in our microfluidic magnetic separator (MMS) directly impacts the diversity of isolated peptide sequences. Reproducible generation of magnetic and fluidic forces allows controlled washing conditions that enable rapid convergence of selected peptide sequences. These findings may provide a foundation for the development of automated microsystems for rapid in vitrodirected evolution of affinity reagents. [ABSTRACT FROM AUTHOR]

关键词： Magnetic separators accuracy control Affinity Reagent Phage display Peptides directed evolution Magnetic force Microfluidics Microfluidic Devices Washing

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Tunable Circularly Polarized Luminescent Supramolecular Systems: Approaches and Applications

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CHEMPHOTOCHEM 2022年第3期6卷

作者： Chen, Xu-Man Zhang, Shu Chen, Xiao Li, Quan Institute of Advanced Materials and School of Chemistry and Chemical Engineering Southeast University Nanjing 211189 China Advanced Materials and Liquid Crystal Institute and Chemical Physics Interdisciplinary Program Kent State University Kent OH 44242 USA

The front cover artwork is provided by Xu-Man Chen et al., Institute of Advanced materials and School of Chemistry and Chemical engineering, Southeast University. The image shows left and right hands manipulating the supramolecular building blocks to control the emission color, intensity and chirality of circularly polarized luminescent materials. Read the full text of the Review at 10.1002/cptc.202100256 .

关键词： circularly polarized luminescence charge transfer chirality helical structure supramolecular chemistry stimuli-responsive

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