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New trends in 3D and 4D printed dental and orthopedic Implants: Methods, applications and future directions

Bioprinting 2025年 48卷

作者： Moghanian, Amirhossein Asadi, Parviz Akbari, Mostafa Mohammad Aliha, Mohammad Reza Kizilkurtlu, Ahmet Akif Akpek, Ali Safaee, Sirus Department of Materials Engineering Imam Khomeini International University Qazvin 34149-16818 Iran Department of Mechanical Engineering Faculty of Engineering Imam Khomeini International University Qazvin 34149-16818 Iran Department of Mechanical Engineering National University of Skills (NUS) Tehran Iran Welding and Joining Research Center School of Industrial Engineering Iran University of Science and Technology (IUST) Narmak Tehran 16846-13114 Iran Institute of Biotechnology Gebze Technical University Gebze Kocaeli Turkey Department of Biomedical Engineering Yıldız Technical University Turkey Department of Prosthetic Dentistry of Biomedical Sciences Nagasaki University 1-7-1 Sakamoto Nagasaki 852-8588 Japan

This review explores the emerging trends in 3D and 4D printing technologies for dental and orthopedic implants, highlighting innovative methods, diverse applications, and potential future developments. Integrating advanced materials and printing techniques has revolutionized the customization and production of implants, enabling tailored solutions that enhance patient outcomes. Meanwhile, the review examines the current landscape of additive manufacturing in the medical field, focusing on how these technologies improve implants' design, functionality, and biocompatibility. Additionally, this review discusses the implications of 4D printing, which introduces dynamic properties to implants, allowing for adaptive responses to environmental stimuli. Future directions include the exploration of bioactive materials and the potential for in-situ printing in surgical settings, paving the way for more efficient and personalized healthcare solutions. Eventually, this study aims to provide insights into the transformative impact of 3D and 4D printing on the field of dental and orthopedic medicine. © 2025 Elsevier B.v.

关键词： 3D printing 4D printing Biocompatibility Dental applications Healthcare Orthopedic implants

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A review on advances and challenges in wire arc additive manufacturing: Process parameters, microstructural evolution and material performance across alloys

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Journal of Alloys and Compounds 2025年 1029卷

作者： Gain, Suresh veeman, Dhinakaran Department of Mechanical Engineering Chennai Institute of Technology Chennai600069 India

Wire arc additive manufacturing (WAAM) is an advanced technique for fabricating complex metallic components with high deposition rates and cost efficiency. This review examines WAAM process parameters, microstructural evolution and mechanical properties for different materials such as aluminium alloys, stainless steels, titanium alloys and nickel-based alloys. The influence of parameters like current, voltage, wire feed rate and travel speed on material performance is analyzed, along with advancements like multi-wire systems and optimized shielding gases to improve deposition quality. Key findings reveal that aluminium alloys exhibit isotropy in the build direction, stainless steels benefit from refined grain structures, and titanium and nickel-based alloys demonstrate excellent high-temperature strength and corrosion resistance. Despite its advantages, WAAM faces challenges such as residual stress, porosity and thermal distortions. To solve these problems and guarantee structural integrity, techniques including in-situ rolling, preheating, and controlled heat input are essential. This review highlights the adaptability of WAAM for aerospace, automotive, and medical applications although identifying areas for further optimization. By utilizing developments in process control and material design, WAAM has significant potential for revolutionizing the production of high-performance components across various industries. © 2025 Elsevier B.v.

关键词： Microhardness

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Reasonable design of high-capacity MnO2/MXene/CF flexible cathodes for quasi-solid-state aqueous zinc-ion batteries

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Journal of Alloys and Compounds 2025年 1031卷

作者： Pang, Xinyu Liu, Qifan Li, Maokun Fan, Zhanhui Yang, Chao Qiu, Jianhui He, Minhua Zang, Limin MOE Key Laboratory of New Processing Technology for Nonferrous Metal and Materials Guangxi Key Laboratory of Optical and Electronic Materials and Devices Guangxi Colleges and Universities Key Laboratory of Natural and Biomedical Polymer Materials College of Materials Science and Engineering Guilin University of Technology Guilin541004 China Guangxi Key Laboratory of Advanced Structural Materials and Carbon Neutralization Guangxi Minzu University Nanning530006 China Department of Machine Intelligence and Systems Engineering Faculty of Systems Science and Technology Akita Prefectural University Yurihonjo015-0055 Japan Guangxi Huazheng New Energy Technology Co. Ltd. Chongzuo532299 China

Manganese-based aqueous zinc-ion batteries (AZIBs) have garnered growing interest in the area of adaptable and wearable devices because of their properties of simple manufacturing, superior safety, and ecological compatibility. Nevertheless, the actual implementation of Mn-based cathodes has faced challenges due to their inadequate conductivity and poor cycling performance. In this study, a chemical synthesis approach was employed to directly grow MnO2 on the surface and within the interlayer spaces of MXene. Subsequently, the composite was coated onto carbon felt (CF) using the impregnation method to fabricate binder-free MnO2/MXene/CF cathodes for AZIBs. The excellent conductivity and structural stability of MXene effectively enhance ion/electron transport kinetics and mitigate irreversible volume changes of MnO2 during charge and discharge processes. CF with excellent electrical conductivity and flexibility serves as an ideal current collector and substrate material for loading active materials. Moreover, its distinctive three-dimensional porous structure facilitates optimal interaction between the electrode material and the electrolyte. Consequently, the flexible quasi-solid-state AZIB, consisting of the optimized MnO2/MXene/CF cathode and zinc foil anode, exhibits high charge storage performance (a specific capacity of 429.1 mAh g−1 at 0.1 A g−1 and an excellent energy density of 343.2 Wh kg−1 at 79.9 W kg−1). Density functional theory analysis reveals that the incorporation of MXene enhances electron adsorption on MnO2 and significantly alters the density of states of MnO2, thus markedly improving its conductivity. These encouraging findings suggest that manganese-based materials hold great potential for application as cathodes in flexible quasi-solid-state AZIBs. © 2025 Elsevier B.v.

关键词： Carbon carbon composites

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Roadmap on Nonlocality in Photonic Materials and Metamaterials

arXiv

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arXiv 2025年

作者： Monticone, Francesco Mortensen, N. Asger Fernández-Domínguez, Antonio I. Luo, Yu Tserkezis, Christos Khurgin, Jacob B. Shahbazyan, Tigran v. Chaves, André J. Peres, Nuno M.R. Wegner, Gino Busch, Kurt Hu, Huatian della Sala, Fabio Zhang, Pu Ciracì, Cristian Aizpurua, Javier Babaze, Antton Borisov, Andrei G. Chen, Xue-Wen Christensen, Thomas Yan, Wei Yang, Yi Hohenester, Ulrich Huber, Lorenz Wubs, Martijn de Liberato, Simone Gonçalves, P.A.D. de Abajo, F. Javier García Hess, Ortwin Tarasenko, Illya Cox, Joel D. Jelver, Line Dias, Eduardo J.C. Sánchez, Miguel Sánchez Margetis, Dionisios Gómez-Santos, Guillermo Stauber, Tobias Tretyakov, Sergei Simovski, Constantin Pakniyat, Samaneh Gómez-Díaz, J. Sebastián Bondarev, Igor v. Biehs, Svend-Age Boltasseva, Alexandra Shalaev, vladimir M. Krasavin, Alexey v. Zayats, Anatoly v. Alù, Andrea Song, Jung-Hwan Brongersma, Mark L. Levy, Uriel Long, Olivia Y. Guo, Cheng Fan, Shanhui Bozhevolnyi, Sergey I. Overvig, Adam Prudêncio, Filipa R. Silveirinha, Mário G. Gangaraj, S. Ali Hassani Argyropoulos, Christos Huidobro, Paloma A. Galiffi, Emanuele Yang, Fan Pendry, John B. Miller, David A.B. School of Electrical and Computer Engineering Cornell University IthacaNY14853 United States POLIMA Center for Polariton-driven Light–Matter Interactions University of Southern Denmark Campusvej 55 Odense MDK-5230 Denmark D-IAS—Danish Institute for Advanced Study University of Southern Denmark Campusvej 55 Odense MDK-5230 Denmark Departamento de Física Teórica de la Materia Condensada Universidad Autónoma de Madrid MadridE-28049 Spain Universidad Autónoma de Madrid MadridE-28049 Spain School of Electrical and Electronic Engineering Nanyang Technological University Singapore639798 Singapore Key Laboratory of Radar Imaging and Microwave Photonics Ministry of Education College of Electronic and Information Engineering Nanjing University of Aeronautics and Astronautics Nanjing211106 China Department of Electrical and Computer Engineering Johns Hopkins University BaltimoreMD21218 United States Department of Physics Jackson State University JacksonMS39217 United States Department of Physics Aeronautics Institute of Technology SP So Jos dos Campos12228-900 Brazil Departamento de Física Universidade do Minho BragaP-4710-057 Portugal Av Mestre José Veiga Braga4715-330 Portugal Max-Born-Institut Berlin12489 Germany Humboldt-Universität zu Berlin Institut für Physik AG Theoretische Optik and Photonik Berlin12489 Germany Center for Biomolecular Nanotechnologies Istituto Italiano di Tecnologia Via Barsanti 14 Arnesano73010 Italy Via Monteroni Campus Unisalento Lecce73100 Italy School of physics Huazhong University of Science and Technology Luoyu Road 1037 Wuhan430074 China Donostia International Physics Center DIPC Donostia-San Sebastián20018 Spain Ikerbasque Basque Foundation for Science Bilbao48009 Spain Department of Electricity and Electronics University of the Basque Country Leioa48940 Spain Department of Applied Physics University of the Basque Country Donostia20018 Spain Université Paris-Saclay CNRS Institut des Scienc

Photonic technologies continue to drive the quest for new optical materials with unprecedented responses. A major frontier in this field is the exploration of nonlocal (spatially dispersive) materials, going beyond the local, wavevector-independent assumption traditionally made in optical material modeling. On one end, the growing interest in plasmonic, polaritonic and quantum materials has revealed naturally occurring nonlocalities, emphasizing the need for more accurate models to predict and design their optical responses. This has major implications also for topological, nonreciprocal, and time-varying systems based on these material platforms. Beyond natural materials, artificially structured materials—metamaterials and metasurfaces–can provide even stronger and engineered nonlocal effects, emerging from long-range interactions or multipolar effects. This is a rapidly expanding area in the field of photonic metamaterials, with open frontiers yet to be explored. In the case of metasurfaces, in particular, nonlocality engineering has become a powerful tool for designing strongly wavevector-dependent responses, enabling enhanced wavefront control, spatial compression, multifunctional devices, and wave-based computing. Furthermore, nonlocality and related concepts play a critical role in defining the ultimate limits of what is possible in optics, photonics, and wave physics. This Roadmap aims to survey the most exciting developments in nonlocal photonic materials, highlight new opportunities and open challenges, and chart new pathways that will drive this emerging field forward–toward new scientific discoveries and technological advancements. Copyright © 2025, The Authors. All rights reserved.

关键词： Nanocrystals

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visible-NIR imaging optics for a Fourier transform spectrometer

Visible-NIR imaging optics for a Fourier transform spectrome...

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Conference on current developments in Lens design and optical engineering v

作者： Thibault, S Reecht, M Lavigne, JF Desnoyers, N INO Opt Design & Optomech Grp St Foy PQ Canada

ISBN: (纸本)0819454613

We present details of optical design, opto-mechanical design and testing of a visible-NIR imaging optical system for a Fourier transform spectrometer dedicated to astronomical application at the Mont Megantic Observatory (Observatoire du Mont Megantic, OMM, located south Quebec city, Canada). design considerations as well as testing and experimental results are presented.

关键词： astronomical instrumentation optical design opto-mechanical design imaging Fourier transform spectrometer

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Recent developments and applications in electronic speckle pattern interferometry

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JOURNAL OF STRAIN ANALYSIS FOR engineering design 1998年第2期33卷 153-169页

作者： Petzing, JN Tyrer, JR Univ Loughborough Dept Mech Engn Loughborough Leics England

Electronic speckle pattern interferometry (ESPI) is a wholefield non-contact optical metrology technique for displacement measurement, based on the optical physics of surface-generated laser speckle. Since its inception during the early 1970s ESPI has gradually evolved into different optical designs and has been applied to a range of engineering and non-engineering applications. Development of ESPI has continued during the 1990s with the introduction of new laser and optical technology into the interferometers, allowing further optimization and extending the potential applicability of the technique. This review considers the most notable developments of interferometer design and application that have occurred and been widely published during the 1990s, and examines the current and near-future direction of research into the technique.

关键词： speckle interferometry ESPI static dynamic transient wholefield

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Erratum: (current developments in Lens design and optical engineering II (30 July 2001))

Proceedings of SPIE - The International Society for Optical ...

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Proceedings of SPIE - The International Society for optical engineering 2001年 4441卷 179-179页

作者： Fischer, Robert E. Johnson, R. Barry Smith, Warren J.

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PORTABLE NANOJOULE BACKSCATTER LIDAR FOR ENvIRONMENTAL SENSING

PORTABLE NANOJOULE BACKSCATTER LIDAR FOR ENVIRONMENTAL SENSI...

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CONF ON current developments IN optical design AND optical engineering 2

作者： PERSHIN, S BUKHARIN, A MAKAROv, v LINKIN, v PATSAEv, D PROCHAZKA, I HAMAL, K Space Research Institute (Russia) Technical Univ. (Czech Republic)

ISBN: (纸本)0819409251

The eye-safe (500 nJ per pulse) portable lidar with a wavelength of 0.840 micrometers has been designed. Operating as a photon counter, it allows to measure a distance to objects within a 5 km range with an accuracy of 5 m and backscatter coefficients with an accuracy of 2 * 10^-7 (msr)^-1. Results of some applications are presented.

关键词： Backscatter LIDAR Environmental sensing Distance measurement Photon counting Calibration Data processing Receivers Signal attenuation Transmitters

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Erratum: current developments in optical design and enginneering vII (Proceeding of SPIE - The International Society for optical engineering)

Proceedings of SPIE - The International Society for Optical ...

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Proceedings of SPIE - The International Society for optical engineering 1998年 3429卷 312-312页

作者： Fisher, Robert E. Germann, Lawrence M. Hatheway, Alson E. McConnell, Malaehy Smith, Warren J.

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Small catadioptric microscope optics

Small catadioptric microscope optics

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Conference on current developments in Lens design and optical engineering v

作者： Shafer, DR Chuang, YH Armstrong, JJ David Shafer Opt Design Fairfield CT 06430 USA

ISBN: (纸本)0819454613

New catadioptric objectives have been developed with large bandwidths in the DUv, high numerical apertures (NAs), and small size. This can be achieved using a single glass material. designs are specifically optimized for loose alignment tolerances and ease of manufacturability. Applications include broad band DUv imaging and high resolution immersion imaging for industrial microscopy and life sciences.

关键词： catadioptric DUv broadband microscope objective

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