1
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Wang Y, Yi C, Tian W, Liu F, Cheng GJ. Free-space direct nanoscale 3D printing of metals and alloys enabled by two-photon decomposition and ultrafast optical trapping. NATURE MATERIALS 2024:10.1038/s41563-024-01984-z. [PMID: 39169240 DOI: 10.1038/s41563-024-01984-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 07/30/2024] [Indexed: 08/23/2024]
Abstract
Nanoscale three-dimensional (3D) printing of metals and alloys has faced challenges in speed, miniaturization and deficiency in material properties. Traditional nanomanufacturing relies on lithographic methods with material constraints, limited resolution and slow layer-by-layer processing. This work introduces polymer-free techniques using two-photon decomposition and optical force trapping for free-space direct 3D printing of metals, metal oxides and multimetallic alloys with resolutions beyond optical limits. This method involves the two-photon decomposition of metal atoms from precursors, rapid assembly into nanoclusters via optical forces and ultrafast laser sintering, yielding dense, smooth nanostructures. Enhanced near-field optical forces from laser-induced localized surface plasmon resonance facilitate nanocluster aggregation. Our approach eliminates the need for organic materials, layer-by-layer printing and complex post-processing. Printed Mo nanowires show an excellent mechanical performance, closely resembling the behaviour of single crystals, while Mo-Co-W alloy nanowires outperform Mo nanowires. This innovation promises the customizable 3D nanoprinting of high-quality metals and metal oxides, impacting nanoelectronics, nanorobotics and advanced chip manufacturing.
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Affiliation(s)
- Yaoyu Wang
- Institute of Technological Sciences, Wuhan University, Wuhan, China
| | - Chenqi Yi
- Institute of Technological Sciences, Wuhan University, Wuhan, China
| | - Wenxiang Tian
- State Key Laboratory of Water Resources Engineering and Management, Wuhan University & Changjiang Institute of Survey, Planning, Design and Research Corporation, Wuhan, P.R. China
- Institute of Water Engineering Sciences, Wuhan University, Wuhan, China
| | - Feng Liu
- Institute of Technological Sciences, Wuhan University, Wuhan, China
- School of Power and Mechanical Engineering, Wuhan University, Wuhan, China
| | - Gary J Cheng
- Institute of Technological Sciences, Wuhan University, Wuhan, China.
- School of Industrial Engineering, Purdue University, West Lafayette, IN, USA.
- School of Materials Engineering, Purdue University, West Lafayette, IN, USA.
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2
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Menétrey M, Kupferschmid C, Gerstl S, Spolenak R. On the Resolution Limit of Electrohydrodynamic Redox 3D Printing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402067. [PMID: 39092685 DOI: 10.1002/smll.202402067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 06/17/2024] [Indexed: 08/04/2024]
Abstract
Additive manufacturing (AM) will empower the next breakthroughs in nanotechnology by combining unmatched geometrical freedom with nanometric resolution. Despite recent advances, no micro-AM technique has been able to synthesize functional nanostructures with excellent metal quality and sub-100 nm resolution. Here, significant breakthroughs in electrohydrodynamic redox 3D printing (EHD-RP) are reported by directly fabricating high-purity Cu (>98 at.%) with adjustable voxel size from >6µm down to 50 nm. This unique tunability of the feature size is achieved by managing in-flight solvent evaporation of the ion-loaded droplet to either trigger or prevent the Coulomb explosion. In the first case, the landing of confined droplets on the substrate allows the fabrication of high-aspect-ratio 50 nm-wide nanopillars, while in the second, droplet disintegration leads to large-area spray deposition. It is discussed that the reported pillar width corresponds to the ultimate resolution achievable by EHD printing. The unrivaled feature size and growth rate (>100 voxel s-1) enable the direct manufacturing of 30 µm-tall atom probe tomography (APT) tips that unveil the pristine microstructure and chemistry of the deposit. This method opens up prospects for the development of novel materials for 3D nano-printing.
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Affiliation(s)
- Maxence Menétrey
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, Zürich, 8093, Switzerland
| | - Cédric Kupferschmid
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, Zürich, 8093, Switzerland
| | - Stephan Gerstl
- Scientific Center for Optical and Electron Microscopy (ScopeM), ETH Zürich, Otto-Stern-Weg 3, Zürich 8093, Switzerland
| | - Ralph Spolenak
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, Zürich, 8093, Switzerland
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3
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Zhu C, Gemeda HB, Duoss EB, Spadaccini CM. Toward Multiscale, Multimaterial 3D Printing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2314204. [PMID: 38775924 DOI: 10.1002/adma.202314204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 04/11/2024] [Indexed: 06/06/2024]
Abstract
Biological materials and organisms possess the fundamental ability to self-organize, through which different components are assembled from the molecular level up to hierarchical structures with superior mechanical properties and multifunctionalities. These complex composites inspire material scientists to design new engineered materials by integrating multiple ingredients and structures over a wide range. Additive manufacturing, also known as 3D printing, has advantages with respect to fabricating multiscale and multi-material structures. The need for multifunctional materials is driving 3D printing techniques toward arbitrary 3D architectures with the next level of complexity. In this paper, the aim is to highlight key features of those 3D printing techniques that can produce either multiscale or multimaterial structures, including innovations in printing methods, materials processing approaches, and hardware improvements. Several issues and challenges related to current methods are discussed. Ultimately, the authors also provide their perspective on how to realize the combination of multiscale and multimaterial capabilities in 3D printing processes and future directions based on emerging research.
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Affiliation(s)
- Cheng Zhu
- Center for Engineered Materials and Manufacturing, Materials Engineering Division, Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA, 94550, USA
| | - Hawi B Gemeda
- Center for Engineered Materials and Manufacturing, Materials Engineering Division, Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA, 94550, USA
| | - Eric B Duoss
- Center for Engineered Materials and Manufacturing, Materials Engineering Division, Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA, 94550, USA
| | - Christopher M Spadaccini
- Center for Engineered Materials and Manufacturing, Materials Engineering Division, Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA, 94550, USA
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4
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Nydegger M, Wang ZJ, Willinger MG, Spolenak R, Reiser A. Direct In- and Out-of-Plane Writing of Metals on Insulators by Electron-Beam-Enabled, Confined Electrodeposition with Submicrometer Feature Size. SMALL METHODS 2024; 8:e2301247. [PMID: 38183406 DOI: 10.1002/smtd.202301247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 12/18/2023] [Indexed: 01/08/2024]
Abstract
Additive microfabrication processes based on localized electroplating enable the one-step deposition of micro-scale metal structures with outstanding performance, e.g., high electrical conductivity and mechanical strength. They are therefore evaluated as an exciting and enabling addition to the existing repertoire of microfabrication technologies. Yet, electrochemical processes are generally restricted to conductive or semiconductive substrates, precluding their application in the manufacturing of functional electric devices where direct deposition onto insulators is often required. Here, the direct, localized electrodeposition of copper on a variety of insulating substrates, namely Al2O3, glass and flexible polyethylene, is demonstrated, enabled by electron-beam-induced reduction in a highly confined liquid electrolyte reservoir. The nanometer-size of the electrolyte reservoir, fed by electrohydrodynamic ejection, enables a minimal feature size on the order of 200 nm. The fact that the transient reservoir is established and stabilized by electrohydrodynamic ejection rather than specialized liquid cells can offer greater flexibility toward deposition on arbitrary substrate geometries and materials. Installed in a low-vacuum scanning electron microscope, the setup further allows for operando, nanoscale observation and analysis of the manufacturing process.
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Affiliation(s)
- Mirco Nydegger
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, Zürich, 8093, Switzerland
| | - Zhu-Jun Wang
- Scientific Center of Optical and Electron Microscopy, ScopeM, ETH Zürich, Otto-Stern Weg 3, Zürich, 8093, Switzerland
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, 201210, People's Republic of China
| | - Marc Georg Willinger
- Scientific Center of Optical and Electron Microscopy, ScopeM, ETH Zürich, Otto-Stern Weg 3, Zürich, 8093, Switzerland
- School of Natural Science, Department of Chemistry, Technical University of Munich, Lichtenbergstraße 4, 85747, Garching, Germany
| | - Ralph Spolenak
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, Zürich, 8093, Switzerland
| | - Alain Reiser
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, Zürich, 8093, Switzerland
- Department of Materials Science and Engineering, KTH Royal Institute of Technology, Brinellvägen 23, Stockholm, 11428, Sweden
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5
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Duan Y, Yu R, Zhang H, Yang W, Xie W, Huang Y, Yin Z. Programmable, High-resolution Printing of Spatially Graded Perovskites for Multispectral Photodetectors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2313946. [PMID: 38582876 DOI: 10.1002/adma.202313946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 04/03/2024] [Indexed: 04/08/2024]
Abstract
Micro/nanostructured perovskites with spatially graded compositions and bandgaps are promising in filter-free, chip-level multispectral, and hyperspectral detection. However, achieving high-resolution patterning of perovskites with controlled graded compositions is challenging. Here, a programmable mixed electrohydrodynamic printing (M-ePrinting) technique is presented to realize the one-step direct-printing of arbitrary spatially graded perovskite micro/nanopatterns for the first time. M-ePrinting enables in situ mixing and ejection of solutions with controlled composition/bandgap by programmatically varying driving voltage applied to a multichannel nozzle. Composition can be graded over a single dot, line or complex pattern, and the printed feature size is down to 1 µm, which is the highest printing resolution of graded patterns to the knowledge. Photodetectors based on micro/nanostructured perovskites with halide ions gradually varying from Br to I are constructed, which successfully achieve multispectral detection and full-color imaging, with a high detectivity and responsivity of 3.27 × 1015 Jones and 69.88 A W-1, respectively. The presented method provides a versatile and competitive approach for such miniaturized bandgap-tunable perovskite spectrometer platforms and artificial vision systems, and also opens new avenues for the digital fabrication of composition-programmable structures.
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Affiliation(s)
- Yongqing Duan
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Rui Yu
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Hanyuan Zhang
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Weili Yang
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Wenshuo Xie
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - YongAn Huang
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zhouping Yin
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Optics Valley Laboratory, Hubei, 430074, China
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6
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Shi S, Abbas Z, Hu X, Zheng X, Zhao X, Ren T, Wang D. Efficient Fabrication of Bioinspired Flexible Pressure Sensors via Electrohydrodynamic Jet Printing Method. Macromol Rapid Commun 2024:e2400322. [PMID: 38819032 DOI: 10.1002/marc.202400322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Indexed: 06/01/2024]
Abstract
Bioinspired microdevices have made significant strides in various applications including human motion and health detection. However, facile and highly efficient fabrication approach of flexible pressure sensors remains a great challenge. Herein, inspired by the gecko's foot structure, a flexible pressure sensor with microdomes structure is fabricated by tip-assisted on-demand electrohydrodynamic jet (EHD-jet) printing method. Ascribed to the interlocking electrodes with microdome structure, 3D deformation rates are substantially enlarged. When the microdromes structure is under pressure, the resistivity of carbon nanotubes film coated on the surface of microdomes structure will change remarkably. By using the combined effect of assisted tip and ring focusing electrode, the influence and constraints on microstructure fabrication caused by substrate material and morphology are minimized. The desired uniform structures can be adjusted rapidly by changing the printing parameters and liquid properties. High length-height ratio (0.64) of microdomes enhances sensitivity, with minimum detection limit is 2 Pa and response time is 40 ms. Finally, the bionic flexible sensor indicated excellent performance in capable of detecting pressure, sound vibrations and human motion. This work presents a new method for high-efficiency fabrication micro-nano patterns for flexible sensors inspired, which could be used in wearable tech and health monitoring.
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Affiliation(s)
- Shiwei Shi
- State Key Laboratory of High-Performance Precision Manufacturing, Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian, 116024, China
| | - Zeshan Abbas
- State Key Laboratory of High-Performance Precision Manufacturing, Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian, 116024, China
| | - Xiaoguang Hu
- State Key Laboratory of High-Performance Precision Manufacturing, Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian, 116024, China
| | - Xiaohu Zheng
- State Key Laboratory of High-Performance Precision Manufacturing, Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian, 116024, China
| | - Xiangyu Zhao
- State Key Laboratory of High-Performance Precision Manufacturing, Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian, 116024, China
| | - Tongqun Ren
- State Key Laboratory of High-Performance Precision Manufacturing, Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian, 116024, China
| | - Dazhi Wang
- State Key Laboratory of High-Performance Precision Manufacturing, Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian, 116024, China
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7
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Jiang Y, Ye D, Li A, Zhang B, Han W, Niu X, Zeng M, Guo L, Zhang G, Yin Z, Huang Y. Transient charge-driven 3D conformal printing via pulsed-plasma impingement. Proc Natl Acad Sci U S A 2024; 121:e2402135121. [PMID: 38771869 PMCID: PMC11145272 DOI: 10.1073/pnas.2402135121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 04/23/2024] [Indexed: 05/23/2024] Open
Abstract
Seamless integration of microstructures and circuits on three-dimensional (3D) complex surfaces is of significance and is catalyzing the emergence of many innovative 3D curvy electronic devices. However, patterning fine features on arbitrary 3D targets remains challenging. Here, we propose a facile charge-driven electrohydrodynamic 3D microprinting technique that allows micron- and even submicron-scale patterning of functional inks on a couple of 3D-shaped dielectrics via an atmospheric-pressure cold plasma jet. Relying on the transient charging of exposed sites arising from the weakly ionized gas jet, the specified charge is programmably deposited onto the surface as a virtual electrode with spatial and time spans of ~mm in diameter and ~μs in duration to generate a localized electric field accordantly. Therefore, inks with a wide range of viscosities can be directly drawn out from micro-orifices and deposited on both two-dimensional (2D) planar and 3D curved surfaces with a curvature radius down to ~1 mm and even on the inner wall of narrow cavities via localized electrostatic attraction, exhibiting a printing resolution of ~450 nm. In addition, several conformal electronic devices were successfully printed on 3D dielectric objects. Self-aligned 3D microprinting, with stacking layers up to 1400, is also achieved due to the electrified surfaces. This microplasma-induced printing technique exhibits great advantages such as ultrahigh resolution, excellent compatibility of inks and substrates, antigravity droplet dispersion, and omnidirectional printing on 3D freeform surfaces. It could provide a promising solution for intimately fabricating electronic devices on arbitrary 3D surfaces.
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Affiliation(s)
- Yu Jiang
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan430074, People's Republic of China
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan430074, People's Republic of China
| | - Dong Ye
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan430074, People's Republic of China
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan430074, People's Republic of China
| | - Aokang Li
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan430074, People's Republic of China
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan430074, People's Republic of China
| | - Bo Zhang
- State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, Shaanxi710049, People's Republic of China
| | - Wenhu Han
- State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, Shaanxi710049, People's Republic of China
| | - Xuechen Niu
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan430074, People's Republic of China
| | - Mingtao Zeng
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan430074, People's Republic of China
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan430074, People's Republic of China
| | - Lianbo Guo
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan430074, People's Republic of China
| | - Guanjun Zhang
- State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, Shaanxi710049, People's Republic of China
| | - Zhouping Yin
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan430074, People's Republic of China
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan430074, People's Republic of China
| | - YongAn Huang
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan430074, People's Republic of China
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan430074, People's Republic of China
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8
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An N, Chen T, Zhang J, Wang G, Yan M, Yang S. Rational Electrochemical Design of Cuprous Oxide Hierarchical Microarchitectures and Their Derivatives for SERS Sensing Applications. SMALL METHODS 2024; 8:e2300910. [PMID: 38415973 DOI: 10.1002/smtd.202300910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 01/02/2024] [Indexed: 02/29/2024]
Abstract
Rational morphology control of inorganic microarchitectures is important in diverse fields, requiring precise regulation of nucleation and growth processes. While wet chemical methods have achieved success regarding the shape-controlled synthesis of micro/nanostructures, accurately controlling the growth behavior in real time remains challenging. Comparatively, the electrodeposition technique can immediately control the growth behavior by tuning the overpotential, whereas it is rarely used to design complex microarchitectures. Here, the electrochemical design of complex Cu2O microarchitectures step-by-step by precisely controlling the growth behavior is demonstrated. The growth modes can be switched between the thermodynamic and kinetic modes by varying the overpotential. Cl- ions preferably adhered to {100} facets to modulate growth rates of these facets is proved. The discovered growth modes to prepare Cu2O microarchitectures composed of multiple building units inaccessible with existing methods are employed. Polyvinyl alcohol (PVA) additives can guarantee all pre-electrodeposits simultaneously evolve into uniform microarchitectures, instead of forming undesired microstructures on bare electrode surfaces in following electrodeposition processes is discovered. The designed Cu2O microarchitectures can be converted into noble metal microstructures with shapes unchanged, which can be used as surface-enhanced Raman scattering substrates. An electrochemical avenue toward rational design of complex inorganic microarchitectures is opened up.
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Affiliation(s)
- Ning An
- Institute for Composites Science Innovation, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Tiantian Chen
- Institute for Composites Science Innovation, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Junfeng Zhang
- School of Physics and Information, Shanxi Normal University, Taiyuan, 030031, China
| | - Guanghui Wang
- School of Automotive Engineering, Hubei University of Automotive Technology, Shiyan, 442002, China
| | - Mi Yan
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization, Baotou Research Institution of Rare Earths, Baotou, 014030, China
| | - Shikuan Yang
- Institute for Composites Science Innovation, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization, Baotou Research Institution of Rare Earths, Baotou, 014030, China
- Department of Medical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
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9
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Suwankaisorn B, Aroonratsameruang P, Kuhn A, Wattanakit C. Enantioselective recognition, synthesis, and separation of pharmaceutical compounds at chiral metallic surfaces. ChemMedChem 2024; 19:e202300557. [PMID: 38233349 DOI: 10.1002/cmdc.202300557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/03/2024] [Accepted: 01/17/2024] [Indexed: 01/19/2024]
Abstract
The development of new pharmaceutical compounds is challenging because most of them are based on enantiopure chiral molecules, which exhibit unique properties for therapy. However, the synthesis of pharmaceutical compounds in the absence of a chiral environment naturally leads to a racemic mixture. Thus, to control their synthesis, an asymmetric environment is required, and chiral homogeneous catalysts are typically used to synthesize enantiopure pharmaceutical compounds (EPC). Nevertheless, homogeneous catalysts are difficult to recover after the reaction, generating additional problems and costs in practical processes. Thus, the development of chiral heterogeneous catalysts is a timely topic. In a more general context, such chiral materials cannot only be used for synthesis, but also to recognize and separate enantiomers. In the frame of these different challenges, we give in this review a short introduction to strategies to extrinsically and intrinsically modify heterogeneous metal matrixes for the enantioselective synthesis, recognition, and separation of chiral pharmaceutical compounds.
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Affiliation(s)
- Banyong Suwankaisorn
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, 555 Moo.1 Payupnai, Wangchan, Rayong, Thailand, 21210
- University of Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255, 16, avenue Pey Berland, 33607, Pessac, France
| | - Ponart Aroonratsameruang
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, 555 Moo.1 Payupnai, Wangchan, Rayong, Thailand, 21210
| | - Alexander Kuhn
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, 555 Moo.1 Payupnai, Wangchan, Rayong, Thailand, 21210
- University of Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255, 16, avenue Pey Berland, 33607, Pessac, France
| | - Chularat Wattanakit
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, 555 Moo.1 Payupnai, Wangchan, Rayong, Thailand, 21210
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10
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Zhang P, Liu C, Modavi C, Abate A, Chen H. Printhead on a chip: empowering droplet-based bioprinting with microfluidics. Trends Biotechnol 2024; 42:353-368. [PMID: 37777352 DOI: 10.1016/j.tibtech.2023.09.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 09/02/2023] [Accepted: 09/11/2023] [Indexed: 10/02/2023]
Abstract
Droplet-based bioprinting has long struggled with the manipulation and dispensation of individual cells from a printhead, hindering the fabrication of artificial cellular structures with high precision. The integration of modern microfluidic modules into the printhead of a bioprinter is emerging as one approach to overcome this bottleneck. This convergence allows for high-accuracy manipulation and spatial control over placement of cells during printing, and enables the fabrication of cell arrays and hierarchical heterogenous microtissues, opening new applications in bioanalysis and high-throughput screening. In this review, we summarize recent developments in the use of microfluidics in droplet printing systems, with consideration of the working principles; present applications extended through microfluidic features; and discuss the future of this technology.
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Affiliation(s)
- Pengfei Zhang
- School of Mechanical Engineering and Automation, Beihang University, Beijing, China.
| | - Congying Liu
- School of Mechanical Engineering and Automation, Beihang University, Beijing, China
| | - Cyrus Modavi
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, CA, USA
| | - Adam Abate
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, CA, USA; California Institute for Quantitative Biosciences, University of California, San Francisco, San Francisco, CA, USA.
| | - Huawei Chen
- School of Mechanical Engineering and Automation, Beihang University, Beijing, China
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11
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Jambhulkar S, Ravichandran D, Zhu Y, Thippanna V, Ramanathan A, Patil D, Fonseca N, Thummalapalli SV, Sundaravadivelan B, Sun A, Xu W, Yang S, Kannan AM, Golan Y, Lancaster J, Chen L, Joyee EB, Song K. Nanoparticle Assembly: From Self-Organization to Controlled Micropatterning for Enhanced Functionalities. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306394. [PMID: 37775949 DOI: 10.1002/smll.202306394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/02/2023] [Indexed: 10/01/2023]
Abstract
Nanoparticles form long-range micropatterns via self-assembly or directed self-assembly with superior mechanical, electrical, optical, magnetic, chemical, and other functional properties for broad applications, such as structural supports, thermal exchangers, optoelectronics, microelectronics, and robotics. The precisely defined particle assembly at the nanoscale with simultaneously scalable patterning at the microscale is indispensable for enabling functionality and improving the performance of devices. This article provides a comprehensive review of nanoparticle assembly formed primarily via the balance of forces at the nanoscale (e.g., van der Waals, colloidal, capillary, convection, and chemical forces) and nanoparticle-template interactions (e.g., physical confinement, chemical functionalization, additive layer-upon-layer). The review commences with a general overview of nanoparticle self-assembly, with the state-of-the-art literature review and motivation. It subsequently reviews the recent progress in nanoparticle assembly without the presence of surface templates. Manufacturing techniques for surface template fabrication and their influence on nanoparticle assembly efficiency and effectiveness are then explored. The primary focus is the spatial organization and orientational preference of nanoparticles on non-templated and pre-templated surfaces in a controlled manner. Moreover, the article discusses broad applications of micropatterned surfaces, encompassing various fields. Finally, the review concludes with a summary of manufacturing methods, their limitations, and future trends in nanoparticle assembly.
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Affiliation(s)
- Sayli Jambhulkar
- Systems Engineering, School of Manufacturing Systems and Networks (MSN), Ira A. Fulton Schools of Engineering, Arizona State University (ASU), Mesa, AZ, 85212, USA
| | - Dharneedar Ravichandran
- Manufacturing Engineering, School of Manufacturing Systems and Networks (MSN), Ira A. Fulton Schools of Engineering, Arizona State University (ASU), Mesa, AZ, 85212, USA
| | - Yuxiang Zhu
- Manufacturing Engineering, School of Manufacturing Systems and Networks (MSN), Ira A. Fulton Schools of Engineering, Arizona State University (ASU), Mesa, AZ, 85212, USA
| | - Varunkumar Thippanna
- Manufacturing Engineering, School of Manufacturing Systems and Networks (MSN), Ira A. Fulton Schools of Engineering, Arizona State University (ASU), Mesa, AZ, 85212, USA
| | - Arunachalam Ramanathan
- Manufacturing Engineering, School of Manufacturing Systems and Networks (MSN), Ira A. Fulton Schools of Engineering, Arizona State University (ASU), Mesa, AZ, 85212, USA
| | - Dhanush Patil
- Manufacturing Engineering, School of Manufacturing Systems and Networks (MSN), Ira A. Fulton Schools of Engineering, Arizona State University (ASU), Mesa, AZ, 85212, USA
| | - Nathan Fonseca
- Manufacturing Engineering, School of Manufacturing Systems and Networks (MSN), Ira A. Fulton Schools of Engineering, Arizona State University (ASU), Mesa, AZ, 85212, USA
| | - Sri Vaishnavi Thummalapalli
- Manufacturing Engineering, School of Manufacturing Systems and Networks (MSN), Ira A. Fulton Schools of Engineering, Arizona State University (ASU), Mesa, AZ, 85212, USA
| | - Barath Sundaravadivelan
- Department of Mechanical and Aerospace Engineering, School for Engineering of Matter, Transport & Energy, Ira A. Fulton Schools of Engineering, Arizona State University (ASU), Tempe, AZ, 85281, USA
| | - Allen Sun
- Department of Chemistry, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Weiheng Xu
- Systems Engineering, School of Manufacturing Systems and Networks (MSN), Ira A. Fulton Schools of Engineering, Arizona State University (ASU), Mesa, AZ, 85212, USA
| | - Sui Yang
- Materials Science and Engineering, School for Engineering of Matter, Transport and Energy (SEMTE), Arizona State University (ASU), Tempe, AZ, 85287, USA
| | - Arunachala Mada Kannan
- The Polytechnic School (TPS), Ira A. Fulton Schools of Engineering, Arizona State University (ASU), Mesa, AZ, 85212, USA
| | - Yuval Golan
- Department of Materials Engineering and the Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer Sheva, 8410501, Israel
| | - Jessica Lancaster
- Department of Immunology, Mayo Clinic Arizona, 13400 E Shea Blvd, Scottsdale, AZ, 85259, USA
| | - Lei Chen
- Mechanical Engineering, University of Michigan-Dearborn, 4901 Evergreen Rd, Dearborn, MI, 48128, USA
| | - Erina B Joyee
- Mechanical Engineering and Engineering Science, University of North Carolina, Charlotte, 9201 University City Blvd, Charlotte, NC, 28223, USA
| | - Kenan Song
- School of Environmental, Civil, Agricultural, and Mechanical Engineering (ECAM), College of Engineering, University of Georgia (UGA), Athens, GA, 30602, USA
- Adjunct Professor of School of Manufacturing Systems and Networks (MSN), Ira A. Fulton Schools of Engineering, Arizona State University (ASU), Mesa, AZ, 85212, USA
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12
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Menétrey M, Zezulka L, Fandré P, Schmid F, Spolenak R. Nanodroplet Flight Control in Electrohydrodynamic Redox 3D Printing. ACS APPLIED MATERIALS & INTERFACES 2024; 16:1283-1292. [PMID: 38157367 PMCID: PMC10788821 DOI: 10.1021/acsami.3c10829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 10/05/2023] [Accepted: 11/29/2023] [Indexed: 01/03/2024]
Abstract
Electrohydrodynamic 3D printing is an additive manufacturing technique with enormous potential in plasmonics, microelectronics, and sensing applications thanks to its broad material palette, high voxel deposition rate, and compatibility with various substrates. However, the electric field used to deposit material is concentrated at the depositing structure, resulting in the focusing of the charged droplets and geometry-dependent landing positions, which complicates the fabrication of complex 3D shapes. The low level of concordance between the design and printout seriously impedes the development of electrohydrodynamic 3D printing and rationalizes the simplicity of the designs reported so far. In this work, we break the electric field centrosymmetry to study the resulting deviation in the flight trajectory of the droplets. Comparison of experimental outcomes with predictions of an FEM model provides new insights into the droplet characteristics and unveils how the product of droplet size and charge uniquely governs its kinematics. From these insights, we develop reliable predictions of the jet trajectory and allow the computation of optimized printing paths counterbalancing the electric field distortion, thereby enabling the fabrication of geometries with unprecedented complexity.
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Affiliation(s)
- Maxence Menétrey
- Laboratory
for Nanometallurgy, Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, Zürich 8093, Switzerland
| | - Lukáš Zezulka
- Laboratory
for Nanometallurgy, Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, Zürich 8093, Switzerland
- Institute
of Physical Engineering, Faculty of Mechanical Engineering, Brno University of Technology, Technická 2, 61669 Brno, Czech
Republic
| | - Pascal Fandré
- Laboratory
for Nanometallurgy, Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, Zürich 8093, Switzerland
| | - Fabian Schmid
- Laboratory
for Nanometallurgy, Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, Zürich 8093, Switzerland
| | - Ralph Spolenak
- Laboratory
for Nanometallurgy, Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, Zürich 8093, Switzerland
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13
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Wang X, Yang X, Wang Y, Li B, Chu J. Droplet Printing Enabled by Cavity Collapse Ejection. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:13399-13408. [PMID: 37674286 DOI: 10.1021/acs.langmuir.3c02291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
The behavior of cavity collapse in liquids is of fundamental importance in natural and industrial applications. It is still challenging to use the phenomenon of cavity collapse ejection in on-demand droplet printing technology. In this study, we investigate the cavity collapse ejection phenomenon in the submillimeter to millimeter scale and demonstrate that the cavity capillary energy is a critical factor affecting the state of the generated jet. Based on this phenomenon, we developed a droplet printing technology that can print nanoliter satellite-free droplets from a millimeter-sized nozzle, which reduces the risk of nozzle clogging. Using this printing technology, we demonstrated the printing of a nanoparticle suspension with 60% mass loading. Finally, we also showcased the printing of various inks for different applications using this technology, demonstrating the printability of cavity collapse-ejection printing technology in functional inks and showing potential to be applied in scenarios such as bioassays, the electronics industry, and additive manufacturing.
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Affiliation(s)
- Xiaojie Wang
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui 230027, China
- Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, Anhui 230027, China
| | - Xin Yang
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui 230027, China
- Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, Anhui 230027, China
| | - Yiming Wang
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui 230027, China
- Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, Anhui 230027, China
| | - Baoqing Li
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui 230027, China
- Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, Anhui 230027, China
| | - Jiaru Chu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui 230027, China
- Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, Anhui 230027, China
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14
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Wang S, Zeng G, Sun Q, Feng Y, Wang X, Ma X, Li J, Zhang H, Wen J, Feng J, Ci L, Cabot A, Tian Y. Flexible Electronic Systems via Electrohydrodynamic Jet Printing: A MnSe@rGO Cathode for Aqueous Zinc-Ion Batteries. ACS NANO 2023. [PMID: 37411016 DOI: 10.1021/acsnano.3c00672] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
Aqueous zinc-ion batteries (ZIBs) are promising candidates to power flexible integrated functional systems because they are safe and environmentally friendly. Among the numerous cathode materials proposed, Mn-based compounds, particularly MnO2, have attracted special attention because of their high energy density, nontoxicity, and low cost. However, the cathode materials reported so far are characterized by sluggish Zn2+ storage kinetics and moderate stabilities. Herein, a ZIB cathode based on reduced graphene oxide (rGO)-coated MnSe nanoparticles (MnSe@rGO) is proposed. After MnSe was activated to α-MnO2, the ZIB exhibits a specific capacity of up to 290 mAh g-1. The mechanism underlying the improvement in the electrochemical performance of the MnSe@rGO based electrode is investigated using a series of electrochemical tests and first-principles calculations. Additionally, in situ Raman spectroscopy is used to track the phase transition of the MnSe@rGO cathodes during the initial activation, proving the structural evolution from the LO to MO6 mode. Because of the high mechanical stability of MnSe@rGO, flexible miniaturized energy storage devices can be successfully printed using a high-precision electrohydrodynamic (EHD) jet printer and integrated with a touch-controlled light-emitting diode array system, demonstrating the application of flexible EHD jet-printed microbatteries.
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Affiliation(s)
- Shang Wang
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
- Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou 45004, China
| | - Guifang Zeng
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
- Catalonia Institute for Energy Research - IREC, Sant Adrià de Besòs, Barcelona 08930, Spain
- Department of Electronic and Biomedical Engineering, Universitat de Barcelona, Barcelona 08028, Spain
| | - Qing Sun
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
- State Key Laboratory of Advanced Welding and Joining, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Yan Feng
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
| | - Xinxin Wang
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
| | - Xinyang Ma
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
| | - Jing Li
- State Key Laboratory of Advanced Welding and Joining, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - He Zhang
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
| | - Jiayue Wen
- Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou 45004, China
| | - Jiayun Feng
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
| | - Lijie Ci
- State Key Laboratory of Advanced Welding and Joining, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Andreu Cabot
- Catalonia Institute for Energy Research - IREC, Sant Adrià de Besòs, Barcelona 08930, Spain
- ICREA Pg. Lluis Companys, Barcelona 08010, Spain
| | - Yanhong Tian
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
- Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou 45004, China
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15
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Hengsteler J, Kanes KA, Khasanova L, Momotenko D. Beginner's Guide to Micro- and Nanoscale Electrochemical Additive Manufacturing. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2023; 16:71-91. [PMID: 37068744 DOI: 10.1146/annurev-anchem-091522-122334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Electrochemical additive manufacturing is an advanced microfabrication technology capable of producing features of almost unlimited geometrical complexity. A unique combination of the capacity to process conductive materials, design freedom, and micro- to nanoscale resolution offered by these electrochemical techniques promises tremendous opportunities for a multitude of future applications spanning microelectronics, sensing, robotics, and energy storage. This review aims to equip readers with the basic principles of electrochemical 3D printing at the small length scale. By describing the basic principles of electrochemical additive manufacturing technology and using the recent advances in the field, this beginner's guide illustrates how controlling the fundamental phenomena that underpin the print process can be used to vary dimensions, morphology, and microstructure of printed structures.
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Affiliation(s)
- Julian Hengsteler
- Laboratory of Biosensors and Bioelectronics, Institute for Biomedical Engineering, ETH Zurich, Zurich, Switzerland
| | - Karuna Aurel Kanes
- Department of Chemistry, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany;
| | - Liaisan Khasanova
- Department of Chemistry, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany;
| | - Dmitry Momotenko
- Department of Chemistry, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany;
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16
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Ma S, Dahiya AS, Dahiya R. Out-of-Plane Electronics on Flexible Substrates Using Inorganic Nanowires Grown on High-Aspect-Ratio Printed Gold Micropillars. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2210711. [PMID: 37178312 DOI: 10.1002/adma.202210711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/06/2023] [Indexed: 05/15/2023]
Abstract
Out-of-plane or 3D electronics on flexible substrates are an interesting direction that can enable novel solutions such as efficient bioelectricity generation and artificial retina. However, the development of devices with such architectures is limited by the lack of suitable fabrication techniques. Additive manufacturing (AM) can but often fail to provide high-resolution, sub-micrometer 3D architectures. Herein, the optimization of a drop-on-demand (DoD), high-resolution electrohydrodynamic (EHD)-based jet printing method for generating 3D gold (Au) micropillars is reported. Libraries of Au micropillar electrode arrays (MEAs) reaching a maximum height of 196 µm and a maximum aspect ratio of 52 are printed. Further, by combining AM with the hydrothermal growth method, a seedless synthesis of zinc oxide (ZnO) nanowires (NWs) on the printed Au MEAs is demonstrated. The developed hybrid approach leads to hierarchical light-sensitive NW-connected networks exhibiting favorable ultraviolet (UV) sensing as demonstrated via fabricating flexible photodetectors (PDs). The 3D PDs exhibit an excellent omnidirectional light-absorption ability and thus, maintain high photocurrents over wide light incidence angles (±90°). Lastly, the PDs are tested under both concave and convex bending at 40 mm, showing excellent mechanical flexibility.
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Affiliation(s)
- Sihang Ma
- James Watt School of Engineering, University of Glasgow, Glasgow, G12 8QQ, UK
| | | | - Ravinder Dahiya
- Bendable Electronics and Sustainable Technologies (BEST) Group, Electrical and Computer Engineering Department, Northeastern University, Boston, MA, 02115, USA
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17
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Menétrey M, van Nisselroy C, Xu M, Hengsteler J, Spolenak R, Zambelli T. Microstructure-driven electrical conductivity optimization in additively manufactured microscale copper interconnects. RSC Adv 2023; 13:13575-13585. [PMID: 37152573 PMCID: PMC10155493 DOI: 10.1039/d3ra00611e] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 04/04/2023] [Indexed: 05/09/2023] Open
Abstract
As the microelectronics field pushes to increase device density through downscaling component dimensions, various novel micro- and nano-scale additive manufacturing technologies have emerged to expand the small scale design space. These techniques offer unprecedented freedom in designing 3D circuitry but have not yet delivered device-grade materials. To highlight the complex role of processing on the quality and microstructure of AM metals, we report the electrical properties of micrometer-scale copper interconnects fabricated by Fluid Force Microscopy (FluidFM) and Electrohydrodynamic-Redox Printing (EHD-RP). Using a thin film-based 4-terminal testing chip developed for the scope of this study, the electrical resistance of as-printed metals is directly related to print strategies and the specific morphological and microstructural features. Notably, the chip requires direct synthesis of conductive structures on an insulating substrate, which is shown for the first time in the case of FluidFM. Finally, we demonstrate the unique ability of EHD-RP to tune the materials resistivity by one order of magnitude solely through printing voltage. Through its novel electrical characterization approach, this study offers unique insight into the electrical properties of micro- and submicrometer-sized copper interconnects and steps towards a deeper understanding of micro AM metal properties for advanced electronics applications.
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Affiliation(s)
- Maxence Menétrey
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich Vladimir-Prelog-Weg 1-5/10 8093 Zürich Switzerland
| | - Cathelijn van Nisselroy
- Laboratory of Biosensors and Bioelectronics, Department of Information Technology and Electrical Engineering, ETH Zürich Gloriastrasse 35 8092 Zürich Switzerland
| | - Mengjia Xu
- Laboratory of Biosensors and Bioelectronics, Department of Information Technology and Electrical Engineering, ETH Zürich Gloriastrasse 35 8092 Zürich Switzerland
| | - Julian Hengsteler
- Laboratory of Biosensors and Bioelectronics, Department of Information Technology and Electrical Engineering, ETH Zürich Gloriastrasse 35 8092 Zürich Switzerland
| | - Ralph Spolenak
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich Vladimir-Prelog-Weg 1-5/10 8093 Zürich Switzerland
| | - Tomaso Zambelli
- Laboratory of Biosensors and Bioelectronics, Department of Information Technology and Electrical Engineering, ETH Zürich Gloriastrasse 35 8092 Zürich Switzerland
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18
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Zeng M, Du Y, Jiang Q, Kempf N, Wei C, Bimrose MV, Tanvir ANM, Xu H, Chen J, Kirsch DJ, Martin J, Wyatt BC, Hayashi T, Saeidi-Javash M, Sakaue H, Anasori B, Jin L, McMurtrey MD, Zhang Y. High-throughput printing of combinatorial materials from aerosols. Nature 2023; 617:292-298. [PMID: 37165239 PMCID: PMC10172128 DOI: 10.1038/s41586-023-05898-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 02/28/2023] [Indexed: 05/12/2023]
Abstract
The development of new materials and their compositional and microstructural optimization are essential in regard to next-generation technologies such as clean energy and environmental sustainability. However, materials discovery and optimization have been a frustratingly slow process. The Edisonian trial-and-error process is time consuming and resource inefficient, particularly when contrasted with vast materials design spaces1. Whereas traditional combinatorial deposition methods can generate material libraries2,3, these suffer from limited material options and inability to leverage major breakthroughs in nanomaterial synthesis. Here we report a high-throughput combinatorial printing method capable of fabricating materials with compositional gradients at microscale spatial resolution. In situ mixing and printing in the aerosol phase allows instantaneous tuning of the mixing ratio of a broad range of materials on the fly, which is an important feature unobtainable in conventional multimaterials printing using feedstocks in liquid-liquid or solid-solid phases4-6. We demonstrate a variety of high-throughput printing strategies and applications in combinatorial doping, functional grading and chemical reaction, enabling materials exploration of doped chalcogenides and compositionally graded materials with gradient properties. The ability to combine the top-down design freedom of additive manufacturing with bottom-up control over local material compositions promises the development of compositionally complex materials inaccessible via conventional manufacturing approaches.
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Affiliation(s)
- Minxiang Zeng
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, USA
- Department of Chemical Engineering, Texas Tech University, Lubbock, TX, USA
| | - Yipu Du
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, USA
| | - Qiang Jiang
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, USA
| | - Nicholas Kempf
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, USA
| | - Chen Wei
- Department of Mechanical and Aerospace Engineering, University of California Los Angeles, Los Angeles, CA, USA
| | - Miles V Bimrose
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, USA
- Department of Mechanical Science and Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA
| | - A N M Tanvir
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, USA
| | - Hengrui Xu
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, USA
| | - Jiahao Chen
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, USA
| | - Dylan J Kirsch
- Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, USA
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, USA
| | - Joshua Martin
- Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, USA
| | - Brian C Wyatt
- Department of Mechanical and Energy Engineering and Integrated Nanosystems Development Institute, Purdue School of Engineering and Technology, Indiana University-Purdue University Indianapolis, Indianapolis, IN, USA
| | - Tatsunori Hayashi
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, USA
| | - Mortaza Saeidi-Javash
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, USA
- Department of Mechanical and Aerospace Engineering, California State University Long Beach, Long Beach, CA, USA
| | - Hirotaka Sakaue
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, USA
| | - Babak Anasori
- Department of Mechanical and Energy Engineering and Integrated Nanosystems Development Institute, Purdue School of Engineering and Technology, Indiana University-Purdue University Indianapolis, Indianapolis, IN, USA
| | - Lihua Jin
- Department of Mechanical and Aerospace Engineering, University of California Los Angeles, Los Angeles, CA, USA
| | | | - Yanliang Zhang
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, USA.
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19
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Mass spectrometry in materials synthesis. Trends Analyt Chem 2023. [DOI: 10.1016/j.trac.2023.117010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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20
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Peng Y, Li D, Yang X, Ma Z, Mao Z. A Review on Electrohydrodynamic (EHD) Pump. MICROMACHINES 2023; 14:321. [PMID: 36838020 PMCID: PMC9963539 DOI: 10.3390/mi14020321] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/16/2023] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
In recent years, functional fluidic and gas electrohydrodynamic (EHD) pumps have received considerable attention due to their remarkable features, such as simple structure, quiet operation, and energy-efficient utilization. EHD pumps can be applied in various industrial applications, including flow transfer, thermal management, and actuator drive. In this paper, the authors reviewed the literature surrounding functional fluidic and gas EHD pumps regarding the following aspects: the initial observation of the EHD effect, mathematical modeling, and the choice of pump structure, electrode configuration, and working medium. Based on the review, we present a summary of the development and latest research on EHD pumps. This paper provides a critical analysis of the current limitations of EHD pumps and identifies potential areas for future research. Additionally, the potential application of artificial intelligence in the field of EHD pumps is discussed in the context of its cross-disciplinary nature. Many reviews on EHD pumps focus on rigid pumps, and the contribution of this review is to summarize and analyze soft EHD pumps that have received less attention, thus reducing the knowledge gap.
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Affiliation(s)
- Yanhong Peng
- Department of Information and Communication Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Dongze Li
- Department of Intelligent Science and Technology, College of Computer Science and Technology, Qingdao University, 308 Ning Xia Lu, Laoshan District, Qingdao 266071, China
| | - Xiaoyan Yang
- School of Computer Science, The University of Sydney, Sydney, NSW 2006, Australia
| | - Zisu Ma
- School of Computer Science, The University of Sydney, Sydney, NSW 2006, Australia
| | - Zebing Mao
- Department of Mechanical Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama Meguro-Ku, Tokyo 152-8550, Japan
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21
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Nydegger M, Pruška A, Galinski H, Zenobi R, Reiser A, Spolenak R. Additive manufacturing of Zn with submicron resolution and its conversion into Zn/ZnO core-shell structures. NANOSCALE 2022; 14:17418-17427. [PMID: 36385575 PMCID: PMC9714770 DOI: 10.1039/d2nr04549d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
Electrohydrodynamic redox 3D printing (EHD-RP) is an additive manufacturing (AM) technique with submicron resolution and multi-metal capabilities, offering the possibility to switch chemistry during deposition "on-the-fly". Despite the potential for synthesizing a large range of metals by electrochemical small-scale AM techniques, to date, only Cu and Ag have been reproducibly deposited by EHD-RP. Here, we extend the materials palette available to EHD-RP by using aqueous solvents instead of organic solvents, as used previously. We demonstrate deposition of Cu and Zn from sacrificial anodes immersed in acidic aqueous solvents. Mass spectrometry indicates that the choice of the solvent is important to the deposition of pure Zn. Additionally, we show that the deposited Zn structures, 250 nm in width, can be partially converted into semiconducting ZnO structures by oxidation at 325 °C in air.
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Affiliation(s)
- Mirco Nydegger
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, Zürich 8093, Switzerland.
| | - Adam Pruška
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 3, CH-8093, Zurich, Switzerland
| | - Henning Galinski
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, Zürich 8093, Switzerland.
| | - Renato Zenobi
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 3, CH-8093, Zurich, Switzerland
| | - Alain Reiser
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, Zürich 8093, Switzerland.
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Ralph Spolenak
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, Zürich 8093, Switzerland.
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22
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Menétrey M, Koch L, Sologubenko A, Gerstl S, Spolenak R, Reiser A. Targeted Additive Micromodulation of Grain Size in Nanocrystalline Copper Nanostructures by Electrohydrodynamic Redox 3D Printing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2205302. [PMID: 36328737 DOI: 10.1002/smll.202205302] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/14/2022] [Indexed: 06/16/2023]
Abstract
The control of materials' microstructure is both a necessity and an opportunity for micro/nanometer-scale additive manufacturing technologies. On the one hand, optimization of purity and defect density of printed metals is a prerequisite for their application in microfabrication. On the other hand, the additive approach to materials deposition with highest spatial resolution offers unique opportunities for the fabrication of materials with complex, 3D graded composition or microstructure. As a first step toward both-optimization of properties and site-specific tuning of microstructure-an overview of the wide range of microstructure accessed in pure copper (up to >99.9 at.%) by electrohydrodynamic redox 3D printing is presented, and on-the-fly modulation of grain size in copper with smallest segments ≈400 nm in length is shown. Control of microstructure and materials properties by in situ adjustment of the printing voltage is demonstrated by variation of grain size by one order of magnitude and corresponding compression strength by a factor of two. Based on transmission electron microscopy and atom probe tomography, it is suggested that the small grain size is a direct consequence of intermittent solvent drying at the growth interface at low printing voltages, while larger grains are enabled by the permanent presence of solvent at higher potentials.
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Affiliation(s)
- Maxence Menétrey
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, Zürich, 8093, Switzerland
| | - Lukas Koch
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, Zürich, 8093, Switzerland
| | - Alla Sologubenko
- Scientific Center for Optical and Electron Microscopy (ScopeM), ETH Zürich, Otto-Stern-Weg 3, Zürich, 8093, Switzerland
| | - Stephan Gerstl
- Scientific Center for Optical and Electron Microscopy (ScopeM), ETH Zürich, Otto-Stern-Weg 3, Zürich, 8093, Switzerland
| | - Ralph Spolenak
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, Zürich, 8093, Switzerland
| | - Alain Reiser
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, Zürich, 8093, Switzerland
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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23
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Chandrasekaran S, Jayakumar A, Velu R. A Comprehensive Review on Printed Electronics: A Technology Drift towards a Sustainable Future. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4251. [PMID: 36500874 PMCID: PMC9740290 DOI: 10.3390/nano12234251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
Printable electronics is emerging as one of the fast-growing engineering fields with a higher degree of customization and reliability. Ironically, sustainable printing technology is essential because of the minimal waste to the environment. To move forward, we need to harness the fabrication technology with the potential to support traditional process. In this review, we have systematically discussed in detail the various manufacturing materials and processing technologies. The selection criteria for the assessment are conducted systematically on the manuscript published in the last 10 years (2012-2022) in peer-reviewed journals. We have discussed the various kinds of printable ink which are used for fabrication based on nanoparticles, nanosheets, nanowires, molecular formulation, and resin. The printing methods and technologies used for printing for each technology are also reviewed in detail. Despite the major development in printing technology some critical challenges needed to be addressed and critically assessed. One such challenge is the coffee ring effect, the possible methods to reduce the effect on modulating the ink environmental condition are also indicated. Finally, a summary of printable electronics for various applications across the diverse industrial manufacturing sector is presented.
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Affiliation(s)
- Sridhar Chandrasekaran
- Center for System Design, Department of Electronics and Communication Engineering, Chennai Institute of Technology, Kundrathur, Chennai 600069, India
| | - Arunkumar Jayakumar
- Green Vehicle Technology Research Centre, Department of Automobile Engineering, SRM-Institute of Science and Technology, Kattankulathur 603203, India
| | - Rajkumar Velu
- Additive Manufacturing Research Laboratory (AMRL), Indian Institute of Technology Jammu, Jammu 181221, Jammu & Kashmir, India
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24
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Hsiao K, Lee BJ, Samuelsen T, Lipkowitz G, Kronenfeld JM, Ilyn D, Shih A, Dulay MT, Tate L, Shaqfeh ESG, DeSimone JM. Single-digit-micrometer-resolution continuous liquid interface production. SCIENCE ADVANCES 2022; 8:eabq2846. [PMID: 36383664 PMCID: PMC9668307 DOI: 10.1126/sciadv.abq2846] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 09/28/2022] [Indexed: 05/29/2023]
Abstract
To date, a compromise between resolution and print speed has rendered most high-resolution additive manufacturing technologies unscalable with limited applications. By combining a reduction lens optics system for single-digit-micrometer resolution, an in-line camera system for contrast-based sharpness optimization, and continuous liquid interface production (CLIP) technology for high scalability, we introduce a single-digit-micrometer-resolution CLIP-based 3D printer that can create millimeter-scale 3D prints with single-digit-micrometer-resolution features in just a few minutes. A simulation model is developed in parallel to probe the fundamental governing principles in optics, chemical kinetics, and mass transport in the 3D printing process. A print strategy with tunable parameters informed by the simulation model is adopted to achieve both the optimal resolution and the maximum print speed. Together, the high-resolution 3D CLIP printer has opened the door to various applications including, but not limited to, biomedical, MEMS, and microelectronics.
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Affiliation(s)
- Kaiwen Hsiao
- Department of Radiology, Stanford University, Stanford, CA 94305, USA
| | - Brian J. Lee
- Department of Radiology, Stanford University, Stanford, CA 94305, USA
- Department of Mechanical Engineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Tim Samuelsen
- Department of Mechanical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Gabriel Lipkowitz
- Department of Mechanical Engineering, Stanford University, Stanford, CA 94305, USA
| | | | - Dan Ilyn
- Department of Mechanical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Audrey Shih
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Maria T. Dulay
- Department of Radiology, Stanford University, Stanford, CA 94305, USA
| | - Lee Tate
- Digital Light Innovations, Austin, TX 78728, USA
| | - Eric S. G. Shaqfeh
- Department of Mechanical Engineering, Stanford University, Stanford, CA 94305, USA
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Joseph M. DeSimone
- Department of Radiology, Stanford University, Stanford, CA 94305, USA
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
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25
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Duan Y, Yang W, Xiao J, Gao J, Wei L, Huang Y, Yin Z. High density, addressable electrohydrodynamic printhead made of a silicon plate and polymer nozzle structure. LAB ON A CHIP 2022; 22:3877-3884. [PMID: 36073597 DOI: 10.1039/d2lc00624c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Electrohydrodynamic (EHD) printing is a promising micro/nanofabrication technique, due to its ultra-high resolution and wide material applicability. However, it suffers from low printing efficiency which urgently calls for a high density and addressable nozzle array. This paper presents a nozzle array chip made of a silicon plate and polymer nozzle structure, where the large silicon plate is conducive to a uniform spatial electric field distribution, and the polymer SU8 nozzle can inhibit tip discharge due to its insulating character and liquid flooding as SU8 is hydrophobic. By carefully designing the nozzle array structure via simulation, and fabricating it through MEMS technology, a high-density nozzle array chip has been achieved which can generate very uniform dots without crosstalk. Meanwhile, by adding extractors underneath the nozzle array, and utilizing a digital switch array to tune their on/off state, addressable printing has been realized. This novel printhead design has solved the discharge, liquid flooding, and crosstalk behavior in EHD nozzle arrays, and is compatible with traditional silicon-based MEMS technology, which will promote the practical applications of EHD printing in micro/nanoelectronics, biomedical/energy devices, etc.
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Affiliation(s)
- Yongqing Duan
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, P. R. China.
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Weili Yang
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, P. R. China.
| | - Jingjing Xiao
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, P. R. China.
| | - Jixin Gao
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, P. R. China.
| | - Lai Wei
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, P. R. China.
| | - YongAn Huang
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, P. R. China.
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Zhouping Yin
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, P. R. China.
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan 430074, China
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26
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Duan Y, Li H, Yang W, Shao Z, Wang Q, Huang Y, Yin Z. Mode-tunable, micro/nanoscale electrohydrodynamic deposition techniques for optoelectronic device fabrication. NANOSCALE 2022; 14:13452-13472. [PMID: 36082930 DOI: 10.1039/d2nr03049g] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The rapid development of fascinating new optoelectronic materials and devices calls for the innovative production of micro/nanostructures in a high-resolution, large-scale, low-cost fashion, preferably compatible with flexible/wearable applications. Powerful electrohydrodynamic (EHD) deposition techniques, which generate micro/nanostructures using high electrical forces, exhibit unique advantages in high printing resolution (<1 μm), tunable printing modes (electrospray for films, electrospinning for fibers and EHD jet printing for dots), and wide material applicability (viscosity 1-10 000 cps), making them attractive in the fabrication of high-density and high-tech optoelectronic devices. This review highlights recent advances related to EHD-deposited optoelectronics, ranging from solar cells, photodetectors, and light-emitting diodes, to transparent electrodes, with detailed descriptions of the EHD-based jetting mechanism, ink formulation requirements and corresponding jetting modes to obtain functional micro/nanostructures. Finally, a brief summary and an outlook on the future perspectives are proposed.
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Affiliation(s)
- Yongqing Duan
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Huayang Li
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Weili Yang
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Zhilong Shao
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Qilu Wang
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan 430074, China
| | - YongAn Huang
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Zhouping Yin
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
- Flexible Electronics Research Center, Huazhong University of Science and Technology, Wuhan 430074, China
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27
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Xu C, Liu H, Yang S. Drawing at the Nanoscale through Macroscopic Movement. SMALL METHODS 2022; 6:e2200293. [PMID: 35478330 DOI: 10.1002/smtd.202200293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/06/2022] [Indexed: 06/14/2023]
Abstract
Nanopatterns are important for applications in various nanodevice fields. Existing nanopatterning techniques mainly directly manufacture the nanopatterns through various lithographic methods, which usually are laborious, time-consuming, and need expensive equipment. Here, an extremely simple drawing at the nanoscale (DAN) concept to indirectly fabricate rational nanopatterns through controlling the macroscopic movement of the substrate , is demonstrated. The structure of the nanopatterns is completely determined by and can be shrunk by millions of times from the moving track of the substrate. Multiple surface nanopatterns of different materials with accurately tailorable relative positions can be simply stacked together by moving the substrate by macroscopic distances during different DAN processes. In combination with sophisticated lithographic methods, the DAN method is anticipated to enable substantial advances in nanofabrication.
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Affiliation(s)
- Chao Xu
- Institute for Composites Science Innovation, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Hong Liu
- Institute for Composites Science Innovation, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Shikuan Yang
- Institute for Composites Science Innovation, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Department of Medical Oncology, The first affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
- State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou, 310027, China
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28
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Reiser A, Schuster R, Spolenak R. Nanoscale electrochemical 3D deposition of cobalt with nanosecond voltage pulses in an STM. NANOSCALE 2022; 14:5579-5588. [PMID: 35343988 DOI: 10.1039/d1nr08409g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
To explore a minimal feature size of <100 nm with electrochemical additive manufacturing, we use a strategy originally applied to microscale electrochemical machining for the nanoscale deposition of Co on Au. The concept's essence is the localization of electrochemical reactions below a probe during polarization with ns-long voltage pulses. As shown, a confinement that exceeds that predicted by a simple model based on the time constant for one-dimensional double layer charging enables a feature size of <100 nm for 2D patterning. We further indirectly verify the potential for out-of-plane deposition by tracking growth curves of high-aspect-ratio deposits. Importantly, we report a lack of anodic stability of Au tips used for patterning. As an inert probe is the prerequisite for controlled structuring, we experimentally verify an increased resistance of Pt probes against degradation. Consequently, the developed setup and processes show a path towards reproducible direct 2D and 3D patterning of metals at the nanoscale.
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Affiliation(s)
- Alain Reiser
- Laboratory for Nanometallurgy, Department of Materials, Federal Institute of Technology (ETH) Zürich, 8093 Zürich, Switzerland.
| | - Rolf Schuster
- Institute of Physical Chemistry, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
| | - Ralph Spolenak
- Laboratory for Nanometallurgy, Department of Materials, Federal Institute of Technology (ETH) Zürich, 8093 Zürich, Switzerland.
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29
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Shen C, Zhu Z, Zhu D, van Nisselroy C, Zambelli T, Momotenko D. Electrochemical 3D printing of Ni-Mn and Ni-Co alloy with FluidFM. NANOTECHNOLOGY 2022; 33:265301. [PMID: 35240592 DOI: 10.1088/1361-6528/ac5a80] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 03/03/2022] [Indexed: 06/14/2023]
Abstract
Additive manufacturing can realize almost any designed geometry, enabling the fabrication of innovative products for advanced applications. Local electrochemical plating is a powerful approach for additive manufacturing of metal microstructures; however, previously reported data have been mostly obtained with copper, and only a few cases have been reported with other elements. In this study, we assessed the ability of fluidic force microscopy to produce Ni-Mn and Ni-Co alloy structures. Once the optimal deposition potential window was determined, pillars with relatively smooth surfaces were obtained. The printing process was characterized by printing rates in the range of 50-60 nm s-1. Cross-sections exposed by focused ion beam showed highly dense microstructures, while the corresponding face scan with energy-dispersive x-ray spectroscopy spectra revealed a uniform distribution of alloy components.
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Affiliation(s)
- Chunjian Shen
- College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, People's Republic of China
- Laboratory of Biosensors and Bioelectronics, ETH Zürich, Gloriastrasse 35, 8092, Zurich, Switzerland
| | - Zengwei Zhu
- College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, People's Republic of China
| | - Di Zhu
- College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, People's Republic of China
| | - Cathelijn van Nisselroy
- Laboratory of Biosensors and Bioelectronics, ETH Zürich, Gloriastrasse 35, 8092, Zurich, Switzerland
| | - Tomaso Zambelli
- Laboratory of Biosensors and Bioelectronics, ETH Zürich, Gloriastrasse 35, 8092, Zurich, Switzerland
| | - Dmitry Momotenko
- Department of Chemistry, Carl von Ossietzky University of Oldenburg, Oldenburg, D-26129, Germany
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30
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Zheng W, Xie R, Liang X, Liang Q. Fabrication of Biomaterials and Biostructures Based On Microfluidic Manipulation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2105867. [PMID: 35072338 DOI: 10.1002/smll.202105867] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 12/22/2021] [Indexed: 06/14/2023]
Abstract
Biofabrication technologies are of importance for the construction of organ models and functional tissue replacements. Microfluidic manipulation, a promising biofabrication technique with micro-scale resolution, can not only help to realize the fabrication of specific microsized structures but also build biomimetic microenvironments for biofabricated tissues. Therefore, microfluidic manipulation has attracted attention from researchers in the manipulation of particles and cells, biochemical analysis, tissue engineering, disease diagnostics, and drug discovery. Herein, biofabrication based on microfluidic manipulation technology is reviewed. The application of microfluidic manipulation technology in the manufacturing of biomaterials and biostructures with different dimensions and the control of the microenvironment is summarized. Finally, current challenges are discussed and a prospect of microfluidic manipulation technology is given. The authors hope this review can provide an overview of microfluidic manipulation technologies used in biofabrication and thus steer the current efforts in this field.
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Affiliation(s)
- Wenchen Zheng
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Ruoxiao Xie
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Xiaoping Liang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangdong, 510006, China
| | - Qionglin Liang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
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31
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Dong WX, Lai YY, Hu J. Detecting spatial chirp signals by Luneburg lens based transformation medium. OPTICS EXPRESS 2022; 30:9773-9789. [PMID: 35299394 DOI: 10.1364/oe.453937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 02/22/2022] [Indexed: 06/14/2023]
Abstract
Gradient refractive index (GRIN) lens-based chirp signal chirpiness detection usually relies on the fractional Fourier transform (FRFT) functionality of a quadratic GRIN lens and is limited by paraxial conditions. In this paper, a non-FRFT mechanism-based chirpiness detection GRIN lens is proposed that converts the Luneburg lens' focus capacity of input plane waves to the designed lens' focusing of input chirp waves using transformation optics, and the source chirpiness can be obtained by sweeping the illumination wavelength rather than locating the focusing pulse, consequently greatly increasing the upper limit of the chirpiness detection range. The feasibility and robustness of the method are verified through numerical simulations.
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32
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Cho SY, Ho DH, Choi YY, Lim S, Lee S, Suk JW, Jo SB, Cho JH. A general fruit acid chelation route for eco-friendly and ambient 3D printing of metals. Nat Commun 2022; 13:104. [PMID: 35256609 PMCID: PMC8901924 DOI: 10.1038/s41467-021-27730-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 11/29/2021] [Indexed: 11/09/2022] Open
Abstract
AbstractRecent advances in metal additive manufacturing (AM) have provided new opportunities for prompt designs of prototypes and facile personalization of products befitting the fourth industrial revolution. In this regard, its feasibility of becoming a green technology, which is not an inherent aspect of AM, is gaining more interests. A particular interest in adapting and understanding of eco-friendly ingredients can set its important groundworks. Here, we demonstrate a water-based solid-phase binding agent suitable for binder jetting 3D printing of metals. Sodium salts of common fruit acid chelators form stable metal-chelate bridges between metal particles, enabling elaborate 3D printing of metals with improved strengths. Even further reductions in the porosity between the metal particles are possible through post-treatments. A compatibility of this chelation chemistry with variety of metals is also demonstrated. The proposed mechanism for metal 3D printing can open up new avenues for consumer-level personalized 3D printing of metals.
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33
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Mea H, Wan J. Microfluidics-enabled functional 3D printing. BIOMICROFLUIDICS 2022; 16:021501. [PMID: 35282033 PMCID: PMC8896890 DOI: 10.1063/5.0083673] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 02/18/2022] [Indexed: 05/14/2023]
Abstract
Microfluidic technology has established itself as a powerful tool to enable highly precise spatiotemporal control over fluid streams for mixing, separations, biochemical reactions, and material synthesis. 3D printing technologies such as extrusion-based printing, inkjet, and stereolithography share similar length scales and fundamentals of fluid handling with microfluidics. The advanced fluidic manipulation capabilities afforded by microfluidics can thus be potentially leveraged to enhance the performance of existing 3D printing technologies or even develop new approaches to additive manufacturing. This review discusses recent developments in integrating microfluidic elements with several well-established 3D printing technologies, highlighting the trend of using microfluidic approaches to achieve functional and multimaterial 3D printing as well as to identify potential future research directions in this emergent area.
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Affiliation(s)
- H. Mea
- Department of Chemical Engineering, University of California at Davis, Davis, California 95616, USA
| | - J. Wan
- Department of Chemical Engineering, University of California at Davis, Davis, California 95616, USA
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34
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Tomova Z, Vlahova A, Stoeva I, Zhekov Y, Vasileva E. Metal Ion Emission and Corrosion Resistance of 3D-Printed Dental Alloy. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.8577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Background: Prosthetic rehabilitation requires application of materials with different chemical, mechanical and biological properties which must provide longevity, esthetics, and safe use. Corrosion resistance and metal ion emission are the major factors defining biocompatibility of base dental alloys. Digitalization in Dentistry leads to development of new materials suitable for CAD/CAM technologies. Cobalt-chromium powder alloys are used for additive manufacturing of PFM crowns.
The aim of this study is to evaluate corrosion resistance and metal ion emission of Cobalt-chromium dental alloy for 3D printing.
Materials and methods: 35 metal copings were designed using digital files of intraoral scans of 35 patients. CoCr dental alloy EOS CobaltChrome SP2 (EOS, Germany) was used to produce the copings by DMLS (direct laser metal sintering). Tests for presence of free Cobalt ions were conducted at several stages of the production process. Open circuit potential measurements were conducted 2 hours, 24 hours, and 7 days after placing the copings in artificial saliva. Metal ion emission was assessed by inductively coupled plasma mass spectrometry (ICP–MS) after 24 hour- and 7 day-period of stay in the solution.
Results: Tests for free Cobalt ions were positive at all stages during production of the metal copings. Eocp measurements showed high corrosion resistance which increased in time. ICP-MS showed significantly higher amount of cobalt and chromium ions after 7-day period of stay compared to 24-hour period.
Conclusion: Studied alloy showed high corrosion resistance at in vitro conditions. Detected ion emission requires further investigations on the biological properties.
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35
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Park Y, Yun I, Chung WG, Park W, Lee DH, Park J. High-Resolution 3D Printing for Electronics. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2104623. [PMID: 35038249 PMCID: PMC8922115 DOI: 10.1002/advs.202104623] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 12/04/2021] [Indexed: 05/17/2023]
Abstract
The ability to form arbitrary 3D structures provides the next level of complexity and a greater degree of freedom in the design of electronic devices. Since recent progress in electronics has expanded their applicability in various fields in which structural conformability and dynamic configuration are required, high-resolution 3D printing technologies can offer significant potential for freeform electronics. Here, the recent progress in novel 3D printing methods for freeform electronics is reviewed, with providing a comprehensive study on 3D-printable functional materials and processes for various device components. The latest advances in 3D-printed electronics are also reviewed to explain representative device components, including interconnects, batteries, antennas, and sensors. Furthermore, the key challenges and prospects for next-generation printed electronics are considered, and the future directions are explored based on research that has emerged recently.
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Affiliation(s)
- Young‐Geun Park
- Department of Materials Science and EngineeringYonsei UniversitySeoul03722Republic of Korea
- Center for NanomedicineInstitute for Basic Science (IBS)Seoul03722Republic of Korea
- Graduate Program of Nano Biomedical Engineering (NanoBME)Advanced Science InstituteYonsei UniversitySeoul03722Republic of Korea
| | - Insik Yun
- Department of Materials Science and EngineeringYonsei UniversitySeoul03722Republic of Korea
- Center for NanomedicineInstitute for Basic Science (IBS)Seoul03722Republic of Korea
- Graduate Program of Nano Biomedical Engineering (NanoBME)Advanced Science InstituteYonsei UniversitySeoul03722Republic of Korea
| | - Won Gi Chung
- Department of Materials Science and EngineeringYonsei UniversitySeoul03722Republic of Korea
- Center for NanomedicineInstitute for Basic Science (IBS)Seoul03722Republic of Korea
- Graduate Program of Nano Biomedical Engineering (NanoBME)Advanced Science InstituteYonsei UniversitySeoul03722Republic of Korea
| | - Wonjung Park
- Department of Materials Science and EngineeringYonsei UniversitySeoul03722Republic of Korea
- Center for NanomedicineInstitute for Basic Science (IBS)Seoul03722Republic of Korea
- Graduate Program of Nano Biomedical Engineering (NanoBME)Advanced Science InstituteYonsei UniversitySeoul03722Republic of Korea
| | - Dong Ha Lee
- Department of Materials Science and EngineeringYonsei UniversitySeoul03722Republic of Korea
- Center for NanomedicineInstitute for Basic Science (IBS)Seoul03722Republic of Korea
- Graduate Program of Nano Biomedical Engineering (NanoBME)Advanced Science InstituteYonsei UniversitySeoul03722Republic of Korea
| | - Jang‐Ung Park
- Department of Materials Science and EngineeringYonsei UniversitySeoul03722Republic of Korea
- Center for NanomedicineInstitute for Basic Science (IBS)Seoul03722Republic of Korea
- Graduate Program of Nano Biomedical Engineering (NanoBME)Advanced Science InstituteYonsei UniversitySeoul03722Republic of Korea
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36
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Aarts M, Reiser A, Spolenak R, Alarcon-Llado E. Confined pulsed diffuse layer charging for nanoscale electrodeposition with an STM. NANOSCALE ADVANCES 2022; 4:1182-1190. [PMID: 35308601 PMCID: PMC8846379 DOI: 10.1039/d1na00779c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
Regulating the state of the solid-liquid interface by means of electric fields is a powerful tool to control electrochemistry. In scanning probe systems, this can be confined closely to a scanning (nano)electrode by means of fast potential pulses, providing a way to probe the interface and control electrochemical reactions locally, as has been demonstrated in nanoscale electrochemical etching. For this purpose, it is important to know the spatial extent of the interaction between pulses applied to the tip, and the substrate. In this paper we use a framework of diffuse layer charging to describe the localization of electrical double layer charging in response to a potential pulse at the probe. Our findings are in good agreement with literature values obtained in electrochemical etching. We show that the pulse can be much more localized by limiting the diffusivity of the ions present in solution, by confined electrodeposition of cobalt in a dimethyl sulfoxide solution, using an electrochemical scanning tunnelling microscope. Finally, we demonstrate the deposition of cobalt nanostructures (<100 nm) using this method. The presented framework therefore provides a general route for predicting and controlling the time-dependent region of interaction between an electrochemical scanning probe and the surface.
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Affiliation(s)
- Mark Aarts
- Center for Nanophotonics, AMOLF Science Park 109 Amsterdam Netherlands
| | - Alain Reiser
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich Vladimir-Prelog-Weg 1-5/10 Zürich Switzerland
| | - Ralph Spolenak
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich Vladimir-Prelog-Weg 1-5/10 Zürich Switzerland
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37
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Cheng H, Yang T, Edwards M, Tang S, Xu S, Yan X. Picomole-Scale Transition Metal Electrocatalysis Screening Platform for Discovery of Mild C-C Coupling and C-H Arylation through in Situ Anodically Generated Cationic Pd. J Am Chem Soc 2022; 144:1306-1312. [PMID: 35015550 DOI: 10.1021/jacs.1c11179] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Development of new transition-metal-catalyzed electrochemistry promises to improve overall synthetic efficiency. Here, we describe the first integrated platform for online screening of electrochemical transition-metal catalysis. It utilizes the intrinsic electrochemical capabilities of nanoelectrospray ionization mass spectrometry (nano-ESI-MS) and picomole-scale anodic corrosion of a Pd electrode to generate and evaluate highly efficient cationic catalysts for mild electrocatalysis. We demonstrate the power of the novel electrocatalysis platform by (1) identifying electrolytic Pd-catalyzed Suzuki coupling at room temperature, (2) discovering Pd-catalyzed electrochemical C-H arylation in the absence of external oxidant or additive, (3) developing electrolyzed Suzuki coupling/C-H arylation cascades, and (4) achieving late-stage functionalization of two drug molecules by the newly developed mild electrocatalytic C-H arylation. More importantly, the scale-up reactions confirm that new electrochemical pathways discovered by nano-ESI can be implemented under the conventional electrolytic reaction conditions. This approach enables in situ mechanistic studies by capturing various intermediates including transient transition metal species by MS, and thus uncovering the critical role of anodically generated cationic Pd catalyst in promoting otherwise sluggish transmetalation in C-H arylation. The anodically generated cationic Pd with superior catalytic efficiency and novel online electrochemical screening platform hold great potential for discovering mild transition-metal-catalyzed reactions.
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Affiliation(s)
- Heyong Cheng
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States.,College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Tingyuan Yang
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Madison Edwards
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Shuli Tang
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Shiqing Xu
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Xin Yan
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
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Machine learning to empower electrohydrodynamic processing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2022; 132:112553. [DOI: 10.1016/j.msec.2021.112553] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 11/09/2021] [Accepted: 11/11/2021] [Indexed: 01/13/2023]
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39
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Hengsteler J, Lau GPS, Zambelli T, Momotenko D. Electrochemical 3D micro‐ and nanoprinting: Current state and future perspective. ELECTROCHEMICAL SCIENCE ADVANCES 2021. [DOI: 10.1002/elsa.202100123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Affiliation(s)
- Julian Hengsteler
- Laboratory of Biosensors and Bioelectronics Institute for Biomedical Engineering Zurich Switzerland
| | - Genevieve P. S. Lau
- School of Physical and Mathematical Sciences Division of Chemistry and Biological Chemistry Nanyang Technological University Singapore Singapore
| | - Tomaso Zambelli
- Laboratory of Biosensors and Bioelectronics Institute for Biomedical Engineering Zurich Switzerland
| | - Dmitry Momotenko
- Department of Chemistry Carl von Ossietzky University of Oldenburg Oldenburg Germany
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Oh E, Golnabi R, Walker DA, Mirkin CA. Electrochemical Polymer Pen Lithography. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2100662. [PMID: 34110664 DOI: 10.1002/smll.202100662] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/23/2021] [Indexed: 06/12/2023]
Abstract
The development of a massively parallel lithographic technique called electrochemical polymer pen lithography is reported. Pyramidal pen arrays, consisting of more than 10 000 hydrogel pens loaded with metal salts, are integrated into a three-electrode cell and used to locally reduce ions at each pen tip. This system enables high-throughput patterning of a variety of metallic inks (e.g., Ni2+ , Pt2+ , Ag+ ) on the nanometer to micrometer length scale. By incorporating a z-direction piezo actuator, the extension length and dwell time can be used to precisely define feature dimensions (210 to 10 µm in width, and up to 900 nm in height, thus far). Furthermore, by controlling the potential and precursor concentrations, more than one element can be simultaneously deposited, creating a new tool for the synthesis of alloy features, such as NiCo, which are relevant for catalysis. Importantly, this methodology enables fine control over feature size and composition in a single pattern, which may make it ultimately useful for rapid, high-throughput combinatorial screening of metallic features.
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Affiliation(s)
- EunBi Oh
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd., Evanston, IL, 60208, USA
- International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Rustin Golnabi
- International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
- Department of Materials Science and Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, IL, 60208, USA
| | - David A Walker
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd., Evanston, IL, 60208, USA
- International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Chad A Mirkin
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd., Evanston, IL, 60208, USA
- International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
- Department of Materials Science and Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, IL, 60208, USA
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41
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Jung W, Jung YH, Pikhitsa PV, Feng J, Yang Y, Kim M, Tsai HY, Tanaka T, Shin J, Kim KY, Choi H, Rho J, Choi M. Three-dimensional nanoprinting via charged aerosol jets. Nature 2021; 592:54-59. [PMID: 33790446 DOI: 10.1038/s41586-021-03353-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 02/12/2021] [Indexed: 02/01/2023]
Abstract
Three-dimensional (3D) printing1-9 has revolutionized manufacturing processes for electronics10-12, optics13-15, energy16,17, robotics18, bioengineering19-21 and sensing22. Downscaling 3D printing23 will enable applications that take advantage of the properties of micro- and nanostructures24,25. However, existing techniques for 3D nanoprinting of metals require a polymer-metal mixture, metallic salts or rheological inks, limiting the choice of material and the purity of the resulting structures. Aerosol lithography has previously been used to assemble arrays of high-purity 3D metal nanostructures on a prepatterned substrate26,27, but in limited geometries26-30. Here we introduce a technique for direct 3D printing of arrays of metal nanostructures with flexible geometry and feature sizes down to hundreds of nanometres, using various materials. The printing process occurs in a dry atmosphere, without the need for polymers or inks. Instead, ions and charged aerosol particles are directed onto a dielectric mask containing an array of holes that floats over a biased silicon substrate. The ions accumulate around each hole, generating electrostatic lenses that focus the charged aerosol particles into nanoscale jets. These jets are guided by converged electric-field lines that form under the hole-containing mask, which acts similarly to the nozzle of a conventional 3D printer, enabling 3D printing of aerosol particles onto the silicon substrate. By moving the substrate during printing, we successfully print various 3D structures, including helices, overhanging nanopillars, rings and letters. In addition, to demonstrate the potential applications of our technique, we printed an array of vertical split-ring resonator structures. In combination with other 3D-printing methods, we expect our 3D-nanoprinting technique to enable substantial advances in nanofabrication.
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Affiliation(s)
- Wooik Jung
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul, South Korea.,Department of Mechanical Engineering, Seoul National University, Seoul, South Korea
| | - Yoon-Ho Jung
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul, South Korea.,Department of Mechanical Engineering, Seoul National University, Seoul, South Korea
| | - Peter V Pikhitsa
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul, South Korea
| | - Jicheng Feng
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul, South Korea.,School of Physical Science and Technology, ShanghaiTech University, Shanghai, China
| | - Younghwan Yang
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, South Korea
| | - Minkyung Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, South Korea
| | - Hao-Yuan Tsai
- Innovation Photon Manipulation Research Team, RIKEN Center for Advanced Photonics, Wako, Japan.,Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Takuo Tanaka
- Innovation Photon Manipulation Research Team, RIKEN Center for Advanced Photonics, Wako, Japan.,Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan.,Metamaterials Laboratory, RIKEN Cluster for Pioneering Research, Wako, Japan.,Institute of Post-LED Photonics, Tokushima University, Tokushima, Japan
| | - Jooyeon Shin
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul, South Korea.,Department of Mechanical Engineering, Seoul National University, Seoul, South Korea
| | - Kwang-Yeong Kim
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul, South Korea.,Department of Mechanical Engineering, Seoul National University, Seoul, South Korea
| | - Hoseop Choi
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul, South Korea.,Department of Mechanical Engineering, Seoul National University, Seoul, South Korea.,Mechatronics R&D Center, Samsung Electronics, Hwaseong, South Korea
| | - Junsuk Rho
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, South Korea. .,Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, South Korea.
| | - Mansoo Choi
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul, South Korea. .,Department of Mechanical Engineering, Seoul National University, Seoul, South Korea.
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42
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Freitas D, Chen X, Cheng H, Davis A, Fallon B, Yan X. Recent Advances of In-Source Electrochemical Mass Spectrometry. Chempluschem 2021; 86:434-445. [PMID: 33689239 DOI: 10.1002/cplu.202100030] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 03/03/2021] [Indexed: 12/16/2022]
Abstract
Hyphenation of electrochemistry (EC) and mass spectrometry has become a powerful tool to study redox processes. Approaches that can achieve this hyphenation include integrating chromatography/electrophoresis between electroinduced redox reactions and detection of products, coupling an EC flow cell to a mass spectrometer, and performing electrochemical reactions inside the ion source of a mass spectrometer. The first two approaches have been well reviewed elsewhere. This Minireview highlights the inherent electrochemical properties of many mass spectrometry ion sources and their roles in the coupling of electrochemistry and mass spectrometric analysis. Development of modified ion sources that allow the compatibility of electrochemistry with ionization processes is also surveyed. Applications of different in-source electrochemical devices are provided including intermediate capturing, bioanalytical studies, nanoparticle formation, electrosynthesis, and electrode imaging.
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Affiliation(s)
- Dallas Freitas
- Department of Chemistry, Texas A&M University, 580 Ross St., College Station, TX 77843, USA
| | - Xi Chen
- Department of Chemistry, Texas A&M University, 580 Ross St., College Station, TX 77843, USA
| | - Heyong Cheng
- Department of Chemistry, Texas A&M University, 580 Ross St., College Station, TX 77843, USA
| | - Austin Davis
- Department of Chemistry, Texas A&M University, 580 Ross St., College Station, TX 77843, USA
| | - Blake Fallon
- Department of Chemistry, Texas A&M University, 580 Ross St., College Station, TX 77843, USA
| | - Xin Yan
- Department of Chemistry, Texas A&M University, 580 Ross St., College Station, TX 77843, USA
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43
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Hu Y. Recent progress in field-assisted additive manufacturing: materials, methodologies, and applications. MATERIALS HORIZONS 2021; 8:885-911. [PMID: 34821320 DOI: 10.1039/d0mh01322f] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Owing to its advantages of freedom to design, improved material utilization, and shortened lead time, additive manufacturing (AM) has the potential to redefine manufacturing after years of evolvement and opens new avenues to produce customized and complex-shaped products. Despite these benefits, AM still suffers problems stemmed from limited material selection, anisotropic material property, low production speed, coarse resolution, etc. In response to these problems, extensive attention has been drawn on integrating AM with fields, which mainly include magnetic field (MF), electric field (EF), and acoustic field (AF). These fields have been proved to be effective in tailoring microstructures, enhancing mechanical properties, focusing and sorting cells, serving as stimuli, etc., thus providing new opportunities to address existing problems and enable new functionalities of AM technologies. This paper presents a review on recent developments and major advances in MF-, EF-, and AF-assisted AM technologies and 4D printing method from aspects of materials, methodologies, and applications. In addition, current challenges and future trends of field-assisted AM technologies and 4D printing method are also outlined and discussed.
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Affiliation(s)
- Yingbin Hu
- Mechanical and Manufacturing Engineering Department, Miami University, Oxford, OH 45056, USA.
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44
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Li K, Zhang F, Wang D, Qiu Q, Liu M, Yu A, Cui Y. Silkworm-inspired electrohydrodynamic jet 3D printing of composite scaffold with ordered cell scale fibers for bone tissue engineering. Int J Biol Macromol 2021; 172:124-132. [PMID: 33418047 DOI: 10.1016/j.ijbiomac.2021.01.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/23/2020] [Accepted: 01/03/2021] [Indexed: 10/22/2022]
Abstract
The combination of biomimetic and 3D printing has created novel opportunities for the manufacture of 3D engineered materials. A sub-microscale E-Jet 3D printing method, inspired by the dehydration and protein enrichment process of silkworm, was developed to fabricate composite bone tissue scaffold with the characteristics of controllability, fast and inexpensive. By applying the resultant effects of thermal field and flow field to low viscous composite ink, the concentration gradient biopolymer ink was obtained near the needle tip, mimicking the advanced dehydration of natural spinning apparatus. After electrical shearing force were applied on concentration gradient ink, a stable and fine jet formed. Various printing modes (droplet, continuous fiber) and structure resolutions were achieved by adjusting local solvent evaporation. Thin film, high resolution 2D structures, high aspect ratio well-bonding 3D structures were fabricated. The printed result showed that a 100 μm-sized needle could be employed directly to print patterning down to 800 nm. The printed composite scaffold with controllability of fiber size and space has been proved the feasibility as a medium for bone tissue regeneration. It can be estimated that the novel biomimetic E-Jet 3D printing technique is a new and promising way for bone tissue repairing.
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Affiliation(s)
- Kai Li
- School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China.
| | - Fangyuan Zhang
- School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China
| | - Dazhi Wang
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China
| | - Quanshui Qiu
- Beijing Institute of Space Mechanics & Electricity, Beijing 100190, China
| | - Maiqi Liu
- School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China
| | - Aibing Yu
- School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China
| | - Yuguo Cui
- School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China
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45
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Aarts M, van Vliet S, Bliem R, Alarcon-Llado E. Investigation of copper nanoscale electro-crystallization under directed and non-directed electrodeposition from dilute electrolytes. CrystEngComm 2021. [DOI: 10.1039/d1ce00143d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In situ and ex situ atomic force microscopy was used to investigate crystal growth in copper electro-crystallization localized and directed by a moving nanoelectrode in close proximity to a gold substrate in a highly dilute electrolyte.
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Affiliation(s)
- Mark Aarts
- Center for Nanophotonics
- AMOLF
- Amsterdam
- Netherlands
| | | | - Roland Bliem
- Advanced Center for Nanolithography
- ARCNL
- Amsterdam
- Netherlands
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46
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Su S, Liang J, Wang Z, Xin W, Li X, Wang D. Microtip focused electrohydrodynamic jet printing with nanoscale resolution. NANOSCALE 2020; 12:24450-24462. [PMID: 33300927 DOI: 10.1039/d0nr08236h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Electrohydrodynamic jet (E-Jet) printing is a promising manufacturing technique for micro-/nano-patterned structures with high resolution, high efficiency and high material compatibility. However, further improvement of the necking ratio of the E-Jet is still limited by the focusing principle. Moreover, ink viscosity is limited to values well below 90 mPa s owing to the high probability of nozzle blockage. Here, we propose a microtip focused electrohydrodynamic jet (MFEJ) printing to overcome these limitations. This technique uses a solid microtip with a radius of curvature (ROC) of several micrometers rather than a hollow nozzle, which is very simple and highly efficient to prepare and can effectively avoid nozzle clogging problems even with high-viscosity printing ink. High-resolution patterns in diverse geometries were printed using different inks with a wide range of viscosities (8.4-3500 mPa s). Nanodroplets with an average diameter of 73 nm were achieved. Moreover, nanofibers with a diameter of 30 nm were obtained using a 4 μm ROC microtip and the necking ratio was as high as 266 : 1. To the best of our knowledge, this is the smallest droplet or fiber diameter directly obtained via E-Jet printing to date without further physical or chemical processing. This MFEJ printing technique can improve printing resolution at the nanoscale, significantly enlarge the material applicability and effectively avoid nozzle clogging for the fabrication of nanodevices.
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Affiliation(s)
- Shijie Su
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116023, China.
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47
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Baksi A, Bag S, Kruk R, Nandam SH, Hahn H. Structural insights into metal-metalloid glasses from mass spectrometry. Sci Rep 2020; 10:17467. [PMID: 33060717 PMCID: PMC7567878 DOI: 10.1038/s41598-020-74507-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 10/01/2020] [Indexed: 11/30/2022] Open
Abstract
Despite being studied for nearly 50 years, smallest chemically stable moieties in the metallic glass (MG) could not be found experimentally. Herein, we demonstrate a novel experimental approach based on electrochemical etching of amorphous alloys in inert solvent (acetonitrile) in the presence of a high voltage (1 kV) followed by detection of the ions using electrolytic spray ionization mass spectrometry (ESI MS). The experiment shows stable signals corresponding to Pd, PdSi and PdSi2 ions, which emerges due to the electrochemical etching of the Pd80Si20 metallic glass electrode. These fragments are observed from the controlled dissolution of the Pd80Si20 melt-spun ribbon (MSR) electrode. Annealed electrode releases different fragments in the same experimental condition. These specific species are expected to be the smallest and most stable chemical units from the metallic glass which survived the chemical dissolution and complexation (with acetonitrile) process. Theoretically, these units can be produced from the cluster based models for the MG. Similar treatment on Pd40Ni40P20 MSR resulted several complex peaks consisting of Pd, Ni and P in various combinations suggesting this can be adopted for any metal-metalloid glass.
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Affiliation(s)
- Ananya Baksi
- Institute of Nanotechnology, Karlsruhe Institute of Technology, 76344, Eggenstein-Leopoldshafen, Germany. .,Institute of Physical Chemistry, Karlsruhe Institute of Technology, 76131, Karsruhe, Germany.
| | - Soumabha Bag
- Institute of Nanotechnology, Karlsruhe Institute of Technology, 76344, Eggenstein-Leopoldshafen, Germany.
| | - Robert Kruk
- Institute of Nanotechnology, Karlsruhe Institute of Technology, 76344, Eggenstein-Leopoldshafen, Germany
| | - Sree Harsha Nandam
- Institute of Nanotechnology, Karlsruhe Institute of Technology, 76344, Eggenstein-Leopoldshafen, Germany
| | - Horst Hahn
- Institute of Nanotechnology, Karlsruhe Institute of Technology, 76344, Eggenstein-Leopoldshafen, Germany. .,Herbert Gleiter Institute of Nanoscience, Nanjing University of Science and Technology, Nanjing, 210094, People's Republic of China.
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48
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Rohner P, Reiser A, Rabouw FT, Sologubenko AS, Norris DJ, Spolenak R, Poulikakos D. 3D electrohydrodynamic printing and characterisation of highly conductive gold nanowalls. NANOSCALE 2020; 12:20158-20164. [PMID: 32776025 DOI: 10.1039/d0nr04593d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
3D printing research targets the creation of nanostructures beyond the limits of traditional micromachining. A proper characterisation of their functionalities is necessary to facilitate future implementation into applications. We fabricate, in an open atmosphere, high-aspect-ratio gold nanowalls by electrohydrodynamic rapid nanodripping, and comprehensively analyse their electronic performance by four-point probe measurements. We reveal the large-grained nanowall morphology by transmission electron microscopy and explain the measured low resistivities approaching those of bulk gold. This work is a significant advancement in contactless bottom-up 3D nanofabrication and characterisation and could also serve as a platform for fundamental studies of additively manufactured high-aspect-ratio out-of-plane metallic nanostructures.
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Affiliation(s)
- Patrik Rohner
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland.
| | - Alain Reiser
- Laboratory for Nanometallurgy, Department of Materials, ETH Zurich, 8093 Zurich, Switzerland
| | - Freddy T Rabouw
- Optical Materials Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland and Debye Institute for Nanomaterials Science, Utrecht University, Princetonplein 1, 3584 CC Utrecht, the Netherlands
| | - Alla S Sologubenko
- Laboratory for Nanometallurgy, Department of Materials, ETH Zurich, 8093 Zurich, Switzerland
| | - David J Norris
- Optical Materials Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland
| | - Ralph Spolenak
- Laboratory for Nanometallurgy, Department of Materials, ETH Zurich, 8093 Zurich, Switzerland
| | - Dimos Poulikakos
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland.
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Qi C, Li Y, Liu Z, Kong T. Electrohydrodynamics of droplets and jets in multiphase microsystems. SOFT MATTER 2020; 16:8526-8546. [PMID: 32945331 DOI: 10.1039/d0sm01357a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Electrohydrodynamics is among the most promising techniques for manipulating liquids in microsystems. The electric stress actuates, generates, and coalesces droplets of small sizes; it also accelerates, focuses, and controls the motion of fine jets. In this review, the current understanding of dynamic regimes of electrically driven drops and jets in multiphase microsystems is summarized. The experimental description and underlying mechanism of force interplay and instabilities are discussed. Conditions for controlled transitions among different regimes are also provided. Emerging new phenomena either due to special interfacial properties or geometric confinement are emphasized, and simple scaling arguments proposed in the literature are introduced. The review provides useful perspectives for investigations involving electrically driven droplets and jets.
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Affiliation(s)
- Cheng Qi
- College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518000, Guangdong, China
| | - Yao Li
- College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518000, Guangdong, China
| | - Zhou Liu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518000, Guangdong, China.
| | - Tiantian Kong
- Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen 518000, Guangdong, China.
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Abstract
Hydrodynamic collapse of a central air-cavity during the recoil phase of droplet impact on a superhydrophobic sieve leads to satellite-free generation of a single droplet through the sieve. Two modes of cavity formation and droplet ejection have been observed and explained. The volume of the generated droplet scales with the pore size. Based on this phenomenon, we propose a drop-on-demand printing technique. Despite significant advancements in inkjet technology, enhancement in mass-loading and particle-size have been limited due to clogging of the printhead nozzle. By replacing the nozzle with a sieve, we demonstrate printing of nanoparticle suspension with 71% mass-loading. Comparatively large particles of 20 μm diameter are dispensed in droplets of ~80 μm diameter. Printing is performed for surface tension as low as 32 mNm-1 and viscosity as high as 33 mPa∙s. In comparison to existing techniques, this way of printing is widely accessible as it is significantly simple and economical.
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Affiliation(s)
- Chandantaru Dey Modak
- Centre for Nano Science and Engineering, Indian Institute of Science, Bangalore, Karnataka, 560012, India
| | - Arvind Kumar
- Centre for Nano Science and Engineering, Indian Institute of Science, Bangalore, Karnataka, 560012, India
- Australian Institute of Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Abinash Tripathy
- Centre for Nano Science and Engineering, Indian Institute of Science, Bangalore, Karnataka, 560012, India
- Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092, Zurich, Switzerland
| | - Prosenjit Sen
- Centre for Nano Science and Engineering, Indian Institute of Science, Bangalore, Karnataka, 560012, India.
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