Single atom catalysts (SACs) have received enormous attention in the field of catalysis in the last decade due to their maximum atom utilization as well as unique physical and chemical properties. For the semiconductor-based electrical gas sensor, the core is the catalysis process of target gas molecules on the sensitive materials. In this scenario, the SACs would be used for highly sensitive and selective gas sensing, however, only some of bubbles come to the surface. To realize its practical applications, the preparation strategies for SACs are reviewed systematically. The aggregation and low loading of SACs are still the main challenges. Following, the interaction between the SACs and the target gas molecules and its supports is unrevealed to explain the improvement of sensing performances. Furthermore, the typical applications of SACs in the different gases sensing are highlighted, revealing its superiority of high sensitivity and selectivity. Finally, the challenges and future perspectives on the SACs based gas sensing are presented.
{"title":"Preparation of Single Atom Catalysts for High Sensitive Gas Sensing","authors":"Xinxin He, Ping Guo, Xunyang An, Yuyang Li, Jiatai Chen, Xinyu Zhang, Lifeng Wang, Mingjin Dai, Chaoliang Tan, Jia Zhang","doi":"10.1088/2631-7990/ad3316","DOIUrl":"https://doi.org/10.1088/2631-7990/ad3316","url":null,"abstract":"\u0000 Single atom catalysts (SACs) have received enormous attention in the field of catalysis in the last decade due to their maximum atom utilization as well as unique physical and chemical properties. For the semiconductor-based electrical gas sensor, the core is the catalysis process of target gas molecules on the sensitive materials. In this scenario, the SACs would be used for highly sensitive and selective gas sensing, however, only some of bubbles come to the surface. To realize its practical applications, the preparation strategies for SACs are reviewed systematically. The aggregation and low loading of SACs are still the main challenges. Following, the interaction between the SACs and the target gas molecules and its supports is unrevealed to explain the improvement of sensing performances. Furthermore, the typical applications of SACs in the different gases sensing are highlighted, revealing its superiority of high sensitivity and selectivity. Finally, the challenges and future perspectives on the SACs based gas sensing are presented.","PeriodicalId":52353,"journal":{"name":"International Journal of Extreme Manufacturing","volume":null,"pages":null},"PeriodicalIF":14.7,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140249241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-03-05DOI: 10.1088/2631-7990/ad304f
Jin Xu, Lingfeng Wang, Peilin Yang, Haoqing Jiang, Huai Zheng, Li-cong An, Xingtao Liu, G. Cheng
The remarkable capabilities of 2D plasmonic surfaces in controlling optical waves have garnered significant attention. However, the challenge of large-scale manufacturing of uniform, well-aligned, and tunable plasmonic surfaces has hindered their industrialization. To address this, we present a groundbreaking tunable plasmonic platform design achieved through magnetic field (MF) assisted ultrafast laser direct deposition (MAPLD) in air. Through precise control of metal nanoparticles (NPs), with Cobalt (Co) serving as the model material, employing a magnetic field (MF), and fine-tuning ultrafast laser parameters, we have effectively converted coarse and non-uniform NPs into densely packed, uniform, and ultrafine NPs(~3nm). This revolutionary advancement results in the creation of customizable plasmonic 'hot spots,' which play a pivotal role in Surface-enhanced Raman spectroscopy (SERS) sensors. The profound impact of this designable plasmonic platform lies in its close association with plasmonic resonance and energy enhancement. When the plasmonic nanostructures resonate with incident light, they generate intense local electromagnetic fields, thus vastly increasing the Raman scattering signal. This enhancement leads to an outstanding 2 to 18-fold boost in SERS performance and unparalleled sensing sensitivity down to 10-10 M. Notably, the plasmonic platform also demonstrates robustness, retaining its sensing capability even after undergoing 50 cycles of rinsing and re-loading of chemicals. Moreover, this work adheres to green manufacturing standards, making it an efficient and environmentally friendly method for customizing plasmonic 'hot spots' in SERS devices. Our study not only achieves the formation of high-density, uniform, and ultrafine nanoparticle arrays on a tunable plasmonic platform but also showcases the profound relation between plasmonic resonance and energy enhancement. The outstanding results observed in SERS sensors further emphasize the immense potential of this technology for energy-related applications, including photocatalysis, photovoltaics, and clean water, propelling us closer to a sustainable and cleaner future.
{"title":"Revolutionlizing Plasmonic Platform via Magnetic Field-Assisted Confined Ultrafast Laser Deposition of High-Density, Uniform, and Ultrafine Nanoparticle Arrays","authors":"Jin Xu, Lingfeng Wang, Peilin Yang, Haoqing Jiang, Huai Zheng, Li-cong An, Xingtao Liu, G. Cheng","doi":"10.1088/2631-7990/ad304f","DOIUrl":"https://doi.org/10.1088/2631-7990/ad304f","url":null,"abstract":"\u0000 The remarkable capabilities of 2D plasmonic surfaces in controlling optical waves have garnered significant attention. However, the challenge of large-scale manufacturing of uniform, well-aligned, and tunable plasmonic surfaces has hindered their industrialization. To address this, we present a groundbreaking tunable plasmonic platform design achieved through magnetic field (MF) assisted ultrafast laser direct deposition (MAPLD) in air. Through precise control of metal nanoparticles (NPs), with Cobalt (Co) serving as the model material, employing a magnetic field (MF), and fine-tuning ultrafast laser parameters, we have effectively converted coarse and non-uniform NPs into densely packed, uniform, and ultrafine NPs(~3nm). This revolutionary advancement results in the creation of customizable plasmonic 'hot spots,' which play a pivotal role in Surface-enhanced Raman spectroscopy (SERS) sensors. The profound impact of this designable plasmonic platform lies in its close association with plasmonic resonance and energy enhancement. When the plasmonic nanostructures resonate with incident light, they generate intense local electromagnetic fields, thus vastly increasing the Raman scattering signal. This enhancement leads to an outstanding 2 to 18-fold boost in SERS performance and unparalleled sensing sensitivity down to 10-10 M. Notably, the plasmonic platform also demonstrates robustness, retaining its sensing capability even after undergoing 50 cycles of rinsing and re-loading of chemicals. Moreover, this work adheres to green manufacturing standards, making it an efficient and environmentally friendly method for customizing plasmonic 'hot spots' in SERS devices. Our study not only achieves the formation of high-density, uniform, and ultrafine nanoparticle arrays on a tunable plasmonic platform but also showcases the profound relation between plasmonic resonance and energy enhancement. The outstanding results observed in SERS sensors further emphasize the immense potential of this technology for energy-related applications, including photocatalysis, photovoltaics, and clean water, propelling us closer to a sustainable and cleaner future.","PeriodicalId":52353,"journal":{"name":"International Journal of Extreme Manufacturing","volume":null,"pages":null},"PeriodicalIF":14.7,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140264265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Synthetic vascular grafts suitable for small-diameter arteries (< 6 mm) are in great need. However, there are still no commercially available small-diameter vascular grafts (SDVGs) in clinical practice due to thrombosis and stenosis after in vivo implantation. When designing SDVGs, many studies emphasized reendothelization but ignored the importance of reconstruction of the smooth muscle layer (SML). To facilitate rapid SML regeneration, a high-resolution 3D printing method was used to create a novel bilayer SDVG with structures and mechanical properties mimicking natural arteries. Bioinspired by the collagen alignment of SML, the inner layer of the grafts had larger pore sizes and high porosity to accelerate the infiltration of cells and their circumferential alignment, which could facilitate SML reconstruction for compliance restoration and spontaneous endothelialization. The outer layer was designed to induce fibroblast recruitment by low porosity and minor pore size and provide SDVG with sufficient mechanical strength. One month after implantation, the arteries regenerated by 3D-printed grafts exhibited better pulsatility than electrospun grafts, with a compliance (8.9%) approaching that of natural arteries (11.36%) and significantly higher than that of electrospun ones (1.9%). The 3D-printed vascular demonstrated a three-layer structure more closely resembling natural arteries while electrospun grafts showed incomplete endothelium and immature SML. Our study shows the importance of SML reconstruction during vascular graft regeneration and provides an effective strategy to reconstruct blood vessels through 3D-printed structures rapidly.
{"title":"3D printed grafts with gradient structures for organized vascular regeneration","authors":"Yuewei Chen, Zhongfei Zou, Fu Tao, Zhuang Li, Zhaojie Zhang, Meng Zhu, Qing Gao, Shaofei Wu, Guosheng Fu, Yong He, Jiayin Fu","doi":"10.1088/2631-7990/ad2f50","DOIUrl":"https://doi.org/10.1088/2631-7990/ad2f50","url":null,"abstract":"\u0000 Synthetic vascular grafts suitable for small-diameter arteries (< 6 mm) are in great need. However, there are still no commercially available small-diameter vascular grafts (SDVGs) in clinical practice due to thrombosis and stenosis after in vivo implantation. When designing SDVGs, many studies emphasized reendothelization but ignored the importance of reconstruction of the smooth muscle layer (SML). To facilitate rapid SML regeneration, a high-resolution 3D printing method was used to create a novel bilayer SDVG with structures and mechanical properties mimicking natural arteries. Bioinspired by the collagen alignment of SML, the inner layer of the grafts had larger pore sizes and high porosity to accelerate the infiltration of cells and their circumferential alignment, which could facilitate SML reconstruction for compliance restoration and spontaneous endothelialization. The outer layer was designed to induce fibroblast recruitment by low porosity and minor pore size and provide SDVG with sufficient mechanical strength. One month after implantation, the arteries regenerated by 3D-printed grafts exhibited better pulsatility than electrospun grafts, with a compliance (8.9%) approaching that of natural arteries (11.36%) and significantly higher than that of electrospun ones (1.9%). The 3D-printed vascular demonstrated a three-layer structure more closely resembling natural arteries while electrospun grafts showed incomplete endothelium and immature SML. Our study shows the importance of SML reconstruction during vascular graft regeneration and provides an effective strategy to reconstruct blood vessels through 3D-printed structures rapidly.","PeriodicalId":52353,"journal":{"name":"International Journal of Extreme Manufacturing","volume":null,"pages":null},"PeriodicalIF":14.7,"publicationDate":"2024-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140082084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-28DOI: 10.1088/2631-7990/ad2e14
Han Xu, Renzhi Hu, Shuai Chen, Junhong Zhu, Chi Zhou, Yong Chen
Mask image projection-based vat photopolymerization (MIP-VPP) offers advantages like low cost, high resolution, and a wide material range, making it popular in industry and education. Recently, MIP-VPP employing liquid crystal displays (LCDs) has gained traction, increasingly replacing digital micromirror devices (DMDs), particularly among hobbyists and in educational settings, and is now beginning to be used in industrial environments. However, LCD-based MIP-VPP suffers from pronounced pixelated aliasing arising from LCD's discrete image pixels and its direct-contact configuration in MIP-VPP machines, leading to rough surfaces on the 3D-printed parts. Here, we propose a vibration-assisted MIP-VPP method that utilizes a microscale vibration to uniformize the light intensity distribution of the LCD-based mask image on VPP’s building platform. By maintaining the same fabrication speed, our technique generates a smoother, non-pixelated mask image, reducing the roughness on flat surfaces and boundary segments of 3D-printed parts. Through light intensity modeling and simulation, we derived an optimal vibration pattern for LCD mask images, subsequently validated by experiments. We assessed the surface texture, boundary integrity, and dimensional accuracy of components produced using the vibration-assisted approach. The notably smoother surfaces and improved boundary roughness enhance the printing quality of MIP-VPP, enabling its promising applications in sectors like the production of 3D-printed optical devices and others.
{"title":"Vibration-assisted Vat Photopolymerization for Pixelated-aliasing-free Surface Fabrication","authors":"Han Xu, Renzhi Hu, Shuai Chen, Junhong Zhu, Chi Zhou, Yong Chen","doi":"10.1088/2631-7990/ad2e14","DOIUrl":"https://doi.org/10.1088/2631-7990/ad2e14","url":null,"abstract":"\u0000 Mask image projection-based vat photopolymerization (MIP-VPP) offers advantages like low cost, high resolution, and a wide material range, making it popular in industry and education. Recently, MIP-VPP employing liquid crystal displays (LCDs) has gained traction, increasingly replacing digital micromirror devices (DMDs), particularly among hobbyists and in educational settings, and is now beginning to be used in industrial environments. However, LCD-based MIP-VPP suffers from pronounced pixelated aliasing arising from LCD's discrete image pixels and its direct-contact configuration in MIP-VPP machines, leading to rough surfaces on the 3D-printed parts. Here, we propose a vibration-assisted MIP-VPP method that utilizes a microscale vibration to uniformize the light intensity distribution of the LCD-based mask image on VPP’s building platform. By maintaining the same fabrication speed, our technique generates a smoother, non-pixelated mask image, reducing the roughness on flat surfaces and boundary segments of 3D-printed parts. Through light intensity modeling and simulation, we derived an optimal vibration pattern for LCD mask images, subsequently validated by experiments. We assessed the surface texture, boundary integrity, and dimensional accuracy of components produced using the vibration-assisted approach. The notably smoother surfaces and improved boundary roughness enhance the printing quality of MIP-VPP, enabling its promising applications in sectors like the production of 3D-printed optical devices and others.","PeriodicalId":52353,"journal":{"name":"International Journal of Extreme Manufacturing","volume":null,"pages":null},"PeriodicalIF":14.7,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140422229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-28DOI: 10.1088/2631-7990/ad2e12
Jianlei Cui, Fengqi Wei, Xuesong Mei
As the manufacturing process of silicon-based integrated circuits (ICs) approaches its physical limit, the quantum effect of silicon-based field-effect transistors (FETs) has become increasingly evident. And the burgeoning carbon-based semiconductor technology has become one of the most disruptive technologies in the post-Moore era. As one-dimensional nanomaterials, carbon nanotubes (CNTs) are far superior to silicon at the same technology nodes of FETs because of their excellent electrical transport and scaling properties, rendering them the most competitive material in the next-generation ICs technology. However, certain challenges impede the industrialization of CNTs, particularly in terms of material preparation, which significantly hinders the development of CNT-based ICs. Focusing on CNT-based ICs technology, this review summarizes its main technical status, development trends, existing challenges, and future development directions.
{"title":"Carbon Nanotube Integrated Circuit Technology: Purification, Assembly and Integration","authors":"Jianlei Cui, Fengqi Wei, Xuesong Mei","doi":"10.1088/2631-7990/ad2e12","DOIUrl":"https://doi.org/10.1088/2631-7990/ad2e12","url":null,"abstract":"\u0000 As the manufacturing process of silicon-based integrated circuits (ICs) approaches its physical limit, the quantum effect of silicon-based field-effect transistors (FETs) has become increasingly evident. And the burgeoning carbon-based semiconductor technology has become one of the most disruptive technologies in the post-Moore era. As one-dimensional nanomaterials, carbon nanotubes (CNTs) are far superior to silicon at the same technology nodes of FETs because of their excellent electrical transport and scaling properties, rendering them the most competitive material in the next-generation ICs technology. However, certain challenges impede the industrialization of CNTs, particularly in terms of material preparation, which significantly hinders the development of CNT-based ICs. Focusing on CNT-based ICs technology, this review summarizes its main technical status, development trends, existing challenges, and future development directions.","PeriodicalId":52353,"journal":{"name":"International Journal of Extreme Manufacturing","volume":null,"pages":null},"PeriodicalIF":14.7,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140423070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-28DOI: 10.1088/2631-7990/ad2e13
Zhuohui Huang, Yanran Li, Yi Zhang, Jiewei Chen, Jun He, Jie Jiang
Neuromorphic computing systems, which mimic the operation of neurons and synapses in the human brain, are seen as an appealing next-generation computing method due to their strong and efficient computing abilities. Two-dimensional (2D) materials with dangling bond-free surfaces and atomic-level thicknesses have emerged as promising candidates for neuromorphic computing hardware. As a result, 2D neuromorphic devices may provide an ideal platform for developing multifunctional neuromorphic applications. Here, we review the recent neuromorphic devices based on 2D material and their multifunctional applications. The synthesis and next micro-nano fabrication methods of 2D materials and their heterostructures are first introduced. The recent advances of neuromorphic 2D devices are discussed in details using different operating principles. More importantly, we present a review of emerging multifunctional neuromorphic applications, including neuromorphic visual, auditory, tactile, and nociceptive systems based on 2D devices. In the end, we discuss the problems and methods for 2D neuromorphic device developments in the future. This paper will give insights into designing 2D neuromorphic devices and applying them to the future neuromorphic systems.
{"title":"2D Multifunctional Devices: from Material Preparation to Device Fabrication and Neuromorphic Applications","authors":"Zhuohui Huang, Yanran Li, Yi Zhang, Jiewei Chen, Jun He, Jie Jiang","doi":"10.1088/2631-7990/ad2e13","DOIUrl":"https://doi.org/10.1088/2631-7990/ad2e13","url":null,"abstract":"\u0000 Neuromorphic computing systems, which mimic the operation of neurons and synapses in the human brain, are seen as an appealing next-generation computing method due to their strong and efficient computing abilities. Two-dimensional (2D) materials with dangling bond-free surfaces and atomic-level thicknesses have emerged as promising candidates for neuromorphic computing hardware. As a result, 2D neuromorphic devices may provide an ideal platform for developing multifunctional neuromorphic applications. Here, we review the recent neuromorphic devices based on 2D material and their multifunctional applications. The synthesis and next micro-nano fabrication methods of 2D materials and their heterostructures are first introduced. The recent advances of neuromorphic 2D devices are discussed in details using different operating principles. More importantly, we present a review of emerging multifunctional neuromorphic applications, including neuromorphic visual, auditory, tactile, and nociceptive systems based on 2D devices. In the end, we discuss the problems and methods for 2D neuromorphic device developments in the future. This paper will give insights into designing 2D neuromorphic devices and applying them to the future neuromorphic systems.","PeriodicalId":52353,"journal":{"name":"International Journal of Extreme Manufacturing","volume":null,"pages":null},"PeriodicalIF":14.7,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140422350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-23DOI: 10.1088/2631-7990/ad2cde
Zhichao Dong, Tao Shen, Shijie Liu, Cunlong Yu, Chengqi Zhang, Ning Li, Ruochen Fang, Lei Jiang, Xingfei Li, Kang Yang
Biomimetic materials that use natural wisdom to solve practical problems are developing rapidly. In-situ characterization of natural creatures with high spatial resolutions and rapid reconstruction of their digital twin model with the same sophisticated features as prototypes are the trend for systematic biomimicry. However, it faces bottlenecks and limits in fast characterization and fabrication, precise parameter optimization, geometric deviations control, and quality prediction. To solve these challenges, here, we demonstrate a state-of-the-art method taking advantage of Micro-CT and 3D printing for the fast characterization of the pitcher plant Nepenthes x ventrata and fabrication of its biomimetic model to obtain a superior drainage controller with multiscale structures with precise surface morphology optimization and geometric deviation control. The film-rupture-based drainage dynamic and mechanisms are characterized by X-ray and high-speed videography, which determines the crucial structures for unique directional drainage. Then the optimized artificial pitchers are further developed into sustained drainage devices with novel applications, such as detection, reaction, and smoke control.
利用自然智慧解决实际问题的仿生材料正在迅速发展。对自然生物进行高空间分辨率的原位表征，并快速重建与原型具有相同复杂特征的数字孪生模型，是系统生物仿生的发展趋势。然而，它在快速特征描述和制造、精确参数优化、几何偏差控制和质量预测方面面临瓶颈和限制。为了解决这些难题，我们在这里展示了一种最先进的方法，该方法利用微计算机断层扫描（Micro-CT）和三维打印技术快速表征投手植物 Nepenthes x ventrata，并制作其生物仿生模型，从而获得具有多尺度结构、精确表面形态优化和几何偏差控制的卓越排水控制器。通过 X 射线和高速摄像对基于薄膜破裂的排水动态和机制进行表征，从而确定独特定向排水的关键结构。然后，将优化的人工投球器进一步开发成具有新颖应用的持续排水装置，如检测、反应和烟雾控制。
{"title":"Fast prototype and rapid construction of three-dimensional and multi-scaled pitcher for controlled drainage by systematic biomimicry","authors":"Zhichao Dong, Tao Shen, Shijie Liu, Cunlong Yu, Chengqi Zhang, Ning Li, Ruochen Fang, Lei Jiang, Xingfei Li, Kang Yang","doi":"10.1088/2631-7990/ad2cde","DOIUrl":"https://doi.org/10.1088/2631-7990/ad2cde","url":null,"abstract":"\u0000 Biomimetic materials that use natural wisdom to solve practical problems are developing rapidly. In-situ characterization of natural creatures with high spatial resolutions and rapid reconstruction of their digital twin model with the same sophisticated features as prototypes are the trend for systematic biomimicry. However, it faces bottlenecks and limits in fast characterization and fabrication, precise parameter optimization, geometric deviations control, and quality prediction. To solve these challenges, here, we demonstrate a state-of-the-art method taking advantage of Micro-CT and 3D printing for the fast characterization of the pitcher plant Nepenthes x ventrata and fabrication of its biomimetic model to obtain a superior drainage controller with multiscale structures with precise surface morphology optimization and geometric deviation control. The film-rupture-based drainage dynamic and mechanisms are characterized by X-ray and high-speed videography, which determines the crucial structures for unique directional drainage. Then the optimized artificial pitchers are further developed into sustained drainage devices with novel applications, such as detection, reaction, and smoke control.","PeriodicalId":52353,"journal":{"name":"International Journal of Extreme Manufacturing","volume":null,"pages":null},"PeriodicalIF":14.7,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140435644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
“Electrostatic tweezer” is a promising tool for droplet manipulation, but it faces many limitations in manipulating droplet on superhydrophobic surfaces. Here, we achieve noncontact and multifunctional droplet manipulation on Nepenthes-inspired lubricated slippery surfaces based on triboelectric electrostatic tweezers (TETs). The TET manipulation of droplets on a slippery surface shows many advantages over the electrostatic droplet manipulation on a superhydrophobic surface. The electrostatic field induces the redistribution of the charges inside the neutral droplet, which makes the triboelectric charged rod drive the droplet to move forward under the electrostatic force. Positively or negatively charged droplets can also be moved by TET based on electrostatic attraction and repulsion. TET enables manipulate droplets under diverse conditions, such as anti-gravity climb, the motion of suspended droplets, corrosive liquids, low-surface-tension liquids (e.g., ethanol with a surface tension of 22.3 mN/m), different droplet volumes (from 100 nL to 0.5 mL), passing through narrow slits, sliding over damaged areas, on various solid substrates, and even droplets in an enclosed system. Various droplet-related applications, such as motion guidance, motion switching, droplet-based microreactions, surface cleaning, surface defogging, liquid sorting, and cell labeling can be easily achieved with TET.
{"title":"Triboelectric “Electrostatic Tweezers” for Manipulating Droplets on Lubricated Slippery Surfaces Prepared by Femtosecond Laser Processing","authors":"Jiale Yong, Xinlei Li, Youdi Hu, Yubin Peng, Zilong Cheng, Tianyu Xu, Chaowei Wang, Dong Wu","doi":"10.1088/2631-7990/ad2cdf","DOIUrl":"https://doi.org/10.1088/2631-7990/ad2cdf","url":null,"abstract":"\u0000 “Electrostatic tweezer” is a promising tool for droplet manipulation, but it faces many limitations in manipulating droplet on superhydrophobic surfaces. Here, we achieve noncontact and multifunctional droplet manipulation on Nepenthes-inspired lubricated slippery surfaces based on triboelectric electrostatic tweezers (TETs). The TET manipulation of droplets on a slippery surface shows many advantages over the electrostatic droplet manipulation on a superhydrophobic surface. The electrostatic field induces the redistribution of the charges inside the neutral droplet, which makes the triboelectric charged rod drive the droplet to move forward under the electrostatic force. Positively or negatively charged droplets can also be moved by TET based on electrostatic attraction and repulsion. TET enables manipulate droplets under diverse conditions, such as anti-gravity climb, the motion of suspended droplets, corrosive liquids, low-surface-tension liquids (e.g., ethanol with a surface tension of 22.3 mN/m), different droplet volumes (from 100 nL to 0.5 mL), passing through narrow slits, sliding over damaged areas, on various solid substrates, and even droplets in an enclosed system. Various droplet-related applications, such as motion guidance, motion switching, droplet-based microreactions, surface cleaning, surface defogging, liquid sorting, and cell labeling can be easily achieved with TET.","PeriodicalId":52353,"journal":{"name":"International Journal of Extreme Manufacturing","volume":null,"pages":null},"PeriodicalIF":14.7,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140435712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-22DOI: 10.1088/2631-7990/ad2c61
Shuai-Bin Hua, Tian Jin, Xin Guo
Owing to the advantages of simple structure, low power consumption and high-density integration, memristors or memristive devices are attracting increasing attention in the fields of next generation nonvolatile memories, neuromorphic computation and data encryption, etc. However, the deposition of memristive films often requires expensive equipment and strict vacuum conditions, the process consumes high energy, and it is also very time–consuming. In contrast, electrochemical anodizing can produce metal oxide films quickly (e.g. in 10 s) under ambient conditions. By means of the anodizing technique, oxide films, oxide nanotubes, nanowires and nanodots can be fabricated to prepare memristors. Through adjusting oxidation parameters such as voltage, current and time, oxide film thickness, nanostructures, defect concentrations, etc., can be varied to regulate device performances. Thus memristors fabricated by the anodic oxidation technique can achieve high device consistency, low variation, and ultra–high yield rate. This article provides a comprehensive review of the research progress in the field of anodic oxidation assisted fabrication of memristors. Firstly, the principle of anodic oxidation is introduced; then different types of memristors produced by the anodic oxidation are presented; finally, features and challenges of the anodic oxidation for memristor production are elaborated.
{"title":"Electrochemical anodic oxidation assisted fabrication of memristors","authors":"Shuai-Bin Hua, Tian Jin, Xin Guo","doi":"10.1088/2631-7990/ad2c61","DOIUrl":"https://doi.org/10.1088/2631-7990/ad2c61","url":null,"abstract":"\u0000 Owing to the advantages of simple structure, low power consumption and high-density integration, memristors or memristive devices are attracting increasing attention in the fields of next generation nonvolatile memories, neuromorphic computation and data encryption, etc. However, the deposition of memristive films often requires expensive equipment and strict vacuum conditions, the process consumes high energy, and it is also very time–consuming. In contrast, electrochemical anodizing can produce metal oxide films quickly (e.g. in 10 s) under ambient conditions. By means of the anodizing technique, oxide films, oxide nanotubes, nanowires and nanodots can be fabricated to prepare memristors. Through adjusting oxidation parameters such as voltage, current and time, oxide film thickness, nanostructures, defect concentrations, etc., can be varied to regulate device performances. Thus memristors fabricated by the anodic oxidation technique can achieve high device consistency, low variation, and ultra–high yield rate. This article provides a comprehensive review of the research progress in the field of anodic oxidation assisted fabrication of memristors. Firstly, the principle of anodic oxidation is introduced; then different types of memristors produced by the anodic oxidation are presented; finally, features and challenges of the anodic oxidation for memristor production are elaborated.","PeriodicalId":52353,"journal":{"name":"International Journal of Extreme Manufacturing","volume":null,"pages":null},"PeriodicalIF":14.7,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140440247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-22DOI: 10.1088/2631-7990/ad2c60
Wenyu Chen, Shiyuan Liu, Jinlong Zhu
Multi-level programmable photonic integrated circuits and optical metasurfaces have gained widespread attention in many fields, such as neuromorphic photonics, optical communications, and quantum information. In this paper, we propose pixelated programmable Si3N4 photonic integrated circuits with record-high 20-level intermediate states at 785 nm wavelength. Such flexibility in phase or amplitude modulation is achieved by a programmable Sb2S3 matrix, the footprint of whose elements can be as small as 1.2 μm, limited only by the optical diffraction limit of an in-house developed pulsed laser writing system. We believe, our work lays the foundation for laser-writing ultra-high-level (20 levels and even more) programmable photonic systems and metasurfaces based on phase change materials, which could catalyze diverse applications such as programmable neuromorphic photonics, biosensing, optical computing, photonic quantum computing, and reconfigurable metasurfaces.
{"title":"Pixelated non-volatile programmable photonic integrated circuits with 20-level intermediate states","authors":"Wenyu Chen, Shiyuan Liu, Jinlong Zhu","doi":"10.1088/2631-7990/ad2c60","DOIUrl":"https://doi.org/10.1088/2631-7990/ad2c60","url":null,"abstract":"\u0000 Multi-level programmable photonic integrated circuits and optical metasurfaces have gained widespread attention in many fields, such as neuromorphic photonics, optical communications, and quantum information. In this paper, we propose pixelated programmable Si3N4 photonic integrated circuits with record-high 20-level intermediate states at 785 nm wavelength. Such flexibility in phase or amplitude modulation is achieved by a programmable Sb2S3 matrix, the footprint of whose elements can be as small as 1.2 μm, limited only by the optical diffraction limit of an in-house developed pulsed laser writing system. We believe, our work lays the foundation for laser-writing ultra-high-level (20 levels and even more) programmable photonic systems and metasurfaces based on phase change materials, which could catalyze diverse applications such as programmable neuromorphic photonics, biosensing, optical computing, photonic quantum computing, and reconfigurable metasurfaces.","PeriodicalId":52353,"journal":{"name":"International Journal of Extreme Manufacturing","volume":null,"pages":null},"PeriodicalIF":14.7,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140438559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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