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Characterization of MXene-Based Materials by X-Ray Computed Tomography. x射线计算机断层扫描表征mxene基材料。
IF 10.7 2区 材料科学
Small Methods Pub Date : 2025-05-02 DOI: 10.1002/smtd.202500262
Bita Soltan Mohammadlou, Stefano Ippolito, James FitzPatrick, Prastuti Upadhyay, Tim L Burnett, Yury Gogotsi
{"title":"Characterization of MXene-Based Materials by X-Ray Computed Tomography.","authors":"Bita Soltan Mohammadlou, Stefano Ippolito, James FitzPatrick, Prastuti Upadhyay, Tim L Burnett, Yury Gogotsi","doi":"10.1002/smtd.202500262","DOIUrl":"https://doi.org/10.1002/smtd.202500262","url":null,"abstract":"<p><p>MXenes are a class of 2D materials that have gained significant attention for their potential applications in energy storage, electromagnetic interference shielding, biomedicine, and (opto)electronics. Despite their broad range of applications, a detailed understanding of the internal architecture of MXene-based materials remains limited due to the lack of effective 3D imaging techniques. This work demonstrates the application of X-ray micro-computed tomography (micro-CT) to investigate various MXene systems, including nanocomposites, coated textiles, and aerogels. Micro-CT enables high-resolution, 3D visualization of the internal microstructure, MXene distribution, infiltration patterns, and defect formations, which significantly influence the material's performance. Moreover, the typical technical challenges and limitations encountered during sample preparation, scanning, and post-processing of micro-CT data are discussed. The information obtained from optical and electron microscopy is also compared with micro-CT, highlighting the unique advantages of micro-CT in providing comprehensive 3D imaging and quantitative data. This study highlights micro-CT as a powerful and nondestructive imaging tool for characterizing MXene-based materials, providing insights into material optimization and guidelines for developing future advanced applications.</p>","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2500262"},"PeriodicalIF":10.7,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143955296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tailoring Colour Centres of Host-Dopant Light Emitters by X-Ray Radiations. 用x射线辐射裁剪主掺杂光源的色心。
IF 10.7 2区 材料科学
Small Methods Pub Date : 2025-05-02 DOI: 10.1002/smtd.202402180
Weidian Li, Siyuan He, Wenfa Chen, Pin Lyu, Ying Liu, Jincheng Bao, Caixia Kan, Mingming Jiang, Shuiyan Cao, Yanpeng Liu
{"title":"Tailoring Colour Centres of Host-Dopant Light Emitters by X-Ray Radiations.","authors":"Weidian Li, Siyuan He, Wenfa Chen, Pin Lyu, Ying Liu, Jincheng Bao, Caixia Kan, Mingming Jiang, Shuiyan Cao, Yanpeng Liu","doi":"10.1002/smtd.202402180","DOIUrl":"https://doi.org/10.1002/smtd.202402180","url":null,"abstract":"<p><p>Electrically driven host-dopant structure, such as single Ga-doped ZnO microwire, is promising for miniaturized light sources. However, the electroluminescence (EL) for a fixed concentration of Ga dopant barely vary for a single ZnO micro/nanostructure, limiting their applications in integrated optoelectronics. Here X-ray irradiation is reported as a simple and effective post-treatment to tailor the EL intensity and color coordinate of Ga-doped ZnO microwires. After irradiating the microwires under an X-ray dose of 180 Gy, the intensity of green EL light increases by ≈12 times, accompanied by a narrowed spectrum linewidth. Meanwhile, the EL color coordinate shifts from (0.309, 0.416) for pristine microwires to (0.319, 0.503) for X-ray irradiated ones, corresponding to more purified green emission. The EL intensity monotonically increases (>20 times) with further increments of irradiation doses, and intense X-ray irradiations shift the EL color center toward the green-yellow spectral region and a total average redshift of ≈30±6 nm is achieved. The density functional theory (DFT) simulations suggest that the EL variation may stem from the substitution of host Zn atoms by interstitial Ga dopant stimulated by high-energy X-ray. These presented results indicate X-ray irradiation is a potential post-treatment strategy for host-dopant light emitters toward practical applications.</p>","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2402180"},"PeriodicalIF":10.7,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143956896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fabrication of a Mechanically Robust Solid-Electrolyte Interphase on Sodium-Metal Anodes by Anion Modulation for Ambient Sodium-Air Batteries. 环境钠-空气电池用阴离子调制制备机械坚固的钠-金属阳极固-电解质界面。
IF 10.7 2区 材料科学
Small Methods Pub Date : 2025-04-30 DOI: 10.1002/smtd.202401930
Xiaofeng Lei, Menglin He, Pingli Wu, Chao Ma, Xu Liu, Chongyan Yao, Wenfeng Cui, Qingxu Zhang, Caicai Li, Huiqiao Li, Xizheng Liu
{"title":"Fabrication of a Mechanically Robust Solid-Electrolyte Interphase on Sodium-Metal Anodes by Anion Modulation for Ambient Sodium-Air Batteries.","authors":"Xiaofeng Lei, Menglin He, Pingli Wu, Chao Ma, Xu Liu, Chongyan Yao, Wenfeng Cui, Qingxu Zhang, Caicai Li, Huiqiao Li, Xizheng Liu","doi":"10.1002/smtd.202401930","DOIUrl":"https://doi.org/10.1002/smtd.202401930","url":null,"abstract":"<p><p>The stabilization of metallic-Na anodes by the fabrication of a mechanically stable solid-electrolyte interphase (SEI) can enable the construction of stable Na-air batteries (NABs) that can be used as practicable energy-storage devices in ambient air. This study reports in situ fabrication of air-stable Na anodes protected by SEI films for stable NABs. The regulation of anions in the electrolyte generated hierarchically layered SEI on Na anodes; the sequential deposition of inorganic salts and organic components is modulated by controlling the competitive reduction of salt and solvent molecules on the Na surface. Metallic-Na anodes with hierarchical SEI comprising an outer salt-rich and inner organic-component-rich layer showed highly reversible stripping/plating. The high stability of the SEI layer in ambient air can be attributed to synergism between its hydrophilic inorganic and hydrophobic organic components. NABs with hierarchical-SEI-modified Na anodes showed stable cycling for >1900 h in ambient air. This study can guide the design of stable metallic anodes and facilitate the future development of diverse Na-based rechargeable batteries.</p>","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2401930"},"PeriodicalIF":10.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143951385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Solvothermal Self-Assembly of Hollow Square-Tubular Polyimides for Aqueous Batteries. 水电池用空心方管聚酰亚胺的溶剂热自组装。
IF 10.7 2区 材料科学
Small Methods Pub Date : 2025-04-30 DOI: 10.1002/smtd.202500251
Ya Zhao, Chaoqiao Yang, Hexiang Zhong, Lin Li, Jiaxin Fan
{"title":"Solvothermal Self-Assembly of Hollow Square-Tubular Polyimides for Aqueous Batteries.","authors":"Ya Zhao, Chaoqiao Yang, Hexiang Zhong, Lin Li, Jiaxin Fan","doi":"10.1002/smtd.202500251","DOIUrl":"https://doi.org/10.1002/smtd.202500251","url":null,"abstract":"<p><p>In this study, a straightforward and environmentally benign solvothermal method for synthesizing hollow square-tubular polyimides (HST-PIs) is introduced. The process utilizes 1,4,5,8-naphthalenetetracarboxylic anhydride and urea as reactants, replacing traditional toxic organic solvents with water and ethanol. This investigation explores the effects of various reaction conditions, such as the water-to-ethanol volume ratio, reaction time, and temperature, on product morphology, resulting in distinct structures like sheets, columns, and layers. Notably, hollow square-tubular polyimides (HST-PIs) are synthesized under specific conditions: a 2:1 water-to-ethanol volume ratio, 24 h reaction time, and 200 °C temperature. This study attributes self-assembly to three primary non-covalent interactions: hydrogen bonding, π-π stacking, and hydrophobic interactions. The gel permeation chromatography (GPC) analysis indicates that the PIs molecular weight predominantly ranges from 10 000 to 15 000. As an electrode material, hollow square tubular polyimides (HST-PIs) exhibit an initial discharge capacity of 297.9 mAh·g<sup>-1</sup> at a current rate of 0.1 C, with a coulombic efficiency of 79%. After ten cycles, the coulombic efficiency improves to 97% and maintains above 98% in the subsequent cycles. This study presents an innovative and environmentally friendly method for the molecular self-assembly of hollow tubular organic polymers.</p>","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2500251"},"PeriodicalIF":10.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143958070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Multipotent Precursor Approach for the Preparation of High-Molecular Weight Conjugated Polymers with Redox Active Units. 制备具有氧化还原活性单元的高分子量共轭聚合物的多能前驱体方法。
IF 10.7 2区 材料科学
Small Methods Pub Date : 2025-04-30 DOI: 10.1002/smtd.202500488
Benedetta Bertoncini, Andrea Taddeucci, Sabrina Trano, Sofia Raviolo, Ilaria Valdrighi, Federico Maria Vivaldi, Virgilio Mattoli, Federico Bella, Marco Carlotti
{"title":"A Multipotent Precursor Approach for the Preparation of High-Molecular Weight Conjugated Polymers with Redox Active Units.","authors":"Benedetta Bertoncini, Andrea Taddeucci, Sabrina Trano, Sofia Raviolo, Ilaria Valdrighi, Federico Maria Vivaldi, Virgilio Mattoli, Federico Bella, Marco Carlotti","doi":"10.1002/smtd.202500488","DOIUrl":"https://doi.org/10.1002/smtd.202500488","url":null,"abstract":"<p><p>Conjugated polymers have long been recognized as key materials in organic electronics, yet, in many instances, their processability remains challenging due to their inherent poor solubility and limited polymerization degrees, which limit the scope of several materials in device fabrication. In this study, a multipotent precursor strategy is introduced that enables the synthesis of high-molecular-weight conjugated materials incorporating either anthracene or anthraquinone units from a single precursor. These latter, based on 9,10-dihydroanthracene units, can be polymerized to high polymerization degrees and possess high solubility and processability, thanks to the flexibility of the main chain and the presence of sacrificial side chains. Different post-polymerization transformations allow the selective generation of conjugated polymers, preserving the polymerization degree and generating, from an identical precursor, different conjugated polymers characterized by a different chemical nature and different electronic characteristics. Remarkably, these transformations can also be performed on the precursors in the solid state without affecting drastically their morphology. Finally, the potential of this methodology is demonstrated in the fabrication of organic field-effect transistors and organic cathodes for potassium-ion batteries.</p>","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2500488"},"PeriodicalIF":10.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143959785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nanoengineering of Boron-Based Materials for Lithium Batteries: Advances, Challenges, and Prospects. 锂电池用硼基材料的纳米工程:进展、挑战和前景。
IF 10.7 2区 材料科学
Small Methods Pub Date : 2025-04-29 DOI: 10.1002/smtd.202500208
Huang Junfeng, Mohammad Tabish, Saira Ajmal, Anuj Kumar, Jianwen Guo, Mohammed Mujahid Alam, Ghulam Yasin
{"title":"Nanoengineering of Boron-Based Materials for Lithium Batteries: Advances, Challenges, and Prospects.","authors":"Huang Junfeng, Mohammad Tabish, Saira Ajmal, Anuj Kumar, Jianwen Guo, Mohammed Mujahid Alam, Ghulam Yasin","doi":"10.1002/smtd.202500208","DOIUrl":"https://doi.org/10.1002/smtd.202500208","url":null,"abstract":"<p><p>Owing to its electron deficiency, boron opens new nanostructures, enabling material science breakthroughs. Boron-based nanoengineering has become a focus of theoretical research since the discovery of graphene, especially in energy storage structures with extraordinary qualities. The instability of boron nanostructures makes their use in modern battery technologies difficult. New nanoengineering methods are improving the redox kinetics, ion adsorption, and structural stability of boron to solve these challenges. Critical knowledge gaps remain despite these efforts, emphasizing the necessity for a synergistic strategy that integrates theoretical and experimental advances. This review emphasizes boron-based nanoengineering at the forefront of next-generation battery electrode design for transformational Li-ion and Li-S batteries. This work explores novel methods such as boron doping in nanocarbons, surface functionalization, and 3D porous borophene structures to improve the stability and electrochemical performance. Additionally, it critically evaluates the scalability, safety, and robustness of borophene-an emergent 2D material set to change the energy landscape. The present study addresses these difficulties to fill gaps and promote innovative research. Borophene could lead to innovations that could change energy storage and beyond.</p>","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2500208"},"PeriodicalIF":10.7,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143952538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stability of sp3 Hybridized Amorphous Carbon and its Transformation to Nanodiamond. sp3杂化非晶碳的稳定性及其向纳米金刚石的转变。
IF 10.7 2区 材料科学
Small Methods Pub Date : 2025-04-29 DOI: 10.1002/smtd.202500294
Yifan Zhao, Chao Zhao, Xiao Wang, Feng Ding
{"title":"Stability of sp<sup>3</sup> Hybridized Amorphous Carbon and its Transformation to Nanodiamond.","authors":"Yifan Zhao, Chao Zhao, Xiao Wang, Feng Ding","doi":"10.1002/smtd.202500294","DOIUrl":"https://doi.org/10.1002/smtd.202500294","url":null,"abstract":"<p><p>A newly synthesized carbon allotrope, fully sp<sup>3</sup>-hybridized amorphous carbon (sp<sup>3</sup>-AC), has generated widespread research interest, especially in terms of structural stability and evolution. Here, the molecular simulations with machine learning force field to explore the origin of its stability and the structural transformation from sp<sup>3</sup>-AC to diamond is performed. It is found that the diffusion of carbon in the covalently bonded sp<sup>3</sup>-AC is extremely slow. Although the sp<sup>3</sup>-AC exhibits a higher energy than diamond, the nucleation of diamond within it remains thermodynamically unfavorable. The transformation from sp<sup>3</sup>-AC to diamond is impeded by an exceptionally high nucleation energy barrier of ≈17 eV, contributing to its kinetic stability. Analysis indicates that diamond nucleation within sp<sup>3</sup>-AC induces a localized density reduction, which may serve as the underlying mechanism that inhibits nucleation and suppresses continuous growth. As a result, annealing the sp<sup>3</sup>-AC at high temperature and high pressure leads to a specific type of composite, where randomly oriented diamond nanocrystals are evenly distributed in sp<sup>3</sup>-AC. The specific composite of sp<sup>3</sup>-AC-nanodiamond serves as an intermediate between sp<sup>3</sup>-AC and diamond, which reveals the underlying mechanism of recent experimental observation of sp<sup>3</sup>-AC-nanodiamond composite.</p>","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2500294"},"PeriodicalIF":10.7,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143956094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
MXene-Based Nanocomposites for Supercapacitors: Fundamentals and Applications. 基于mxene的超级电容器纳米复合材料:基础和应用。
IF 10.7 2区 材料科学
Small Methods Pub Date : 2025-04-29 DOI: 10.1002/smtd.202401751
Nanasaheb M Shinde, Martin Pumera
{"title":"MXene-Based Nanocomposites for Supercapacitors: Fundamentals and Applications.","authors":"Nanasaheb M Shinde, Martin Pumera","doi":"10.1002/smtd.202401751","DOIUrl":"https://doi.org/10.1002/smtd.202401751","url":null,"abstract":"<p><p>MXene-based nanocomposite materials with other 2D materials have made a large impact in the field of energy storage, particularly in the area of supercapacitors. Combining conductive 2D MXene with other 2D materials, such as transition metal oxide, transition metal dichalcogenides, and layered double hydroxide, improves the electrochemical energy storage properties of resulting MXene-based nanocomposites. The interface of MXene and 2D nanocomposite materials allows an improved electrochemical performance for energy storage applications. In this review, state-of-the-art research progress in 2D/2D MXene-based nanocomposite synthesis, structural and morphological properties, and electrochemical performance for supercapacitors is explored. 2D MXene nanocomposites electrochemical properties in terms of specific capacitance, energy, power densities, and stability are discussed. This study shows that this rapidly developing field has an important impact on the next-generation supercapacitor.</p>","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2401751"},"PeriodicalIF":10.7,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143961808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Eutectoid Reaction Enabling In Situ Construction of Titanium Based Ternary Heterostructures for Boosted Lithium Polysulfide Conversion. 共析反应使原位构建钛基三元异质结构促进锂多硫化物转化。
IF 10.7 2区 材料科学
Small Methods Pub Date : 2025-04-29 DOI: 10.1002/smtd.202500157
Maoqiang Shen, Yang Liu, Xinyue Gao, Xuesen Liu, Yanhao Zhao, Linrui Hou, Changzhou Yuan
{"title":"Eutectoid Reaction Enabling In Situ Construction of Titanium Based Ternary Heterostructures for Boosted Lithium Polysulfide Conversion.","authors":"Maoqiang Shen, Yang Liu, Xinyue Gao, Xuesen Liu, Yanhao Zhao, Linrui Hou, Changzhou Yuan","doi":"10.1002/smtd.202500157","DOIUrl":"https://doi.org/10.1002/smtd.202500157","url":null,"abstract":"<p><p>Typical shuttle effect of lithium polysulfides (LiPSs) and slow kinetics of redox reactions seriously hinder the potential application of lithium-sulfur batteries (LSBs). Herein, a titanium based ternary accordion heterostructure (i.e., TiC-TiN-TiO<sub>2</sub>) is first fabricated through an acid-assisted eutectoid reaction of Ti<sub>3</sub>CN MXene obtained via efficiently gas-etching of Ti<sub>3</sub>AlCN MAX. The in situ crystal reconstruction not only creates functional sur/interface configuration but generates built-in electric field (BIEF) at the crystal interfaces, which induce interfacial charge redistribution and accelerate electronic/ionic conductions of the whole heterostructures. Besides, the well-defined functions of conductive TiC, adsorptive TiO<sub>2</sub>, and catalytic TiN enable the efficient fixation and conversion of LiPSs. Accordingly, LSBs assembled with the TiC-TiN-TiO<sub>2</sub> modified separators demonstrate a remarkable reversible capacity of 1185 mAh g<sup>-1</sup> at 0.5 C, and an outstanding capacity retention of 778 mAh g<sup>-1</sup> after 500 cycles with a decay rate of 0.078% per cycle. Moreover, excellent rate capability (838 mAh g<sup>-1</sup> at 5 C) and superior cycling stability with high sulfur loading (3.7 mg cm<sup>-2</sup>) and low electrolyte/sulfur ratio (6.0 µL mg<sup>-1</sup>) are also achieved. More significantly, the eutectoid reaction of solid solution MXenes it devised here provides an innovative avenue to design functional hierarchical heterostructures for high-performance LSBs and beyond.</p>","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2500157"},"PeriodicalIF":10.7,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143959497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Scalable Laser Manufacturing of High-Aspect-Ratio Superhydrophobic and Ferromagnetic Microcilia Arrays for Aqueous Droplet Transportation. 用于液滴输送的高纵横比超疏水和铁磁微纤毛阵列的可扩展激光制造。
IF 10.7 2区 材料科学
Small Methods Pub Date : 2025-04-26 DOI: 10.1002/smtd.202500500
Min Tan, Rongrong Gong, Yi Chen, Minseong Kim, Xupeng Lu, Huan Liu, Rongliang Yang, Yang Xu, Haosong Zhong, Yangyi Huang, Zhiyong Fan, Yang Liu, Mitch Guijun Li
{"title":"Scalable Laser Manufacturing of High-Aspect-Ratio Superhydrophobic and Ferromagnetic Microcilia Arrays for Aqueous Droplet Transportation.","authors":"Min Tan, Rongrong Gong, Yi Chen, Minseong Kim, Xupeng Lu, Huan Liu, Rongliang Yang, Yang Xu, Haosong Zhong, Yangyi Huang, Zhiyong Fan, Yang Liu, Mitch Guijun Li","doi":"10.1002/smtd.202500500","DOIUrl":"https://doi.org/10.1002/smtd.202500500","url":null,"abstract":"<p><p>Biological cilia exhibit metachronal movements that enable the expulsion of substances such as mucus and bacterial cells. Inspired by biological cilia, significant progress has been made in recent years in the development of artificial cilia. In particular, magnetic actuation has emerged as a prominent strategy for real-time, remote-controlled manipulation, offering noninvasive and reversible operation without inducing irreversible damage. However, the fabrication of artificial microcilia is currently constrained by limitations in achieving high aspect ratios, cost-effectiveness, and scalable production. In this study, advanced laser manufacturing is used to drill porous silicon (Si) templates, successfully demolding microcilia with a high aspect ratio (exceeding 9). By integrating silicon dioxide (SiO<sub>2</sub>) nanoparticles, a superhydrophobic surface is achieved with a hierarchical micro-nano structure. The experiments demonstrated that these structured microcilia not only exhibit remarkable durability but also maintain long-term superhydrophobicity. Furthermore, by blending with magnetic iron (II, III) oxide (Fe<sub>3</sub>O<sub>4</sub>) nanoparticles, superhydrophobic magnetic microcilia arrays (SMMA) are developed, enabling droplet transportation on their surface controlled by an external magnetic field. These artificial microcilia have potential applications in biomedical devices, self-cleaning anti-fouling surfaces, and human sensing technologies.</p>","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2500500"},"PeriodicalIF":10.7,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143956893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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