Yongrui Cai, Can Zhou, Zichuan Ding, Jiaxuan Fan, Yahao Lai, Chao Huang, Boyi Jiang, Hongxiang Cai, Zongke Zhou, Zeyu Luo
{"title":"Oxygen-Releasing Hydrogels in Biomedicine: Present and Future","authors":"Yongrui Cai, Can Zhou, Zichuan Ding, Jiaxuan Fan, Yahao Lai, Chao Huang, Boyi Jiang, Hongxiang Cai, Zongke Zhou, Zeyu Luo","doi":"10.1002/admt.202500362","DOIUrl":"10.1002/admt.202500362","url":null,"abstract":"<p>Oxygen-releasing hydrogels (ORHs) have emerged as innovative biomedical platforms capable of delivering controlled oxygen through chemical, physical, or biological mechanisms, demonstrating significant potential in enhancing tissue regeneration, disease treatment, and biomedical engineering applications. Concurrently, their therapeutic performance and application scope are also shaped by fabrication strategies, with bulk hydrogel networks, electrospinning nanofibrous matrices, 3D bioprinted architectures, and transdermal microneedle systems each providing distinct spatiotemporal control over oxygen release profiles. Finally, ORHs effectively promote critical biological processes including cell proliferation, angiogenesis, and wound healing across dermal, cardiovascular, and neural systems. Overall, the development and application of ORHs represent a significant advancement in biomedicine with far-reaching implications for improving patient treatment outcomes. This review aims to explore the diverse uses and preparations of ORHs while highlighting their impact on biology and medicine.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 18","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145101062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Unified Enhanced Quasi-Electrostatic 3D Charge Model for Accurate Prediction and Design Optimization of Contact‒Separation Triboelectric Nanogenerators","authors":"Seokjin Kim, Jang‒Woo Han, Jihoon Chung","doi":"10.1002/admt.202500401","DOIUrl":"10.1002/admt.202500401","url":null,"abstract":"<p>An integrated theoretical model for a vertical contact‒ and separation‒ mode triboelectric nanogenerator (VCS‒TENG) is presented to improve the accuracy of electrostatic behavior predictions and forecast its electrical output characteristics more effectively. Existing theoretical models for VCS‒TENG are reviewed and unified to develop a new model. The formulation used to evaluate the electric potential difference is modified, and a mathematical technique is introduced for simplification. The newly derived model is validated by comparing it with experimental results. Moreover, the effects of various parameters on the electrical output characteristics are investigated using theoretical and experimental methods, and similar trends are observed. This new theoretical model can be used to predict VCS‒TENG output performance and optimize its structural design.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 18","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/admt.202500401","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145101064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Role of Silver Nanowires in Modulating Electron and Phonon Transport in Ag2Se-based Thermoelectric Materials","authors":"Dejwikom Theprattanakorn, Thanayut Kaewmaraya, Supree Pinitsoontorn","doi":"10.1002/admt.202500093","DOIUrl":"10.1002/admt.202500093","url":null,"abstract":"<p>This study investigates the role of silver nanowires (AgNWs) in modulating the thermoelectric properties of bulk Ag<sub>2</sub>Se nanocomposites. Ag<sub>2</sub>Se samples with varying AgNW contents (0, 0.25, 0.5, and 1 wt.%) are synthesized using liquid-phase sintering, and their structural, morphological, and thermoelectric properties are thoroughly analyzed. X-ray diffraction confirmed the orthorhombic <i>β</i>-Ag<sub>2</sub>Se phase as the primary structure, with a cubic silver (Ag) phase emerging at higher AgNW concentrations. SEM and TEM analyses showed that AgNWs are uniformly dispersed at lower concentrations, reducing porosity and enhancing relative density, while excessive AgNW content led to agglomeration, affecting both charge and phonon transport. Electrical conductivity increased significantly with AgNW addition due to enhanced charge injection and reduced activation energy, while the Seebeck coefficient exhibited a moderate decline. Optimal AgNW incorporation (0.25 wt.%) not only enhanced the power factor but also reduced lattice thermal conductivity, leading to a peak figure-of-merit (<i>zT</i>) of 0.79 at 320 K and an average <i>zT</i> of 0.74 across the 300–380 K range. The observed changes in thermoelectric properties of the Ag<sub>2</sub>Se+AgNW nanocomposites are further elucidated through the calculation of the quality factor. These findings highlight the critical role of controlled AgNW addition in optimizing thermoelectric performance by balancing electronic and thermal transport properties.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 18","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145101061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mingxin Xun, Jing Li, Shijing Zhang, Jipeng Yan, Yingxiang Liu
{"title":"A Bio-Inspired Parallel Ultrasonic Manipulation Platform with 3-DOF Motions, Fast Speed and High Resolution","authors":"Mingxin Xun, Jing Li, Shijing Zhang, Jipeng Yan, Yingxiang Liu","doi":"10.1002/admt.202500721","DOIUrl":"10.1002/admt.202500721","url":null,"abstract":"<p>Conventional ultrasonic platforms typically rely on multi-mode degeneracy within a single elastic structure and single-foot for actuation, necessitating mechanical guides to ensure motion stability. However, these guides restrict the expansion of motion degrees of freedom (DOFs), particularly rotational motion. Inspired by the four-leg coordinated actuation mechanism of the traditional Chinese lion dance, this study proposes a parallel ultrasonic platform employing four vertically mounted piezoelectric actuators with the degeneracy of longitudinal and bending modes. This configuration enables stable X, Y, and Θ<sub>z</sub> DOF actuation without the need for mechanical guidance. Furthermore, driving redundancy is introduced by configuring an angular deflection between actuators, allowing the platform to trade-off between speed and resolution. In fast mode, the platform achieves linear and rotational speeds of 285 mm s<sup>−1</sup> and 380° s<sup>−1</sup>, respectively, while in precise mode, it attains resolutions of 90 nm and 40 µrad. Mode switching is accomplished simply by adjusting the driving signals. Finally, wafer inspection and cellular observation experiments are carried out as proof-of-concept demonstrations of the suitability of the platform for basic micro-operation tasks.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 18","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145101060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Photoresist-Assisted 3D Printing for Rapid Fabricating Circular Microchannel","authors":"Xiaoshi Han, Hui Chang, Yingze Wangguan, Chengji Song, Dongqing Li, Yongxin Song","doi":"10.1002/admt.202500225","DOIUrl":"10.1002/admt.202500225","url":null,"abstract":"<p>While 3D printing-based microchannel fabrication is advantageous in terms of simple and time-saving, the rough surface of the fabricated channel limits its wide application. To address this problem, this paper introduces a photoresist-assisted 3D printing technique for fabricating circular master molds tailored for soft microchannel fabrication. The effects of photoresist spin-coating speeds and 3D-printed convex microstructure sizes on surface roughness and the sizes of the fabricated microchannel are investigated. It is found that after photoresist spin-coating, the surface roughness of the printed microstructure is reduced to 15.44 nm. The thickness of the coated photoresist film and the bottom width of the microchannel decreased with the increase in spin-coating speed, while the channel height is the same as that of 3D-printed microstructures. Parallel microchannels with a separation distance of 65.75 µm are fabricated. This technique is further applied for fabricating a pneumatically actuated microvalve and a straight microchannel with variable heights for real-time detection and counting of living microalgae.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 18","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145101063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhenhua Ji, Jiaqi Liu, Yun He, Hongdian Yang, Liquan Zhang, Shiyu Guan, Yao Ni, Ting Wu
{"title":"Stretchable Synaptic Device with Photonic-Electric Dual Mode for Sign Language Recognition","authors":"Zhenhua Ji, Jiaqi Liu, Yun He, Hongdian Yang, Liquan Zhang, Shiyu Guan, Yao Ni, Ting Wu","doi":"10.1002/admt.202500632","DOIUrl":"10.1002/admt.202500632","url":null,"abstract":"<p>This work presents a photonic-electric dual-mode synaptic transistor based on a stretchable carbon nanotube/ polydimethylsiloxane substrate and poly(3-hexylthiophene) (P3HT) nanofibers. High-crystallinity P3HT nanofiber channels are fabricated via solvent engineering and self-assembly techniques, while the dynamic ion migration characteristics of the device enabled excellent synaptic plasticity under both unstrained and stretched conditions. The device exhibited key synaptic behaviors, including excitatory postsynaptic current, paired-pulse facilitation, and spike-frequency-dependent plasticity. Experimental results demonstrated that the device maintained stable electrical performance under 40% tensile strain (current fluctuation standard deviation σ < 0.57 µA) and successfully enabled real-time monitoring of finger bending postures and gesture recognition. Furthermore, by modulating synaptic weights with optical pulses, the device exhibited broadband photo response (400–650 nm) and high-frequency feature extraction capabilities, mimicking the contour enhancement mechanism of the biological visual system and enabling optical-encoded letter recognition. This study provides new insights for the development of multimodal neuromorphic electronic devices, with promising applications in intelligent electronic skin, soft robotics, and real-time image processing.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 18","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145101301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Weilei Mu, Binghang Li, Chunxu Zhao, Junfeng Du, Yang Liu, Rong Yin
{"title":"Biomimetic Foxtail Grass Actuator Based on Liquid-Gas Phase Transition","authors":"Weilei Mu, Binghang Li, Chunxu Zhao, Junfeng Du, Yang Liu, Rong Yin","doi":"10.1002/admt.202500487","DOIUrl":"10.1002/admt.202500487","url":null,"abstract":"<p>Liquid-gas phase transition actuation technology, known for its high efficiency, strong output, lightweight flexibility, and environmental friendliness, holds great potential in soft robotics, bioinspired devices, smart sensors, and microelectromechanical systems. However, current technology faces challenges such as low actuation efficiency, insufficient thermal management, and long response times. To address these issues, this study draws inspiration from the unique multiscale fiber structure of foxtail grass and designs a bioinspired liquid-gas phase transition actuator. The actuator features a spike-shaped heat exchange structure composed of composite gradient fiber materials, simulating the water absorption, transpiration, and fog collection mechanisms of foxtail grass. This design effectively enhances heat transfer efficiency and optimizes response speed. Bending and linear deformation tests verif the actuator's high responsiveness and adaptability. Additionally, its application in bioinspired underwater pufferfish models and pipeline robots demonstrates high efficiency and stability in dynamic environments. Compared to traditional phase transition actuation technologies, this study significantly improves thermo-mechanical coupling efficiency, reduces response lag, and overcomes critical limitations of existing technologies. The findings provide new insights and theoretical foundations for the broader application and future development of phase transition actuation technology.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 18","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145101274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Bionic Design and 3D Printing of Leaf-Vein Like Ceramic/Resin Composite Liquid Cooling Plates with Excellent Thermal Management Capacity","authors":"Zhichao Gong, Jingyi Chen, Rujie He, Zhaoliang Qu","doi":"10.1002/admt.202500708","DOIUrl":"10.1002/admt.202500708","url":null,"abstract":"<p>Inspired by leaf vein structures, this study presents a bio-inspired channel liquid-cooled plate designed to enhance thermal management performance. Topological optimization and cross-sectional design are employed to reduce flow resistance and improve heat transfer efficiency. Among various cross-sectional shapes (rectangular, pentagonal, hexagonal, and elliptical), the elliptical section exhibited superior flow and thermal performance. Specifically, it achieves a 31.7% improvement in temperature reduction capability (ΔT) compared to the rectangular section, while also demonstrating a 20.7% increase in average flow velocity and better temperature uniformity. The material demonstrates excellent thermal and electrical properties suitable for high-temperature applications, as evidenced by FT-IR analysis, thermal conductivity measurements (4.489 W m<sup>−1</sup> K<sup>−1</sup> at 25 °C and 5.557 W m<sup>−1</sup> K<sup>−1</sup> at 150 °C), specific heat capacity (1.000 J g<sup>−1</sup> K<sup>−1</sup> at 25 °C and 1.276 J g<sup>−1</sup> K<sup>−1</sup> at 150 °C), and electrical resistivity (1.06 GΩ cm at 25 °C with stability at elevated temperatures). Infrared thermography shows significant temperature reductions for the bio-inspired design under various initial temperatures, with its thermal conductivity being twice that of conventional straight channels. This study highlights the superior fluid flow efficiency, thermal dissipation, and structural stability of the bio-inspired liquid-cooled plate, demonstrating its promising potential for high-power electronic heat management applications.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 18","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Review of MXene Memristive Networks: Atomic-Scale Engineering to Neuromorphic System Integration","authors":"Shuai Yang, Jialin Wang, Dongchen Tan, Nan Sun, Haohao Shi, Sheng Bi, Chengming Jiang","doi":"10.1002/admt.202500685","DOIUrl":"10.1002/admt.202500685","url":null,"abstract":"<p>With the ever-growing demands of artificial intelligence and big data, the advancement of the conventional von Neumann framework is increasingly hindered by limitations in memory and power consumption. The human brain's energy-efficient neural mechanisms (e.g., synaptic plasticity) have driven innovations in brain-inspired computing architectures. Inspired by this, memristors, especially those containing MXenes, can efficiently simulate low-power, high-performance synaptic behaviors. MXenes are known for their tunable surface chemistry and excellent electrical conductivity, enabling the fabrication of superior neuromorphic components under ambient conditions. This study elucidates the effectiveness of MXene memristors in simulating synaptic plasticity and adaptive learning, thoroughly examines the challenges in advancing neuromorphic systems, and outlines future directions, thereby providing new possibilities for revolutionizing artificial intelligence and computing technologies.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 18","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hyo Chan Hong, Si Yeon Park, Heewon Jin, Jeong In Ryu, Seung Jun Baek, Dalsu Choi, Hyo Chan Lee
{"title":"Growth of High-Quality Graphene from Solid Polycyclic Aromatic Hydrocarbons Using a Sealed Crucible Method","authors":"Hyo Chan Hong, Si Yeon Park, Heewon Jin, Jeong In Ryu, Seung Jun Baek, Dalsu Choi, Hyo Chan Lee","doi":"10.1002/admt.202402067","DOIUrl":"10.1002/admt.202402067","url":null,"abstract":"<p>The chemical vapor deposition (CVD) of graphene using solid polycyclic aromatic hydrocarbons (PAHs) as carbon sources has emerged as a promising technique for synthesizing high-quality graphene. However, the use of solid PAHs often results in defective graphene, and the underlying growth mechanism remains poorly understood. In this study, the formation of graphene from pyrene, the simplest solid PAH, on Cu foil inside a sealed crucible, is investigated. Initially, pyrene films are converted into amorphous carbon (a-C). This is followed by the gradual crystallization of a-C near the Cu surface into graphene. The sealed crucible confines the carbon sources, preventing the complete etching of graphene and enabling an extended crystallization period. Furthermore, it is demonstrated that reducing the crucible volume extends the crystallization time, resulting in the formation of highly crystalline graphene. Thus, high-quality graphene from pyrene with electron mobility comparable to that produced using CH₄-based CVD is successfully synthesized. These findings demonstrate the potential of solid carbon sources as viable alternatives to CH₄ in graphene synthesis.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 18","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}