Advanced Materials Technologies最新文献

{"title":"Green Light Vat-Photopolymerisation for 3D Printing Hydrogels with Complex Lattice Structures","authors":"Livia M. Kalossaka,&nbsp;Ali A. Mohammed,&nbsp;Laura Bastos,&nbsp;Laura M. C. Barter,&nbsp;Connor W. Myant","doi":"10.1002/admt.202500090","DOIUrl":"https://doi.org/10.1002/admt.202500090","url":null,"abstract":"<p>Moving beyond UV curing systems opens new potential application spaces such as biological, portable printing solutions, as well as innovative chemistries and material properties. A novel visible light printer is proposed for the first time using green Digital Light Processing (gDLP) at a wavelength of 514 nm. Green LED lights are integrated into a commercial desktop DLP printer to 3D print hydrogels with complex designs at high resolution. A workflow process is presented to develop and optimize formulations for gDLP, resulting in two novel in-house photoresin formulations made specifically for green light printing. These formulations comprise <span></span><math>\u0000 <semantics>\u0000 <msub>\u0000 <mi>PEGDA</mi>\u0000 <mn>700</mn>\u0000 </msub>\u0000 <annotation>${rm PEGDA}_{700}$</annotation>\u0000 </semantics></math> with and without acrylamide, using a type II photoinitiating system of Eosin Y, triethylamine, and N-vinylpyrrolidone. The photoresins are optimized to achieve highly vascularized lattice prints by modulating layer light exposure, chemical components, and photoinitiator concentrations. The gDLP successfully printed hydrogels with a layer height of 50 <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>μ</mi>\u0000 <mi>m</mi>\u0000 </mrow>\u0000 <annotation>$umu{rm m}$</annotation>\u0000 </semantics></math> and feature dimensions as small as 0.3 mm by adjusting light duration per layer. 3D printed hydrogels using both formulations are tested for varying design complexity, including ISO/ASTM standards, and evaluated with optical imaging, SEM, and mechanical testing. This study highlights gDLP technology's potential for diverse applications in tissue engineering and sustainable materials.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 19","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/admt.202500090","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230629","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":"Transformative 4D Printed SMPs into Soft Electronics and Adaptive Structures: Innovations and Practical Insights","authors":"Muhammad Yasir Khalid,&nbsp;Adam Otabil,&nbsp;Omar Samir Mamoun,&nbsp;Khalid Askar,&nbsp;Mahdi Bodaghi","doi":"10.1002/admt.202500309","DOIUrl":"https://doi.org/10.1002/admt.202500309","url":null,"abstract":"<p>Shape memory polymers (SMP) have recently gained significant attention as multifunctional materials for flexible and wearable electronics applications. These polymers demonstrate smart functionalities, including self-healing and shape memory, with tunable, reversible responses that enhance advancements in soft electronics technology. The integration of smart materials with 3D printing (3DP) has also emerged as a transformative technology, enabling the creation of sophisticated architectures in the soft wearable electronics industry. This review highlights recent advancements in 3DP techniques that incorporate emerging multifunctional SMP materials for applications in e-electronics, soft actuators, biomedical devices, and many more. Strategies to commercialize this technology by addressing key challenges related to materials, 3DP technology, and multifunctionality on a large scale are discussed. Additionally, how 2D materials and sustainability can be integrated into 3DP to provide an innovative and robust platform for future researchers, with a focus on soft wearable electronics applications is explored. Finally, the current challenges in developing more advanced and practical applications are outlined and key future directions to foster further progress in this rapidly evolving field are discussed.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 19","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/admt.202500309","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230824","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":"Green In Situ Fabrication of 3D Porous MoO3/Ti3C2Tx Aerogel Films for Enhanced Supercapacitor Performance without Organic Solvents","authors":"Xiaoqing Bin,&nbsp;Bingshan Kong,&nbsp;Minhao Sheng,&nbsp;Wenxiu Que","doi":"10.1002/admt.202500380","DOIUrl":"https://doi.org/10.1002/admt.202500380","url":null,"abstract":"<p>A synergistic modification strategy is adopted to address the restacking issue of MXene nanosheets and enhance the electrochemical performance of MXene-based electrode materials. 3D porous MoO₃/Ti₃C₂T<i>_x</i> aerogel films are successfully prepared via the in- situ synthesis of MoO₃ nanobelts on Ti₃C₂T<i>_x</i> MXene using (NH₄)₆Mo₇O₂₄·4H₂O as a molybdenum source. This environmentally friendly method, involving freeze-drying and carbonization processes, eliminates the need for organic reagents and complex operations like repeated centrifugation and washing. Besides, the construction of a 3D porous structure and the in-situ introduction of additional pseudocapacitance into MXene as a synergistic modification strategy can effectively improve the restacking of MXene nanosheets, fully expose the electrochemical reaction active sites, and significantly enhance their electrochemical performance. Consequently, the as-fabricated MoO₃/Ti₃C₂T<i>_x</i> aerogel film electrode achieved a specific capacitance of 430.74 F g⁻¹ at 2 mV s⁻¹, a 42.06% improvement compared to the pure MXene film. It also demonstrated good rate performance at high scan-rates (200 mV s⁻¹) and retained 93.10% of its capacitance after 9000 charge–discharge cycles. The excellent electrochemical performances of high specific capacitance and long-cycling stability make the MoO₃/Ti₃C₂T<i>_x</i> aerogel films promising materials for supercapacitors, and the synergistic modification strategy also provides new insights for fabricating highly efficient electrode materials.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 19","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230849","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 Self-Powered Flexible Bioelectronic System Based on Thermoelectric Generator for Electrotherapy and Monitoring of Chronic Wounds","authors":"Jingjiang Lv,&nbsp;Xin Li,&nbsp;Zijian An,&nbsp;Zhenghan Shi,&nbsp;Yikun Li,&nbsp;Yi Xu,&nbsp;Jun Liu,&nbsp;Qingjun Liu","doi":"10.1002/admt.202500332","DOIUrl":"https://doi.org/10.1002/admt.202500332","url":null,"abstract":"<p>Endogenous electric fields in wounds play a crucial role in promoting cell migration and proliferation. To mimic or enhance these electric fields for wound healing, external electrical stimulation is widely adopted. However, most methods rely on bulky equipment or battery-powered systems, requiring frequent recharging or replacement, which hinders continuous, self-sustained treatment. Here, a self-powered, flexible bioelectronic is presented, system based on thermoelectric generators (TEG), which converts body heat into electricity to stimulate chronic wound healing while monitoring the wound microenvironment. The TEG is optimized for high performance by adjusting the fill factor, membrane thickness, and thermal conductivity, achieving a normalized power density of 6.996 µW cm⁻² K². In vitro, the electrical output accelerated cell migration and proliferation by 70.4% compared to the control. In a rat model, electrical stimulation effectively accelerated wound healing. As an indicator of healing, the pH of wound exudate in the treatment group showed more significant changes, confirming electrotherapy efficacy and providing real-time healing assessment. This work presents a self-powered, closed-loop system combining electrotherapy and wound monitoring, harnessing body heat for continuous on-demand treatment.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 19","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230848","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":"Review of Ultrasonic Sensing Techniques in Micromachining Applications","authors":"Shaokuan Wu,&nbsp;Yihan Wei,&nbsp;Peixuan Zhang,&nbsp;Yunchu Shen,&nbsp;Xuhui Sun,&nbsp;Zhen Wen","doi":"10.1002/admt.202500169","DOIUrl":"https://doi.org/10.1002/admt.202500169","url":null,"abstract":"<p>Ultrasonic sensors fabricated using microelectromechanical systems (MEMS) technology are characterized by their miniaturization, high integration, and low power consumption. In recent years, these sensors gain significant attention and become a major research focus. The rapid advancement of micromachining technology has further highlights their importance. Capacitive microelectromechanical ultrasonic transducers (CMUT), piezoelectric microelectromechanical ultrasonic transducers (PMUT), and triboelectric microelectromechanical ultrasonic transducers (TMUT) demonstrate broad application potential in fields such as non-destructive testing, medical imaging, and environmental monitoring due to their unique advantages. This review comprehensively examines these three types of ultrasonic sensors, beginning with detailed descriptions of the structures and working principles of CMUT, PMUT, and TMUT, as well as their mechanisms for generating and receiving ultrasonic signals. It also explores the manufacturing processes involved in sensor fabrication, addressing key steps and challenges in micromachining. Additionally, the review discusses the applications of these sensors, comparing their advantages and limitations relative to traditional transducers. While CMUT, PMUT, and TMUT offer distinct benefits, they also present specific limitations. The review concludes by envisioning the potential impact of micromechanical ultrasonic transducers (MUT) in emerging fields, with the expectation that ongoing technological innovations will revolutionize related industries.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 19","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230850","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":"Stretchable Dielectric Fluid Pumps for Soft Fluid Power Systems","authors":"Hongbiao Sun,&nbsp;Lisheng Zhang,&nbsp;Chengliang Tao,&nbsp;Yi Huang,&nbsp;Jiawei Liu,&nbsp;Jiangxin Wang","doi":"10.1002/admt.202500798","DOIUrl":"https://doi.org/10.1002/admt.202500798","url":null,"abstract":"<p>Soft fluid power systems offer advantages of flexible output designs, ease of control, and simple structures, which enable them to facilitate a wide range of intriguing applications in soft and interactive human-machine interfaces. Fluid pumps play a pivotal role in fluid power systems. However, the performance of soft fluid pumps developed for fluid power systems remains limited, requiring further research to improve their mechanical compliance and output capabilities. Here, a stretchable dielectric fluid pump (DFP) is presented that can provide silent and flexible controls of pressurized fluids to power hydraulic circuits. The device can provide pressures up to 8 kPa and instantaneous flow rates up to 304 mL min⁻¹ with a minimum thickness of 2.2 mm. An equivalent circuit model is proposed to provide new insights into the working mechanism of stretchable pumps driven by electrostatic actuation. As a peristaltic pump, it is capable to drive loads consistently in the hydraulic circuit and can be easily augmented through design of the hydraulic circuit to lift substantial loads. With its advantages of quiet operation, lightweight design, and large compliance, the DFP is expected to advance next-generation soft fluid power technologies for soft robots, wearable machines, and electro-fluidic hybrid systems.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 19","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230829","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":"Eutectic Gallium–Indium in Fabricating and Integrating Molecular Devices","authors":"Yu Xie,&nbsp;Zhou Cao,&nbsp;Wuxian Peng,&nbsp;Yuan Li","doi":"10.1002/admt.202500674","DOIUrl":"https://doi.org/10.1002/admt.202500674","url":null,"abstract":"<p>Molecular electronics and molecular devices based on self-assembled monolayers (SAMs), offer a transformative pathway for next-generation circuits at nanoscale toward ultrahigh integration. A critical challenge lies in fabricating reliable molecular junctions, particularly integrating stable top electrodes without damaging SAMs. Eutectic gallium-indium (EGaIn), a liquid metal alloy, has emerged as a versatile solution, enabling non-invasive, reproducible, and stable top electrodes. This review highlights key EGaIn-based techniques—conical tips, microfluidics, print, and stamping—for fabricating molecular junctions, logic gates, and circuits. The advancement of EGaIn methods gradually address challenges such as contact precision, yield, stability and scalability, enabling the study of charge transport mechanisms and the development of functional molecular devices.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 19","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230836","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":"Non-Destructive Monitoring of Internal Temperature Distribution in Prismatic Li-Ion Battery Cells with Ultrasound Tomography","authors":"Shengyuan Zhang,&nbsp;Peng Zuo,&nbsp;Zheng Fan","doi":"10.1002/admt.202500750","DOIUrl":"https://doi.org/10.1002/admt.202500750","url":null,"abstract":"<p>Large prismatic cells are increasingly being used as the primary power source in transportation applications. Effective online thermal management of these cells is crucial for ensuring safety and maximizing performance. However, significant discrepancies between surface and internal temperatures make it difficult to detect internal thermal anomalies promptly, which hinders effective thermal management and increases the risk of irreversible thermal hazards. This paper introduces an innovative technology for thermal management in prismatic Li-ion batteries. By exploiting the temperature sensitivity of ultrasound velocity and applying tomographic reconstruction based on surrounding measurements, the technology enables detailed cross-sectional thermal imaging. This allows for non-destructive, real-time visualization of internal temperatures. Furthermore, with its compact design and cost-effectiveness, this technology is suitable for in-situ deployment, offering a precise feedback mechanism for online thermal management. Demonstrations conducted during continuous discharging scenarios have shown that the system can identify high-temperature regions near the tabs that remain undetected by surface thermocouples. This advancement has the potential to significantly reduce the risk of fires or explosions while enhancing battery performance in electric vehicles and other applications involving battery cells.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 19","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230835","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":"Microdroplet Magnetic Field Sensor Utilizing Magneto-Birefringence Effect","authors":"Martin Horvat,&nbsp;Patricija Hribar Boštjančič,&nbsp;Darja Lisjak,&nbsp;Alenka Mertelj,&nbsp;Natan Osterman","doi":"10.1002/admt.202500795","DOIUrl":"https://doi.org/10.1002/admt.202500795","url":null,"abstract":"<p>Despite advancements in magnetometry, achieving precise, real-time local magnetic field sensing in microscale systems remains a significant challenge. Here, a compact and versatile magnetic field sensor is presented that utilizes magnetically induced birefringence in micrometer-sized droplets of an isotropic suspension of magnetic nanoplatelets. By measuring the light intensity with crossed polarizers, it is demonstrated that the sensor's capability to detect magnetic fields in the millitesla range with high sensitivity. Experimental results, supported by numerical simulations, confirm the sensor's accuracy and robustness. Its practical application is validated by measuring the magnetic field of a bent current-carrying wire at the microscale. Additionally, a method is introduced for determining both the magnitude and direction of an unknown field using a specialized polarization camera. This novel approach offers a promising pathway for precise, real-time magnetic field sensing in microfluidic and lab-on-chip applications, combining high spatial resolution with optical detection advantages.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 19","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/admt.202500795","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230770","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":"Advanced Optical Integration Processes for Photonic-Integrated Circuit Packaging","authors":"Keuntae Baek,&nbsp;Minhyeok Kim,&nbsp;Hak-Sung Kim,&nbsp;Jinho Ahn,&nbsp;Hongyun So","doi":"10.1002/admt.202401848","DOIUrl":"https://doi.org/10.1002/admt.202401848","url":null,"abstract":"<p>Photonic integrated chip packaging is a promising technology for integrating optical components into devices, enabling high-speed data transmission, wide bandwidth, low latency, and high energy efficiency. This technology is expected to overcome the limitations of traditional electronic component technologies. Particularly, recent advancements in high-performance semiconductors, quantum computing, and data centers demand high-speed data processing and transmission. In response to these demands, device packaging developments have focused on achieving compactness, high efficiency, and high performance. Photonic integrated chip packaging emerges as a promising approach to meet these demands. This review discusses the latest developments in photonic integrated chip packaging at the component, chip, and system levels. It also highlights the current issues and challenges of these technologies and provides future perspectives.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 19","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/admt.202401848","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230765","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}