Advanced Materials Technologies最新文献

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High-Power Rapid Laser-Induced Synthesis of Multi-functional Cobalt Metal-Organic Framework With an Unprecedented Synthesis Efficiency 高功率快速激光诱导合成多功能金属钴-有机骨架具有前所未有的合成效率
IF 6 3区 材料科学
Advanced Materials Technologies Pub Date : 2026-08-21 Epub Date: 2026-04-30 DOI: 10.1002/admt.202502487
Saliha Mutlu, Bülend Ortaç, Ali Karatutlu, Taylan Gorkan, Engin Durgun, Dilek Soyler, Saniye Soylemez, Jelena Lillepäg, Volkan Filiz, Nergis Arsu, Sevil Savaskan Yilmaz
{"title":"High-Power Rapid Laser-Induced Synthesis of Multi-functional Cobalt Metal-Organic Framework With an Unprecedented Synthesis Efficiency","authors":"Saliha Mutlu,&nbsp;Bülend Ortaç,&nbsp;Ali Karatutlu,&nbsp;Taylan Gorkan,&nbsp;Engin Durgun,&nbsp;Dilek Soyler,&nbsp;Saniye Soylemez,&nbsp;Jelena Lillepäg,&nbsp;Volkan Filiz,&nbsp;Nergis Arsu,&nbsp;Sevil Savaskan Yilmaz","doi":"10.1002/admt.202502487","DOIUrl":"https://doi.org/10.1002/admt.202502487","url":null,"abstract":"<p>A rapid, high-yield laser-assisted synthesis route with an exceptional production efficiency (≥90%) is introduced for cobalt-based metal–organic frameworks (Co-MOFs), producing ordered hybrid structures within an hour that integrate optical, magnetic, and adsorption functionalities. The Co-MOFs exhibit tunable properties, including a low-temperature paramagnetic transition confirmed by magnetic measurements and first-principles calculations. Gas adsorption studies reveal promising performance for N<sub>2</sub>, CH<sub>4</sub>, and CO<sub>2</sub>, combining low energy consumption with cost-effective gas separation. Structural analysis indicates mesoporosity with high accessibility, supporting selective uptake under practical conditions. Importantly, Co-MOF-modified graphite electrodes demonstrate outstanding electrochemical sensing performance for dopamine, achieving a low detection limit (5.5 µ<span>M</span>), high sensitivity (121 µA mM<sup>−</sup><sup>1</sup> cm<sup>−</sup><sup>2</sup>), and excellent reproducibility in human serum. These results underline the multifunctional potential of laser-synthesized Co-MOFs as scalable platforms that couple sustainable gas separation with biomedical diagnostics, advancing the development of framework materials for real-world applications.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"11 16","pages":""},"PeriodicalIF":6.0,"publicationDate":"2026-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admt.202502487","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148785146","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}
引用次数: 0
Immune Microphysiological Systems for Human Innate Immunity 人类先天免疫的免疫微生理系统
IF 6 3区 材料科学
Advanced Materials Technologies Pub Date : 2026-08-21 Epub Date: 2026-05-20 DOI: 10.1002/admt.71051
Sujin Kim, Yoonho Lee, Eunseo Park, Minseo Byeon, Hyeri Choi, Seokyoung Bang, Noo Li Jeon, Jihoon Ko
{"title":"Immune Microphysiological Systems for Human Innate Immunity","authors":"Sujin Kim,&nbsp;Yoonho Lee,&nbsp;Eunseo Park,&nbsp;Minseo Byeon,&nbsp;Hyeri Choi,&nbsp;Seokyoung Bang,&nbsp;Noo Li Jeon,&nbsp;Jihoon Ko","doi":"10.1002/admt.71051","DOIUrl":"https://doi.org/10.1002/admt.71051","url":null,"abstract":"<div>\u0000 \u0000 <p>Reconstituting human immune function in vitro remains challenging due to the spatial organization, dynamic signaling, and multicellular coordination underlying immune responses. Immune microphysiological systems (iMPS) address limitations of conventional 2D cultures, organoids, and animal models by integrating human-derived cells within microengineered environments that recapitulate tissue-specific immune microenvironments. This review outlines the cellular, structural, and functional requirements for designing immune-competent microphysiological systems (MPS). We describe design strategies enabling spatiotemporal control of cell positioning, fluid flow, chemokine gradients, and matrix mechanics, and discuss material considerations influencing immune cell survival, migration, and polarization. We further summarize applications of iMPS across key innate immune populations, including natural killer cells, dendritic cells, and macrophages, with emphasis on cytotoxic, antigen sampling, chemotaxis, and tumor–immune interactions. Finally, we discuss future directions including multi-organ immune modeling, integration of patient-derived cells, and standardization to support translational research and therapeutic development.</p>\u0000 </div>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"11 16","pages":""},"PeriodicalIF":6.0,"publicationDate":"2026-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148785149","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}
引用次数: 0
A Miniature Two-Degree-of-Freedom Bipedal Piezoelectric Motor Driven by Low Voltage 低压驱动的微型二自由度双足压电电机
IF 6 3区 材料科学
Advanced Materials Technologies Pub Date : 2026-08-21 Epub Date: 2026-05-14 DOI: 10.1002/admt.71048
Jinfeng Liu, Yuhang He, Xiangyu Gao, Wei Chen, Guofang Xiong, Rui Li, Haiyu Zhang, Fei Li
{"title":"A Miniature Two-Degree-of-Freedom Bipedal Piezoelectric Motor Driven by Low Voltage","authors":"Jinfeng Liu,&nbsp;Yuhang He,&nbsp;Xiangyu Gao,&nbsp;Wei Chen,&nbsp;Guofang Xiong,&nbsp;Rui Li,&nbsp;Haiyu Zhang,&nbsp;Fei Li","doi":"10.1002/admt.71048","DOIUrl":"https://doi.org/10.1002/admt.71048","url":null,"abstract":"<div>\u0000 \u0000 <p>The demand for miniaturized, multi-degree-of-freedom (DOF) piezoelectric motors with high power density and low driving voltage is growing across advanced technology fields. Achieving compact size while maintaining multi-DOF motion and superior performance remains challenging. This study presents a bio-inspired two-DOF bipedal piezoelectric motor (BPM), which is fabricated via the multilayer co-fired technology. The motor consists of a 1.9 mm<i><sup>Height</sup></i> × 1.9 mm<i><sup>Width</sup></i> × 7 mm<i><sup>Length</sup></i> bipedal piezoelectric stator (BPS) that is equipped with two friction tips, and the motor operate in coupled longitudinal and bending (<i>L</i><sub>1,X</sub><i>B</i><sub>2,Z</sub> and <i>B</i><sub>2,Y</sub><i>B</i><sub>2,Z</sub>) vibration modes. At a peak-to-peak driving voltage of 3.3 V<sub>PP</sub>, the motor achieves velocities of 115 mm s<sup>−1</sup> (X-axis) and 110 mm s<sup>−1</sup> (Y-axis), maximum loads of 120 mN (X-axis) and 110 mN (Y-axis), as well as minimum step resolutions of 0.41 µm (X-axis) and 0.33 µm (Y-axis). Notably, it achieves a power density per unit voltage of 25.64 mW cm<sup>−</sup><sup>3</sup> V<sup>−1</sup>, which is more than 40 times higher than previous reported multi-DOF piezoelectric motors. These results demonstrate the motor's potential for applications in micro-nano processing, portable electronics, and biomedical devices.</p>\u0000 </div>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"11 16","pages":""},"PeriodicalIF":6.0,"publicationDate":"2026-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148783575","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}
引用次数: 0
Dynamic Dual-network Multifunctional Ionic Gel Based on Phytate Deep Eutectic Solvent for Flexible Sensors 基于植酸盐深共晶溶剂的柔性传感器动态双网络多功能离子凝胶
IF 6 3区 材料科学
Advanced Materials Technologies Pub Date : 2026-08-21 Epub Date: 2026-05-14 DOI: 10.1002/admt.71049
Guojing Chen, Yunjiang Liu, Junlu Zhang, Zhenqian Ma, Xinrui Wang, Chunpeng Chai
{"title":"Dynamic Dual-network Multifunctional Ionic Gel Based on Phytate Deep Eutectic Solvent for Flexible Sensors","authors":"Guojing Chen,&nbsp;Yunjiang Liu,&nbsp;Junlu Zhang,&nbsp;Zhenqian Ma,&nbsp;Xinrui Wang,&nbsp;Chunpeng Chai","doi":"10.1002/admt.71049","DOIUrl":"https://doi.org/10.1002/admt.71049","url":null,"abstract":"<div>\u0000 \u0000 <p>Conductive ionic gels integrating mechanical robustness and dynamic adaptability are highly desirable for flexible electronics, yet their development is hindered by the trade-off between ion-conductive efficiency and structural stability. Herein, a hydrated deep eutectic solvent (DES)-enhanced ionic gel fabricated by integrating phytic acid (PA) and choline chloride (ChCl) into a polyvinyl alcohol (PVA)/polysaccharide sodium alginate (SA) matrix via a cyclic freeze-thaw process is reported. The hydrated DES serves as a dynamic cross-linker and ionic conductor, enabling dual-network interactions through hydrogen bonding and electrostatic forces. The resultant gel achieves a high electrical conductivity of 5.16 S m<sup>−1</sup>, tunable mechanical strength (0.2–1 MPa), and exceptional strain sensitivity. The ice crystal-like micropores formed during freezing enhance strain dissipation and swelling adaptability. The prepared conductive ionic gels have a wide strain detection range and can detect motion signals from different parts of the human body, and demonstrates excellent freeze resistance at low temperatures (−60°C). PA confers strong antimicrobial activity to the PVA/SA gel, with inhibition circles 6.5 and 4.6 times larger than the sample diameter for <i>E. coli</i> and <i>S. aureus</i>, respectively. This work provides a scalable, eco-friendly strategy to engineer multifunctional ionic gels for next-generation wearable sensors and adaptive interfaces.</p>\u0000 </div>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"11 16","pages":""},"PeriodicalIF":6.0,"publicationDate":"2026-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148783578","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}
引用次数: 0
Recent Advances in Inkjet Printing for Flexible Electronics: Technologies, Materials, Devices, and Applications 柔性电子喷墨印刷的最新进展:技术、材料、设备和应用
IF 6 3区 材料科学
Advanced Materials Technologies Pub Date : 2026-08-21 Epub Date: 2026-05-19 DOI: 10.1002/admt.71055
Peilin Zhou, Guangrui Xiang, Dandan Xu, Junru Ma, Qingwang Li, Hongji Guo, Jiachen Wu, Haozhe Wang, Yueqing Xia, Xiuli Zhang, Haibo Yu, Lianqing Liu
{"title":"Recent Advances in Inkjet Printing for Flexible Electronics: Technologies, Materials, Devices, and Applications","authors":"Peilin Zhou,&nbsp;Guangrui Xiang,&nbsp;Dandan Xu,&nbsp;Junru Ma,&nbsp;Qingwang Li,&nbsp;Hongji Guo,&nbsp;Jiachen Wu,&nbsp;Haozhe Wang,&nbsp;Yueqing Xia,&nbsp;Xiuli Zhang,&nbsp;Haibo Yu,&nbsp;Lianqing Liu","doi":"10.1002/admt.71055","DOIUrl":"https://doi.org/10.1002/admt.71055","url":null,"abstract":"<div>\u0000 \u0000 <p>Flexible electronic devices are increasingly being utilized in a wide range of applications in healthcare, information technology, and energy because of their flexibility, stretchability, and enhanced resistance to bending fatigue. The development of flexible electronics is closely related to material selection, structural design, and manufacturing processes. Among these, the manufacturing processes applied serve as primary driving forces that directly affect the functionality, scalability, and cost of devices. Compared with traditional manufacturing technologies, inkjet printing has the unique advantages of high-efficiency, low-cost, exceptional flexibility, and superior material utilization rate. Consequently, inkjet printing has become the key technology in accelerating the development of flexible electronics. This review systematically discusses recent advancements in inkjet printing technology for flexible electronics. First, the working principles of several inkjet printing technologies are introduced. Next, the characteristics of various functional ink materials are summarized. This review also discusses recent advances in the manufacturing and performance optimization of typical flexible electronics via inkjet printing. Subsequently, the emerging applications of inkjet-based flexible electronics, such as clinical medicine, intelligent human-machine interaction, and energy are presented. Finally, the development prospects and major challenges of inkjet-based flexible electronics are analyzed and summarized.</p>\u0000 </div>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"11 16","pages":""},"PeriodicalIF":6.0,"publicationDate":"2026-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148784716","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}
引用次数: 0
Characterization of Droplet Formation in Ultrasonic Spray Coating: Influence of Ink Formulation Using Phase Doppler Anemometry and Machine Learning (Adv. Mater. Technol. 15/2026) 超声喷涂中液滴形成的表征:使用相位多普勒风速法和机器学习的油墨配方的影响。抛光工艺。15/2026)
IF 6 3区 材料科学
Advanced Materials Technologies Pub Date : 2026-08-07 DOI: 10.1002/admt.71195
Pieter Verding, Danny E. P. Vanpoucke, Yunus T. Aksoy, Tobias Corthouts, Maria R. Vetrano, Wim Deferme
{"title":"Characterization of Droplet Formation in Ultrasonic Spray Coating: Influence of Ink Formulation Using Phase Doppler Anemometry and Machine Learning (Adv. Mater. Technol. 15/2026)","authors":"Pieter Verding,&nbsp;Danny E. P. Vanpoucke,&nbsp;Yunus T. Aksoy,&nbsp;Tobias Corthouts,&nbsp;Maria R. Vetrano,&nbsp;Wim Deferme","doi":"10.1002/admt.71195","DOIUrl":"https://doi.org/10.1002/admt.71195","url":null,"abstract":"<p><b>Printable Electronic Materials</b></p><p>This special issue highlights flexible, stretchable and printable electronic materials for sustainable healthcare, sensing and actuation, energy applications and interconnections. Among many articles, Maximilian Krack, Lennert Purnal, Asad Ullah, Monika Rai, Wim Deferme and co-workers present advanced fabrication approaches of stretchable electronics with a liquid metal conductor and demonstrate their potential in nature-inspired strain sensors for fruit monitoring applications. See, for example, Research Article e02104.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"11 15","pages":""},"PeriodicalIF":6.0,"publicationDate":"2026-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admt.71195","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148696030","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}
引用次数: 0
3D Printing of Stretchable, Compressible and Conductive Porous Polyurethane for Soft Robotics (Adv. Mater. Technol. 15/2026) 柔性机器人用可拉伸、可压缩、导电多孔聚氨酯的3D打印研究抛光工艺。15/2026)
IF 6 3区 材料科学
Advanced Materials Technologies Pub Date : 2026-08-07 DOI: 10.1002/admt.71196
Ouriel Bliah, Konstantin Sakharov, Pooi See Lee, Shlomo Magdassi
{"title":"3D Printing of Stretchable, Compressible and Conductive Porous Polyurethane for Soft Robotics (Adv. Mater. Technol. 15/2026)","authors":"Ouriel Bliah,&nbsp;Konstantin Sakharov,&nbsp;Pooi See Lee,&nbsp;Shlomo Magdassi","doi":"10.1002/admt.71196","DOIUrl":"https://doi.org/10.1002/admt.71196","url":null,"abstract":"<p><b>Simultaneous Sensor and Structural Element</b></p><p>A fully 3D-printed, conductive soft gripper has been developed through catechol-based metallization. This process transforms porous architectures into monolithic units acting as both actuator body and sensor, and overcoming the challenge of complex assembly of separate parts. By enabling in-situ metallization in DLP-printable soft materials, these conductive lattices enable soft robots to sense their environment with high reliability. See Research Article e02588 by Shlomo Magdassi and co-workers for more details.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"11 15","pages":""},"PeriodicalIF":6.0,"publicationDate":"2026-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admt.71196","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148696139","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}
引用次数: 0
Smart and Sustainable Sizing: Investigating the Sensing Behavior of Glass Fabrics Coated With Waterborne Polyurethane/Graphene Dispersions 智能和可持续上浆:研究水性聚氨酯/石墨烯分散体涂层玻璃织物的传感行为
IF 6 3区 材料科学
Advanced Materials Technologies Pub Date : 2026-08-07 Epub Date: 2026-02-08 DOI: 10.1002/admt.202502030
Vishnu Vijayan Pillai, Premika Govindaraj, Sai Aditya Pradeep, Olivia Sequerth, Srikanth Pilla, Franz Konstantin Fuss, Peter Kingshott, Nishar Hameed, Nisa V Salim
{"title":"Smart and Sustainable Sizing: Investigating the Sensing Behavior of Glass Fabrics Coated With Waterborne Polyurethane/Graphene Dispersions","authors":"Vishnu Vijayan Pillai,&nbsp;Premika Govindaraj,&nbsp;Sai Aditya Pradeep,&nbsp;Olivia Sequerth,&nbsp;Srikanth Pilla,&nbsp;Franz Konstantin Fuss,&nbsp;Peter Kingshott,&nbsp;Nishar Hameed,&nbsp;Nisa V Salim","doi":"10.1002/admt.202502030","DOIUrl":"https://doi.org/10.1002/admt.202502030","url":null,"abstract":"<p>The study focuses on developing smart, sustainable sizing agents that impart functional properties to glass fabrics (GFs). A series of graphene/waterborne polyurethane (WPU) dispersions is formulated and optimised to transform insulative GFs into electrically conductive ‘smart’ fabrics with strain-sensing capabilities. The novelty of this work lies in a stable, waterborne graphene sizing formulation that enables direct, single-step dip-coating of GFs, eliminating the need for multi-layer deposition, post-processing, or hazardous chemicals. Dispersion stability is assessed using T<sub>2</sub> relaxation time measurements on a nuclear magnetic resonance (NMR) spectrometer. The optimised formulation used to coat the GFs in this study exhibits good dispersion stability (T<sub>2</sub> value of 822.7 ms), higher than that of the other formulations developed. This enhanced stability directly contributed to uniform coating morphology and effective electrical conductivity across the GFs. Additionally, comprehensive material characterisation is conducted to analyse the structural, morphological, and chemical properties of the advanced graphene/WPU formulations. Electromechanical testing demonstrates reproducible piezoresistive behavior under cyclic compressive loading, with force estimation accuracy remaining below 10% (RMSE) for loads exceeding 1000 N and improving to below 4% for loads within 1.2–5 kN. The force–conductance calibration shows strong reproducibility (R<sup>2</sup> ≈ 1), supporting reliable sensing performance under medium-to-high load regimes relevant to structural health monitoring (SHM). The findings of the study offer a sustainable and scalable alternative to traditional solvent-based systems, addressing environmental concerns while enabling high-performance applications in composite manufacturing.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"11 15","pages":""},"PeriodicalIF":6.0,"publicationDate":"2026-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admt.202502030","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148696287","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}
引用次数: 0
Flexible Chemiresistive Chitosan-Glycerol Sensors on Laser-Induced Graphene Electrodes for Room-Temperature Ammonia Detection 基于激光诱导石墨烯电极的柔性化学抗性壳聚糖-甘油传感器用于室温氨检测
IF 6 3区 材料科学
Advanced Materials Technologies Pub Date : 2026-08-07 Epub Date: 2026-03-25 DOI: 10.1002/admt.202502109
Mintesinot Tamiru Mengistu, Richard Murray, Cara-Lena Nies, Cathal Larrigy, Martina Piletti, Jahidul Islam, Daniela Iacopino, Eileen Hurley, Michael Nolan, Aidan J. Quinn
{"title":"Flexible Chemiresistive Chitosan-Glycerol Sensors on Laser-Induced Graphene Electrodes for Room-Temperature Ammonia Detection","authors":"Mintesinot Tamiru Mengistu,&nbsp;Richard Murray,&nbsp;Cara-Lena Nies,&nbsp;Cathal Larrigy,&nbsp;Martina Piletti,&nbsp;Jahidul Islam,&nbsp;Daniela Iacopino,&nbsp;Eileen Hurley,&nbsp;Michael Nolan,&nbsp;Aidan J. Quinn","doi":"10.1002/admt.202502109","DOIUrl":"https://doi.org/10.1002/admt.202502109","url":null,"abstract":"<p>We report a metal-free sensor platform combining laser induced graphene (LIG) electrodes with drop-deposited, glycerol-plasticized chitosan biopolymer formulations for sustainable, chemiresistive detection of ammonia at room temperature. Increasing the glycerol v/v concentration from 2.5% to 7% yielded a logarithmic reduction (&gt;400-fold) in baseline device resistance (R<sub>0</sub>) at 60% RH. Devices fabricated using 5% glycerol showed chemiresistive response, ΔR/R<sub>0</sub> = −16% ± 1% (n = 4) at 79 ppm NH<sub>3</sub> (∼60% RH) with linear range 5–45 ppm and limit of detection ∼6–8 ppm. Chitosan-LIG devices showed excellent selectivity for ammonia over other volatile organic compounds (VOCs), with concentration-normalized responses for ammonia exceeding those of other VOCs by factors of 25–80. Devices showed minimal hysteresis (&lt;2% cycle-to-cycle variation); good repeatability (ΔR/R<sub>0</sub>∼19% ± 1.5% at 79 ppm; 20 cycles), and excellent stability over six weeks (R<sub>0</sub> = 3.41–3.53 MΩ, ΔR/R<sub>0</sub> = −8% ± 2%, for 18 ppm NH<sub>3</sub>. Flexibility tests (1500 cycles) showed ≤20% baseline drift and &lt;3% variation in ΔR/R<sub>0</sub>, highlighting the potential for future flexible or wearable devices. Finally, proof-of-concept monitoring in high-humidity environments (∼85% RH), showed chemiresistive signatures for fish spoilage, with ΔR/R<sub>0</sub> ∼ −46% ± 14% for devices mounted above ∼20 g fish in 5 mL water vs. ΔR/R<sub>0</sub> ∼+21% ± 10%, for reference devices (water only).</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"11 15","pages":""},"PeriodicalIF":6.0,"publicationDate":"2026-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admt.202502109","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148696579","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}
引用次数: 0
3D Printing of Stretchable, Compressible and Conductive Porous Polyurethane for Soft Robotics 用于软机器人的可拉伸、可压缩和导电多孔聚氨酯的3D打印
IF 6 3区 材料科学
Advanced Materials Technologies Pub Date : 2026-08-07 Epub Date: 2026-02-06 DOI: 10.1002/admt.202502588
Ouriel Bliah, Konstantin Sakharov, Pooi See Lee, Shlomo Magdassi
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