Subham Saha, Baidyanath Roy, Tamal Dey, Chirantan Ganguly, James Bullock, Ranjith R. Unnithan, Samit K. Ray
{"title":"Tunable Resistive Switching in CsPbBr3 Nanocrystal-Based Memristors for Artificial Synapse and Neuromorphic Applications","authors":"Subham Saha, Baidyanath Roy, Tamal Dey, Chirantan Ganguly, James Bullock, Ranjith R. Unnithan, Samit K. Ray","doi":"10.1002/admt.202500720","DOIUrl":"https://doi.org/10.1002/admt.202500720","url":null,"abstract":"<p>The growing demand for energy-efficient, brain-inspired computing has driven interest in memristors for neuromorphic hardware. All-inorganic halide perovskite cesium lead bromide (CsPbBr<sub>3</sub>) is a promising material for memristor-based artificial synapses due to its mixed ionic-electronic conductivity, low activation energy of bromide vacancy, and superior defect tolerance. This study demonstrates tunable resistive switching properties of a forming-free memristor with CsPbBr<sub>3</sub> nanocrystals, achieving both digital (abrupt) and analog (gradual) switching for neuromorphic applications. The fabricated device exhibits stable non-volatile digital switching behavior with an ON/OFF ratio of 10<sup>3</sup>, endurance of 500 cycles, and a high retention time of 4000 s with relatively low SET and RESET voltage, along with displaying gradual conductance states with appropriate voltage pulses. The device replicates various key biological synaptic functionalities, including short-term plasticity, long-term plasticity, and paired-pulse facilitation, spike rate-dependent plasticity, which can be controlled by the amplitude and duration of the applied bias. The potentiation and depression characteristics are utilized to train an artificial neural network, achieving 93.2% classification accuracy for handwritten digit recognition. This work highlights a reliable method to control switching dynamics in CsPbBr<sub>3</sub> nanocrystal-based memristors, making them suitable for data storage and in-memory computing applications.</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":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230766","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}
Shravanthi Rajasekar, Anushree Chakravarty, Kimia Asadi Jozani, Brenda Truong, Matana Hendrickson, Ahmed Attia, Muna Sabouny, Anna Basatskaya, Sergi Clotet-Freixas, Madeleine Ludlow, Alexander Sotra, Dawn S. Y. Lin, Feng Zhang, Boyang Zhang
{"title":"A High-Throughput AngioPlate Platform with Integrated AngioTEER for Modeling and Monitoring Renal Proximal Tubule Injury","authors":"Shravanthi Rajasekar, Anushree Chakravarty, Kimia Asadi Jozani, Brenda Truong, Matana Hendrickson, Ahmed Attia, Muna Sabouny, Anna Basatskaya, Sergi Clotet-Freixas, Madeleine Ludlow, Alexander Sotra, Dawn S. Y. Lin, Feng Zhang, Boyang Zhang","doi":"10.1002/admt.202500658","DOIUrl":"https://doi.org/10.1002/admt.202500658","url":null,"abstract":"<p>Renal tubular injury is the leading cause of acute and chronic kidney diseases. This condition occurs when renal proximal tubular epithelial cells sustain damage from exposure to nephrotoxins, infections, or ischemia leading to tubular interstitial fibrosis and eventually organ failure. Despite its severity, the pathophysiology of several renal tubular injuries remains inadequately understood with no treatment due to lack of predictive preclinical models. Here a model of renal proximal tubules is reported on an AngioPlate platform integrated with Trans Electrical Epithelial Resistance measurements (AngioTEER) for automated, real-time monitoring of tubular barrier integrity in 128 tissues in health and in response to injury. The platform is used to successfully model drug and hypoxia-induced tubular injuries. In addition, the platform's use of amenable extracellular matrices is leveraged to model renal fibrosis by co-culturing fibroblasts with renal proximal tubules. Given the lack of approved treatments for tubulointerstitial fibrosis, the possibility of repurposing pirfenidone is explored, a drug currently approved for lung fibrosis, and found that it may offer a potential therapeutic effect for this challenging condition. Overall, this work demonstrates the versatility of our engineered 3D renal proximal tubule model to study renal disease mechanisms and screen potential treatment options.</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.202500658","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230769","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":"Constructing a Supramolecular Photosensitizer to Enhance Solid-State Emission and Promote Fabrication Volume Grating","authors":"Azhu Wang, Xianwei Zhao, Kaixun Liu, Qingduo Wang, Jun Yu, Pei Li, Yiming Zhang, Haining Chen, Weiping Li, Xiaoyu Jiang","doi":"10.1002/admt.202500609","DOIUrl":"https://doi.org/10.1002/admt.202500609","url":null,"abstract":"<p>Visible-light-driven photopolymerization is a promising approach for fabricating high-quality volume holographic gratings, with applications spanning high-density data storage, augmented reality displays, and diffractive optical elements. However, a major limitation in this field is the aggregation-caused quenching (ACQ) of organic dye-based photosensitizers, which reduces their solid-state emission efficiency and hinders energy transfer to co-initiators. To overcome this challenge, a supramolecular strategy, integrated with density functional theory (DFT) calculations, is employed for the rapid screening and precise identification of the most compatible cyclodextrin host molecules. Methyl-<i>β</i>-cyclodextrin (Me-<i>β</i>-CD) is identified as the optimal host and utilized to encapsulate the dye 2,4-Bis(4-(diethylamino)benzylidene)cyclobutanone (C4) by a hydrothermal method. The resulting inclusion complex, stabilized by hydrogen bonding and van der Waals forces interactions, exhibit a twofold increase in fluorescence quantum yield, reaching 32% and significantly enhanced diffraction efficiency. This work highlights a novel strategy combining supramolecular chemistry to overcome ACQ and optimize photopolymerization systems, paving the way for advanced functional photopolymers in optical applications.</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":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230767","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":"Unveiling the Kinetics of Ion Transport in 2D Potassium Niobate by Raman Spectroscopy","authors":"Xiaorui Jin, Yeming Zhai, Xinyue Chang, Weijun He, Xiaofen Liu, Lan Lan, Ning Zhang, Yongan Yang, Chuancheng Jia, Meiling Wu, Kai-Ge Zhou","doi":"10.1002/admt.202500046","DOIUrl":"https://doi.org/10.1002/admt.202500046","url":null,"abstract":"<p>The development of advanced solid-state electrolytes is crucial for improving the performance of energy storage devices. Despite various research focusing on ionic conductivity and mobility, there is a critical gap in understanding the kinetic mechanisms of ion transport, especially at the nanoscale. This study analyzes the ion transport kinetics in 2D layered potassium niobate (K<sub>4</sub>Nb<sub>6</sub>O<sub>17</sub>), a promising solid-state electrolyte, using Raman spectroscopy. A correlation between interlayer Nb─O bonds in two types of channels and Raman peaks is established. By monitoring changes in Nb─O bond vibrations within the nanochannels of K<sub>4</sub>Nb<sub>6</sub>O<sub>17</sub>, it is revealed that alkali ions such as Na<sup>+</sup> and Li<sup>+</sup> follow pseudo-first-order transport kinetics. This kinetics model identifies distinct differences in the transport rates and activation energies between two types of nanochannels. Na⁺ and Li⁺ exhibit faster transport in type I channels due to lower energy barriers compared to type II channels. Additionally, the spatial distribution analysis reveals anisotropic ion transport in K<sub>4</sub>Nb<sub>6</sub>O<sub>17</sub>, facilitating the tracking of ion locations and transport pathways within the material. This work introduces a kinetic model for real-time tracking of ion transport quantitatively in 2D materials, enhancing the understanding of ion transport kinetics in solid-state electrolytes.</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":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230768","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":"Highly Sensitive Portable Test Strip Based on Carboxylate Cellulose-Derived Carbon Dots for On-Site Visual Detection of Nitrite in Food Samples","authors":"Chengyi Hong, Biao Yang, Mukaidaisi Aili, Yifei Jiang, Hongfen Yang, Muling Shi, Quansheng Chen, Ren Cai","doi":"10.1002/admt.202500709","DOIUrl":"https://doi.org/10.1002/admt.202500709","url":null,"abstract":"<p>As a common food additive, nitrites are used in processed meat products, primarily for color enhancement and preservation. Excessive intake of nitrites can lead to high toxicity to pose a significant risk to human health, including potential carcinogenicity and even death. Consequently, developing a rapid and sensitive method for nitrite detection is crucial for food safety monitoring. Herein, this study is developing a nitrite detection system utilizing blue-fluorescent carbon dots (CDs) derived from carboxylate cellulose. This system operates by detecting the quenching of CDs fluorescence, which is caused by Fe<sup>3</sup>⁺ ions generated via the oxidation of Fe<sup>2</sup>⁺ by nitrite under acidic conditions. Within a concentration range of 1–1000 µ<span>m</span>, the system demonstrates a strong linear relationship between CDs fluorescence intensity and nitrite concentration, with a detection limit of 0.42 µ<span>m</span>. Furthermore, this study is designing a novel CDs-based fluorescent test strip for rapid and visual nitrite quantification in pakchoi cabbage samples, enabling detection within 30 min. Overall, the CDs-based fluorescent test strips hold great promise for enhancing food safety monitoring, ensuring effective nitrite control, and protecting public health from the potential risks associated with excessive nitrite consumption.</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":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230798","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}
Andrew J. Erwin, Shiyu Hu, Hua Zhou, Samuel D. Miller, Evan J. Musterman, Andrew M. Kiss, Yang Yang, Yuepeng Zhang, Wei Chen
{"title":"Tunable 3D Aerosol Jet Printing of Low-Power Redox-Gated Transistors with Multicomponent Inks","authors":"Andrew J. Erwin, Shiyu Hu, Hua Zhou, Samuel D. Miller, Evan J. Musterman, Andrew M. Kiss, Yang Yang, Yuepeng Zhang, Wei Chen","doi":"10.1002/admt.202500648","DOIUrl":"https://doi.org/10.1002/admt.202500648","url":null,"abstract":"<p>Printed hybrid electronics (PHE) offer a promising alternative for microelectronics fabrication, addressing some limitations of traditional subtractive manufacturing. Despite the versatility of PHE, particularly in the customization of printing inks, these devices have not yet matched the performance of silicon-based electronics due to challenges in gating mechanisms and operational stability. However, the potential of low-voltage redox-gating to achieve significant carrier modulations in correlated metal oxides remains unexplored in PHE. This study systematically investigates vanadium dioxide (VO<sub>2</sub>) nanoparticles and redox inks, linking their organization in solution to their morphology, phase state, and properties in solid films and multilayered structures. Using an aerosol jet printer (AJP), a solid-state VO<sub>2</sub> transistor is fabricated, operating at just 0.4 V gating voltage. The printed VO<sub>2</sub> films demonstrate redox-modulated conductivity and consistent transistor behavior. The solid-state redox gating materials also provide long-term stability, with the device maintaining performance over 6000 cycles without degradation. These results highlight the potential of redox gating to enhance the application of functional nanoparticles in printed hybrid microelectronics, especially for flexible, low-voltage, and energy-efficient devices.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 19","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/admt.202500648","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230652","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":"Enabling High-Accuracy Neuromorphic Computing via Precise Synaptic Weight Tuning in HfOx-Based 3D Vertical Memristors","authors":"Nawoon Kim, Jihee Park, Hyesung Na, Sungjun Kim","doi":"10.1002/admt.202500651","DOIUrl":"https://doi.org/10.1002/admt.202500651","url":null,"abstract":"<p>This study presents a multibit implementation strategy using a vertically stacked resistive random-access memory (VRRAM) that uses an HfO<i><sub>x</sub></i>-based switching layer. The proposed VRRAM device operates via filamentary switching; however, by selectively forming and removing portions of the filament, it effectively mitigates the inherent issues of dispersion and nonlinearity typically associated with filament-based mechanisms. Furthermore, using an incremental step pulse with verify algorithm (ISPVA) measurement method where the device is allowed to reach a predetermined current level before transitioning to the subsequent target further enhances both the linearity and reduces the dispersion of the filamentary memory cell. In addition, the device demonstrates outstanding performance on modified national institute of standards and technology (MNIST) and fashion MNIST datasets, achieving accuracies of 96.65% and 76.50%, respectively, thereby surpassing current state of the art hardware-based implementations. These results collectively advance the scalability and practical feasibility of next-generation neuromorphic computing systems.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 19","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230653","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}
Cassi J. Henderson, Zehao Ji, Miaomiao Zou, Xijin Hua, Thomas Stone, Sebastian W. Pattinson
{"title":"Lightweight and High-Performance Ankle Braces Enabled by 3D Printed Metamaterial Liquid Crystal Polymer","authors":"Cassi J. Henderson, Zehao Ji, Miaomiao Zou, Xijin Hua, Thomas Stone, Sebastian W. Pattinson","doi":"10.1002/admt.202500729","DOIUrl":"https://doi.org/10.1002/admt.202500729","url":null,"abstract":"<p>Ankle sprains significantly affect individuals’ mobility and functional ability. Ankle braces can provide external mechanical support around joints to prevent injurious ankle inversions. However, existing braces are often bulky and rigid, resulting in discomfort and restricted mobility for device users. Herein, a flexible, lightweight, and customizable ankle brace is proposed, with high performance that is achieved via 3D-printed liquid crystal polymer (LCP) mechanical metamaterials, leveraging molecular alignment and architected geometry to achieve programmable transition points between low- and high-stiffness behavior. Biomechanical simulations, optimization, and design of experiments are conducted to validate the proposed brace design and to evaluate the brace performance under high-risk scenarios. The effectiveness of the 3D-printed ankle braces is assessed in a gait lab using optical motion capture. Results showed that the 3D-printed brace provided the same level of protection as an off-the-shelf lace-up brace against sudden ankle inversion motions while not restricting natural ankle movements during walking. Compared to the off-the-shelf brace, the weight and thickness of the LCP-based brace are noticeably reduced. Similar structures coordinating macro and molecular-scale structures via 3D printing can be applied to other orthoses and medical devices generally, improving the quality of life for individuals with musculoskeletal injuries and other conditions.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 19","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/admt.202500729","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230826","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":"Electrochemical Nanosensors: Fabrication, Functionalization, and Intracellular Measurement","authors":"Wen-Tao Wu, Yong Wan","doi":"10.1002/admt.202500684","DOIUrl":"https://doi.org/10.1002/admt.202500684","url":null,"abstract":"<p>Cells are the basic structural and functional units of living organisms, within which a cascade of vital biological processes occur in an unceasing manner. The detailed examination of intracellular dynamic processes is essential for unraveling life essence and advancing life science frontiers. Nevertheless, a single living cell constitutes an extremely tiny and complex system, and thereby intracellular measurement puts substantial demands on analytical tools. Recently, due to the high spatiotemporal resolution, powerful quantitative ability, and minimal damage to cell vitality, nanoelectrode-based electrochemical nanosensors exhibit great superiority in intracellular measurement. This review highlights crucial developments in materials and techniques for the fabrication and functionalization of nanoelectrodes, which are exploited for electrochemical sensing of various biomarkers and intracellular monitoring of dynamic biological events at single-cell level. Finally, considering nanoelectrode preparation and biological applications, challenges and perspectives of electrochemical nanosensors are discussed.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 19","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230651","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}
Suyong Park, Donghyun Ryu, Sungjoon Kim, Woo Young Choi, Sungjun Kim
{"title":"Fully CMOS Compatible Charge Trap Memory-Based Reservoir Computing System","authors":"Suyong Park, Donghyun Ryu, Sungjoon Kim, Woo Young Choi, Sungjun Kim","doi":"10.1002/admt.202500858","DOIUrl":"https://doi.org/10.1002/admt.202500858","url":null,"abstract":"<p>Reservoir computing (RC) systems have gained considerable attention for their effectiveness in temporal data processing. Although extensive research has been conducted on RC systems, studies focusing on complementary metal-oxide semiconductor-compatible flash memory devices remain scarce. In this study, the potential of RC systems based on TiN/Al<sub>2</sub>O<sub>3</sub>/Si<sub>3</sub>N<sub>4</sub>/SiO<sub>2</sub>/poly-Si (TANOS) is explored, utilizing the high-pressure annealing (HPA) process to enhance the performance of the device. Specifically, HPA-treated TANOS devices are employed in the readout layer to ensure stable long-term memory characteristics, while untreated TANOS devices are used in the reservoir layer, leveraging their short-term memory properties induced by interfacial traps. This study also investigates the feasibility of TANOS devices for neuromorphic computing. Based on Modified National Institute of Standards and Technology simulations, the complete TANOS-based RC system achieves a recognition rate of 84.48%, demonstrating its potential for temporal pattern recognition tasks.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 19","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230655","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}