{"title":"Wearable Sensor for Continuous Monitoring Multiple Biofluids: Improved Performances by Conductive Metal-Organic Framework with Dual-Redox Sites on Flexible Graphene Fiber Microelectrode","authors":"Wei Huang, Yun Xu, Yong Yang, Jia Sun, Min Hu, Fangyan Hao, Fei Xiao","doi":"10.1002/adfm.202424018","DOIUrl":"https://doi.org/10.1002/adfm.202424018","url":null,"abstract":"Wearable sensors hold significant promise for continuous, real-time, and non-invasive analysis in biofluids. However, current wearable sensor technologies suffer from low accuracy for detecting trace analytes, inevitable signal distortion due to deformation, and inadequate biofluid replenishment. Herein, a wearable electrochemical sensor is developed by integrating designed metal-organic frameworks (MOFs) modified graphene fiber (GF) microelectrode into a flexible microfluidic chip. The proposed atomically precise phthalocyanine-based MOFs, with high-density dual-redox sites and intrinsic conductivity, ensure highly sensitive and selective electrochemical detection of the metabolite uric acid (UA) and tyrosine (Tyr) in biofluids. The freestanding, functionalized GF microelectrode is assembled from graphene nanosheets. Therefore, it exhibits excellent mechanical flexibility, a large surface area, and high temporal/spatial resolution. This contributes to a robust bio-interface adaptable to various skin areas and improves the accuracy for in vivo detection. Consequently, the high-performance electrochemical sensing system based on the GF microelectrode modified by dual-redox-sites MOFs, integrated with a microfluidic chip for efficient collection and rapid replenishment of raw biofluids, results in a practical wearable sensor for real-time monitoring of UA and Tyr in sweat and saliva, which are utilized for non-invasive gout management by tracking metabolite levels in gout patients and healthy controls during a purine-rich dietary challenge.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"23 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143532470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 Flexible Field-Free Spin-Orbit Torque Driven Programmable Spin Logic Device","authors":"Meiling Li, Mengxi Wang, Xiaoguang Xu, Kangkang Meng, Bin He, Guoqiang Yu, Ang Li, Zedong Xu, Youfan Hu, Lian-Mao Peng, Yong Jiang","doi":"10.1002/adfm.202424086","DOIUrl":"https://doi.org/10.1002/adfm.202424086","url":null,"abstract":"Field-free magnetization switching driven by spin-orbit torque (SOT) is an up-and-coming solution for spintronic devices, which enables energy efficient reconfigurable logic-in-memory computing is well-suited for next-generation data-intensive applications. However, the use of ferromagnetic/antiferromagnetic systems in flexible spin logic devices is still in the early stages of development. Here, a polyimide/Ta/Pt/Co/IrMn/Pt-based devices are reported as a potential candidate for flexible field-free programmable spin logic applications. By controlling the exchange bias at the Co/IrMn interface, the flexible Hall bar device has successfully realized SOT-induced magnetization switching under zero field. Basing on its magnetization switching capability, the devices can realize all-electric controlled flexible programmable spin logic. Using two Hall bar devices, AND, NOT, OR, NAND, and NOR Boolean logic functions can be achieved by controlling the path of the pulse current, which provides a new solution for flexible spin-logic devices with all-electric manipulation.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"84 5 Pt 1 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143532476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Graphitization Induction Effect of Hard Carbon for Sodium-Ion Storage","authors":"Sishi Li, Jiaqi Liu, Yuecong Chen, Shuaiqi Li, Pei Tang, Yandong Xie, Shiyin Xie, Zhenyuan Miao, Jian Zhu, Xingbin Yan","doi":"10.1002/adfm.202424629","DOIUrl":"https://doi.org/10.1002/adfm.202424629","url":null,"abstract":"Hard carbon (HC) is regarded as the leading anode material for sodium ion batteries (SIBs), owing to its low sodium storage potential, high reversible specific capacity, abundant precursor sources, and cost-effectiveness. Nevertheless, the randomly oriented amorphous structure and large number of defects in HC result in low initial Coulombic efficiency, inadequate rate performance, and limited cycling stability when utilized as an anode material for SIBs. Therefore, optimizing the microstructure of HC material to obtain both a low defect ratio and large sodium ion transport channels is essential for better sodium storage/release kinetics and cycling stability. This review focuses on the graphitization induction effect on HC. It highlights the key methods and mechanisms of graphitized HC, along with the structure-activity relationship between its microstructure and sodium storage behaviors. Additionally, the advantages, disadvantages, and application feasibility of various induction methods are systematically evaluated. Ultimately, this review discusses the challenges and development directions for designing and constructing HC material with an appropriate level of local graphitization. It offers a novel perspective on the rational design of HC microstructure and scientific theoretical guidance for accelerating the industrial application of HC anode material in SIBs.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"29 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143532464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hongjun Li, Qianghui Dong, Yi Li, Enlai Hu, Yujie Cai, Lin Zhang, Dian Zhao, Hai Guo, Guodong Qian
{"title":"Thermal-Adaptive Photonic MOFs for High-Performance X-ray Scintillator","authors":"Hongjun Li, Qianghui Dong, Yi Li, Enlai Hu, Yujie Cai, Lin Zhang, Dian Zhao, Hai Guo, Guodong Qian","doi":"10.1002/adfm.202500445","DOIUrl":"https://doi.org/10.1002/adfm.202500445","url":null,"abstract":"Dynamic responsive scintillating materials play a significant role in advanced radiation detection technology. However, the issues such as thermal quenching, uncontrollable structure, and unsatisfactory cost, still remain obstacles to the diversified development of recent scintillators. Herein, a strategy is proposed by assembling well-designed inorganic and organic building units with low cost to construct a series of novel lanthanide MOFs for thermal-adaptive X-ray scintillators (TAXS). Based on the delicate energy level design, the as-obtained TAXS present ultra-high relative light yield (max ≈49 700 photons MeV<sup>−1</sup>), tunable luminescence (from green to red band), and low dose rate detection limit (min ≈118.7 nGy<sub>air</sub>s<sup>−1</sup>). Importantly, these TAXS exhibit unique thermal-adaptive behaviors including thermal-facilitated metal-ligand distance contraction and X-ray-induced carrier generation, resulting in obvious enhanced radio-luminescence. They maintain perfect linear response to X-ray (R<sup>2</sup> > 99.8%) and excellent stability (>95% after 215 Gy<sub>air</sub> X-ray irradiation) during heat treatment. Both TAXS-based membranes with high imaging resolution (max ≈24 lp mm<sup>−1</sup>) and inks for customizable printing demonstrate the potential to work normally at elevated temperatures. Such a strategy supports photonic functional MOFs to fabricate high-performance scintillators for harsh condition services.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"66 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143532465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Program the “Light-Flashable” 2D Fluorescent Lifetime Microbarcodes for Precision Information Storage","authors":"Ran Tao, Huijing Wang, Ruijie Hou, Bowen Zheng, Yidan Zhao, Yujie Xie, Zaizai Tong","doi":"10.1002/adfm.202500737","DOIUrl":"https://doi.org/10.1002/adfm.202500737","url":null,"abstract":"The output signals of dynamic microbarcodes with precise control over dimensions can be reversibly altered in response to external stimuli, which have emerged as a promising alternative to information encoding. However, the complexity of multi-dimensional encoding and the high requirements for precision in nano/microscale fabrication still present significant challenges. Herein, “Light-Flashable” two-dimensional (2D) polymeric fluorescent lifetime microbarcodes are prepared with excellent control of size, components, and functionalities using the technique known as living crystallization-driven self-assembly seeded growth method, optimizing for nanoscale spatial programmability of encoding patterns, light-triggered dynamic output, and quantitative fluorescence lifetime output. By carefully modulating the output signals, the integration of photoswitchable spiropyrans facilitates “Light-Flashable” dynamic signaling by controlling energy transfer between the fluorescent components and spiropyrans on the 2D platelet surfaces. This energy transfer enables the manipulation of light-responsive fluorescence lifetimes and enhances the robustness of information storage. Consequently, the development of such state-of-the-art information carriers, capable of managing complex light patterns and storing data in 3D space, will be essential for achieving extremely high data densities.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"34 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143532458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Functional Groups-Dependent Tp-Based COF/MgIn2S4 S-Scheme Heterojunction for Photocatalytic Hydrogen Evolution","authors":"Yijun Zhou, Pengyu Dong, Jinhong Liu, Beibei Zhang, Boyuan Zhang, Xinguo Xi, Jinlong Zhang","doi":"10.1002/adfm.202500733","DOIUrl":"https://doi.org/10.1002/adfm.202500733","url":null,"abstract":"An effective technique for improving the photocatalytic activity is the functional-group-oriented approach of covalent organic frameworks (COFs). However, the creation of the functional groups-dependent COF-based S-scheme heterojunction has seldom been reported. In this study, two distinct Tp-based COFs with different functional groups using a solvothermal technique, TpPa-1 with −H and TpPa-2 with −Me (methyl), respectively, is synthesized. Moreover, functional groups-dependent Tp-based COF/MgIn<sub>2</sub>S<sub>4</sub> (MIS) S-scheme heterojunctions (i.e., TpPa-1/MIS and TpPa-2/MIS) are created to clarify the dynamics of photoinduced charges and boost the photocatalytic H<sub>2</sub> evolution. Notably, the photocatalytic H<sub>2</sub> evolution of the optimum TpPa-1/MIS-5% (13.16 mmol g<sup>−1</sup> h<sup>−1</sup>) is 4.3 times greater than that of TpPa-2/MIS-5% (3.05 mmol g<sup>−1</sup> h<sup>−1</sup>), which is attributed to the −Me functional groups in TpPa-2 that could slow down the interfacial photogenerated electron-transfer and make its surface less hydrophilic, resulting in the lower photocatalytic activity for H<sub>2</sub> evolution over TpPa-2/MIS-5%. On the contrary, the remarkable activity for H<sub>2</sub> evolution in TpPa-1/MIS-5% is associated with its fast interfacial photogenerated electron transfer from MIS to TpPa-1 due to the hydrophilic −H functional groups in TpPa-1, which induced to a stronger internal electric field motivated by the construction of S-scheme heterojunction.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"84 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143532432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Stratum Corneum-Inspired Zwitterionic Hydrogels with Intrinsic Water Retention and Anti-Freezing Properties for Intelligent Flexible Sensors","authors":"Meng Wu, Chenyu Qiao, Peng-Fei Sui, Jing-Li Luo, Zuoli Li, Yi Cao, Renjun Pei, Xuwen Peng, Hongbo Zeng","doi":"10.1002/adfm.202422755","DOIUrl":"https://doi.org/10.1002/adfm.202422755","url":null,"abstract":"Hydrogels, which mimic the properties of natural tissues, are essential for flexible electronics in human-machine interfaces (HMIs). However, traditional hydrogels suffer from dehydration, compromising stability and functionality. To address this issue, a stratum corneum-inspired, water-retaining hydrogel is developed using hygroscopic polymers and bound water. Three types of hydrophilic monomers (non-ionic, mono-ionic, and zwitterionic) are explored, with polyzwitterions, particularly N,N-dimethyl (acrylamidopropyl) ammonium propane sulfonate (DMAAPS), forming a quasi-hydrogel that retains the softness and flexibility of conventional hydrogels. Water acts as a plasticizer, enhancing polymer chain mobility and reducing stiffness. The DMAAPS hydrogel maintains 100% weight retention under specific humidity conditions and shows skin-like softness across a wide humidity range. The Young's modulus increases from 54 to 118 kPa as relative humidity decreases from 80% to 40%. The absence of free water confers intrinsic anti-freezing properties. A triple crosslinking mechanism and conductive polymers endow the hydrogel with stretchability (> 2000%), toughness, elasticity, self-healing, and stable sensing capabilities. The hydrogel functions as an excellent flexible sensor for real-time, sensitive detection of human motion and physiological signals. An intelligent handwriting recognition platform with high accuracy is also established using double-channel signal collection and machine learning algorithms, offering insights for next-generation durable, biomimetic, and smart HMIs.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"74 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143532453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Qi Wang, Jiawei Liu, Linqiang Yang, Ze Tao, Jianfeng Feng, Sheng Li, Xiaoyuan Wang, Liang Gao, Weihua Tang, Quli Fan
{"title":"High-Efficiency Organic Semiconducting Small Molecule for Deep-Tissue Phototheranostics: Single 1064 nm Laser Triggered NIR-IIb Fluorescence Imaging Guided Type-I Photodynamic/Photothermal Combination Therapy","authors":"Qi Wang, Jiawei Liu, Linqiang Yang, Ze Tao, Jianfeng Feng, Sheng Li, Xiaoyuan Wang, Liang Gao, Weihua Tang, Quli Fan","doi":"10.1002/adfm.202423165","DOIUrl":"https://doi.org/10.1002/adfm.202423165","url":null,"abstract":"Organic semiconducting small molecules that simultaneously possess NIR-IIb (1500–1700 nm) fluorescence imaging (FLI), hypoxia-tolerant photodynamic therapy (PDT) as well as photothermal therapy (PTT) abilities activated by a single NIR-II (1000-1700 nm) light can achieve high-performance deep-tissue phototheranostics, but have not gain much attention. Herein, a novel organic semiconducting small molecule (DTT) with an absorption maximum at 844 nm and an emission maximum at 944 nm in its monomer state is synthesized through delicate molecular design. Surprisingly, the emission spectrum of DTT can extend into NIR-IIb region. Subsequently, phototheranostic nanoparticles (DTT NPs) with a dramatically red-shifted maximum absorption/emission peak (1029/1128 nm) are skillfully developed based on the <i>J</i>-aggregation strategy, which show a greatly high molar absorptivity in NIR-II region. Upon 1064 nm excitation, high resolution NIR-IIb FLI can be achieved in whole-body vessels, cerebral vasculatures, and tumors of living mice treated with DTT NPs. Moreover, DTT NPs can also produce type-I reactive oxygen species and hyperthermia under 1064 nm laser irradiation for oxygen-less-dependent type-I PDT and PTT combination therapy, eventually achieving efficient antitumor effects. This work provides a facile strategy of designing high-efficiency small molecules for deep-tissue phototheranostics.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"52 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143532461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Structural Color Liquids with Sol-Gel Irreversibility for Visualized Freeze-Thaw Monitoring","authors":"Qilong Zhao, Chao Huang, Xuemin Du","doi":"10.1002/adfm.202500381","DOIUrl":"https://doi.org/10.1002/adfm.202500381","url":null,"abstract":"Protein-based bio-products such as vaccines, antibodies, enzymes, and plasma are crucial in public health and life sciences, yet their efficacy is frequently compromised by temperature fluctuations, especially repeated freeze-thaw cycles during storage and transport. While monitoring freeze-thaw damage is critical for the quality control of these bio-products, current methods lack the capability to indicate the exact number of freeze-thaw cycles. Here, structural color liquids enable visualized freeze-thaw monitoring (FT-SCLs) are introduced by harnessing their irreversible sol-gel phase transition under repeated freeze-thaw cycles, which are constructed by assembling periodically structured poly(styrene-acrylic acid) colloidal particles within a poly(vinyl alcohol) suspension. The FT-SCLs undergo irreversible sol-gel transition and therefore unidirectional alteration of their periodic structures during freeze-thaw cycling, imparting stepwise and unrecoverable color change (from red to green) to indicate the exact number of freeze-thaw cycles. Through modulating the sol-gel transition, the FT-SCLs are constructed with adjustable sensitivity across practically relevant temperature ranges (−80–−4 °C) and customizable response thresholds for diverse application scenarios. Leveraging their unique capabilities of freeze-thaw monitoring via non-tampered optical signals, such FT-SCLs exhibit broad applicability in vaccine storage, whole blood preservation, and enzyme stability monitoring, which can further be extended for cell cryopreservation and the food industry.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"84 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143532462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sepideh Norouzi, Yazael R. Morales-Flores, Tadej Emersic, Jeremy Money, Otilio E. Rodriguez-Lopez, Andrew Casale, Juan J. de Pablo, Jose A. Martinez-Gonzalez, Monirosadat Sadati
{"title":"3D Nano-architected Polymer Shell Enables Reconfigurable Stabilized Blue Phase Soft Crystals","authors":"Sepideh Norouzi, Yazael R. Morales-Flores, Tadej Emersic, Jeremy Money, Otilio E. Rodriguez-Lopez, Andrew Casale, Juan J. de Pablo, Jose A. Martinez-Gonzalez, Monirosadat Sadati","doi":"10.1002/adfm.202424655","DOIUrl":"https://doi.org/10.1002/adfm.202424655","url":null,"abstract":"Blue phases (BPs), formed through the self-assembly of chiral liquid crystal molecules into 3D nanolattices with cubic symmetries, exhibit dynamic photonic bandgaps in the visible spectrum, offering transformative opportunities for advanced optical circuits, sensing and communication technologies. However, their thermal stability is restricted to a narrow temperature range (0.5–1.0 K), limiting practical applications. Polymer stabilization of bulk BPs has extended thermal stability but often compromises the dynamic behavior essential for fast-response functionalities. Here, experimental and computational approaches are integrated to investigate the effect of curvature and interfacial interactions on BP polymer stabilization. It is demonstrated that photo-polymerization of reactive monomers within BP microdroplets produces polymer shells, a few hundred nanometers thick, featuring BPs disclination network nano-architecture. This nano-architected shell provides surface topology and anchoring conditions to direct BP nucleation and growth, with the degree of curvature dictating the stabilized BP lattice structure within microdroplets. Remarkably, while enhancing thermal stability across a broad temperature range, this polymer shell enables reconfigurable crystal-to-crystal transformations in stabilized BP droplets. This work introduces a novel approach to tailoring BP properties by leveraging curvature, confinement, and interfacial interactions to create thermally stable, reconfigurable photonic crystals, paving the way for adaptive sensors and next-generation fast-response optical devices.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"66 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143532472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}