Advanced Materials最新文献_第9页

Critical Roles of Ultrafast Energy Funnelling and Ultrafast Singlet-Triplet Annihilation in Quasi-2D Perovskite Optical Gain Mechanisms

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-03-25 DOI: 10.1002/adma.202419674

Isabella Wagner, Wouter T.M. Van Gompel, Robin Erkens, Bart Ruttens, Jan D'Haen, Laurence Lutsen, Dirk Vanderzande, Chern Chuang, Sheng Hsiung Chang, Paul A. Hume, Michael B. Price, Pieter Geiregat, Justin M. Hodgkiss, Kai Chen

{"title":"Critical Roles of Ultrafast Energy Funnelling and Ultrafast Singlet-Triplet Annihilation in Quasi-2D Perovskite Optical Gain Mechanisms","authors":"Isabella Wagner, Wouter T.M. Van Gompel, Robin Erkens, Bart Ruttens, Jan D'Haen, Laurence Lutsen, Dirk Vanderzande, Chern Chuang, Sheng Hsiung Chang, Paul A. Hume, Michael B. Price, Pieter Geiregat, Justin M. Hodgkiss, Kai Chen","doi":"10.1002/adma.202419674","DOIUrl":"https://doi.org/10.1002/adma.202419674","url":null,"abstract":"Quasi-2D (Q2D) perovskite possess considerable potential for light emission and amplification technologies. Recently, mixed films containing Q2D perovskite grains with varying layer thicknesses have shown great promise as carrier concentrators, effectively mitigating trap-mediated recombination. In this strategy, photo-excitations are rapidly funnelled down an energy gradient to the thickest grains, leading to amplified spontaneous emission (ASE). However, the quantum-confined Q2D slabs also stabilize the formation of unwanted triplet excitons, resulting in parasitic quenching of emissive singlet states. Here, a novel ultrafast photoluminescence spectroscopy is used to study photoexcitation dynamics in mixed-layer Q2D perovskites. By analysing spectra with high temporal and energy resolution, this is found that sub-picosecond energy transfer to ASE sites is accompanied by excitation losses due to triplet formation on grains with small and intermediate thicknesses. Further accumulation of triplets creates a bottleneck in the energy cascade, effectively quenching incoming singlet excitons. This ultrafast annihilation within 200 femtosecond outpaces energy transfer to ASE sites, preventing the build-up of population inversion. This study highlights the significance of investigating photoexcitation dynamics on ultrafast timescales, encompassing lasing dynamics, energy transfer, and singlet-triplet annihilation, to gain crucial insights into the photophysics of the optical gain process in Q2D perovskites.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"24 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695117","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}

引用次数: 0

Strategic Development of Memristors for Neuromorphic Systems: Low-Power and Reconfigurable Operation

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-03-25 DOI: 10.1002/adma.202413916

Jang Woo Lee, Jiye Han, Boseok Kang, Young Joon Hong, Sungjoo Lee, Il Jeon

{"title":"Strategic Development of Memristors for Neuromorphic Systems: Low-Power and Reconfigurable Operation","authors":"Jang Woo Lee, Jiye Han, Boseok Kang, Young Joon Hong, Sungjoo Lee, Il Jeon","doi":"10.1002/adma.202413916","DOIUrl":"https://doi.org/10.1002/adma.202413916","url":null,"abstract":"The ongoing global energy crisis has heightened the demand for low-power electronic devices, driving interest in neuromorphic computing inspired by the parallel processing of human brains and energy efficiency. Reconfigurable memristors, which integrate both volatile and non-volatile behaviors within a single unit, offer a powerful solution for in-memory computing, addressing the von Neumann bottleneck that limits conventional computing architectures. These versatile devices combine the high density, low power consumption, and adaptability of memristors, positioning them as superior alternatives to traditional complementary metal-oxide-semiconductor (CMOS) technology for emulating brain-like functions. Despite their potential, studies on reconfigurable memristors remain sparse and are often limited to specific materials such as Mott insulators without fully addressing their unique reconfigurability. This review specifically focuses on reconfigurable memristors, examining their dual-mode operation, diverse physical mechanisms, structural designs, material properties, switching behaviors, and neuromorphic applications. It highlights the recent advancements in low-power-consumption solutions within memristor-based neural networks and critically evaluates the challenges in deploying reconfigurable memristors as standalone devices or within artificial neural systems. The review provides in-depth technical insights and quantitative benchmarks to guide the future development and implementation of reconfigurable memristors in low-power neuromorphic computing.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"33 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695123","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}

引用次数: 0

Hierarchically Structured Porous Polyamide-Imide Membrane for Switchable Emulsion Separation 用于可切换式乳液分离的分层结构多孔聚酰胺-酰亚胺膜

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-03-25 DOI: 10.1002/adma.202501092

Pengfei Zhang, Bowen Li, Ralph Rolly Gonzales, Kecheng Guan, Zhaohuan Mai, Zhan Li, Mengyang Hu, Liheng Dai, Ping Xu, Keizo Nakagawa, Tomohisa Yoshioka, Hideto Matsuyama

{"title":"Hierarchically Structured Porous Polyamide-Imide Membrane for Switchable Emulsion Separation","authors":"Pengfei Zhang, Bowen Li, Ralph Rolly Gonzales, Kecheng Guan, Zhaohuan Mai, Zhan Li, Mengyang Hu, Liheng Dai, Ping Xu, Keizo Nakagawa, Tomohisa Yoshioka, Hideto Matsuyama","doi":"10.1002/adma.202501092","DOIUrl":"https://doi.org/10.1002/adma.202501092","url":null,"abstract":"The development of advanced membranes with switchable superwettability has attracted considerable attention for the efficient treatment of oily wastewater. However, challenges persist in designing and fabricating such membranes through straightforward methods. In this study, a novel strategy is presented to design switchable superwettable membranes based on micro/nano-structured porous surfaces and surface chemical composition reorganization. A commercial amphiphilic polymer, polyamide-imide (Torlon), is fabricated into a porous symmetric membrane with a hierarchical surface structure using a one-step non-solvent-induced phase separation method. By leveraging the surface reorganization capability of amphiphilic polymers and the hierarchically porous structure, the resulting membranes demonstrate exceptional superamphiphilicity in air, underwater superoleophobicity, and underoil superhydrophobicity. These properties enable ultrahigh permeance and separation efficiency for oil-in-water, water-in-oil, and crude oil/water emulsions through a gravity-driven process, eliminating the need for external energy. Furthermore, the membranes exhibit excellent antifouling and self-cleaning performance, maintaining stable operation over multiple cycles. This work provides an innovative and scalable approach to next-generation switchable superwettable membranes with broad potential applications in oily wastewater treatment and beyond.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"8 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695118","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}

引用次数: 0

2D Rhodium-Isocyanide Frameworks 二维铑-异氰酸框架

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-03-25 DOI: 10.1002/adma.202502192

Senhe Huang, Pu Yan, Zhiya Han, Hongyu Wu, Youcheng Wang, Jichao Zhang, Lei Yuan, Shuai Fu, Guanzhao Wen, Jinhui Zhu, Mischa Bonn, Hai I. Wang, Kecheng Cao, Xiaodong Zhuang

{"title":"2D Rhodium-Isocyanide Frameworks","authors":"Senhe Huang, Pu Yan, Zhiya Han, Hongyu Wu, Youcheng Wang, Jichao Zhang, Lei Yuan, Shuai Fu, Guanzhao Wen, Jinhui Zhu, Mischa Bonn, Hai I. Wang, Kecheng Cao, Xiaodong Zhuang","doi":"10.1002/adma.202502192","DOIUrl":"https://doi.org/10.1002/adma.202502192","url":null,"abstract":"2D metal-organic frameworks (2D MOFs) are emerging organic van der Waals materials with great potential in various applications owing to their structural diversity, and tunable optoelectronic properties. So far, most reported 2D MOFs rely on metal-heteroatom coordination (e.g., metal–nitrogen, metal–oxygen, and metal–sulfur); synthesis of metal-carbon coordination based 2D MOFs remains a formidable challenge. This study reports the rhodium–carbon (Rh–C) coordination-based 2D MOFs, using isocyanide as the ligand and Rh(I) as metal node. The synthesized MOFs show excellent crystallinity with quasi-square lattice networks. These MOFs show ultra-narrow bandgaps (0.1–0.28 eV) resulting from the interaction between Rh(I) and isocyano groups. Terahertz spectroscopy demonstrates exceptional short-range charge mobilities up to 560 ± 46 cm2 V−1 s−1 in the as-synthesized MOFs. Moreover, these MOFs are used as electrocatalysts for nitrogen reduction reaction and show an excellent NH3 yield rate of 56.0 ± 1.5 µg h−1 mgcat−1 and a record Faradaic efficiency of 87.1 ± 1.8%. In situ experiments reveal dual pathways involving Rh(I) during the catalytic process. This work represents a pioneering step toward 2D MOFs based on metal–carbon coordination and paves the way for novel reticular materials with ultra-high carrier mobility and for versatile optoelectronic devices.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"183 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695120","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}

引用次数: 0

A Multifunctional Binder for Current-Collector-Free Zn Powder Anodes

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-03-25 DOI: 10.1002/adma.202419702

Yanbo Wang, Xintao Ma, Xinru Yang, Rong Zhang, Hu Hong, Shixun Wang, Qing Li, Ze Chen, Zhaodong Huang, Haiming Lv, Chunyi Zhi

{"title":"A Multifunctional Binder for Current-Collector-Free Zn Powder Anodes","authors":"Yanbo Wang, Xintao Ma, Xinru Yang, Rong Zhang, Hu Hong, Shixun Wang, Qing Li, Ze Chen, Zhaodong Huang, Haiming Lv, Chunyi Zhi","doi":"10.1002/adma.202419702","DOIUrl":"https://doi.org/10.1002/adma.202419702","url":null,"abstract":"Compared with commonly used Zn foil anodes, Zn powder (ZP) anodes offer superior versatility and processability. However, in aqueous electrolytes, dendrite growth and side reactions, such as corrosion and hydrogen evolution, become more severe in ZP anodes than those in Zn foil anodes because of the rough surfaces and high surface areas of ZP, leading to poor reversibility and limitations in high-loading mass cathodes. In this study, a diisocyanate-polytetrahydrofuran-dihydrazide polymer (DDP) binder is developed, inspired by protein structures. The strong Zn2+ adsorption capability of the binder effectively regulates Zn2+ flux, while its unique hydrogen-bond arrays facilitate the formation of a free-standing ZP anode and inhibit side reactions. The binder exhibits superior mechanical performance, providing ZP electrodes with excellent resistance to various mechanical stresses, including tensile, nanoindentation, scratch, and dynamic bending tests. ZP symmetric cells achieve stable cycling at capacities of 2 and 5 mAh cm−2. In addition, DDP functions as an iodine cathode, effectively mitigating the polyiodide shuttle effect. The fabricated ZP/DDP||I2/DDP full cells demonstrate an excellent rate capability and cycling stability, even under a high-loading conditions. This study presents a novel approach for preparing stable ZP anodes and iodine cathodes, offering a promising strategy for large-scale applications.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"71 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695124","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}

引用次数: 0

Bottom-Up Selective Growth of Ultralong Organic Phosphorescence Nanocrystals with Optimized Crystal Forms for In Vivo Optical Imaging

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-03-24 DOI: 10.1002/adma.202418795

Junru Chen, Zhenni Wei, Yi Shan, Siqin Chen, Zhu Wu, Shitai Liu, Jingjing Zhang, Xiaoyuan Chen, Bin Liu

{"title":"Bottom-Up Selective Growth of Ultralong Organic Phosphorescence Nanocrystals with Optimized Crystal Forms for In Vivo Optical Imaging","authors":"Junru Chen, Zhenni Wei, Yi Shan, Siqin Chen, Zhu Wu, Shitai Liu, Jingjing Zhang, Xiaoyuan Chen, Bin Liu","doi":"10.1002/adma.202418795","DOIUrl":"https://doi.org/10.1002/adma.202418795","url":null,"abstract":"Ultralong organic phosphorescence (UOP) materials are valuable for biological imaging to avoid interference from fluorescence background signals because of their delayed emission property. Obtaining nanocrystals with high phosphorescence quantum yield is a critical factor to achieve high-quality UOP imaging. Herein, a pair of host–guest UOP doped system with variable crystal forms for the host is constructed. By exploring the relationship between the crystal form of the host and the UOP of the doped system, the importance of host crystal form is revealed to achieve high quantum yield UOP in doped systems. Furthermore, to overcome the low crystallinity and numerous defects faced by traditional bottom-up strategies for nanocrystal preparation, a strategy is proposed for the selective preparation of nanocrystals with the target crystal form. Through controlling the evaporation rate of the solvent, the ordered growth of crystals can be effectively regulated to obtain nanocrystals with different crystal forms for bioimaging applications.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"28 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695125","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}

引用次数: 0

Suspension Electrolytes with Catalytically Self‐Expediating Desolvation Kinetics for Low‐Temperature Zinc Metal Batteries

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-03-24 DOI: 10.1002/adma.202501079

Jing Dong, Xiaomin Cheng, Haifeng Yang, Huihua Li, Haitao Liu, Lujie Jia, Yongzheng Zhang, Qinghua Guan, Jiqiang Jia, Fanglin Wu, Jing Zhang, Meinan Liu, Hongzhen Lin, Jian Wang

{"title":"Suspension Electrolytes with Catalytically Self‐Expediating Desolvation Kinetics for Low‐Temperature Zinc Metal Batteries","authors":"Jing Dong, Xiaomin Cheng, Haifeng Yang, Huihua Li, Haitao Liu, Lujie Jia, Yongzheng Zhang, Qinghua Guan, Jiqiang Jia, Fanglin Wu, Jing Zhang, Meinan Liu, Hongzhen Lin, Jian Wang","doi":"10.1002/adma.202501079","DOIUrl":"https://doi.org/10.1002/adma.202501079","url":null,"abstract":"The conventional electrolyte for rechargeable aqueous zinc metal batteries (AZMBs) breeds many problems such as Zn dendrite growth and side reaction of hydrogen evolution reaction, which are fundamentally attributed to the uneven ion flux owing to the high barriers of desolvation and diffusion of Zn[(H2O)6]2+ clusters. Herein, to modulate the [Zn(H2O)6]2+ solvation structure, the suspension electrolyte engineering employed with electron‐delocalized catalytic nanoparticles is initially proposed to expedite desolvation kinetics. As a proof, the electron‐density‐adjustable CeO2‐x is introduced into the commercial electrolyte and preferentially adsorbed on the Zn surface, regulating the Zn[(H2O)6]2+ structure. Meanwhile, the defect‐rich CeO2‐x redistributes the localized space electric field to uniformize ion flux kinetics and inhibits dendrite growth, as confirmed by a series of theoretical simulations, spectroscopical and experimental measurements. Encouragingly, the CeO2‐x decorated suspension electrolyte enables a long stability over 1200 cycles at 5 mA cm−2 and an extended lifespan exceeding 6500 h with lower overpotentials of 34 mV under 0 °C. Matched with polyaniline cathodes, the full cells with suspension electrolyte exhibit a capacity‐retention of 96.75% at 1 A g−1 under −20 °C as well as a long lifespan of up to 400 cycles in a large‐areal pouch cell, showcasing promising potentials of suspension electrolyte for practical AZMBs.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"18 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677830","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}

引用次数: 0

Molecular Stitching in Polysaccharide Precursor for Fabricating Hard Carbon with Ultra-High Plateau Capacity of Sodium Storage

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-03-24 DOI: 10.1002/adma.202420251

Zhenzhuang Wen, Ruiguang Zhao, Tongtong Tian, Tao Zhang, Xin Wang, Xinyi Yang, Wanqing Song, Yanan Chen, Jia Ding, Wenbin Hu

{"title":"Molecular Stitching in Polysaccharide Precursor for Fabricating Hard Carbon with Ultra-High Plateau Capacity of Sodium Storage","authors":"Zhenzhuang Wen, Ruiguang Zhao, Tongtong Tian, Tao Zhang, Xin Wang, Xinyi Yang, Wanqing Song, Yanan Chen, Jia Ding, Wenbin Hu","doi":"10.1002/adma.202420251","DOIUrl":"https://doi.org/10.1002/adma.202420251","url":null,"abstract":"High energy density of sodium-ion batteries (SIBs) requires high low-voltage capacity and initial Coulombic efficiency for hard carbon. However, simultaneously achieving both characteristics is a substantial challenge. Herein, a unique molecular stitching strategy is proposed to edit the polymeric structure of common starch for synthesizing cost-effective hard carbon (STHC-MS). A mild air-heating treatment toward starch is employed to trigger the esterification reaction between carboxyl and hydroxy groups, which can effectively connect the branched polysaccharide chains thereby constructing a highly cross-linked polymeric network. In contrast with the pristine branched-chain starch, the cross-linking structured precursor evolves into highly twisted graphitic lattices creating a large population of closed ultramicro-pores (<0.3 nm) enabling the storage of massive sodium clusters. Resultantly, STHC-MS delivers a reversible capacity of 348 mAh g−1 with a remarkable low-voltage (below 0.1 V) capacity of 294 mAh g−1, which becomes more attractive by combining the high initial Coulombic efficiency of 93.3%. Moreover, STHC-MS exhibits outstanding stability of 0.008% decay per cycle over 4800 cycles at 1 A g−1. STHC-MS||Na3V2(PO3)4 full cells achieve an energy density of 266 Wh kg−1, largely surpassing the commercial hard carbon-based counterpart. This work opens the avenue of molecular-level modulation in organic precursors for developing high-performance hard carbon in SIBs.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"57 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143678017","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}

引用次数: 0

Non‐Invasive Diagnosis of Early Colorectal Cancerization via Amplified Sensing of MicroRNA‐21 in NIR‐II Window

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-03-24 DOI: 10.1002/adma.202501378

Fuheng Zhai, Baofeng Yun, Jiang Ming, Tianyu Yu, Benhao Li, Xiao Liu, Xusheng Wang, Zi‐Han Chen, Changfeng Song, Mengyao Zhao, Wenlin Li, Zhebin Liu, Aibin Liang, Jiyu Li, Fan Zhang

{"title":"Non‐Invasive Diagnosis of Early Colorectal Cancerization via Amplified Sensing of MicroRNA‐21 in NIR‐II Window","authors":"Fuheng Zhai, Baofeng Yun, Jiang Ming, Tianyu Yu, Benhao Li, Xiao Liu, Xusheng Wang, Zi‐Han Chen, Changfeng Song, Mengyao Zhao, Wenlin Li, Zhebin Liu, Aibin Liang, Jiyu Li, Fan Zhang","doi":"10.1002/adma.202501378","DOIUrl":"https://doi.org/10.1002/adma.202501378","url":null,"abstract":"Accurate, sensitive, and in situ visualization of aberrant expression level of low‐abundant biomolecules is crucial for early colorectal cancer (CRC) detection ahead of tumor morphology change. However, the clinical used colonoscopy and biopsy methods are invasive and lack of sensitivity at early‐stage of cancerization. Here, an amplified sensing strategy is developed in the second near‐infrared long‐wavelength subregion (NIR‐II‐L, 1500–1900 nm) by integrating DNAzyme‐triggered signal amplification technology and lanthanide‐dye hybrid system. In the early‐stage of CRC, the overexpressed biomarker microRNA‐21 initiates the NIR‐II‐L luminescence ratiometric signal amplification of the CRCsensor. The high sensitivity with a limit of detection (LOD) of 1.26 pm allows non‐invasive visualization of orthotopic colorectal cancerization via rectal administration, which achieves early and accurate in situ diagnosis at 2 weeks ahead of the in vitro histological results. This innovative approach offers a promising tool for early diagnosis and long‐term monitoring of carcinogenesis progression, with potential applications in other cancer‐related biomarkers.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"183 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677682","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}

引用次数: 0

Resolving Dynamic Behavior of Electrocatalysts via Advances of Operando X-Ray Absorption Spectroscopies: Potential Artifacts and Practical Guidelines

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-03-24 DOI: 10.1002/adma.202418797

Jiali Wang, Meng-Ting Liu, Chia-Shuo Hsu, You-Chiuan Chu, Yen-Fa Liao, Chih-Wen Pao, Ting-Shan Chan, Wei-Tsung Chuang, Jeng-Lung Chen, Yu-Cheng Shao, Hirofumi Ishii, Nozomu Hiraoka, Ching-Yu Chiang, Hao Ming Chen

{"title":"Resolving Dynamic Behavior of Electrocatalysts via Advances of Operando X-Ray Absorption Spectroscopies: Potential Artifacts and Practical Guidelines","authors":"Jiali Wang, Meng-Ting Liu, Chia-Shuo Hsu, You-Chiuan Chu, Yen-Fa Liao, Chih-Wen Pao, Ting-Shan Chan, Wei-Tsung Chuang, Jeng-Lung Chen, Yu-Cheng Shao, Hirofumi Ishii, Nozomu Hiraoka, Ching-Yu Chiang, Hao Ming Chen","doi":"10.1002/adma.202418797","DOIUrl":"https://doi.org/10.1002/adma.202418797","url":null,"abstract":"Although numerous techniques are developed to enable real-time understanding of dynamic interactions at the solid–liquid interface during electrochemical reactions, further progress in the development of these methods over the last several decades has faced challenges. With the rapid development of high-brilliance synchrotron sources, operando X-ray spectroscopies have become increasingly popular for revealing interfacial features and catalytic mechanisms in electrocatalysis. Nevertheless, the resulting spectra are highly sensitive to factors such as X-ray radiation, reaction environment, and acquisition procedures, all of which may potentially introduce artifacts that are often overlooked, leading to misinterpretations of electrocatalytic behaviors. In this perspective, several emerging hard X-ray spectroscopies used in electrocatalysis research are reviewed, highlighting their electronic transition processes, detection modes, and functional complementarity. Significantly, based on a case study of operando X-ray absorption spectroscopy at various beamlines, potential artifacts generated by X-ray irradiation are systematically investigated through photon-flux density-, dose-, and time-dependent studies of typical copper electrocatalysts. Accordingly, a practical protocol for conducting reliable X-ray spectroscopic measurements in operando electrocatalytic studies to minimize potential artifacts that can affect the resulting X-ray spectra, thereby ensuring accurate interpretation and a deeper understanding of interfacial interactions and electrocatalytic mechanisms, is established.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"26 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143678015","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}

引用次数: 0