ACS Materials Letters最新文献

Bacterial Swarming-Guided Biomineralization Enables Pattern Formation in Engineered Living Materials 细菌群引导的生物矿化使工程生物材料的模式形成

IF 8.6 1区化学

ACS Materials Letters Pub Date : 2026-10-05 Epub Date: 2026-09-24 DOI: 10.1021/acsmaterialslett.6c00557

Koppisetty Viswa Chaithanya, Uttam Kumar, Karthik Pushpavanam

{"title":"Bacterial Swarming-Guided Biomineralization Enables Pattern Formation in Engineered Living Materials","authors":"Koppisetty Viswa Chaithanya, Uttam Kumar, Karthik Pushpavanam","doi":"10.1021/acsmaterialslett.6c00557","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.6c00557","url":null,"abstract":"Engineered living materials (ELMs) harness the adaptive capabilities of biological systems to create diverse functional materials. While most ELM strategies rely on static microbial assemblies, the role of bacterial motility in structuring living materials remains largely unexplored. Here, we demonstrate that swarming motility in Escherichia coli MG1655 can spatiotemporally organize calcium phosphate. Scanning electron microscopy and X-ray diffraction patterns differentiate regularly spaced concentric hydroxyapatite deposition of bacteria from abiotic precipitation. We further show that bacterial activity promotes local alkalinization, contributing to calcium phosphate mineralization, and that phosphate chemistry, along with calcium concentration, modulates both swarming and mineral patterning. A continuum model captures the spatiotemporal coupling between swarm expansion and mineral deposition, showing that recurrent front arrest and restart can generate concentric rings. Together, we establish bacterial swarming as a dynamic mechanism for spatially organizing biomineralization and provide a framework for programmable pattern formation in ELMs.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"8 10","pages":"2918–2924"},"PeriodicalIF":8.6,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149093665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Atomically Dispersed Metal-Nitrogen-Carbon Catalysts for Oxygen Reduction Reaction: From Heteroatom Coordination Engineering to Stability Enhancement Strategies 氧还原反应的原子分散金属-氮-碳催化剂：从杂原子配位工程到稳定性增强策略

IF 8.6 1区化学

ACS Materials Letters Pub Date : 2026-10-05 Epub Date: 2026-09-08 DOI: 10.1021/acsmaterialslett.6c00815

Jinxiang Chou, Dan Wang, Yankun Wei, Yukai Chen, Xiaojiao Du, Wenchang Wang, Naotoshi Mitsuzaki, Zhidong Chen

{"title":"Atomically Dispersed Metal-Nitrogen-Carbon Catalysts for Oxygen Reduction Reaction: From Heteroatom Coordination Engineering to Stability Enhancement Strategies","authors":"Jinxiang Chou, Dan Wang, Yankun Wei, Yukai Chen, Xiaojiao Du, Wenchang Wang, Naotoshi Mitsuzaki, Zhidong Chen","doi":"10.1021/acsmaterialslett.6c00815","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.6c00815","url":null,"abstract":"Atomically dispersed metal−nitrogen−carbon (M−N−C) catalysts have emerged as promising alternatives to platinum-based catalysts for the oxygen reduction reaction (ORR). However, comprehensive and systematic reviews focusing on activity-enhancement engineering and stability-improvement strategies remain scarce, leading to an ambiguous understanding of the structure-activity-stability relationship. Therefore, this review systematically summarizes heteroatom doping engineering, and stability enhancement strategies, aiming to offering new insights to break the activity-stability trade-off. Firstly, the regulation mechanisms of heteroatom doping strategies on the electronic structure of active centers and ORR performance are discussed in depth. Specifically, this review encompasses the electronic modulation of the central metal via first coordination shell engineering, the structural optimization of the carbon support through second-shell doping, and the synergistic catalytic effects derived from multiheteroatom codoping. Then, the deactivation mechanisms of M–N–C catalysts are summarized, along with corresponding strategies for stability enhancement. Finally, future research directions for atomically dispersed M–N–C catalysts are proposed.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"8 10","pages":"2859–2873"},"PeriodicalIF":8.6,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149093588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multimodal X-ray Detection Enabled by Ion–Electronic Dynamics in Hybrid Perovskites 混合钙钛矿中离子-电子动力学实现的多模态x射线探测

IF 8.6 1区化学

ACS Materials Letters Pub Date : 2026-10-05 Epub Date: 2026-08-29 DOI: 10.1021/acsmaterialslett.6c00799

Yalu Li, Can Zou, Da Liu, Zhanpeng Wei, Xie Zhang, Hua Gui Yang, Yu Hou, Shuang Yang

{"title":"Multimodal X-ray Detection Enabled by Ion–Electronic Dynamics in Hybrid Perovskites","authors":"Yalu Li, Can Zou, Da Liu, Zhanpeng Wei, Xie Zhang, Hua Gui Yang, Yu Hou, Shuang Yang","doi":"10.1021/acsmaterialslett.6c00799","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.6c00799","url":null,"abstract":"X-ray dosimetry and imaging have been utilized in a wide range of applications. However, the complex components of detection, memory, and computing units of commercial detection systems inevitably make it structurally complex and energy consuming. Here, a multimodal two-terminal perovskite device is demonstrated that can measure real-time dose rate and record the accumulated dose of X-ray pulse signals concurrently by decoupling volatile electronic and non-volatile ionic variables of the conductance (G). The device delivers an X-ray sensitivity of 1159 μC Gy–1 cm–2, a limit of detection (LoD) of 27.9 nGy s–1, a limit of memory (LoM) of 0.32 μGy s–1, as well as multiple non-volatile storage states of around 40 nS. As a proof-of-concept, a perovskite crossbar array integrates the functions of sensitive X-ray detection, multi-state data memorization, as well as image pre-processing, offering a promising platform toward intelligent, robust, and lightweight radiation imaging systems.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"8 10","pages":"2980–2988"},"PeriodicalIF":8.6,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149124854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Creating Mesopores in Two-Dimensional Conductive Metal–Organic Frameworks for Enhanced Electrochemical Capacitive Performance 在二维导电金属-有机框架中创建介孔以增强电化学电容性能

IF 8.6 1区化学

ACS Materials Letters Pub Date : 2026-10-05 Epub Date: 2026-09-12 DOI: 10.1021/acsmaterialslett.6c00710

Chou-Hung Hsueh, Chi-Lun Chuang, Cheng-Yan Hsieh, Yin-Chu Tai, Hsin-Hsiang Mao, Chung-Wei Kung

{"title":"Creating Mesopores in Two-Dimensional Conductive Metal–Organic Frameworks for Enhanced Electrochemical Capacitive Performance","authors":"Chou-Hung Hsueh, Chi-Lun Chuang, Cheng-Yan Hsieh, Yin-Chu Tai, Hsin-Hsiang Mao, Chung-Wei Kung","doi":"10.1021/acsmaterialslett.6c00710","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.6c00710","url":null,"abstract":"Two-dimensional conductive metal–organic frameworks (2D c-MOFs), such as Ni3(2,3,6,7,10,11-hexaiminotriphenylene)2 (Ni3(HITP)2), are promising active materials for electrochemical energy storage due to their intrinsic conductivity and well-defined porous structures. However, their predominantly microporous nature limits ionic transport, leading to poor performance at fast charging rates. Herein, we report a soft-template strategy using a symmetric triblock copolymer to introduce mesoporosity into Ni3(HITP)2. The resulting materials exhibit preserved crystallinity and hierarchical pore structures, with mesopores of 3–5 nm confirmed by both nitrogen sorption and transmission electron microscopy. This work demonstrates the creation of mesopores in 2D c-MOFs via a soft-template approach. The mesopores of Ni3(HITP)2 facilitate the mass transfer of ions and thus enhance the rate capability for the application in supercapacitors, highlighting soft-template engineering as an effective strategy for tuning pore structure and electrochemical performance.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"8 10","pages":"2957–2964"},"PeriodicalIF":8.6,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149093662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Charge-Encoded Hydrogels Program Sign-Reversible Belousov−Zhabotinsky Wave Transport 电荷编码的水凝胶程序符号可逆Belousov - Zhabotinsky波传输

IF 8.6 1区化学

ACS Materials Letters Pub Date : 2026-10-05 Epub Date: 2026-09-21 DOI: 10.1021/acsmaterialslett.6c00698

Won Seok Lee, Tomoko Ikeda-Fukazawa

引用次数: 0

Dopant-Level Cobalt as an Electronic Promoter Stabilizes NiOOH for the Efficient Electrochemical Oxidation of 5-Hydroxymethylfurfural (HMF) to 2,5-Furandicarboxylic Acid (FDCA) 掺杂水平钴作为电子促进剂稳定NiOOH，使5-羟甲基糠醛（HMF）高效电化学氧化为2,5-呋喃二羧酸（FDCA）

IF 8.6 1区化学

ACS Materials Letters Pub Date : 2026-10-05 Epub Date: 2026-09-13 DOI: 10.1021/acsmaterialslett.6c00679

Mi-Young Lee, Jongin Woo, Sanjana Srinivas, Sang Yun, Nick Brady, Wenyu Sun, Junho Lee, Byeong Cheul Moon, Giovanna Bucci, Christopher Hahn, Dong Ki Lee

{"title":"Dopant-Level Cobalt as an Electronic Promoter Stabilizes NiOOH for the Efficient Electrochemical Oxidation of 5-Hydroxymethylfurfural (HMF) to 2,5-Furandicarboxylic Acid (FDCA)","authors":"Mi-Young Lee, Jongin Woo, Sanjana Srinivas, Sang Yun, Nick Brady, Wenyu Sun, Junho Lee, Byeong Cheul Moon, Giovanna Bucci, Christopher Hahn, Dong Ki Lee","doi":"10.1021/acsmaterialslett.6c00679","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.6c00679","url":null,"abstract":"The electrochemical oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) is a promising route to biobased polymers using Ni-based hydroxide anodes. Although Co incorporation enhances performance, its mechanistic role in HMF oxidation remains unresolved. Here, NiCo hydroxides with precisely controlled Co contents were synthesized and evaluated. Trace Co incorporation (Ni99Co1) markedly enhanced FDCA production, achieving a production rate of up to 1.27 mM cm−2 h−1, a 48% increase over pristine Ni (0.86 mM cm−2 h−1), while maintaining the highest Faradaic efficiency (91%). Higher Co loadings instead favored the competing oxygen evolution reaction (OER), reflecting a mechanistic trade-off. Operando spectroscopies and theoretical calculations reveal that Co acts not as a catalytic site but as an electronic promoter: it lowers the Ni2+/Ni3+ transition barrier, stabilizes active NiOOH, and facilitates FDCA desorption. Excessive Co destabilizes NiOOH and accelerates OER. These findings establish dopant-level Co as a redox-modulating promoter for selective biomass electro-oxidation.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"8 10","pages":"2934–2941"},"PeriodicalIF":8.6,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149124865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sorafenib-Loaded Copper Phosphate Nanoparticles with Redox Balance Disruption and Autophagy Blockage Capacities for Enhanced Tumor Ferroptosis and Cuproptosis 负载索拉非尼的磷酸铜纳米颗粒具有氧化还原平衡破坏和自噬阻断能力，可增强肿瘤铁沉和铜沉

IF 8.6 1区化学

ACS Materials Letters Pub Date : 2026-10-05 Epub Date: 2026-09-15 DOI: 10.1021/acsmaterialslett.6c00853

Yi Ouyang, Yaqin Hu, Chunmei Chen, Sheng Zhao, Mengyuan Wu, Hao Pan, Wei Zhang, Hui Liu

{"title":"Sorafenib-Loaded Copper Phosphate Nanoparticles with Redox Balance Disruption and Autophagy Blockage Capacities for Enhanced Tumor Ferroptosis and Cuproptosis","authors":"Yi Ouyang, Yaqin Hu, Chunmei Chen, Sheng Zhao, Mengyuan Wu, Hao Pan, Wei Zhang, Hui Liu","doi":"10.1021/acsmaterialslett.6c00853","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.6c00853","url":null,"abstract":"Utilizing the inherent properties of copper could realize tumor therapy through ferroptosis and cuproptosis pathways. However, the therapeutic efficiency is always compromised by the intracellular antioxidant ability and cytoprotective autophagy process. Herein, enhanced tumor ferroptosis/cuproptosis was realized using copper phosphate-sorafenib-polyacrylic acid (CuPi-SRF-PAA) nanoparticles (NPs). They could degrade to release Cu2+, SRF, and PO43– under acidic conditions. The released Cu2+ not only promotes lipid hydroperoxides generation through a Fenton-like reaction to cause ferroptosis but also damages mitochondrial dihydrolipoamide S-acetyltransferase to induce cuproptosis. Meanwhile, SRF inhibits glutathione generation through deactivating system xc– to realize redox balance disruption, and PO43– causes lysosomal deacidification to achieve autophagy blockage, enhancing the efficacy of ferroptosis and cuproptosis. In vitro and in vivo data demonstrated that these CuPi-SRF-PAA NPs could achieve effective tumor suppression with high biocompatibility. This work highlights the key roles of combining redox balance disruption and autophagy blockage in tumor therapy.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"8 10","pages":"2989–2997"},"PeriodicalIF":8.6,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149093627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stabilization of the Highly Conductive Sodium Solid Electrolyte ht-NaCB9H10 Using High-Energy Ball Milling 高能球磨稳定高导电性钠固体电解质ht-NaCB9H10

IF 8.6 1区化学

ACS Materials Letters Pub Date : 2026-10-05 Epub Date: 2026-09-02 DOI: 10.1021/acsmaterialslett.6c00464

Therese S. S. Faurskov, Jakob B. Grinderslev, Lasse R. Kristensen, Torben R. Jensen

引用次数: 0

Rhizosphere Microenvironment-Induced Transformation of Lithium Cobalt Oxide Triggers Singlet Oxygen and Plant Injury 根际微环境诱导的钴酸锂转化触发单线态氧和植物损伤

IF 8.6 1区化学

ACS Materials Letters Pub Date : 2026-10-05 Epub Date: 2026-09-23 DOI: 10.1021/acsmaterialslett.6c00855

Shengmei Kang, Jiawei Chen, Jihao Ma, Xiaohan Zhang, Juewen Liu, Feng Wang

{"title":"Rhizosphere Microenvironment-Induced Transformation of Lithium Cobalt Oxide Triggers Singlet Oxygen and Plant Injury","authors":"Shengmei Kang, Jiawei Chen, Jihao Ma, Xiaohan Zhang, Juewen Liu, Feng Wang","doi":"10.1021/acsmaterialslett.6c00855","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.6c00855","url":null,"abstract":"Lithium cobalt oxide (LCO), a layered lithium-ion battery cathode material, undergoes pronounced chemical and structural reprogramming at the plant interface. Here we show that root-associated conditions convert LCO nanosheets into a high-aspect-ratio needle-like state while preserving the layered oxide framework, consistent with interfacial reconstruction rather than bulk collapse. The transformed material becomes oxidizing under rhizosphere-relevant mild acidity and produces singlet oxygen as the dominant reactive species. Kinetic analysis, pharmacological perturbation, and genetic evidence further show that this early material-derived oxidative input is followed by apoplastic RBOH-dependent ROS production in the plant. These results define a coupled injury mechanism in which rhizosphere-driven transformation creates the initial oxidizing state and the plant amplifies it through its own ROS machinery. LCO phytotoxicity therefore arises from interfacial chemical evolution, rather than from pristine material identity or ion release alone.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"8 10","pages":"2998–3007"},"PeriodicalIF":8.6,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149124663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molybdenum-Activated Halide Perovskites as Emerging Luminescent Materials: Advances and Challenges 钼活化卤化物钙钛矿作为新兴发光材料：进展与挑战

IF 8.6 1区化学

ACS Materials Letters Pub Date : 2026-10-05 Epub Date: 2026-09-07 DOI: 10.1021/acsmaterialslett.6c00701

Boxiang Yang, Jia-Kai Chen, Hong-Tao Sun, Biao Dong

{"title":"Molybdenum-Activated Halide Perovskites as Emerging Luminescent Materials: Advances and Challenges","authors":"Boxiang Yang, Jia-Kai Chen, Hong-Tao Sun, Biao Dong","doi":"10.1021/acsmaterialslett.6c00701","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.6c00701","url":null,"abstract":"Mo-activated halide perovskites are emerging as a distinctive class of transition-metal-activated luminescent materials. Octahedral Mo3+ centers give sharp near-infrared spin-flip and upconversion photoluminescence (PL), whereas emissive centers associated with higher-valence Mo can produce broadband near-infrared PL. These properties are attractive for photophysics and optoelectronics but depend sensitively on the Mo oxidation state, first-shell coordination, ligand-field strength, and oxygen incorporation. This review critically assesses recent progress in Mo-activated halide perovskites. We summarize the electronic structure and selection rules of Mo3+ and analyze Mo3+-centered downconversion and upconversion PL. We then examine broadband PL from halide and oxyhalide perovskites containing higher-valence Mo, highlighting both the evidence for Mo-related emission and the remaining ambiguity in emissive-center assignment. We finally discuss future directions for target-specific host selection, controlled enhancement of Mo3+ radiative transitions and sensitized excitation, quantitative performance evaluation, and predictive materials design, with the aim of moving Mo-activated halide perovskites from spectroscopic observations toward rationally designed luminescent materials.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"8 10","pages":"2847–2858"},"PeriodicalIF":8.6,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149124878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0