ACS Materials Letters最新文献_第5页

One-Pot, Two-Stage Synthesis of Carboxylate-Functionalized Fluorescent Polymer Nanoparticles for Ultrasensitive Fluorescent Lateral Flow Immunoassays 一锅两段合成用于超灵敏荧光侧流免疫分析的羧酸功能化荧光聚合物纳米颗粒

IF 8.6 1区化学

ACS Materials Letters Pub Date : 2026-09-07 Epub Date: 2026-08-18 DOI: 10.1021/acsmaterialslett.6c00617

Kian Ping Chan, Xiaojun Chen, Jun Hui Soh, Jerry K. C. Toh, Jackie Y. Ying

{"title":"One-Pot, Two-Stage Synthesis of Carboxylate-Functionalized Fluorescent Polymer Nanoparticles for Ultrasensitive Fluorescent Lateral Flow Immunoassays","authors":"Kian Ping Chan, Xiaojun Chen, Jun Hui Soh, Jerry K. C. Toh, Jackie Y. Ying","doi":"10.1021/acsmaterialslett.6c00617","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.6c00617","url":null,"abstract":"We have developed a one-pot, two-stage method for the synthesis of highly monodispersed fluorescent polystyrene nanoparticles with surface carboxyl functional groups. The fluorescent nanoparticles have a tunable size range of 150−300 nm and excellent photo/chemical stability. Through conjugating antibodies to the surface carboxyl groups, various lateral flow immunoassays (LFIAs) using the fluorescent nanoparticles as the reporters have been developed, achieving a visual limit of detection (LOD) of 39 mIU mL−1 using human chorionic gonadotropin as the model sample. This LOD is 8-fold and 64-fold better as compared to LFIAs using AuNPs and free dye as reporters, respectively. The LODs of our optimized LFIAs are 3 pg mL−1 for HIV-1 p24, 4 ng mL−1 for Zika NS1, and 1 and 0.5 ng mL−1 for Staphylococcus aureus enterotoxin types A and B, respectively. These LOD values are below the clinical cutoffs and are comparable to ELISA results reported in the literature.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"8 9","pages":"2731–2738"},"PeriodicalIF":8.6,"publicationDate":"2026-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148915743","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

Catalyst-Free Dynamic Crosslinking of Polydicyclopentadiene via Thiol–Ene/Imine Chemistry 巯基/亚胺化学催化下多环戊二烯的无催化剂动态交联

IF 8.6 1区化学

ACS Materials Letters Pub Date : 2026-09-07 Epub Date: 2026-08-25 DOI: 10.1021/acsmaterialslett.6c00833

Leila Shahriari, Catherine Biju, Lillian N. Elam, Hayden E. Fowler, Yoongyeong Baek, Myungwoon Lee, Samuel C. Leguizamon, Sungjin Kim

{"title":"Catalyst-Free Dynamic Crosslinking of Polydicyclopentadiene via Thiol–Ene/Imine Chemistry","authors":"Leila Shahriari, Catherine Biju, Lillian N. Elam, Hayden E. Fowler, Yoongyeong Baek, Myungwoon Lee, Samuel C. Leguizamon, Sungjin Kim","doi":"10.1021/acsmaterialslett.6c00833","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.6c00833","url":null,"abstract":"The permanently crosslinked nature of thermosets fundamentally prevents recycling, creating persistent waste and environmental challenges. Among high-performance thermosets, polydicyclopentadiene (pDCPD) is widely used in transportation and infrastructure, yet most end-of-life material is landfilled or incinerated because its irreversibly crosslinked network resists conventional reprocessing. Here, pDCPD, a polynorbornene-based thermoset valued for its mechanical strength, chemical resistance, and compatibility with additive manufacturing, is upcycled into a dynamic covalent network (DCN) by introducing imine linkages. A two-step thiol–ene/imine sequence converts the permanent network into a (re)processable vitrimer-like material. Our dynamic pDCPD preserves high mechanical performance, exhibiting more than a 7-fold higher elastic modulus retention after recycling compared to its unmodified counterpart. Reversible imine chemistry also imparts intrinsic healing capability, reducing the incision width by ∼92% under simple, free-standing thermal treatment. This strategy establishes a practical route to convert pDCPD waste into DCNs, advancing sustainable thermoset design.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"8 9","pages":"2807–2816"},"PeriodicalIF":8.6,"publicationDate":"2026-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148915779","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

Significance of Site Proximity in Cu Single-Atomic Site Catalysts for Electrocatalytic Synthesis of Alanine 铜单原子位点催化剂中位点邻近性对电催化合成丙氨酸的意义

IF 8.6 1区化学

ACS Materials Letters Pub Date : 2026-09-07 Epub Date: 2026-08-17 DOI: 10.1021/acsmaterialslett.6c00477

Ziheng Chen, Zhiming Li, Yuanyuan Ye, Sisi Yue, Weichao Niu, Fanglei Yao, Jin Wang

引用次数: 0

Room-Temperature Spin Splitting Enabled by Thermally Activated Symmetry Breaking in Two-Dimensional Hybrid Perovskites 二维杂化钙钛矿中热激活对称破缺的室温自旋分裂

IF 8.6 1区化学

ACS Materials Letters Pub Date : 2026-09-07 Epub Date: 2026-08-03 DOI: 10.1021/acsmaterialslett.6c00650

Aowen Ma, Yumeng Song, Qi Wei, Qiong Lei, Mingjie Li, Philip C. Y. Chow, Jun Yin

{"title":"Room-Temperature Spin Splitting Enabled by Thermally Activated Symmetry Breaking in Two-Dimensional Hybrid Perovskites","authors":"Aowen Ma, Yumeng Song, Qi Wei, Qiong Lei, Mingjie Li, Philip C. Y. Chow, Jun Yin","doi":"10.1021/acsmaterialslett.6c00650","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.6c00650","url":null,"abstract":"We report a combined computational−experimental study that identifies and explains the enhanced spin splitting in single-layered (n = 1) two-dimensional (2D) lead−iodide hybrid perovskites. We develop a high-throughput screening workflow for experimentally synthesized 2D hybrid perovskites and identify 12 compounds with spin splitting, among which (2-BrPEA)2PbI4 exhibits the largest splitting energy. To establish a unified structure-splitting relationship, we introduce a root-mean-square deviation (RMSD)-based descriptor defined as the deviation between a structure and its inverted counterpart, which correlates with spin-splitting energy more strongly than conventional bond-angle metrics. Notably, although the reported room-temperature structure of (2-BrPEA)2PbI4 is nominally centrosymmetric, it shows strong circularly polarized luminescence (CPL) at room temperature, comparable to the benchmark (4AMP)PbI4. Ab initio molecular dynamics (AIMD) simulations further reveal thermally activated dynamical distortions that transiently break inversion symmetry and amplify spin splitting, establishing lattice dynamics as a key driver of room-temperature spin functionality in 2D hybrid perovskites.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"8 9","pages":"2765–2773"},"PeriodicalIF":8.6,"publicationDate":"2026-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148923735","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

A Flow-Regulated Endothelial-Smooth Muscle Co-culture Vessel-on-a-Chip for Modeling Vascular Inflammation and Drug Evaluation 血流调节内皮-平滑肌共培养血管芯片用于血管炎症建模和药物评估

IF 8.6 1区化学

ACS Materials Letters Pub Date : 2026-09-07 Epub Date: 2026-08-13 DOI: 10.1021/acsmaterialslett.6c00448

Yanke Wang, Changmin Shao, Xuting Zhang, Andong Liu, Jing Lin, Xing Rong, Chao Niu, Chang Jia, Jia Sun, Hao Zhang, Weiting Yu, Rongzhou Wu, Peiyu Chen, Fangfu Ye, Maoping Chu

{"title":"A Flow-Regulated Endothelial-Smooth Muscle Co-culture Vessel-on-a-Chip for Modeling Vascular Inflammation and Drug Evaluation","authors":"Yanke Wang, Changmin Shao, Xuting Zhang, Andong Liu, Jing Lin, Xing Rong, Chao Niu, Chang Jia, Jia Sun, Hao Zhang, Weiting Yu, Rongzhou Wu, Peiyu Chen, Fangfu Ye, Maoping Chu","doi":"10.1021/acsmaterialslett.6c00448","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.6c00448","url":null,"abstract":"Vascular inflammation drives vessel injury and cardiovascular disease progression; however, current in vitro models poorly reproduce vascular wall organization under flow. Here, we developed a flow-controlled vessel-on-a-chip (VOC) platform using a tunable collagen matrix, sequential seeding of primary human coronary artery smooth muscle cells (HCASMCs) and human umbilical vein endothelial cells (HUVECs), and an intervening fibronectin layer to establish a biomimetic vascular structure. TNF-α stimulation induced key features of vascular inflammation, including increased VCAM-1, ICAM-1, E-selectin, MCP-1, and IL-6, together with early phenotypic remodeling of HCASMCs. Lovastatin (LS) attenuated these responses, reducing adhesion molecule expression by approximately 60–80%, decreasing cytokine secretion, and helping preserve layered vascular organization. Overall, this VOC provides a controlled and biomimetic platform for studying multilayered vascular inflammation and evaluating cardiovascular therapeutics, with potential applications in mechanistic research and preclinical drug screening.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"8 9","pages":"2586–2594"},"PeriodicalIF":8.6,"publicationDate":"2026-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148923786","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

Fano Resonances from Guest−Host Coupling of MOF IVCT and Solvent Vibrational Bands MOF IVCT与溶剂振动带主客体耦合的范诺共振

IF 8.6 1区化学

ACS Materials Letters Pub Date : 2026-09-07 Epub Date: 2026-08-24 DOI: 10.1021/acsmaterialslett.6c00695

Jonathan L. Rowell, Alexander C. Vastano, Carl K. Brozek

引用次数: 0

Recent Advances in Copper-Doped CdSe Colloidal Quantum Wells: A Photophysical and Application Perspective 掺杂铜的CdSe胶体量子阱的最新进展：光物理和应用前景

IF 8.6 1区化学

ACS Materials Letters Pub Date : 2026-09-07 Epub Date: 2026-08-06 DOI: 10.1021/acsmaterialslett.6c00470

Qingqing Liu, Zhenzhong Lian, Yadong Han, Ke Wang, Songyan Hou, Yu Junhong, Baiquan Liu, Manoj Sharma

{"title":"Recent Advances in Copper-Doped CdSe Colloidal Quantum Wells: A Photophysical and Application Perspective","authors":"Qingqing Liu, Zhenzhong Lian, Yadong Han, Ke Wang, Songyan Hou, Yu Junhong, Baiquan Liu, Manoj Sharma","doi":"10.1021/acsmaterialslett.6c00470","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.6c00470","url":null,"abstract":"Doping CdSe colloidal quantum wells (CQWs) with transition-metal ions such as Cu has recently emerged as a powerful strategy for tailoring their electronic structure, excitonic response, and lattice interaction, complementary to what can be achieved through quantum-size control or heterostructure engineering. In this perspective, we highlight recent advances in Cu-doped CdSe CQWs from both fundamental and application-oriented viewpoints. We summarize how Cu incorporation modulates the intrinsic photophysical behavior of CQWs, including carrier recombination pathways, carrier-phonon interaction, and nonlinear optical responses. Building on these fundamental insights, we discuss performance advances in key optoelectronic devices, such as luminescent solar concentrators, light-emitting diodes, and optically pumped lasers, that directly leverage these dopant-engineered properties. Finally, we outline emerging opportunities and key challenges for leveraging doped CQWs in next-generation optoelectronic and photonic platforms.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"8 9","pages":"2380–2390"},"PeriodicalIF":8.6,"publicationDate":"2026-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148915739","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

Sustainable Metal–Organic Framework Water Harvesters in the Artificial Intelligence Era 人工智能时代的可持续金属-有机框架水采集器

IF 8.6 1区化学

ACS Materials Letters Pub Date : 2026-09-07 Epub Date: 2026-08-13 DOI: 10.1021/acsmaterialslett.6c00580

Reid A. Coyle, Shyam Chand Pal, Peter Walther, Saeun Park, Bin Feng, Zhiling Zheng

{"title":"Sustainable Metal–Organic Framework Water Harvesters in the Artificial Intelligence Era","authors":"Reid A. Coyle, Shyam Chand Pal, Peter Walther, Saeun Park, Bin Feng, Zhiling Zheng","doi":"10.1021/acsmaterialslett.6c00580","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.6c00580","url":null,"abstract":"Metal–organic frameworks (MOFs) are promising candidates for water harvesting due to their tunable pore environments, which can be precisely engineered to capture and release water in arid conditions. Integrating artificial intelligence (AI) into MOF discovery can accelerate the design of high-performance sorbents by identifying structural features that enhance atmospheric water harvesting (AWH), stability, and cycling efficiency. In this Perspective, we examine key MOF design principles, including the adsorption site, operational relative humidity (RH), uptake capacity, hysteresis, and scalability. We highlight recent design advancements such as multivariate strategies and long-arm linker extension and illustrate how these principles tune pore capacity and hydrophilicity while preserving stability and crystallinity. Furthermore, we discuss how machine learning (ML) and large language models (LLMs) can accelerate the discovery of next-generation MOF water harvesters through predictive synthesis, inverse design, and elucidating synthesis–structure–property relationships for water-harvesting MOFs.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"8 9","pages":"2391–2400"},"PeriodicalIF":8.6,"publicationDate":"2026-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148915817","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

Sub-10 nm-Thick Zinc Nanosheets from One-Step Solution Synthesis 一步溶液合成的10纳米厚锌纳米片

IF 8.6 1区化学

ACS Materials Letters Pub Date : 2026-09-07 Epub Date: 2026-08-25 DOI: 10.1021/acsmaterialslett.6c00562

Dasai Ban, Dandan Wei, Mingtao Chen, Huali Nie, Jiaxing Huang

{"title":"Sub-10 nm-Thick Zinc Nanosheets from One-Step Solution Synthesis","authors":"Dasai Ban, Dandan Wei, Mingtao Chen, Huali Nie, Jiaxing Huang","doi":"10.1021/acsmaterialslett.6c00562","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.6c00562","url":null,"abstract":"While solution-phase synthesis of noble metal nanosheets (e.g., Au, Ag, Pt) is well established, preparing analogous structures from more reactive metals such as Zn remains relatively unexplored. Here, we report a one-step solution-phase synthesis of ultrathin, single-crystalline Zn nanosheets via amine-directed thermal reduction of diethylzinc. The amine serves a dual role as reductant and structure-directing agent, selectively stabilizing the basal (0002) facets to promote anisotropic lateral growth. The resulting nanosheets are ∼7–9 nm thick, comprising a metallic Zn core encapsulated by an epitaxial ZnO passivation layer (∼1.4 nm) on both sides. Vacuum filtration and cold pressing yield a flexible Zn film with unidirectional crystallographic alignment. The epitaxial ZnO layer imparts high oxidation stability, allowing storage under ambient conditions. Such well-defined ultrathin Zn nanosheets provide a model system for studying the optical properties and surface oxidation of reactive metals, as well as a building block for constructing bulk Zn-based structures and composite materials.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"8 9","pages":"2681–2686"},"PeriodicalIF":8.6,"publicationDate":"2026-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148915855","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

Uranium-Incorporated Layered Perovskitoids with Heterostructures Exhibit Hole-Dominant Transport 具有异质结构的含铀层状钙钛矿表现出空穴优势输运

IF 8.6 1区化学

ACS Materials Letters Pub Date : 2026-09-07 Epub Date: 2026-08-13 DOI: 10.1021/acsmaterialslett.6c00482

Zhizai Li, Linmin Li, Jia-Li Chen, Chunna Huang, Aili Wang, Zhifang Chai, Shuao Wang, Yaxing Wang

{"title":"Uranium-Incorporated Layered Perovskitoids with Heterostructures Exhibit Hole-Dominant Transport","authors":"Zhizai Li, Linmin Li, Jia-Li Chen, Chunna Huang, Aili Wang, Zhifang Chai, Shuao Wang, Yaxing Wang","doi":"10.1021/acsmaterialslett.6c00482","DOIUrl":"https://doi.org/10.1021/acsmaterialslett.6c00482","url":null,"abstract":"The bottom-up synthesis of bulk single crystals with intrinsic heterostructural electronic behavior has attracted attention, yet examples exhibiting hole-dominated transport remain exceedingly rare. Herein, we report a uranium-incorporated layered perovskitoid, representing the first actinide-based single-crystal heterostructure with intrinsic hole-dominated transport. [(UO2)GABA3]4[Pb11Br28]Br2∙2H2O (GABA = protonated γ-aminobutyric acid, (COO–)CH2CH2CH2NH3+) is synthesized via solution assembly of a preformed uranyl-aminobutyric complex, [(UO2)GABA3]NO3Br∙3H2O, with PbBr2. The uranyl-aminobutyric complex units act as interlayer spacers between the semiconducting perovskitoid slabs. Importantly, the unfilled 5f/6d orbitals of the uranyl moiety insert energetically into the band structure of the perovskitoid slabs, creating a staggered gap structure that facilitates hole-dominated behavior. This compound exhibits a hole mobility of 0.45 cm2·V–1·s–1 with a hole-to-electron mobility ratio of ∼3.5. This work not only expands the compositional space of single crystal heterostructures but also highlights the untapped potential of 5f elements in engineering charge transport for high-performance electronic materials.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"8 9","pages":"2616–2622"},"PeriodicalIF":8.6,"publicationDate":"2026-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148923782","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