Small Methods最新文献_第2页

Supramolecular Interface Buffer Layer for Stable Zinc Anode. 稳定锌阳极的超分子界面缓冲层。

IF 10.7 2区材料科学

Small Methods Pub Date : 2025-01-19 DOI: 10.1002/smtd.202401865

Xuejun Zhu, Yifan Wang, Yuqi Peng, Hong Zhang, Xianxi Zhang, Zhaoqian Li, Li'e Mo, Yang Huang, Linhua Hu

{"title":"Supramolecular Interface Buffer Layer for Stable Zinc Anode.","authors":"Xuejun Zhu, Yifan Wang, Yuqi Peng, Hong Zhang, Xianxi Zhang, Zhaoqian Li, Li'e Mo, Yang Huang, Linhua Hu","doi":"10.1002/smtd.202401865","DOIUrl":"https://doi.org/10.1002/smtd.202401865","url":null,"abstract":"The aqueous zinc ion batteries (AZIBs) are chronically plagued by the inevitable side-reaction and uneven Zn planets stack. Through regulating the water activity and Zn2+ crystal dynamics could effectively relieve those anode/electrolyte interface problems. The (2-hydroxypropyl)-β-cyclodextrin (HBCD), characterized by the excluded-volume and mitigating zinc-flux aggregation effect, is chosen as the electrolyte additive to tail the anode/electrolyte interface. In this work, the supermolecule interface buffer layer is conducted to screen active water and modulate Zn crystallography. Capitalized on the intense electron density of exterior cavity, the HBCD molecules are proven to chemically adsorb onto anode, which sterically repulse the active waters and disrupt H-bonds among waters. Concurrently, the (002)-preferred texture is achieved through inducing Zn2+ ions transport and nucleation. The assembled symmetric Zn//Zn batteries show ameliorated lifespan at various current density (350 h for 10 mA cm-2/10 mAh cm-2 and 100 h for 20 mA cm-2/20 mAh cm-2) and steady operation at 73.26% high Depth of Discharge (DOD). The Zn//NVO batteries deliver 380.4 mAh g-1 high discharge capacity at 1 A g-1. To prove the feasibility, the full battery with a low N/P ratio (2.16) is assembled, it shows ≈260 mAh g-1 discharge capacity and runs stably during 500 cycles.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2401865"},"PeriodicalIF":10.7,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Graphene Oxide Foam-Based Floating Actuators Manipulated via Dual-Marangoni-Effect Propulsion and Magnetic-Field-Guided Navigation. 基于氧化石墨烯泡沫的双马兰戈尼效应推进和磁场导航的浮动驱动器。

IF 10.7 2区材料科学

Small Methods Pub Date : 2025-01-19 DOI: 10.1002/smtd.202401946

Wei Wang, Wei Shao, Ning Li, Heng-Yu Guo, Su-Chuan Zeng, Yang Zhang, Jia-Rui Zhang, Dong-Dong Han, Yong-Lai Zhang

{"title":"Graphene Oxide Foam-Based Floating Actuators Manipulated via Dual-Marangoni-Effect Propulsion and Magnetic-Field-Guided Navigation.","authors":"Wei Wang, Wei Shao, Ning Li, Heng-Yu Guo, Su-Chuan Zeng, Yang Zhang, Jia-Rui Zhang, Dong-Dong Han, Yong-Lai Zhang","doi":"10.1002/smtd.202401946","DOIUrl":"https://doi.org/10.1002/smtd.202401946","url":null,"abstract":"Intelligent stimuli-responsive actuators that can convert environmental energies into mechanical works have garnered significant research interests. Among different actuation principles, Marangoni effect is distinguished due to simplicity, high efficiency, remote manipulation, and water environment adaptability. Nevertheless, both chemical and physical Marangoni actuators face their own challenges with respect to limited chemical loading, precise light illumination, and relatively poor motion controllability. In this study, floating actuators based on graphene oxide foam (GOF), manipulable via dual Marangoni effects and magnetic field, are fabricated by Direct Laser Writing (DLW). This is the first work to realize dual-Marangoni-effect actuators. Specifically, it is observed that the actuator driven by the chemical Marangoni effect can attain an average speed of 0.57 rad s-1. Meanwhile, the actuator driven by the photothermal Marangoni effect is capable of reaching an average speed of 0.17 rad s-1, and the average speed is 1.34 cm s-1 under the manipulation of magnetic field. Multi-field coupling and dual Marangoni effects make actuators more flexible and intelligent, with promising potential for intelligent control and biomedical engineering.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2401946"},"PeriodicalIF":10.7,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Effect of Thermal Reflow on Microstructural Morphology and Contact Mechanics in the Photo-Lithographic Fabrication of Biomimetic Adhesive Materials. 热回流对仿生胶粘材料光刻加工中微结构形貌和接触力学的影响。

IF 10.7 2区材料科学

Small Methods Pub Date : 2025-01-19 DOI: 10.1002/smtd.202402123

Conghui Li, Jiahui Zhao, Jian Chen, Jun Sun, Zhiyong Hu, Yuanming Ji, Qianqian Li, Haozhen Zhan, Kai Deng, Jianming Wu, Zhendong Dai, Keju Ji

{"title":"Effect of Thermal Reflow on Microstructural Morphology and Contact Mechanics in the Photo-Lithographic Fabrication of Biomimetic Adhesive Materials.","authors":"Conghui Li, Jiahui Zhao, Jian Chen, Jun Sun, Zhiyong Hu, Yuanming Ji, Qianqian Li, Haozhen Zhan, Kai Deng, Jianming Wu, Zhendong Dai, Keju Ji","doi":"10.1002/smtd.202402123","DOIUrl":"https://doi.org/10.1002/smtd.202402123","url":null,"abstract":"Bionic adhesive materials with 3D complex micro/nanostructures have several advantages of low preload, strong adhesion, switchable adhesion, etc. As the primary high-precision fabrication method for such materials, lithography is inherently limited by its 2D processing capabilities. Achieving complex 3D morphologies typically requires auxiliary processes, such as dipping and double-sided separate UV exposures, which increase both the complexity and limitations of the fabrication process. In this work, an efficient dimensional regulation method-the photo-lithographic thermal reflow is proposed. The technique utilizes the intrinsic properties of photoresist materials, introducing thermal energy to transform microstructures from 2D to 3D. Mushroom-shaped morphology is taken as an example to fabricate bionic adhesive materials. The fabricated mushroom-shaped micropillar arrays exhibit different tendencies in adhesion force, friction, reversible adhesion, and repeatability, demonstrating the precise tunability of the micropillar geometry. The optimized mushroom-shaped adhesive material not only exhibits the adhesion force of up to 12.26 N on the silicon surface (superior to that of a single foot of gecko (10 N)) but also shows superior friction, easy peeling and high durability. The result demonstrates that this method enables rapid and efficient regulation of 3D morphology and provides a novel approach for the fabrication of complex micro/nanostructure.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2402123"},"PeriodicalIF":10.7,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

High-Uniformity, Shape-Controlled Silicon Nanowires for Enhanced Performance in Optoelectronic Devices. 高均匀性、形状控制的硅纳米线用于提高光电器件的性能。

IF 10.7 2区材料科学

Small Methods Pub Date : 2025-01-19 DOI: 10.1002/smtd.202402075

Zhi-Jun Zhao, Sang-Ho Shin, Xianwu Xu, You Jin Kim, Zu-Po Yang, Soonhyoung Hwang, Sohee Jeon, Bingjun Yu, Linmao Qian, Byeong-Kwon Ju, Jun-Ho Jeong, Munho Kim

{"title":"High-Uniformity, Shape-Controlled Silicon Nanowires for Enhanced Performance in Optoelectronic Devices.","authors":"Zhi-Jun Zhao, Sang-Ho Shin, Xianwu Xu, You Jin Kim, Zu-Po Yang, Soonhyoung Hwang, Sohee Jeon, Bingjun Yu, Linmao Qian, Byeong-Kwon Ju, Jun-Ho Jeong, Munho Kim","doi":"10.1002/smtd.202402075","DOIUrl":"https://doi.org/10.1002/smtd.202402075","url":null,"abstract":"Silicon nanowires (Si NWs) have attracted considerable interest owing to their distinctive properties, which render them promising candidates for a wide range of advanced applications in electronics, photonics, energy storage, and sensing. However, challenges in achieving large-scale production, high uniformity, and shape control limit their practical use. This study presents a novel fabrication approach combining nanoimprint lithography, nanotransfer printing, and metal-assisted chemical etching to produce highly uniform and shape-controlled Si NW arrays. By optimizing the process parameters, Si NWs with various diameters (100, 200, and 400 nm) are successfully fabricated on 6-inch wafers, achieving high uniformity confirmed through statistical and surface reflection analyses. Furthermore, a conformal coating of titanium nitride on the uniform Si NWs enables broadband absorption with average absorption of 75% in the wavelength range from 250 to 2500 nm, demonstrating their potential for next-generation optoelectronic devices. These findings provide valuable insights for the scalable production of Si NWs and their integration into high-performance electronic systems.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2402075"},"PeriodicalIF":10.7,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Pyridinic-N Seized Co in Biphasic Nanoarchitecture for Reversible Oxygen Electrocatalysis Enabling Longevous (>1200 h) Aqueous and Dual-Anion Kosmotropic Electrolyte Stabilized High Power Quasisolid-State Zn-Air Battery. 吡啶- n捕获Co在可逆氧电催化双相纳米结构中实现了寿命（>1200 h）的水和双阴离子亲宇宙电解质稳定高功率准固态锌空气电池。

IF 10.7 2区材料科学

Small Methods Pub Date : 2025-01-19 DOI: 10.1002/smtd.202401874

Srijib Das, Saikat Bolar, Erakulan E Siddharthan, Arupjyoti Pathak, Ranjit Thapa, Ujjwal Phadikar, Haradhan Kolya, Chun-Won Kang, Tapas Kuila, Naresh Chandra Murmu, Aniruddha Kundu

{"title":"Pyridinic-N Seized Co in Biphasic Nanoarchitecture for Reversible Oxygen Electrocatalysis Enabling Longevous (>1200 h) Aqueous and Dual-Anion Kosmotropic Electrolyte Stabilized High Power Quasisolid-State Zn-Air Battery.","authors":"Srijib Das, Saikat Bolar, Erakulan E Siddharthan, Arupjyoti Pathak, Ranjit Thapa, Ujjwal Phadikar, Haradhan Kolya, Chun-Won Kang, Tapas Kuila, Naresh Chandra Murmu, Aniruddha Kundu","doi":"10.1002/smtd.202401874","DOIUrl":"https://doi.org/10.1002/smtd.202401874","url":null,"abstract":"Integration of different active sites by heterostructure engineering is pivotal to optimize the intrinsic activities of an oxygen electrocatalyst and much needed to enhance the performance of rechargeable Zn-air batteries (ZABs). Herein, a biphasic nanoarchitecture encased in in situ grown N-doped graphitic carbon (MnO/Co-NGC) with heterointerfacial sites are constructed. The density functional theory model reveals formation of lattice oxygen bridged heterostructure with pyridinic nitrogen atoms anchored Co species, which facilitate adsorption of oxygen intermediates. Consequently, the well-designed catalyst with accessible active sites, abundant oxygen vacant sites, and heterointerfacial coupling effects, simultaneously accelerate the electron/mass transfer and thus promotes the trifunctional electrocatalysis. The assembled aqueous ZAB delivers maximum power density of ≈268 mW cm-2 and a specific capacity of 797.8 mAh gzn -1 along with excellent rechargeability and extremely small voltage gap decay rate of 0.0007 V h-1. Further, the fabricated quasisolid-state ZAB owns a remarkable power density of 163 mW cm-2 and long cycle life, outperforming the benchmark air-electrode and many recent reports, underlining its robustness and suitability for practical utilization in diverse portable applications.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2401874"},"PeriodicalIF":10.7,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Dynamic Genomic Imaging and Tracking in Living Cells by a DNA Origami-Based CRISPR‒dCas9 System. 基于DNA折纸的CRISPR-dCas9系统在活细胞中的动态基因组成像和跟踪。

IF 10.7 2区材料科学

Small Methods Pub Date : 2025-01-19 DOI: 10.1002/smtd.202401559

Jiao Yang, Xuemei Xu, Linlin Yang, Yuan Tian, Junyan Wang, Da Han

{"title":"Dynamic Genomic Imaging and Tracking in Living Cells by a DNA Origami-Based CRISPR‒dCas9 System.","authors":"Jiao Yang, Xuemei Xu, Linlin Yang, Yuan Tian, Junyan Wang, Da Han","doi":"10.1002/smtd.202401559","DOIUrl":"https://doi.org/10.1002/smtd.202401559","url":null,"abstract":"The clustered regularly interspaced short palindromic repeat (CRISPR)-associated system has displayed promise in visualizing the dynamics of target loci in living cells, which is important for studying genome regulation. However, developing a cell-friendly and rapid transfection method for achieving dynamic and long-term genomic imaging in living cells with high specificity and accuracy is still challenging. Herein, a robust and versatile method is presented that employs a barrel-shaped DNA nanostructure (TUBE) modified with aptamers for loading, protecting, and delivering CRISPR-Cas9 to visualize specific genomic loci in living cells. This approach enables dynamic tracking of target genomic regions (Chr3q29, a repetitive region of chromosome 3) throughout the mitotic process and captures variations in their spatial distribution and quantity accurately. Distinct dynamic behaviors between the Chr3q29 and telomeres are observed, which are linked to their unique chromosomal positions and levels of mobility. High-resolution multicolor labeling of the target genes is achieved, with a high degree of colocalization between the enhanced green fluorescent protein and cyanine-5 channels, facilitating precise imaging of target loci. This method not only supports dynamic genomic imaging but also enables multiplexed tracking, providing a powerful visualization tool for studying cellular processes and genetic interactions in real time within living cells.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2401559"},"PeriodicalIF":10.7,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Dome-Structure Array from Pre-Strained Extendable Mesh for Tactile Sensing Without Crosstalk and Lateral Strain Interference. 无串扰和侧向应变干扰的触觉传感预应变可扩展网格穹顶结构阵列。

IF 10.7 2区材料科学

Small Methods Pub Date : 2025-01-16 DOI: 10.1002/smtd.202401730

Kyubin Bae, Minhyeong Kim, Sangjun Sim, Yunsung Kang, Jongbaeg Kim

{"title":"Dome-Structure Array from Pre-Strained Extendable Mesh for Tactile Sensing Without Crosstalk and Lateral Strain Interference.","authors":"Kyubin Bae, Minhyeong Kim, Sangjun Sim, Yunsung Kang, Jongbaeg Kim","doi":"10.1002/smtd.202401730","DOIUrl":"https://doi.org/10.1002/smtd.202401730","url":null,"abstract":"Flexible tactile sensors have received significant attention for use in wearable applications such as robotics, human-machine interfaces, and health monitoring. However, conventional tactile sensors face challenges in accurately measuring pressure because vertical deformation is induced by Poisson's ratio in situations where lateral strain is applied. This study shows a strain-insensitive flexible tactile sensor array without the crosstalk effect using a highly stretchable mesh. This sensor is fabricated by assembling a sensing layer in which sensing cells form in each hole of an elastomer mesh and liquid-metal-based stretchable electrode layers. Stretching deforms the soft mesh layer with little effect on the rigid sensing cell array, which results in the sensor being insensitive to uniaxial strain. In addition, each sensing cell is formed in a dome shape, which resulted in a sensor exhibiting high sensitivity (7.80 kPa-1) over a wide sensing range (<160 kPa). The proposed design also allows each sensing cell to be electrically separated, enabling the pressure measurements without cell-to-cell crosstalk. Based on these characteristics, strain-insensitive pressure monitoring is demonstrated to prevent carpal/cubital tunnel syndrome by attaching the device to the joints, which suggests its potential application in healthcare.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2401730"},"PeriodicalIF":10.7,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Low-Impedance Hybrid Carbon Structures on SiO_X: A Sequential Gas-Phase Coating Approach. SiOX上的低阻抗杂化碳结构：一种序贯气相涂层方法。

IF 10.7 2区材料科学

Small Methods Pub Date : 2025-01-16 DOI: 10.1002/smtd.202401829

Xiaoguang Zhang, Mingcai Zhao, Carlos M Costa, Juan Zhang, Frieder Scheiba, Senentxu Lanceros-Méndez, Wei Wang, Qi Zhang

{"title":"Low-Impedance Hybrid Carbon Structures on SiOX: A Sequential Gas-Phase Coating Approach.","authors":"Xiaoguang Zhang, Mingcai Zhao, Carlos M Costa, Juan Zhang, Frieder Scheiba, Senentxu Lanceros-Méndez, Wei Wang, Qi Zhang","doi":"10.1002/smtd.202401829","DOIUrl":"https://doi.org/10.1002/smtd.202401829","url":null,"abstract":"Carbon coating on SiOX surface is crucial for enhancing initial Coulombic efficiency (ICE) and cycling performance in batteries, while also buffering volume expansion. Despite its market prevalence, the effects of the carbon layer's quality and structure on the electrochemical properties of SiOX remain underexplored. This study compares carbon layers produced via gas-phase and solid-phase coating methods, introducing an innovative technique that sequentially uses two gases to develop a low-impedance hybrid carbon structure. In this approach, C3H8 is first deposited to create a short-range, vertically ordered carbon architecture, followed by C2H2 to establish a long-range, layered structure, effectively filling the gaps. This results in a dense hybrid carbon layer characterized by minimal defects, high crystallinity, and excellent electronic conductivity. The dominant vertical configuration enhances Li-ion migration. The SiO@C3H8@C2H2 prepared through this method yields a specific surface area of 1.14 m2 g⁻¹ and a high reversible capacity of 1574.9 mAh g⁻¹, alongside an ICE of 83.7%. It showcases remarkable cycling stability, retaining 86.6% capacity after 1000 cycles at room temperature, and performs effectively under varied temperatures and discharging conditions. This low-impedance carbon structure provides a significant reference for other anodes that also require a carbon layer.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2401829"},"PeriodicalIF":10.7,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Droplet-Based EPR Spectroscopy for Real-Time Monitoring of Liquid-Phase Catalytic Reactions. 基于液滴的EPR光谱技术用于液相催化反应的实时监测。

IF 10.7 2区材料科学

Small Methods Pub Date : 2025-01-15 DOI: 10.1002/smtd.202401771

Thomas Moragues, Mikhail Agrachev, Sharon Mitchell, Gunnar Jeschke, Javier Pérez-Ramírez, Andrew J deMello

{"title":"Droplet-Based EPR Spectroscopy for Real-Time Monitoring of Liquid-Phase Catalytic Reactions.","authors":"Thomas Moragues, Mikhail Agrachev, Sharon Mitchell, Gunnar Jeschke, Javier Pérez-Ramírez, Andrew J deMello","doi":"10.1002/smtd.202401771","DOIUrl":"https://doi.org/10.1002/smtd.202401771","url":null,"abstract":"In situ monitoring is essential for catalytic process design, offering real-time insights into active structures and reactive intermediates. Electron paramagnetic resonance (EPR) spectroscopy excels at probing geometric and electronic properties of paramagnetic species during reactions. Yet, state-of-the-art liquid-phase EPR methods, like flat cells, require custom resonators, consume large amounts of reagents, and are unsuited for tracking initial kinetics or use with solid catalysts. To overcome these limitations, a droplet-based microfluidics platform is introduced for real-time EPR monitoring of liquid-phase catalytic reactions. By encapsulating solid and dissolved species within nanoliter droplets, this approach enables precise control over mass transport, reduces reagent consumption, and maintains uniform residence times irrespective of acquisition duration, permitting precise analysis of each spectral component under identical conditions. The platform's compatibility with standard resonators facilitates straightforward integration into any EPR spectrometer. Its versatility is demonstrated by monitoring dynamic ligand exchange processes, key for activating homogeneous catalysts, and tracking redox and radical kinetics in ascorbic acid oxidation by Cu(II) catalysts. Importantly, this method captures both supported and dissolved transition metal species, offering comprehensive insights into catalyst deactivation via metal leaching. This microfluidic approach sets a new standard for liquid-phase in situ EPR measurements, advancing studies of homogeneous and heterogeneous catalytic systems.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2401771"},"PeriodicalIF":10.7,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142982070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Chemo-optogenetic Dimerization Dissects Complex Biological Processes. 化学光遗传二聚化分解复杂的生物过程。

IF 10.7 2区材料科学

Small Methods Pub Date : 2025-01-15 DOI: 10.1002/smtd.202401271

Donglian Wu, Xiaofeng Sun, Xi Chen

引用次数: 0