ACS Nano最新文献

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The Regulation of Ion Transport Microenvironment in Micropores to Precisely Construct Porous Polymer Electrolytes for Solid-State Lithium-Metal Batteries. 调控离子在微孔中的输运微环境以精确构建固态锂金属电池用多孔聚合物电解质。
IF 17.1 1区 材料科学
ACS Nano Pub Date : 2025-06-17 DOI: 10.1021/acsnano.5c07105
Songxin Lu,Kuan He,Lingxi Zhou,Weijian Xu,Xiaoxin Lin,Changhong Chen,Yu Lin,Jiahui He,Yongbin Xu,Lei Tian
{"title":"The Regulation of Ion Transport Microenvironment in Micropores to Precisely Construct Porous Polymer Electrolytes for Solid-State Lithium-Metal Batteries.","authors":"Songxin Lu,Kuan He,Lingxi Zhou,Weijian Xu,Xiaoxin Lin,Changhong Chen,Yu Lin,Jiahui He,Yongbin Xu,Lei Tian","doi":"10.1021/acsnano.5c07105","DOIUrl":"https://doi.org/10.1021/acsnano.5c07105","url":null,"abstract":"Porous solid-state polymer electrolytes have emerged as promising candidates for next-generation batteries owing to their superior safety, excellent interfacial compatibility, and efficient ion transport properties. However, systematically tuning the Li+ solvent microenvironment within the micropores of PIMs (inherent microporous polymers) to significantly enhance Li+ conduction remains unexplored. Herein, we propose a strategy for performing microenvironmental engineering within microporous channels. By creating interconnected subnanometer-scale ion transport channels within a rigid and twisted PIM backbone, we precisely regulate the Li+ solvent interactions in the pore microenvironment. This dual optimization enables the porous polymer electrolyte to exhibit an excellent room-temperature ionic conductivity of 1.08 × 10-3 S cm-1, a high lithium-ion transference number (0.88), and wide electrochemical window (5.2 V). These superior electrochemical properties allow the assembled Li-Li symmetric battery to achieve stable deposition/plating over 1500 h at 0.1 mA cm-2. Consequently, the assembled LFP|PIM-CONH2|Li delivers an initial discharge specific capacity of 158.2 mAh g-1 at 0.5 and 25 °C, with a capacity retention rate of 93.6% after 400 cycles. More notably, the assembled pouch cells still exhibit a high discharge specific capacity of 139.2 mAh g-1 after folding and cutting under 0.5 C. Moreover, the introduction of our proposed nonflammable PIM-CONH2 electrolyte represents a significant advancement, facilitating the transition toward the practical implementation of high-safety and high-energy-density solid-state batteries.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"23 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144311622","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
Injectable Thymosin β4-Modified Hyaluronic Acid Hydrogel with Exosomes for Stem Cell Homing and Neuronic-Angiogenic-Osteogenic Coupled Cranial Repair. 注射胸腺素β4修饰透明质酸外泌体水凝胶用于干细胞归一和神经元-血管生成-成骨耦合颅骨修复。
IF 17.1 1区 材料科学
ACS Nano Pub Date : 2025-06-17 DOI: 10.1021/acsnano.4c10386
Yanhai Xi,Zhen Zhang,Zixuan Zhao,Ba Qiu,Weiheng Wang,Guohua Xu,Zheru Sun,Feng Shi,Wenkui Liang,Jun Wu
{"title":"Injectable Thymosin β4-Modified Hyaluronic Acid Hydrogel with Exosomes for Stem Cell Homing and Neuronic-Angiogenic-Osteogenic Coupled Cranial Repair.","authors":"Yanhai Xi,Zhen Zhang,Zixuan Zhao,Ba Qiu,Weiheng Wang,Guohua Xu,Zheru Sun,Feng Shi,Wenkui Liang,Jun Wu","doi":"10.1021/acsnano.4c10386","DOIUrl":"https://doi.org/10.1021/acsnano.4c10386","url":null,"abstract":"Accelerating angiogenesis, neurogenesis, and in situ stem cell recruitment at the site of bone defects is critical for bone regenerative repair. Bone marrow mesenchymal stem cell (BMSC) exosomes are cell-free therapeutic agents with bone-enhancing effects. Thymosin β4 (Tβ4) is a short peptide known for its key role in tissue repair and angiogenesis. In this study, we successfully developed a multifunctional injectable Exo@Tβ4/HAMA hydrogel platform by grafting Tβ4 onto methylmalonic anhydride-modified hyaluronic acid (HAMA) via photo-cross-linking and then encapsulating BMSC-derived exosomes. In vitro results demonstrated that the Exo@Tβ4/HAMA hydrogel exhibited improved mechanical properties, favorable biocompatibility, and the ability to significantly recruit BMSCs. Additionally, it showed superior vasculogenic effects on HUVECs and osteogenic differentiation potentials on BMSCs. In vivo studies revealed that the hydrogel successfully promoted both neurogenesis, angiogenesis, and new bone formation. It also facilitated osteogenesis through the ERK1/2-dependent RUNX2 signaling pathway. Our results suggest that this hydrogel platform exerts a robust multisystemic regulatory effect, fostering rat bone repair through the synergistic promotion of in situ stem cell recruitment, angiogenesis, neurogenesis, and osteogenesis. As a simple-to-prepare and multifunctional integrated bone graft, this hydrogel platform holds a significant promise in establishing a conducive microenvironment for optimal bone healing.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"35 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144311626","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
Silicon Carbide Nanowires Impair Mucociliary Clearance-Mediated Innate Immunity in Primary Human Bronchial Epithelial Cells. 碳化硅纳米线损害原代人支气管上皮细胞粘液纤毛清除介导的先天免疫。
IF 15.8 1区 材料科学
ACS Nano Pub Date : 2025-06-17 Epub Date: 2025-06-06 DOI: 10.1021/acsnano.5c01981
Ziting Wang, Jimmy Vernaz, Nikolaos Tagaras, Bernadett Boda, Tina Buerki-Thurnherr, Giacomo Reina, Vera M Kissling, Samuel Constant, Govind Gupta, Peter Wick
{"title":"Silicon Carbide Nanowires Impair Mucociliary Clearance-Mediated Innate Immunity in Primary Human Bronchial Epithelial Cells.","authors":"Ziting Wang, Jimmy Vernaz, Nikolaos Tagaras, Bernadett Boda, Tina Buerki-Thurnherr, Giacomo Reina, Vera M Kissling, Samuel Constant, Govind Gupta, Peter Wick","doi":"10.1021/acsnano.5c01981","DOIUrl":"10.1021/acsnano.5c01981","url":null,"abstract":"<p><p>The respiratory tract possesses mucociliary-driven innate immune defense mechanisms that protect the lungs from harmful environmental exposures, but when damaged, increase susceptibility to respiratory infections and diseases. Inhalation exposure to certain nanomaterials has been shown to trigger fibrosis and other respiratory conditions. However, there is a limited understanding of whether nanomaterials can impair mucociliary defense in lungs and its underlying mechanism. Here, we first investigated the fate of zero-dimensional, one-dimensional, and two-dimensional silicon- and carbon-based nanomaterials (silicon carbide nanowires (SiC NWs), silicon dioxide (SiO<sub>2</sub>), multiwalled carbon nanotubes (MWCNTs), and graphene nanosheets) in airway mucus. The results demonstrated that only SiC NWs escaped through the mucus gel without interactions, suggesting their potential to diffuse across the protective mucus layer. The hydrophobicity of the SiC NWs, associated with the low abundance of polar surface groups, such as silanols, was mainly responsible for the observed shielding of particle interactions with mucus components. Furthermore, repeated exposure to SiC NWs in primary bronchial epithelial cell cultures revealed abnormal ciliary structure and significantly (<i>p</i> < 0.05) compromised mucociliary clearance functions, however, no such effects were evident for other particles. mRNA expression analysis showed a significant (<i>p</i> < 0.05) increase in <i>FOX-J1</i> transcripts, suggesting transcriptional dysregulation of ciliogenesis after exposure to SiC NWs. Finally, SiC NWs reduced epithelial barrier integrity and promoted pro-inflammatory and pro-fibrotic responses. These findings unravel the hazardous potential of SiC NWs upon inhalation exposure and identify the breaching and impairment of the mucociliary innate defense as a key event in their respiratory toxicity.</p>","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":" ","pages":"21426-21445"},"PeriodicalIF":15.8,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144232624","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
Stem Cell-Derived Extracellular Vesicles in Skin Antiaging Treatments. 干细胞来源的细胞外囊泡在皮肤抗衰老治疗中的应用。
IF 17.1 1区 材料科学
ACS Nano Pub Date : 2025-06-17 DOI: 10.1021/acsnano.4c17406
Ji Yeong Park,Se Young Jung,Donghyeon Yoo,Sihun Lee,Dabin Go,Van Dat Bui,Won-Kyo Jung,Dong Gil You,Jae Hyung Park,Wooram Um
{"title":"Stem Cell-Derived Extracellular Vesicles in Skin Antiaging Treatments.","authors":"Ji Yeong Park,Se Young Jung,Donghyeon Yoo,Sihun Lee,Dabin Go,Van Dat Bui,Won-Kyo Jung,Dong Gil You,Jae Hyung Park,Wooram Um","doi":"10.1021/acsnano.4c17406","DOIUrl":"https://doi.org/10.1021/acsnano.4c17406","url":null,"abstract":"As the median age of the global population rises and the demand for aesthetic enhancement increases, interest in antiaging skin technologies has been growing significantly. This review first addresses the molecular mechanisms underlying skin aging, followed by an overview of traditional antiaging approaches and their benefits and limitations. Furthermore, it emphasizes the potential of mesenchymal stem cell-derived extracellular vesicles (MSC-EVs) as promising alternatives to address the shortcomings of conventional strategies. This article highlights the antiaging effects and therapeutic mechanisms of MSC-EVs in the skin microenvironment and identifies promising targets for skin antiaging interventions based on the functional properties of MSC-EVs. Finally, this review introduces the recent advances and future directions for MSC-EV-based antiaging strategies.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"30 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144311624","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
Nanorobot-Cell Communication via In Situ Generation of Biochemical Signals: Toward Regenerative Therapies. 纳米机器人-细胞通讯通过原位产生生化信号:走向再生治疗。
IF 17.1 1区 材料科学
ACS Nano Pub Date : 2025-06-17 DOI: 10.1021/acsnano.5c02092
Roshan Velluvakandy,Xiaohui Ju,Martin Pumera
{"title":"Nanorobot-Cell Communication via In Situ Generation of Biochemical Signals: Toward Regenerative Therapies.","authors":"Roshan Velluvakandy,Xiaohui Ju,Martin Pumera","doi":"10.1021/acsnano.5c02092","DOIUrl":"https://doi.org/10.1021/acsnano.5c02092","url":null,"abstract":"Achieving precise control of cellular processes drives possibilities for next-generation therapeutic approaches. However, existing technologies for influencing cell behavior primarily rely on specific drug delivery, limiting their ability to mimic natural cellular communication processes. In this work, we developed glucose-powered gold-silica (Au-SiO2) nanorobots that induce cell migration by generating steady-state hydrogen peroxide (H2O2) as a biochemical signaling molecule to mimic natural cellular communication with high spatial resolution. These nanorobots leverage the unique 2-in-1 catalytic activity of gold nanoparticles for glucose oxidation and H2O2 decomposition, allowing for precise control over the generation of steady-state H2O2 concentration and enhanced diffusion powered by glucose within the cellular microenvironment. We further demonstrated that at low dosages of nanorobots, the steady-state H2O2 generation promotes cell migration and proliferation, while higher dosages of nanorobots slow down cell proliferation. The proposed design of this biocompatible nanorobot is intended to enable communication with the environment and provide a noninvasive, biochemical command system for regulating cellular behavior. Additionally, we show proof of principle of a method by which nanorobots can augment wound healing and similar regenerative therapies.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"232 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144311627","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
Complementary Metal–Oxide–Semiconductor Integrated Circuits Based on Aligned Carbon Nanotubes 基于排列碳纳米管的互补金属氧化物半导体集成电路
IF 17.1 1区 材料科学
ACS Nano Pub Date : 2025-06-17 DOI: 10.1021/acsnano.5c04675
Yingjun Yang, Haijie Chen, Haozhe Lu, Hongshan Xiao, Bo Wang, Chuanhong Jin, Lian-Mao Peng, Zhiyong Zhang
{"title":"Complementary Metal–Oxide–Semiconductor Integrated Circuits Based on Aligned Carbon Nanotubes","authors":"Yingjun Yang, Haijie Chen, Haozhe Lu, Hongshan Xiao, Bo Wang, Chuanhong Jin, Lian-Mao Peng, Zhiyong Zhang","doi":"10.1021/acsnano.5c04675","DOIUrl":"https://doi.org/10.1021/acsnano.5c04675","url":null,"abstract":"Low-dimensional semiconductors have been extensively studied for constructing ultrascaled and high-performance transistors for potential application in digital integrated circuits (ICs) in sub-1 nm technology nodes. Many ICs on various nanomaterials have been continuously demonstrated, but few works have presented both high performance and a complementary metal–oxide–semiconductor (CMOS) architecture, which are necessary for forming ultralarge-scale digital ICs. In this work, we fabricated symmetric CMOS field-effect transistors (FETs) on aligned semiconducting carbon nanotubes (A-CNTs) with high performance and a high yield. Typical basic functional units, including an inverter, a NAND gate, and a static random-access memory (SRAM) cell consisting of the A-CNT CMOS FETs, were realized with rail-to-rail output even under a low V<sub>DD</sub> down to 0.1 V, and a three-bit decoder consisting of 70 CNT CMOS FETs demonstrated scalable integration. Furthermore, 5-stage ring oscillators consisting of CNT CMOS FETs with a 300 nm gate length exhibited an oscillating frequency of 1.13 GHz, indicating a stage delay of 88 ps, which represents the demonstration of A-CNT-based CMOS ICs operating at GHz frequencies. The achievement in scalable integration of high-performance CNT CMOS FETs and ICs demonstrates the potential of carbon-based electronics in digital IC applications for advanced technology nodes.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"18 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144305233","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
Characterization of a Single-Molecule Sensitive Digital Flow Cytometer for Amplification-Free Digital Assays. 用于无扩增数字分析的单分子灵敏数字流式细胞仪的特性。
IF 17.1 1区 材料科学
ACS Nano Pub Date : 2025-06-17 DOI: 10.1021/acsnano.5c07028
Yuanhua Cheng,Alya Nguyen,Wyatt Nelson,Bryant S Fujimoto,Mengxia Zhao,Daniel T Chiu
{"title":"Characterization of a Single-Molecule Sensitive Digital Flow Cytometer for Amplification-Free Digital Assays.","authors":"Yuanhua Cheng,Alya Nguyen,Wyatt Nelson,Bryant S Fujimoto,Mengxia Zhao,Daniel T Chiu","doi":"10.1021/acsnano.5c07028","DOIUrl":"https://doi.org/10.1021/acsnano.5c07028","url":null,"abstract":"Digital assays such as digital PCR for nucleic acids and digital ELISA for proteins provide absolute quantitation and greater accuracy, sensitivity, and reproducibility than their analogue counterparts (real-time PCR and standard ELISA), but current digital assays involve amplification (e.g., DNA amplification in digital PCR and signal amplification in digital ELISA), which makes high multiplexing difficult, often requires complex and expensive sample compartmentalization, and adds reaction steps. We have developed a single-molecule sensitive flow cytometer, which we termed a digital flow cytometer (dFC). dFC optimizes the sensitivity and efficiency of single-molecule detection by using smaller, planar microfluidic channels, a smaller probe volume, and a shorter working distance/higher numerical aperture objective than used in current commercial high-sensitivity flow cytometers, allowing digital assays via direct single-molecule counting. This paper describes our characterization of the analytical performance of this system when detecting antibody-dye conjugates and demonstrates absolute concentration measurements of commercial antibody-dye conjugates. The dFC exhibited a single-molecule detection efficiency with which over 98% for antibodies conjugated with 18 different small-molecule, phycobiliprotein, and semiconducting polymer dyes were separated from noise, a low false-positive rate, a stable baseline signal, and accurate concentration measurements with a dynamic range spanning 4 orders of magnitude. This system can be used for authenticating antibody-dye conjugates used in flow cytometry and tissue imaging studies and in the development of multiplexed, amplification-free digital assays for nucleic acids and proteins.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"36 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144311625","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
Advances in Catalytic Host Cathodes for Aqueous Metal (Zn, Cu, Fe)-Ion Batteries 金属(Zn, Cu, Fe)离子电池催化阴极的研究进展
IF 17.1 1区 材料科学
ACS Nano Pub Date : 2025-06-17 DOI: 10.1021/acsnano.5c05567
Honghai Wang, Lei Hu, Huiting Xu, Jiapeng Liu
{"title":"Advances in Catalytic Host Cathodes for Aqueous Metal (Zn, Cu, Fe)-Ion Batteries","authors":"Honghai Wang, Lei Hu, Huiting Xu, Jiapeng Liu","doi":"10.1021/acsnano.5c05567","DOIUrl":"https://doi.org/10.1021/acsnano.5c05567","url":null,"abstract":"Aqueous batteries with conversion mechanisms show promise for large-scale energy storage due to the inherent safety, cost-effectiveness, high energy density, and eco-friendly advantages. However, redox species migration and sluggish kinetics critically impede the further development of aqueous-conversion batteries. The integration of catalytically active sites into host cathode materials has been proposed as an effective solution to these challenges, with notable advancements in research. This review systematically summarizes recent advances in catalytic host materials for aqueous metal-ion batteries (zinc-iodine, zinc-bromide, zinc-sulfur, zinc-selenium, zinc-tellurium, copper-sulfur, and iron-iodine), analyzing their catalytic mechanisms and conversion processes. Meanwhile, this review identifies current research limitations while proposing targeted strategies to overcome the challenges. This work deepens the understanding of aqueous metal (Zn, Cu, and Fe)-ion batteries and guides the rational design of advanced energy storage technologies.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"66 1 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144305267","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
Self-Accelerating Drops on Silicone-Based Super Liquid-Repellent Surfaces 硅基超拒液表面的自加速滴
IF 17.1 1区 材料科学
ACS Nano Pub Date : 2025-06-17 DOI: 10.1021/acsnano.5c04250
Parham Koochak, Marcus Lin, Ali Afzalifar, Arsalan Hashemi, Sankara Arunachalam, Ayan Shoaib, Valtteri Turkki, Tapio Ala-Nissila, Dan Daniel, Maja Vuckovac, William S. Y. Wong
{"title":"Self-Accelerating Drops on Silicone-Based Super Liquid-Repellent Surfaces","authors":"Parham Koochak, Marcus Lin, Ali Afzalifar, Arsalan Hashemi, Sankara Arunachalam, Ayan Shoaib, Valtteri Turkki, Tapio Ala-Nissila, Dan Daniel, Maja Vuckovac, William S. Y. Wong","doi":"10.1021/acsnano.5c04250","DOIUrl":"https://doi.org/10.1021/acsnano.5c04250","url":null,"abstract":"Design of super liquid-repellent surfaces has relied on an interplay between surface topography and surface energy. Perfluoroalkylated materials are often used, but they are environmentally unsustainable and notorious for building up static charge. Therefore, there is a need for understanding the performance of sustainable low surface energy materials with antistatic properties. Here, we explore drop interactions with perfluoroalkyl- and silicone-based surfaces, focusing on three modes of drop-to-surface interactions. The behavior of drops rolling under gravity is compared to those subjected to lateral and normal forces under constant slide (i.e., friction) and detachment (i.e., adhesion) velocities. We demonstrate that a drop’s characteristic and dynamic mobility depends on surface chemistry, with sequential drop interactions being particularly affected. By utilizing force-and-charge instruments, we show how rolling drops are primarily governed by adhesion and its associated electrostatic effects, instead of friction. Perfluoroalkylated surfaces continuously accumulate charges, while silicone surfaces rapidly saturate. Consequently, sequentially contacting drops accumulate significant charges on the former while rapidly diminishing on the latter. The drop charge suppressing behavior of silicones enhances drop mobility despite their higher surface energy compared to perfluoroalkyls. Quantum mechanical density functional theory calculations show significant differences in surface charge distributions at the atomic level. Simulations suggest that variations in the lifetimes of surface hydroxyl ions likely drive the markedly different drop charging behaviors. Our findings demonstrate the critical role of surface chemistry and its coupled electrostatics in drop mobility, providing valuable insights for designing environmentally friendly, antistatic, super liquid-repellent surfaces.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"43 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144305356","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
Decoupling Redox Kinetics with Complementary d-Band Catalysis for High-Performance Lithium–Sulfur Batteries 互补d带催化高性能锂硫电池的解耦氧化还原动力学
IF 17.1 1区 材料科学
ACS Nano Pub Date : 2025-06-16 DOI: 10.1021/acsnano.5c05449
Wei Xiao, Kisoo Yoo, Jong-Hoon Kim, Hengyue Xu
{"title":"Decoupling Redox Kinetics with Complementary d-Band Catalysis for High-Performance Lithium–Sulfur Batteries","authors":"Wei Xiao, Kisoo Yoo, Jong-Hoon Kim, Hengyue Xu","doi":"10.1021/acsnano.5c05449","DOIUrl":"https://doi.org/10.1021/acsnano.5c05449","url":null,"abstract":"Advancing our understanding of heterogeneous catalysis is critical for resolving the kinetic challenges in lithium–sulfur batteries (LSBs). Herein, we propose a theoretical framework: the dual d-band model, which extends the classical d-band center theory by introducing two distinct catalytic sites with complementary d-band centers. Specifically, by strategically integrating two distinct catalytic sites with complementary d-band centers, where one aligns with the lowest unoccupied molecular orbital (LUMO) of sulfur species to optimize the sulfur reduction reaction (SRR) and the other aligns with the highest occupied molecular orbital (HOMO) to accelerate the sulfur evolution reaction (SER), the redox kinetics of sulfur species is effectively balanced. To verify this hypothesis, we developed a dual-site catalyst, Mn-RuO<sub>2</sub> (MRO), featuring Ru sites tailored for SRR and the supplementary Mn sites optimized for SER. Leveraging this dual-site synergy, the MRO-based cell achieved superior performance under limited electrolyte conditions. This work presents a promising strategy to regulate sulfur redox reactions for high-performance LSBs.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"12 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144305236","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
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