Pub Date : 2025-03-10DOI: 10.1021/acs.nanolett.5c00564
Zhicong Liu, Jianming Tao, Han Jiang, Yubing Wu, Liang Lin, Yanmin Yang, Yue Chen, Zhigao Huang, Yingbin Lin
Combined solid electrolytes address cathode-anode compatibility in all-solid-state Li-ion batteries (ASSLBs), yet interface stability and ion transport mechanisms between different electrolytes remain unclear. Herein, we investigate Li6PS5Cl (LPSC), Li3InCl6 (LIC), and Li1.75ZrO0.5Cl4.75 (LZOC) composite electrolytes through electrochemical analysis and operando X-ray photoelectron spectroscopy. Our results reveal that the electrostatic potential difference between LPSC and LIC inhibits Li+ migration, leading to the decomposition of LIC into InCl3 and LiCl, causing battery failure. In contrast, LZOC forms an oxygen-rich interphase with LiCoO2 (LCO), showing better interfacial stability. The electrostatic potential difference between LZOC and LPSC promotes Li+ diffusion, maintaining interface stability even as LPSC decomposes, thereby preventing severe degradation of LZOC. Therefore, the LCO-LZOC composite cathode exhibits better electrochemical performance than LCO-LIC. This study elucidates the basic mechanism of interfacial reaction and ion diffusion in sulfide–halide electrolytes and emphasizes the key role of electrolyte compatibility in ASSLBs failure pathways.
{"title":"Deciphering Interfacial Stability of Sulfide and Halide-Based Electrolytes via Operando X-ray Photoelectron Spectroscopy","authors":"Zhicong Liu, Jianming Tao, Han Jiang, Yubing Wu, Liang Lin, Yanmin Yang, Yue Chen, Zhigao Huang, Yingbin Lin","doi":"10.1021/acs.nanolett.5c00564","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c00564","url":null,"abstract":"Combined solid electrolytes address cathode-anode compatibility in all-solid-state Li-ion batteries (ASSLBs), yet interface stability and ion transport mechanisms between different electrolytes remain unclear. Herein, we investigate Li<sub>6</sub>PS<sub>5</sub>Cl (LPSC), Li<sub>3</sub>InCl<sub>6</sub> (LIC), and Li<sub>1.75</sub>ZrO<sub>0.5</sub>Cl<sub>4.75</sub> (LZOC) composite electrolytes through electrochemical analysis and operando X-ray photoelectron spectroscopy. Our results reveal that the electrostatic potential difference between LPSC and LIC inhibits Li<sup>+</sup> migration, leading to the decomposition of LIC into InCl<sub>3</sub> and LiCl, causing battery failure. In contrast, LZOC forms an oxygen-rich interphase with LiCoO<sub>2</sub> (LCO), showing better interfacial stability. The electrostatic potential difference between LZOC and LPSC promotes Li<sup>+</sup> diffusion, maintaining interface stability even as LPSC decomposes, thereby preventing severe degradation of LZOC. Therefore, the LCO-LZOC composite cathode exhibits better electrochemical performance than LCO-LIC. This study elucidates the basic mechanism of interfacial reaction and ion diffusion in sulfide–halide electrolytes and emphasizes the key role of electrolyte compatibility in ASSLBs failure pathways.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"48 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143583072","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}
Pub Date : 2025-03-10DOI: 10.1021/acs.nanolett.4c06487
Caifeng Wang, Ruofei Zhang, Ki-Jae Jeong, Wei Xiong, Zongran Liu, Zhengya Xie, Lin Hou, Jianxiao Gong, Zheng Lian, Mali Zu, Kelong Fan, Tianjiao Ji
Regenerating functional bone tissue in critical-sized defects remains a formidable issue. Bone-tissue engineering (BTE) scaffolds are emerging as potential alternatives to bone transplantation for the repair of bone defects. However, developing BTE scaffolds with unique bone-healing properties and natural bone porous structure is challenging. Herein, we presented a biomimetic scaffold with hierarchical porosity via a solvent casting/particulate leaching method. The scaffold comprises osteoinductive whitlockite (WH) nanoparticles evenly dispersed in a poly(lactic-co-glycolic acid) (PLGA) matrix. Highly interconnected pores with hierarchical variations are present in the scaffold, enabling superior solution diffusion and compressive strength. Notably, the WH/PLGA scaffold effectively promoted osteoblast differentiation in vitro and induced bone formation in rat tibia defects, surpassing the performance of both the hydroxyapatite (HAP)/PLGA scaffold and the PLGA scaffold. This study provides a low-cost, facile, and scalable strategy for fabricating BTE scaffolds with favorable mechanical properties, biocompatibility, and bone repair capability.
{"title":"Fabrication of a Whitlockite/PLGA Scaffold with Hierarchical Porosity for Bone Repair","authors":"Caifeng Wang, Ruofei Zhang, Ki-Jae Jeong, Wei Xiong, Zongran Liu, Zhengya Xie, Lin Hou, Jianxiao Gong, Zheng Lian, Mali Zu, Kelong Fan, Tianjiao Ji","doi":"10.1021/acs.nanolett.4c06487","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c06487","url":null,"abstract":"Regenerating functional bone tissue in critical-sized defects remains a formidable issue. Bone-tissue engineering (BTE) scaffolds are emerging as potential alternatives to bone transplantation for the repair of bone defects. However, developing BTE scaffolds with unique bone-healing properties and natural bone porous structure is challenging. Herein, we presented a biomimetic scaffold with hierarchical porosity via a solvent casting/particulate leaching method. The scaffold comprises osteoinductive whitlockite (WH) nanoparticles evenly dispersed in a poly(lactic-<i>co</i>-glycolic acid) (PLGA) matrix. Highly interconnected pores with hierarchical variations are present in the scaffold, enabling superior solution diffusion and compressive strength. Notably, the WH/PLGA scaffold effectively promoted osteoblast differentiation <i>in vitro</i> and induced bone formation in rat tibia defects, surpassing the performance of both the hydroxyapatite (HAP)/PLGA scaffold and the PLGA scaffold. This study provides a low-cost, facile, and scalable strategy for fabricating BTE scaffolds with favorable mechanical properties, biocompatibility, and bone repair capability.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"38 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143583034","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}
Pub Date : 2025-03-10DOI: 10.1021/acs.nanolett.5c00408
Yu-Wei Sun, Zhan-Wei Li
Plasmonic nanohelix arrays, exhibiting strong circular dichroism, are among the most promising optical chiral metamaterials. However, achieving chiral plasmonic effects in the visible range remains challenging with current manufacturing techniques, as it requires structures small enough to resonate at visible wavelengths. Herein, we propose a novel strategy for constructing nanohelix arrays through patch-enthalpy-driven self-confined self-assembly of Janus nanoparticles. The hexagonal columnar structures, self-assembled from Janus nanoparticles, create a cylindrical self-confined environment within each column, where patch-enthalpy drives the particles to form helical structures. Numerical simulations reveal that patch-enthalpy induces the sequential formation of helical structures within each column, from multiple helices to double helix and finally to single helix. Additionally, optical property calculations demonstrate that these nanohelix arrays exhibit giant circular dichroism and high g-factors at visible frequencies. Our proposed construction strategy offers a promising route for developing optical chiral metamaterials through patch-enthalpy-driven self-confined self-assembly of Janus nanoparticles.
表现出强烈圆二色性的等离子纳米螺旋阵列是最有前途的光学手性超材料之一。然而，要在可见光范围内实现手性质子效应，目前的制造技术仍具有挑战性，因为它需要足够小的结构才能在可见光波长下产生共振。在此，我们提出了一种通过贴片焓驱动 Janus 纳米粒子自封闭自组装来构建纳米螺旋阵列的新策略。由 Janus 纳米粒子自组装而成的六边形柱状结构在每个柱状结构内形成了一个圆柱形的自封闭环境，贴片焓驱动粒子在该环境中形成螺旋结构。数值模拟显示，贴片焓促使螺旋结构在每个柱内依次形成，从多螺旋到双螺旋，最后到单螺旋。此外，光学特性计算表明，这些纳米螺旋阵列在可见光频率下表现出巨型圆二色性和高 g 因子。我们提出的构建策略为通过贴片焓驱动的 Janus 纳米粒子自约束自组装来开发光学手性超材料提供了一条前景广阔的途径。
{"title":"Nanohelix Arrays with Giant Circular Dichroism through Patch-Enthalpy-Driven Self-Confined Self-Assembly of Janus Nanoparticles","authors":"Yu-Wei Sun, Zhan-Wei Li","doi":"10.1021/acs.nanolett.5c00408","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c00408","url":null,"abstract":"Plasmonic nanohelix arrays, exhibiting strong circular dichroism, are among the most promising optical chiral metamaterials. However, achieving chiral plasmonic effects in the visible range remains challenging with current manufacturing techniques, as it requires structures small enough to resonate at visible wavelengths. Herein, we propose a novel strategy for constructing nanohelix arrays through patch-enthalpy-driven self-confined self-assembly of Janus nanoparticles. The hexagonal columnar structures, self-assembled from Janus nanoparticles, create a cylindrical self-confined environment within each column, where patch-enthalpy drives the particles to form helical structures. Numerical simulations reveal that patch-enthalpy induces the sequential formation of helical structures within each column, from multiple helices to double helix and finally to single helix. Additionally, optical property calculations demonstrate that these nanohelix arrays exhibit giant circular dichroism and high g-factors at visible frequencies. Our proposed construction strategy offers a promising route for developing optical chiral metamaterials through patch-enthalpy-driven self-confined self-assembly of Janus nanoparticles.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"1 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143583038","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}
Pub Date : 2025-03-10DOI: 10.1021/acs.nanolett.5c00201
John Cenker, Jordan Fonseca, Mai Nguyen, Chaowei Hu, Daniel G. Chica, Takashi Taniguchi, Kenji Watanabe, Xiaoyang Zhu, Xavier Roy, Jiun-Haw Chu, Xiaodong Xu
Atomically thin van der Waals materials provide a highly tunable platform for exploring emergent quantum phenomena in solid state systems. Due to their remarkable mechanical strength, one enticing tuning knob is strain. However, the weak strain transfer of graphite and hBN, which are standard components of high-quality vdW devices, poses fundamental challenges for high-strain experiments. Here, we investigate strain transmission in less-explored orthorhombic crystals and find robust transmission up to several percent at cryogenic temperatures. We further show that strain can be efficiently transferred through these crystals to other 2D materials in traditional heterostructure devices. Using this capability, we demonstrate in situ strain and gate control of the optical properties of monolayer WS2 utilizing the high-κ dielectric insulator Bi2SeO5 as a substrate. These results enable the exploration of combined cryo-strain and gate tuning in a variety of layered systems such as moiré heterostructures, air-sensitive 2D magnets and superconductors, and any gated 2D device.
{"title":"Engineering Robust Strain Transmission in van der Waals Heterostructure Devices","authors":"John Cenker, Jordan Fonseca, Mai Nguyen, Chaowei Hu, Daniel G. Chica, Takashi Taniguchi, Kenji Watanabe, Xiaoyang Zhu, Xavier Roy, Jiun-Haw Chu, Xiaodong Xu","doi":"10.1021/acs.nanolett.5c00201","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c00201","url":null,"abstract":"Atomically thin van der Waals materials provide a highly tunable platform for exploring emergent quantum phenomena in solid state systems. Due to their remarkable mechanical strength, one enticing tuning knob is strain. However, the weak strain transfer of graphite and hBN, which are standard components of high-quality vdW devices, poses fundamental challenges for high-strain experiments. Here, we investigate strain transmission in less-explored orthorhombic crystals and find robust transmission up to several percent at cryogenic temperatures. We further show that strain can be efficiently transferred through these crystals to other 2D materials in traditional heterostructure devices. Using this capability, we demonstrate in situ strain and gate control of the optical properties of monolayer WS<sub>2</sub> utilizing the high-κ dielectric insulator Bi<sub>2</sub>SeO<sub>5</sub> as a substrate. These results enable the exploration of combined cryo-strain and gate tuning in a variety of layered systems such as moiré heterostructures, air-sensitive 2D magnets and superconductors, and any gated 2D device.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"54 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143583040","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}
Real-time and precise evaluation of human body temperature offers crucial insights for health monitoring and disease diagnosis, while integration of high-performance and miniaturized sensors remains a challenge. Inspired by the thermal sensory pathway of skin, here we developed a new route for scalable fabrication of rapid-response and miniaturized thermoreceptor sensors using self-aligned in-plane silicon nanowire (SiNW) arrays as sensitive channels. These SiNW arrays, with a diameter of 100 ± 14 nm, were integrated into temperature sensors with a density of 445 devices/cm2 without using any high-precision lithography. The sensors exhibited an excellent temperature coefficient of resistance of −1.8%/°C, enabling the precise spatial identification of heat sources. They achieved real-time monitoring of temperature changes during breathing and blowing activities, with a rapid response time of ∼0.2 s and recovery time of ∼1 s. This study provides a robust foundation for the integration of advanced miniaturized temperature sensors for biological monitoring applications.
{"title":"Skin-Inspired Self-Aligned Silicon Nanowire Thermoreceptors for Rapid and Continuous Temperature Monitoring","authors":"Zongguang Liu, Rongrong Yuan, Shuyi Wang, Wei Liao, Lei Yan, Ruijin Hu, Jianmei Chen, Linwei Yu","doi":"10.1021/acs.nanolett.4c05235","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c05235","url":null,"abstract":"Real-time and precise evaluation of human body temperature offers crucial insights for health monitoring and disease diagnosis, while integration of high-performance and miniaturized sensors remains a challenge. Inspired by the thermal sensory pathway of skin, here we developed a new route for scalable fabrication of rapid-response and miniaturized thermoreceptor sensors using self-aligned in-plane silicon nanowire (SiNW) arrays as sensitive channels. These SiNW arrays, with a diameter of 100 ± 14 nm, were integrated into temperature sensors with a density of 445 devices/cm<sup>2</sup> without using any high-precision lithography. The sensors exhibited an excellent temperature coefficient of resistance of −1.8%/°C, enabling the precise spatial identification of heat sources. They achieved real-time monitoring of temperature changes during breathing and blowing activities, with a rapid response time of ∼0.2 s and recovery time of ∼1 s. This study provides a robust foundation for the integration of advanced miniaturized temperature sensors for biological monitoring applications.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"19 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143583031","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}
Constructing mechanically strong and environmentally stable nanofluidic fibers with excellent ion transport remains a challenge. Herein, we design a mechanically robust and stable aramid nanofiber/carboxylated aramid nanofiber (ANF/cANF) hybrid nanofluidic fiber with a high ionic conductivity via a wet spinning-induced orientation strategy. Benefiting from the oriented structure and strong interfacial interactions of the filaments, the ANF/cANF nanofluidic fiber exhibits a high tensile strength of 276.8 MPa. Carboxylation and oriented nanochannels dramatically reduce the charge transfer resistance, resulting in a high ionic conductivity. As a result, the ANF/cANF nanofluidic fiber obtains a 5-fold increase in ionic conductivity compared to that of the disordered fiber. Notably, the nanofluidic fiber maintains its structural integrity and mechanical properties after 90 days of immersion in water. Additionally, it retains its favorable surface-charge-dominated ion transport capabilities even under extreme conditions, including exposure to acids, alkalis, and ethanol, as well as after treatments at high (150 °C) and low (−196 °C) temperatures.
{"title":"A Mechanically Robust, Extreme Environment-Stable, and Fast Ion Transport Nanofluidic Fiber","authors":"Lianmeng Si, Rui Song, Hong Xiao, Wensi Xing, Yiju Li, Yibo Wang, Xu Liang, Jianwei Song, Shengping Shen","doi":"10.1021/acs.nanolett.5c00097","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c00097","url":null,"abstract":"Constructing mechanically strong and environmentally stable nanofluidic fibers with excellent ion transport remains a challenge. Herein, we design a mechanically robust and stable aramid nanofiber/carboxylated aramid nanofiber (ANF/cANF) hybrid nanofluidic fiber with a high ionic conductivity via a wet spinning-induced orientation strategy. Benefiting from the oriented structure and strong interfacial interactions of the filaments, the ANF/cANF nanofluidic fiber exhibits a high tensile strength of 276.8 MPa. Carboxylation and oriented nanochannels dramatically reduce the charge transfer resistance, resulting in a high ionic conductivity. As a result, the ANF/cANF nanofluidic fiber obtains a 5-fold increase in ionic conductivity compared to that of the disordered fiber. Notably, the nanofluidic fiber maintains its structural integrity and mechanical properties after 90 days of immersion in water. Additionally, it retains its favorable surface-charge-dominated ion transport capabilities even under extreme conditions, including exposure to acids, alkalis, and ethanol, as well as after treatments at high (150 °C) and low (−196 °C) temperatures.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"49 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143583036","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}
Pub Date : 2025-03-10DOI: 10.1021/acs.nanolett.4c06699
Wei Zhou, Shaojie Ma, Ruimin Gao, Yufu Tang, Hui Zhang, Ao Liang, Mengsi Yang, Chun Ma, Quli Fan, Xian-En Zhang, Feng Li
Oxygen permeability is a critical property of protein nanocages (PNCs) that impacts or dictates the functions of PNCs. However, it remains challenging to determine it experimentally. Here, we report compartmentalized oxygen sensing inside PNCs by assembling matryoshka-type structures through interfacial engineering, namely, one PNC containing another smaller one functionalized with small-molecule oxygen probes. Oxygen in the lumen of the outer PNCs can be probed conveniently via phosphorescence spectrometry. This method enabled the analysis of two representative PNCs, MS2 virus-like particles and Thermotoga maritima encapsulin, revealing the former is oxygen permeable, while the latter is oxygen impermeable. This study establishes a general approach for measuring the oxygen permeability of PNC shells, which can provide an experimental basis for understanding the working mechanisms of PNCs and inspire applications like oxygen-sensitive or oxygen-responsive sensing, catalysis, and delivery. Also, the tunable nested PNCs may serve as platforms for designing hierarchical or compartmentalized devices or organelles.
{"title":"Assembly of Matryoshka-Type Protein Nanocages for Compartmentalized Oxygen Sensing","authors":"Wei Zhou, Shaojie Ma, Ruimin Gao, Yufu Tang, Hui Zhang, Ao Liang, Mengsi Yang, Chun Ma, Quli Fan, Xian-En Zhang, Feng Li","doi":"10.1021/acs.nanolett.4c06699","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c06699","url":null,"abstract":"Oxygen permeability is a critical property of protein nanocages (PNCs) that impacts or dictates the functions of PNCs. However, it remains challenging to determine it experimentally. Here, we report compartmentalized oxygen sensing inside PNCs by assembling matryoshka-type structures through interfacial engineering, namely, one PNC containing another smaller one functionalized with small-molecule oxygen probes. Oxygen in the lumen of the outer PNCs can be probed conveniently via phosphorescence spectrometry. This method enabled the analysis of two representative PNCs, MS2 virus-like particles and <i>Thermotoga maritima</i> encapsulin, revealing the former is oxygen permeable, while the latter is oxygen impermeable. This study establishes a general approach for measuring the oxygen permeability of PNC shells, which can provide an experimental basis for understanding the working mechanisms of PNCs and inspire applications like oxygen-sensitive or oxygen-responsive sensing, catalysis, and delivery. Also, the tunable nested PNCs may serve as platforms for designing hierarchical or compartmentalized devices or organelles.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"56 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143583035","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}
Pub Date : 2025-03-10DOI: 10.1021/acs.nanolett.4c06181
Jie Liu, Jian-Hui Jia, Li-Bo Chen, Huan Meng, Qing Ran, Hang Shi, Gao-Feng Han, Tong-Hui Wang, Zi Wen, Xing-You Lang, Qing Jiang
Zinc metal is an attractive anode material of aqueous batteries, but its practical use is persistently hampered by irregular zinc electrodeposition/dissolution and parasitic side reactions. Here we report engineering copper-zinc alloy with a composition- and structure-gradient nanoporous architecture as an effective strategy to regulate high-efficiency and dendrite-free zinc electrodeposition/dissolution for high-performance aqueous zinc-ion batteries. The dual-gradient nanoporous copper-zinc alloy electrodes not only guarantee electron and ion transport pathways but work as host materials with abundant zincophilic sites to guide zinc nucleation and deposition, enabling highly reversible zinc plating/stripping behaviors with low and stable voltage polarizations at various current densities and an ultralong lifespan of >6700 h. When assembled with carbon cloth-supported ZnxV2O5 cathode material, these outstanding electrochemical properties allow zinc-metal battery full cells to show exceptional rate capability and excellent stability. The capacity is retained at ∼95% after 5000 cycles at 5 A g-1, along with a Coulombic efficiency of ∼99.5%.
{"title":"Gradient Nanoporous Copper-Zinc Alloy Regulating Dendrite-Free Zinc Electrodeposition for High-Performance Aqueous Zinc-Ion Batteries.","authors":"Jie Liu, Jian-Hui Jia, Li-Bo Chen, Huan Meng, Qing Ran, Hang Shi, Gao-Feng Han, Tong-Hui Wang, Zi Wen, Xing-You Lang, Qing Jiang","doi":"10.1021/acs.nanolett.4c06181","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c06181","url":null,"abstract":"<p><p>Zinc metal is an attractive anode material of aqueous batteries, but its practical use is persistently hampered by irregular zinc electrodeposition/dissolution and parasitic side reactions. Here we report engineering copper-zinc alloy with a composition- and structure-gradient nanoporous architecture as an effective strategy to regulate high-efficiency and dendrite-free zinc electrodeposition/dissolution for high-performance aqueous zinc-ion batteries. The dual-gradient nanoporous copper-zinc alloy electrodes not only guarantee electron and ion transport pathways but work as host materials with abundant zincophilic sites to guide zinc nucleation and deposition, enabling highly reversible zinc plating/stripping behaviors with low and stable voltage polarizations at various current densities and an ultralong lifespan of >6700 h. When assembled with carbon cloth-supported Zn<sub><i>x</i></sub>V<sub>2</sub>O<sub>5</sub> cathode material, these outstanding electrochemical properties allow zinc-metal battery full cells to show exceptional rate capability and excellent stability. The capacity is retained at ∼95% after 5000 cycles at 5 A g<sup>-1</sup>, along with a Coulombic efficiency of ∼99.5%.</p>","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":" ","pages":""},"PeriodicalIF":9.6,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143595943","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}
Smart surfaces with switchable adhesion have garnered significant attention in wearable devices, robotics, and biological detection. However, achieving universal switchable adhesion at both solid and liquid interfaces is still challenging. Here, we report a thermo-induced biomimetic switchable slippery interface (TBSSI) with robust solid and liquid adhesion, inspired by octopus tentacles and slippery mussels. Relying on femtosecond laser drilling on soft PDMS sheets and the infusion of phase-change paraffin, a smart surface of the TBSSI is fabricated. Liquid adhesion is achieved at room temperature, while solid adhesion is achieved through the phase transition of paraffin excited by Joule heating, exhibiting a robust adhesion strength of ≈142 kPa. Mechanical abrasion tests demonstrate the exceptional self-repairing capability and excellent retainability of the surface adhesion strength. This work should provide new insights into the designs of universal adhesive surfaces and advance related fields, such as ultrafast laser microfabrication and soft robotics.
{"title":"Thermo-Induced Biomimetic Switchable Slippery Interfaces with Strong Dual-Phase Adhesion via Femtosecond Laser Fabrication","authors":"Yansheng Yao, Jianwei Zhou, Suwan Zhu, Yubin Peng, Jiale Yong, Dong Wu","doi":"10.1021/acs.nanolett.4c05723","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c05723","url":null,"abstract":"Smart surfaces with switchable adhesion have garnered significant attention in wearable devices, robotics, and biological detection. However, achieving universal switchable adhesion at both solid and liquid interfaces is still challenging. Here, we report a thermo-induced biomimetic switchable slippery interface (TBSSI) with robust solid and liquid adhesion, inspired by octopus tentacles and slippery mussels. Relying on femtosecond laser drilling on soft PDMS sheets and the infusion of phase-change paraffin, a smart surface of the TBSSI is fabricated. Liquid adhesion is achieved at room temperature, while solid adhesion is achieved through the phase transition of paraffin excited by Joule heating, exhibiting a robust adhesion strength of ≈142 kPa. Mechanical abrasion tests demonstrate the exceptional self-repairing capability and excellent retainability of the surface adhesion strength. This work should provide new insights into the designs of universal adhesive surfaces and advance related fields, such as ultrafast laser microfabrication and soft robotics.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"56 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143583043","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}
Photodynamic therapy has become a promising treatment modality against many diseases, but its dilemma―the intrinsic hypoxia of solid tumors and the high oxygen dependence for generation of cytotoxic species―has seriously hampered its practical translation. Herein a binary supramolecular nanocarrier, which is composed of fluorocarbon chain-appended β-cyclodextrin as an oxygen carrier and adamantane-grafted hyaluronic acid as a cell-targeting agent, can deliver different types of photosensitizers by multiple noncovalent interactions. Superior to the alkylated counterpart, the fluorinated amphiphilic β-cyclodextrin can spontaneously form a nanoparticulate assembly and exhibit high oxygen-enrichment performance. The obtained nanoassembly can alleviate hypoxia in the tumor microenvironment and enhance the efficacy of photodynamic therapy. Remarkable phototoxicity and minimal dark toxicity are observed in the cancer cells, and meanwhile, preferential accumulation and significant cancer ablation are realized in the tumor-bearing mice. To be envisioned, this supramolecular assembly capable of efficiently carrying oxygen can be explored as a universal platform for precise phototherapeutics.
{"title":"Fluorinated Cyclodextrin Supramolecular Nanoassembly Enables Oxygen-Enriched and Targeted Photodynamic Therapy","authors":"Ya-Hui Song, Yi-Jun Gu, Zhuo Lei, Nan-Kun Li, Ying-Ming Zhang, Qilin Yu, Yu Liu","doi":"10.1021/acs.nanolett.5c00090","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c00090","url":null,"abstract":"Photodynamic therapy has become a promising treatment modality against many diseases, but its dilemma―the intrinsic hypoxia of solid tumors and the high oxygen dependence for generation of cytotoxic species―has seriously hampered its practical translation. Herein a binary supramolecular nanocarrier, which is composed of fluorocarbon chain-appended β-cyclodextrin as an oxygen carrier and adamantane-grafted hyaluronic acid as a cell-targeting agent, can deliver different types of photosensitizers by multiple noncovalent interactions. Superior to the alkylated counterpart, the fluorinated amphiphilic β-cyclodextrin can spontaneously form a nanoparticulate assembly and exhibit high oxygen-enrichment performance. The obtained nanoassembly can alleviate hypoxia in the tumor microenvironment and enhance the efficacy of photodynamic therapy. Remarkable phototoxicity and minimal dark toxicity are observed in the cancer cells, and meanwhile, preferential accumulation and significant cancer ablation are realized in the tumor-bearing mice. To be envisioned, this supramolecular assembly capable of efficiently carrying oxygen can be explored as a universal platform for precise phototherapeutics.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"20 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143575515","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}
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