Nano Letters最新文献_第3页

High-Toughness Epoxy-Based Composites with a Bioinspired Three-Dimensional Interconnected Skeleton for Photothermal Conversion Applications

IF 10.8 1区材料科学

Nano Letters Pub Date : 2024-12-20 DOI: 10.1021/acs.nanolett.4c04324

Zhiyan Zhang, Yufei Wang, Zhengzhi Mu, Wenda Song, Shuang Zhang, Jialve Sun, Hexuan Yu, Hanliang Ding, Shichao Niu, Zhiwu Han, Luquan Ren

{"title":"High-Toughness Epoxy-Based Composites with a Bioinspired Three-Dimensional Interconnected Skeleton for Photothermal Conversion Applications","authors":"Zhiyan Zhang, Yufei Wang, Zhengzhi Mu, Wenda Song, Shuang Zhang, Jialve Sun, Hexuan Yu, Hanliang Ding, Shichao Niu, Zhiwu Han, Luquan Ren","doi":"10.1021/acs.nanolett.4c04324","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c04324","url":null,"abstract":"Advanced epoxy (EP)-based composites, retaining excellent physical and mechanical properties, are in demand in many high-end devices, such as fan blades of aeroengines. However, the irreconcilable conflict between stiffness and toughness within an EP often leads to catastrophic brittle fracture. Herein, inspired by the medulla skeleton of wing feathers of Milvus migrans, bioinspired EP-based composites (BECs) were obtained via integrating functionalized three-dimensional interconnected skeleton into a brittle EP. The BEC’s fracture toughness is enhanced by 111.43%. Significantly, the maximum fracture toughness (KJC) of the BEC is 3.5 times greater than that of the EP. Moreover, under 100 mW/cm2 irradiation, the BEC can be heated from room temperature to 90 °C in 5 min, exhibiting excellent photothermal conversion capacity. The BEC expands the possible applications of conventional EP-based composites in engineering materials and energy management fields. The proposed bioinspired strategy provides a new avenue to design novel EP-based composites with strong mechanical properties and multifunction integration.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"15 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142867537","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

Fluid-Actuated Nano–Micro–Macro Structure Morphing Enables Smart Multispectrum Compatible Stealth

IF 10.8 1区材料科学

Nano Letters Pub Date : 2024-12-19 DOI: 10.1021/acs.nanolett.4c05494

Xiuyue Yang, Leilei Liang, Chen Li, Baoshan Zhang, Yue Zhao, Shujuan Tan, Guangbin Ji

{"title":"Fluid-Actuated Nano–Micro–Macro Structure Morphing Enables Smart Multispectrum Compatible Stealth","authors":"Xiuyue Yang, Leilei Liang, Chen Li, Baoshan Zhang, Yue Zhao, Shujuan Tan, Guangbin Ji","doi":"10.1021/acs.nanolett.4c05494","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c05494","url":null,"abstract":"Modern detection technology has driven camouflage technology toward multispectral compatibility and dynamic regulation. However, developing such stealth technologies is challenging due to different frequency-band principles. Here, this work proposes a design concept for a fluid-actuated multispectral compatible smart stealth device that employs a deformable mechanochromic layer/elastomer with a channeled dielectric layer. After fluid actuation, the deformable elastomer layer transmits mechanical strain to the mechanochromic layer, thereby altering the visible reflectance wavelengths in [568, 699] nm. Concurrently, the pumped-in liquid reconfigures the spatial structure parameter to alter microwave resonance and diffraction for dynamic radar absorption, enabling dynamic radar absorption with significant broadband absorption at [8.16, 18.0] GHz. Using the heat-absorption property also achieves dynamic infrared stealth, shown by a ΔT ≈ 16.5 °C temperature difference. Additionally, the device exhibits a rapid response time (∼1 s), excellent cycling performance (100 cycles), and programmability (10 codes), offering a new stealth strategy.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"13 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142849736","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

Iron Knights with Nanosword Induced Ferroptosis in the Battle Against Oral Carcinoma

IF 10.8 1区材料科学

Nano Letters Pub Date : 2024-12-19 DOI: 10.1021/acs.nanolett.4c05070

Zhijing Yang, Zhe Yang, Dongxu Wang, Yuyang Li, Ming Hao, Boqiang Tao, Qiang Feng, Han Wu, Qirong Li, Jianing Wu, Quan Lin, Guoqing Wang, Weiwei Liu

{"title":"Iron Knights with Nanosword Induced Ferroptosis in the Battle Against Oral Carcinoma","authors":"Zhijing Yang, Zhe Yang, Dongxu Wang, Yuyang Li, Ming Hao, Boqiang Tao, Qiang Feng, Han Wu, Qirong Li, Jianing Wu, Quan Lin, Guoqing Wang, Weiwei Liu","doi":"10.1021/acs.nanolett.4c05070","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c05070","url":null,"abstract":"Oral squamous cell carcinoma (OSCC) is a tumor characterized by cellular redox imbalance, rendering it particularly sensitive to ferroptosis treatment. However, traditional ferroptosis inducers have a few drawbacks. In this study, ultrasmall AuMn nanoclusters (AMNCs) with a bovine serum albumin (BSA) ligand were synthesized and encapsulated in natural killer (NK) cell-derived exosomes to form an Exo-AMNCs composite for targeted ferroptosis therapy of OSCC. Unlike previously reported alloyed metal nanoclusters, not only do AMNCs react with intracellular H2O2 to produce reactive oxygen species (ROS) and induce ferroptosis but also the BSA ligand improves biocompatibility and water solubility. These properties render AMNCs ideal for fluorescence imaging in vivo. When combined with NK cell exosomes, the Exo-AMNCs composite exhibited strong targeted imaging and therapeutic effects on OSCC. Further investigation into the mechanistic details demonstrated that Exo-AMNCs downregulate the overexpression of fat mass and obesity-associated (FTO) in OSCC and regulate the key ferroptosis-related protein glutathione peroxidase 4 (GPX4).","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"25 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857675","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

Observation of the Generalized Kerker Effect Mediated by Quasi-Bound States in the Continuum

IF 10.8 1区材料科学

Nano Letters Pub Date : 2024-12-19 DOI: 10.1021/acs.nanolett.4c05421

Ze Jing, Shuangli Li, Siyuan Ouyang, Junjian Lu, Yueke Wang, Lujun Huang, Lin Li, Tian Sang

引用次数: 0

Numerical Simulation of Light to Heat Conversion by Plasmonic Nanoheaters

IF 10.8 1区材料科学

Nano Letters Pub Date : 2024-12-19 DOI: 10.1021/acs.nanolett.4c04872

María C. Nevárez Martínez, Dominik Kreft, Maciej Grzegorczyk, Sebastian Mahlik, Magdalena Narajczyk, Adriana Zaleska-Medynska, Demosthenes P. Morales, Jennifer A. Hollingsworth, James H. Werner

{"title":"Numerical Simulation of Light to Heat Conversion by Plasmonic Nanoheaters","authors":"María C. Nevárez Martínez, Dominik Kreft, Maciej Grzegorczyk, Sebastian Mahlik, Magdalena Narajczyk, Adriana Zaleska-Medynska, Demosthenes P. Morales, Jennifer A. Hollingsworth, James H. Werner","doi":"10.1021/acs.nanolett.4c04872","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c04872","url":null,"abstract":"Plasmonic nanoparticles are widely recognized as photothermal conversion agents, i.e., nanotransducers or nanoheaters. Translation of these materials into practical applications requires quantitative analyses of their photothermal conversion efficiencies (η). However, the value of η obtained for different materials is dramatically influenced by the experimental setup and method of calculation. Here, we evaluate the most common methods for estimating η (Roper’s and Wang’s) and compare these with numerical estimates using the simulation software ANSYS. Experiments were performed with colloidal gold nanorod solutions suspended in a hanging droplet irradiated by an 808 nm diode laser and monitored by a thermal camera. The ANSYS simulations accounted for both heating and evaporation, providing η values consistent with the Wang method but higher than the Roper approach. This study details methods for estimating the photothermal efficiency and finds ANSYS to be a robust tool where experimental constraints complicate traditional methods.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"76 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142858050","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

Charge-Density-Wave Control by Adatom Manipulation and Its Effect on Magnetic Nanostructures

IF 10.8 1区材料科学

Nano Letters Pub Date : 2024-12-19 DOI: 10.1021/acs.nanolett.4c04581

Lisa M. Rütten, Eva Liebhaber, Kai Rossnagel, Katharina J. Franke

{"title":"Charge-Density-Wave Control by Adatom Manipulation and Its Effect on Magnetic Nanostructures","authors":"Lisa M. Rütten, Eva Liebhaber, Kai Rossnagel, Katharina J. Franke","doi":"10.1021/acs.nanolett.4c04581","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c04581","url":null,"abstract":"Charge-density waves (CDWs) are correlated states of matter, in which the electronic density is modulated periodically due to electronic and phononic interactions. Often, CDW phases coexist with other correlated states, such as superconductivity, spin-density waves, or Mott insulators. Controlling CDW phases may, therefore, enable the manipulation of the energy landscape of these interacting states. The transition metal dichalcogenide 2H-NbSe2 hosts both CDW order and superconductivity, with the incommensurate CDW phase resulting in different CDW-to-lattice alignments at the atomic scale. Using scanning tunneling microscopy, we position adatoms on the surface to induce reversible CDW domain switching. We show that the domain structure critically affects other local interactions, particularly the hybridization of Yu–Shiba–Rusinov states, which emerge from exchange interactions of magnetic Fe atoms with the superconductor. Our results suggest that CDW manipulation could also be used to introduce domain walls into coupled spin chains on superconductors, potentially impacting topological superconductivity.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"26 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857674","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

Near-Infrared Light Driven Reversible Photoelectrochemical Bioassay by S-Scheme All-Polymer Blends for Acetylcholinesterase Activity Monitoring

IF 10.8 1区材料科学

Nano Letters Pub Date : 2024-12-19 DOI: 10.1021/acs.nanolett.4c05417

Ying Qin, Runshi Xiao, Wentao Xu, Han Yu, Mingwang Liu, Wenhong Yang, Rong Tan, Yuanxing Chen, Jing Wen, Xiang Peng, Wenling Gu, Chengzhou Zhu, Liuyong Hu

{"title":"Near-Infrared Light Driven Reversible Photoelectrochemical Bioassay by S-Scheme All-Polymer Blends for Acetylcholinesterase Activity Monitoring","authors":"Ying Qin, Runshi Xiao, Wentao Xu, Han Yu, Mingwang Liu, Wenhong Yang, Rong Tan, Yuanxing Chen, Jing Wen, Xiang Peng, Wenling Gu, Chengzhou Zhu, Liuyong Hu","doi":"10.1021/acs.nanolett.4c05417","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c05417","url":null,"abstract":"Photoelectrochemical (PEC) biosensing, recognized for its heightened sensitivity, faces limitations in its application for in vivo diagnosis due to the inefficiency of UV–visible light-driven photoactive materials in nontransparent biological samples. In this study, we investigate the potential of an S-scheme all-polymer heterojunction comprising a prototype nonfullerene polymeric acceptor (PYIT) and carbon nitride to develop a near-infrared (NIR) light-driven PEC biosensor for monitoring acetylcholinesterase activity in nontransparent human whole blood. The distinct molecular structure of PYIT enables efficient light absorption in the NIR region, enhancing sensitivity in nontransparent biological samples. The biosensor functions via a proton-dependent conversion mechanism between PYIT-OH and PYIT, leveraging the selective and reversible chemical reactivity of the moieties in backbone, eliminating the need for traditional and intricate integration of a biorecognition unit. Our findings demonstrate a direct correlation between variations in photoelectric performance and acetylcholinesterase concentration, showcasing exceptional sensitivity, selectivity, and reversibility.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"1 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142849729","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

Ultrathin BIC Metasurfaces Based on Ultra-Low-Loss Sb2Se3 Phase-Change Material

IF 10.8 1区材料科学

Nano Letters Pub Date : 2024-12-19 DOI: 10.1021/acs.nanolett.4c04904

Zhaoyang Xie, Chi Li, Krishna Murali, Haoyi Yu, Changxu Liu, Yiqing Lu, Stefan A. Maier, Madhu Bhaskaran, Haoran Ren

{"title":"Ultrathin BIC Metasurfaces Based on Ultra-Low-Loss Sb2Se3 Phase-Change Material","authors":"Zhaoyang Xie, Chi Li, Krishna Murali, Haoyi Yu, Changxu Liu, Yiqing Lu, Stefan A. Maier, Madhu Bhaskaran, Haoran Ren","doi":"10.1021/acs.nanolett.4c04904","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c04904","url":null,"abstract":"Ultrathin and low-loss phase-change materials (PCMs) are highly valued for their fast and effective phase transitions and applications in reconfigurable photonic chips, metasurfaces, optical modulators, sensors, photonic memories, and neuromorphic computing. However, conventional PCMs mostly suffer from high intrinsic losses in the near-infrared (NIR) region, limiting their potential for high quality factor (Q-factor) resonant metasurfaces. Here we present the design and fabrication of tunable bound states in the continuum (BIC) metasurfaces using the ultra-low-loss PCM Sb2Se3. Our BIC metasurfaces, only 25 nm thick, achieve high modulation depth and broad resonance tuning in the NIR with high Q-factors up to 130. Experimentally, we employ these BIC metasurfaces to modulate photoluminescence in rare earth-doped upconversion nanoparticles, reducing the excitation power for multiphoton photoluminescence and enabling emission polarization manipulation. This work offers a promising platform for developing active resonant metasurfaces, with broad applications including optical modulation, ultrafast switches, color filtering, and optical sensing.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"94 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142849727","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

Highly Efficient and Linearly Polarized Light Emission of Micro-LED Integrated with Double-Functional Meta-Grating

IF 10.8 1区材料科学

Nano Letters Pub Date : 2024-12-18 DOI: 10.1021/acs.nanolett.4c04914

Xuzheng Wang, Zhenhuan Tian, Shuheng Pei, Chuangcheng Xu, Qinyue Sun, Jiadong Zhang, Jieming Wei, Feng Li, Feng Yun

引用次数: 0

Real-Time Structural Dynamics at the 3D/2D Perovskite Interface in CsPbBr3/PEA2PbBr4 Nano-heterostructures CsPbBr3/PEA2PbBr4 纳米异质结构中三维/二维过氧化物界面的实时结构动态变化

IF 10.8 1区材料科学

Nano Letters Pub Date : 2024-12-18 DOI: 10.1021/acs.nanolett.4c05021

Xiayan Wu, Nithin Pathoor, Xin Xu, Shun Omagari, Toranosuke Takagi, Martin Vacha

{"title":"Real-Time Structural Dynamics at the 3D/2D Perovskite Interface in CsPbBr3/PEA2PbBr4 Nano-heterostructures","authors":"Xiayan Wu, Nithin Pathoor, Xin Xu, Shun Omagari, Toranosuke Takagi, Martin Vacha","doi":"10.1021/acs.nanolett.4c05021","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c05021","url":null,"abstract":"Three-dimensional (3D) and two-dimensional (2D) perovskite hybrid systems, known for their exceptional optoelectronic properties and stability, are revolutionizing optoelectronic materials research. However, fundamental physics of the 3D/2D interfaces and their dynamics remain poorly understood. We use fluorescence microspectroscopy to study the photoluminescence (PL) properties of 3D/2D nano-heterostructures of CsPbBr3/PEA2PbBr4 formed by postgrowth self-assembly. The in situ PL spectra uncover the presence of new structural phases, quasi-2D PEA2Csn–1PbnBr3n+1 layers of varying n, at the 3D/2D interface and demonstrate their reversible restructuring under light excitation at room temperature. The restructuring is a result of layer-by-layer cation diffusion at the epitaxial interfaces, manifested as reversible spectral shifts occurring on a time scale of seconds. Such dynamics ultimately leads to optimized distribution of the quasi-2D phases in the system for efficient energy transfer from the 2D to the 3D phases. Our findings provide new insights into controlling energy flow in 3D/2D perovskites for next-generation optoelectronic devices.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"256 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841923","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