Nanoscale最新文献_第5页

A convenient strategy for tunable quasi-WGM lasing in pyramid structures enabled by Förster resonance energy transfer. 通过Förster共振能量转移实现金字塔结构中可调谐准wgm激光的一种方便策略。

IF 6.7 3区材料科学

Nanoscale Pub Date : 2025-09-29 DOI: 10.1039/d5nr01631b

Tsung Chi Lee,Hsia Yu Lin,Yu Chuan Tsao,Guan Zhang Lu,Ya-Ping Hsieh,Yang Fang Chen

{"title":"A convenient strategy for tunable quasi-WGM lasing in pyramid structures enabled by Förster resonance energy transfer.","authors":"Tsung Chi Lee,Hsia Yu Lin,Yu Chuan Tsao,Guan Zhang Lu,Ya-Ping Hsieh,Yang Fang Chen","doi":"10.1039/d5nr01631b","DOIUrl":"https://doi.org/10.1039/d5nr01631b","url":null,"abstract":"In this study, we present a novel implementation of three-dimensional pyramid structures as optical resonators that can generate multiple quasi-whispering gallery mode (WGM) lasing sets corresponding to varying perimeter lengths along the structure's height. Polyvinyl alcohol (PVA) polymer embedded with CdSe/ZnS quantum dots (QDs) was used as the gain medium to form pyramid structures. Through optical excitation, quasi-WGM lasing was readily observed in pyramids incorporating 640 nm CdSe/ZnS QDs. To further enhance lasing performance, Förster resonance energy transfer (FRET) is employed by incorporating 540 nm CdSe/ZnS QDs as donors to enhance the emission and increase the lasing Q factor of the 640 nm CdSe/ZnS QD acceptors. The efficiency of FRET is determined to be as high as 68%, resulting in more than a fivefold enhancement of the Q factor and a substantial reduction in the quasi-WGM lasing threshold. Moreover, the unique features of pyramid resonators help us more easily observe and control height-dependent quasi-WGM behavior, which enables precise and efficient modulation of multiple quasi-WGM sets from a single microcavity. These findings may offer a valuable alternative for applications ranging from bio-imaging to optical communication.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"29 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145182824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Enhanced hydrogen evolution reaction performance of alloyed MoS1.34Se0.78 with dominant 1T/T' phases 以1T/T′相为主的MoS1.34Se0.78合金的析氢反应性能增强

IF 6.7 3区材料科学

Nanoscale Pub Date : 2025-09-27 DOI: 10.1039/d5nr02706c

Qiulan Zhou, Zhen Liu, Xiaohu Luo, Xin Qin, Weijian Xu

引用次数: 0

Recent advances in metal organic frameworks and their derivatives for laser desorption/ionization mass spectrometry in metabolic finger printing 金属有机骨架及其衍生物在代谢指纹激光解吸/电离质谱分析中的研究进展

IF 6.7 3区材料科学

Nanoscale Pub Date : 2025-09-27 DOI: 10.1039/d5nr03302k

Songrui Han, Yida Huang, Kun Qian

{"title":"Recent advances in metal organic frameworks and their derivatives for laser desorption/ionization mass spectrometry in metabolic finger printing","authors":"Songrui Han, Yida Huang, Kun Qian","doi":"10.1039/d5nr03302k","DOIUrl":"https://doi.org/10.1039/d5nr03302k","url":null,"abstract":"Metabolic fingerprinting, a key component of metabolomics, has emerged as a powerful tool for understanding disease mechanisms by mapping low-molecular-weight metabolites in biological samples. Among the various analytical methods, laser desorption/ionization mass spectrometry (LDI-MS) stands out due to its label-free, highly sensitive, and efficient approach to metabolic fingerprinting. However, LDI-MS is often hindered by issues related to desorption/ionization efficiency, prompting the development of advanced matrix materials. Metal-Organic Frameworks (MOFs) and their derivatives have demonstrated significant potential as effective matrices for LDI-MS. This minireview discusses recent advancements in MOF-based matrices, highlighting their structural characteristics, functional modifications, doping strategies and derivatives. We explore how these materials enhance the detection performance and also facilitate the underlying mechanisms of LDI-MS. Additionally, this review also covers the applications of MOF-based materials in various disease categories, including cancers, cardiovascular diseases, and metabolic disorders, illustrating their potential for disease diagnosis, subtype classification and prognosis.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"326 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145153627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Data driven approaches in nanophotonics: A review of AI-enabled metadevices 纳米光子学中的数据驱动方法：人工智能元设备综述

IF 6.7 3区材料科学

Nanoscale Pub Date : 2025-09-26 DOI: 10.1039/d5nr02043c

Huanshu Zhang, Lei Kang, Sawyer D. Campbell, Jacob Thomas Young, Douglas H. Werner

引用次数: 0

An all-solid-state Z-scheme mechanism in the enhanced photocatalytic performance of NiO-Au-ZnO triple-layer thin films. NiO-Au-ZnO三层薄膜光催化性能增强的全固态Z-scheme机制。

IF 6.7 3区材料科学

Nanoscale Pub Date : 2025-09-26 DOI: 10.1039/d5nr02583d

Lo Tuan Son,Yuta Kubota,Ken-Ichi Katsumata,Nobuhiro Matsushita

{"title":"An all-solid-state Z-scheme mechanism in the enhanced photocatalytic performance of NiO-Au-ZnO triple-layer thin films.","authors":"Lo Tuan Son,Yuta Kubota,Ken-Ichi Katsumata,Nobuhiro Matsushita","doi":"10.1039/d5nr02583d","DOIUrl":"https://doi.org/10.1039/d5nr02583d","url":null,"abstract":"Although thin-film photocatalysts offer practical advantages such as high recoverability and minimal secondary pollution, their performance is often hampered by their low surface area compared to their nanoparticle-based counterparts. This study demonstrates the fabrication of a triple-layer NiO-Au-ZnO heterostructure with significantly enhanced photocatalytic activity. The heterostructure, composed of solution-processed NiO and ZnO layers with a controlled sputtered Au interlayer, exhibits a well-defined layered architecture comprising NiO nanoparticles, a dense Au film, and ZnO nanorods. The continuity of this Au interlayer, achieved through optimized sputtering, was identified as the critical factor governing performance. The optimized NiO-Au-ZnO film demonstrates superior photocatalytic activity, achieving 98% degradation of methylene blue after 180 minutes alongside excellent reusability over multiple cycles. Comprehensive characterization using UV-vis, PL, XPS, and scavenger tests indicates that the enhancement is driven by an all-solid-state Z-scheme mechanism. Facilitated by the continuous Au interlayer, this mechanism promotes efficient charge carrier separation while preserving the strong redox potentials of the individual semiconductors. Notably, a discontinuous Au interlayer led to an unexpected decrease in photocatalytic performance, an effect that was attributed to a proposed antagonistic interaction between coexisting Z-scheme and type II p-n heterojunction pathways. This work underscores the critical importance of interface engineering and precise nanostructural control in thin-film systems for the rational design of advanced photocatalytic materials.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"100 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145140427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Laser-assisted electrohydrodynamic printing of sub-microscale 3D conductive features on low-melting-point polymeric substrates 低熔点聚合物基板上亚微尺度三维导电特征的激光辅助电流体动力打印

IF 6.7 3区材料科学

Nanoscale Pub Date : 2025-09-26 DOI: 10.1039/d5nr03296b

Jiaxin Li, Jinke Chang, Yuhua Chen, Qihang Ma, Kun Yu, Yi Ding, Dichen Li, Jiankang He

{"title":"Laser-assisted electrohydrodynamic printing of sub-microscale 3D conductive features on low-melting-point polymeric substrates","authors":"Jiaxin Li, Jinke Chang, Yuhua Chen, Qihang Ma, Kun Yu, Yi Ding, Dichen Li, Jiankang He","doi":"10.1039/d5nr03296b","DOIUrl":"https://doi.org/10.1039/d5nr03296b","url":null,"abstract":"Electrohydrodynamic (EHD) printing stands as a promising and cost-effective method for crafting intricate metallic structures at the micro/nanoscale, boasting diverse applications. Yet, conventional EHD-printed features often require high-temperature sintering (120-400°C) for conductivity, limiting their integration and application on most polymeric substrates with low melting points (<300°C). Here, we introduce an innovative laser-assisted EHD printing technique, which selectively melts the as-printed gold nanoparticles and expels residual solvents and surfactants, without damaging the substrates. This enables damage-free fabrication of highly conductive sub-microscale 3D structures on polymeric substrates at ambient temperature. Our printed features, as small as 604 ± 27 nm, exhibit a record-low resistivity of 2.54 ± 0.38 × 10-7 𝛺 ∙ 𝑚. Furthermore, we demonstrate the versatility of this approach by printing complex patterns and multimaterial structures on various substrates, including PET and human hair. The technique represents a significant advancement in EHD printing of electronics, offering exceptional precision and conductivity across diverse substrates and opening avenues for a wide array of applications in flexible electronics, biosensors, wearable devices, and biomedical implants.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"42 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145141033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Interplay of Geometry and Magnetic Coupling in Ferromagnetic Nanorings 铁磁纳米环中几何与磁耦合的相互作用

IF 6.7 3区材料科学

Nanoscale Pub Date : 2025-09-26 DOI: 10.1039/d5nr02835c

Szymon Piotr Oramus, Julius de Rojas, Jay Ross Scott, Ben Nicholson, Del Atkinson, Adekunle Adeyeye

{"title":"Interplay of Geometry and Magnetic Coupling in Ferromagnetic Nanorings","authors":"Szymon Piotr Oramus, Julius de Rojas, Jay Ross Scott, Ben Nicholson, Del Atkinson, Adekunle Adeyeye","doi":"10.1039/d5nr02835c","DOIUrl":"https://doi.org/10.1039/d5nr02835c","url":null,"abstract":"We present a systematic study of angular-dependent magnetization reversal in circular and rounded rectangular Permalloy (Ni81Fe19) nanorings, examining both isolated and strongly interacting arrays using magneto-optical Kerr effect measurements and micromagnetic simulations. Magnetic reversal behavior was analyzed by determining the magnetic fields required for vortex state (VS) nucleation (HVS1) and vortex state annihilation (HVS2). For circular rings, increased magnetostatic coupling in more closely spaced nanostructures increased HVS1 and decreased HVS2, with the most significant effects observed with applied field aligned with the inter-ring spacing. Rectangular rings exhibit pronounced configurational anisotropy, particularly with field applied near their short axis, where both isolated and coupled arrays display three-step switching behavior and a distinct, angle-dependent enhancement of the VS stable field range. This enhancement spans a broader angular range in coupled arrays and is likely facilitated by the nucleation of vortex core states in areas of high flux curvature and ring width. These findings provide new insights into geometry- and angle-dependent switching in nanorings and highlight their potential in applications such as neuromorphic computing.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"27 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145141049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Activation of lattice oxygen in a medium-entropy oxide to facilitate an enhanced oxygen evolution reaction. 中熵氧化物中点阵氧的活化促进了析氧反应的增强。

IF 6.7 3区材料科学

Nanoscale Pub Date : 2025-09-26 DOI: 10.1039/d5nr02113h

Ziqian Gao,Daqian Xiao,Houde She,Junbo Zhong,Xinheng Li,Jingwei Huang,Lei Wang,Qizhao Wang

{"title":"Activation of lattice oxygen in a medium-entropy oxide to facilitate an enhanced oxygen evolution reaction.","authors":"Ziqian Gao,Daqian Xiao,Houde She,Junbo Zhong,Xinheng Li,Jingwei Huang,Lei Wang,Qizhao Wang","doi":"10.1039/d5nr02113h","DOIUrl":"https://doi.org/10.1039/d5nr02113h","url":null,"abstract":"Aiming to overcome the low efficiency of the oxygen evolution reaction (OER) at photoanodes, this study developed a novel medium-entropy oxide catalyst for photoelectrochemical water splitting. By in situ growing medium-entropy oxides on a BiVO4 substrate to optimize the electronic structure of the catalyst, the prepared CoFeMnMoOx/BiVO4 composite photoanode exhibits excellent catalytic performance under alkaline conditions, including a remarkable photocurrent density of 5.58 mA cm-2 at 1.23 V vs. RHE, low overpotential and good stability. Additionally, the results from photoelectrochemical catalytic water splitting performance tests and DFT calculations reveal that Fe, Co and Mo sites act as active centers for the OER, the introduction of Mn increases active sites and promotes electron transfer, and the multimetallic synergistic effect enhances the d-p orbital hybridization of Mo-O bonds. After the water oxidation reaction, the lattice oxygen content in CoFeMnMoOx/BiVO4 decreases while the oxygen vacancy content increases, indicating that the lattice oxygen-mediated mechanism dominates the OER reaction pathway. This study not only improves the efficiency of PEC water splitting for hydrogen production but also demonstrates the broad application prospects of medium-entropy oxides in the field of photoelectrochemical water splitting.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"1 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145140428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 NO Molecules Adsorbed on Rh Cluster Anions at Different Temperatures Using Photoelectron Spectroscopy 不同温度下NO分子在Rh簇阴离子上吸附的光电子能谱观察

IF 6.7 3区材料科学

Nanoscale Pub Date : 2025-09-26 DOI: 10.1039/d5nr03586d

Masato Yamaguchi, Keitaro Tatsukawa, Fumitaka Mafune

引用次数: 0

Bifunctional terahertz meta-device with switchable properties between dual-narrowband absorption and broadband absorption 在双窄带吸收和宽带吸收之间具有可切换特性的双功能太赫兹元器件

IF 6.7 3区材料科学

Nanoscale Pub Date : 2025-09-25 DOI: 10.1039/d5nr01958c

Weijun Zhou, Xuefeng Qin, Youqi Zhang, Yuxuan Chen, Qian Zhao, Nianxi Xu, Ben-Xin Wang

{"title":"Bifunctional terahertz meta-device with switchable properties between dual-narrowband absorption and broadband absorption","authors":"Weijun Zhou, Xuefeng Qin, Youqi Zhang, Yuxuan Chen, Qian Zhao, Nianxi Xu, Ben-Xin Wang","doi":"10.1039/d5nr01958c","DOIUrl":"https://doi.org/10.1039/d5nr01958c","url":null,"abstract":"Metamaterial-based optical devices have attracted considerable attention due to their significant potential for applications, but they encounter numerous challenges with regard to multifunctional integration and dynamic tunability. In this paper, we propose a tunable terahertz meta-device that exhibits multifunctionality, utilizing gold and vanadium dioxide (VO₂) surface patterned structures. The electromagnetic field polarization switching enables two types of operating modes of dual-narrowband absorption and broadband absorption, achieving a dual-function absorption meta-device. Maintaining the polarization angle constant, the phase transition of VO₂ provides the ability to independently modulate the absorbance of these two types of operating modes. The physical mechanism of bifunctional terahertz absorption meta-device is elucidated through impedance matching theory and surface electric field distributions in different operating modes. Both of these operating modes have the characteristic of large-angle tolerance, and further research has been conducted on the use of dual-narrowband absorption mode for sensing applications. The merits of the aforementioned meta-device, encompassing structural simplicity, integration of multiple functions and dynamic tunability, are noteworthy and may stimulate interest in the development of powerful, compact and practical integrated terahertz components.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"15 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145134123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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