Nano LettersPub Date : 2024-11-18DOI: 10.1021/acs.nanolett.4c03982
Shu Kang, Stephen Skapek, Sunil Krishnan, Sanjiv S Gambhir, Yushun Zeng, Qifa Zhou, Raiyan Zaman
{"title":"A Novel Approach to Harnessing Acoustic A-Lines to Detect Circulating Tumor Cells in Flowing Blood.","authors":"Shu Kang, Stephen Skapek, Sunil Krishnan, Sanjiv S Gambhir, Yushun Zeng, Qifa Zhou, Raiyan Zaman","doi":"10.1021/acs.nanolett.4c03982","DOIUrl":"10.1021/acs.nanolett.4c03982","url":null,"abstract":"<p><p>Circulating tumor cells (CTCs) are associated with tumor burden and treatment response and, as hallmarks of the initiation of tumor dissemination, can predict the likelihood of metastatic progression before widespread tumors can be detected by standard anatomic imaging. However, early diagnosis of recurrence through the detection of CTCs is limited by their low prevalence in blood and the limited sensitivity of existing technologies. To address these challenges, we investigated the use of ultrasound and targeted microbubbles (MBs) for early CTC detection. While MBs have been used in cardiovascular/molecular tumor imaging, there is limited research on their acoustic properties when bound to CTCs. We developed a hydrophone system for detecting characteristic A-lines from CTCs encapsulating MBs. Our study is the first to identify distinctive characteristics in the acoustic frequency response of MBs bound to different cancer CTCs using <i>in vitro</i> suspensions and <i>in vivo</i> mice that will benefit metastatic cancer detection and management.</p>","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":" ","pages":""},"PeriodicalIF":9.6,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646497","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}
Nano LettersPub Date : 2024-11-18DOI: 10.1021/acs.nanolett.4c04251
Jinbo Pan, Yan-Fang Zhang, Yu-Yang Zhang, Shixuan Du
{"title":"Engineering Two-Dimensional Magnetic Heterostructures: A Theoretical Perspective.","authors":"Jinbo Pan, Yan-Fang Zhang, Yu-Yang Zhang, Shixuan Du","doi":"10.1021/acs.nanolett.4c04251","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c04251","url":null,"abstract":"<p><p>Two-dimensional (2D) magnetic materials have attracted great attention due to their promise for applications in future high-speed, low-energy quantum computing and memory devices. By integrating 2D magnetic materials with other magnetic or nonmagnetic materials to form heterostructures, the synergistic effects of interlayer orbital hybridization, spin-orbit coupling, and symmetry breaking can surpass the performance of single-layer materials and lead to novel physical phenomena. This review provides a comprehensive theoretical analysis of engineering 2D magnetic heterostructures, emphasizing the fundamental physics of interlayer interactions and the resulting enhancements and novel properties. It reviews the mechanisms and progress in tuning the magnetic ordering, enhancing the Curie temperature (<i>T</i><sub>c</sub>) and modulating properties such as topological magnetic structures, spin polarization, electronic band topology, valley polarization, and magnetoelectric coupling through the construction of 2D magnetic heterostructures. Additionally, this review discusses the current challenges faced by 2D magnetic heterostructures, aiming to guide the future design of higher-performance magnetic heterostructures.</p>","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":" ","pages":""},"PeriodicalIF":9.6,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646503","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}
Nano LettersPub Date : 2024-11-15DOI: 10.1021/acs.nanolett.4c04427
Hao Ding, Zhonghui Chen, Huiyu Li, Huadong Suo, Chaozhong Liu, Huanan Yu, Jingkun Yuan, Zixu Sun, Yanyan Zhu, Bo Song
{"title":"Regulating Li2S Deposition and Accelerating Conversion Kinetics through Intracavity ZnS toward Low-Temperature Lithium–Sulfur Batteries","authors":"Hao Ding, Zhonghui Chen, Huiyu Li, Huadong Suo, Chaozhong Liu, Huanan Yu, Jingkun Yuan, Zixu Sun, Yanyan Zhu, Bo Song","doi":"10.1021/acs.nanolett.4c04427","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c04427","url":null,"abstract":"The uncontrolled deposition behavior and sluggish conversion kinetics of the discharging product (solid Li<sub>2</sub>S) severely deteriorate the electrochemical performance of lithium–sulfur (Li–S) batteries, especially under high S loading and low-temperature conditions. Herein, a multifunctional S cathode host consisting of ZnS nanoparticles (NPs) confined in hollow porous carbon spheres (ZnS@HPCS) is synthesized via a unique capillary force-driven melting-diffusion strategy. The porous carbon shell of ZnS@HPCS provides a space-confined reservoir for soluble polysulfides and solid Li<sub>2</sub>S, while the intracavity ZnS NPs trap polysulfides, induce Li<sub>2</sub>S inside deposition, and accelerate conversion kinetics. Thus, Li–S batteries with ZnS@HPCS-S cathodes exhibit excellent electrochemical performance at both room and low temperatures (−40 °C) and high reversible capacities under high S loading (5.2 mg cm<sup>–2</sup>). Furthermore, Li<sub>2</sub>S nucleation/deposition, <i>in situ</i> Raman, and theoretical analyses reveal the underlying mechanism. This work offers fundamental insights into regulating Li<sub>2</sub>S deposition and designing S hosts for high-performance Li–S batteries.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"128 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142637848","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}
{"title":"Nanoscale Mapping of Carrier Distribution Regulated by Polarization in 2D FeFETs.","authors":"Shengyao Su, Yingli Zhang, Fengyuan Zhang, Chuanlai Ren, Longji Lyu, Mengkang Xu, Changjian Li, Boyuan Huang","doi":"10.1021/acs.nanolett.4c03962","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c03962","url":null,"abstract":"<p><p>The emergence of 2D ferroelectrics, sliding ferroelectrics, and 2D ferroelectric semiconductors has greatly expanded the potential applications of two-dimensional ferroelectric field-effect transistors (2D FeFETs) in nonvolatile memory, neuromorphic synapses, and negative capacitance. However, the interaction between ferroelectric and semiconductor layers remains not well understood, and characterization methods to correlate carriers and polarization dynamics at the nanoscale are still lacking. Utilizing in situ scanning microwave impedance microscopy and piezoresponse force microscopy measurements, we employed a Pb(Zr<sub>0.2</sub>Ti<sub>0.8</sub>)O<sub>3</sub>/MoS<sub>2</sub>-based 2D FeFET as an example to reveal, with high spatial resolution, the microscopic redistribution of carriers. This study uncovers the microscopic behavior of ferroelectric-semiconductor heterojunctions, paving the way for a deeper understanding of ferroelectric-gating effects and retention issues at the nanoscale in 2D FeFETs.</p>","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":" ","pages":""},"PeriodicalIF":9.6,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142638125","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}
Nano LettersPub Date : 2024-11-15DOI: 10.1021/acs.nanolett.4c03715
Xiaoqiuyan Zhang, Xin Zhang, Zhuocheng Zhang, Tianyu Zhang, Xingxing Xu, Fu Tang, Jing Yang, Jiakun Wang, Hui Jiang, Zhaoyun Duan, Yanyu Wei, Yubin Gong, Hui Zhang, Peining Li, Min Hu
{"title":"Time-Domain-Filtered Terahertz Nanoscopy of Intrinsic Light–Matter Interactions","authors":"Xiaoqiuyan Zhang, Xin Zhang, Zhuocheng Zhang, Tianyu Zhang, Xingxing Xu, Fu Tang, Jing Yang, Jiakun Wang, Hui Jiang, Zhaoyun Duan, Yanyu Wei, Yubin Gong, Hui Zhang, Peining Li, Min Hu","doi":"10.1021/acs.nanolett.4c03715","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c03715","url":null,"abstract":"Terahertz (THz) technology holds great potential across diverse applications, including biosensing and information communications, but conventional far-field techniques are limited by diffraction. Near-field optical microscopy overcomes this barrier through a sharp tip that concentrates incident THz waves into nanometric volumes, detecting scattered near-field to reveal nanoscale optical properties. However, owing to the large THz wavelengths, resonant surface waves arising on the tip and cantilever obscure the intrinsic response. Here we combine near-field microscopy with THz time-domain spectroscopy and implement time-domain filtering with an elongated cantilever to eliminate this artifact, achieving intrinsic nanospectroscopy and nanoimaging. By applying this technique, we distinguish and characterize historical pigments of an ancient sculpture, such as vermilion and red lead, on the nanoscale. We also unravel deep-subwavelength localized resonance modes in THz optical antennas, demonstrating capabilities for THz nanophotonics. Our work advances THz nanoimaging and nanospectroscopy techniques to probe intrinsic nanoscale THz light-matter interactions.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"62 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142637659","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}
{"title":"Self-Rectifying Memristor-Based Reservoir Computing for Real-Time Intrusion Detection in Cybersecurity.","authors":"Guobin Zhang, Zijian Wang, Xuemeng Fan, Pengtao Li, Dawei Gao, Zhenyong Zhang, Qing Wan, Yishu Zhang","doi":"10.1021/acs.nanolett.4c04385","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c04385","url":null,"abstract":"<p><p>The increasing sophistication of cybersecurity threats, driven by the proliferation of big data and the Internet of Things (IoT), necessitates the development of advanced real-time intrusion detection systems (IDSs). In this study, we present a novel approach that integrates NiO-doped WO<sub>3-<i>x</i></sub>/ZnO bilayer self-rectifying memristors (SRMs) within a reservoir computing (RC) framework for IDS applications. The proposed crossbar array architecture exploits the exceptional dynamic properties of SRMs, achieving a classification accuracy of 93.07% on the CSE-CIC-IDS2018 data set, while demonstrating ultrahigh information-processing efficiency. Our approach not only leverages the tunable characteristics of memristors but also addresses the challenge of sneak path currents in large-scale integration, offering a robust and scalable solution for next-generation IDS. This work exemplifies the power of emerging electronics in enhancing cybersecurity through innovative hardware implementations.</p>","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":" ","pages":""},"PeriodicalIF":9.6,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142638127","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}
{"title":"Water-Vapor-Triggered Dual-Mode Optical Responses in Rare-Earth-Doped Hollow Nanospheres.","authors":"Hongji Huang, Zixian Chen, Hanqi Zheng, Yingyi Ou, Jianing Zhang, Kang Xiao, Jinqing Huang, Zhao-Qing Liu, Yibo Chen","doi":"10.1021/acs.nanolett.4c03714","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c03714","url":null,"abstract":"<p><p>Multimode responsive optical materials are garnering ever-increasing attention due to their diverse applications. This work showcases a film assembled with rare-earth-doped CaF<sub>2</sub> hollow nanospheres that exhibit water-vapor-triggered dual-mode optical responses. Upon exposure to flowing water vapor, the film rapidly (less than 1.5 s for a 7.7 μm thickness) transitions to a transparent state and simultaneously undergoes a sharp decrease in the photoluminescence intensity. Both of these changes fully reverse upon water evaporation, demonstrating an impressive reversibility over at least 200 cycles. The water-vapor-induced dual-mode responses are attributed to the altered incident light propagation path stemming from the similar refractive indices between CaF<sub>2</sub> and water, coupled with the water-induced energy loss of the rare-earth ions. The fabrication of encryption patterns displaying separate signals in multiple channels, as well as the demonstration of noncontact sensing for water vapor distribution, underscore the promising application potential of this dual-mode responsive system.</p>","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":" ","pages":""},"PeriodicalIF":9.6,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142638129","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}
Nano LettersPub Date : 2024-11-15DOI: 10.1021/acs.nanolett.4c04640
Zhiyang Zhang, Yanzhou Wu, Xin Cao, Junpeng Gao, Shuoyang Yan, Shuang Su, Yixuan Wu, Na Zhou, Xiaoyan Wang, Lingxin Chen
{"title":"Highly Monodisperse Stable Gold Nanorod Powder for Optical Sensor","authors":"Zhiyang Zhang, Yanzhou Wu, Xin Cao, Junpeng Gao, Shuoyang Yan, Shuang Su, Yixuan Wu, Na Zhou, Xiaoyan Wang, Lingxin Chen","doi":"10.1021/acs.nanolett.4c04640","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c04640","url":null,"abstract":"Gold nanorods (GNRs) as plasmonic metal nanoparticles are valuable for optical applications due to their tunable plasmonic properties. However, conventional colloidal GNRs face significant optical instability during storage, which limits their practical use. In this work, we developed a highly dispersible GNR powder using an octadecyl trimethylammonium bromide (C<sub>18</sub>TAB)-assisted freeze-drying method, preserving the optical and chemical sensing properties of GNRs for over 4 months. Compared with C<sub>16</sub>TAB, C<sub>18</sub>TAB significantly enhances the GNRs dispersibility even at lower concentrations. Our study demonstrates that C<sub>18</sub>TAB forms a sponge-like crystal structure that prevents aggregation during the freeze-drying process. The resulting GNR powder retains its plasmonic features and water dispersibility, achieving near-identical optical properties to those of fresh GNR solutions. This stability enabled creation of a liquid-free colorimetric test kit with a long shelf life. This work marks a significant step forward in the use of GNRs as standard analytical reagents, opening new avenues for real-world applications.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"21 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142637657","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}
Nano LettersPub Date : 2024-11-15DOI: 10.1021/acs.nanolett.4c04018
Xiaohan Cai, Hao Xu, Cong Ma, Jiale Zheng, Ke Yue, Juxin Yue, Yao Wang, Jianwei Nai, Jianmin Luo, Huadong Yuan, Shihui Zou, Xinyong Tao, Yujing Liu
{"title":"Identifying the Role of Interfacial Long-Range Order in Regulating the Solid Electrolyte Interphase in Lithium Metal Batteries.","authors":"Xiaohan Cai, Hao Xu, Cong Ma, Jiale Zheng, Ke Yue, Juxin Yue, Yao Wang, Jianwei Nai, Jianmin Luo, Huadong Yuan, Shihui Zou, Xinyong Tao, Yujing Liu","doi":"10.1021/acs.nanolett.4c04018","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c04018","url":null,"abstract":"<p><p>The self-assembled monolayer (SAM) technique, known for its customizable molecular segments and active end groups, is widely recognized as a powerful tool for regulating the interfacial properties of high-energy-density lithium metal batteries. However, it remains unclear how the degree of long-range order in SAMs affects the solid electrolyte interphase (SEI). In this study, we precisely controlled the hydrolysis of silanes to construct monolayers with varying degrees of long-range order and investigated their effects on the SEI nanostructure and lithium anode performance. The results indicate that the degree of long-range order in SAMs significantly influences the decomposition kinetics of the carbon-fluorine bond in lithium bis(trifluoromethanesulfonyl)imide (LiTFSI), promoting the formation of a LiF-rich SEI and profoundly affecting the long-term stability of the highly sensitive anode during electrochemical processes. These findings provide new insights and directions for the molecular design of SAMs tailored for long-lasting lithium metal interfaces.</p>","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":" ","pages":""},"PeriodicalIF":9.6,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142638122","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}
Nano LettersPub Date : 2024-11-15DOI: 10.1021/acs.nanolett.4c04969
Jiaqi Xu, Xueke Wu, Yunrui Li, Siming Zhao, Fan Lan, Aike Xi, Ya Huang, Yilin Ding, Rufan Zhang
{"title":"High-Performance Radiative Cooling Sunscreen","authors":"Jiaqi Xu, Xueke Wu, Yunrui Li, Siming Zhao, Fan Lan, Aike Xi, Ya Huang, Yilin Ding, Rufan Zhang","doi":"10.1021/acs.nanolett.4c04969","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c04969","url":null,"abstract":"Radiative cooling is a zero-energy-consumption cooling technology that shows great potential for outdoor human thermal management. To keep human skin comfortable in hot days, we herein develop a radiative cooling (RC) sunscreen that exhibits a low ultraviolet (UV) transmissivity (4.86%), a high solar reflectivity (90.19%), and a high mid-infrared emissivity (92.09%) to effectively provide both UV protection and skin cooling. As a result, the RC sunscreen exhibits a high cooling performance for decreasing the human skin temperature by 2.3–6.1 °C more than commercial sunscreens and 4.2–6.0 °C more than bare skin in a variety of outdoor scenarios in summer (e.g., low-humidity sunny days, high-humidity sunny days, and high-humidity cloudy days). In addition, the RC sunscreen also shows a good UV stability (12 h, 125 W), a high water resistance (106°), a long working life (30 days), and a good biocompatibility, thereby exhibiting promising commercial potentials in the sunscreen market.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"75 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142637658","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}