Nano Letters最新文献_第3页

Dynamic Structure Evolution under Invariant Lattice Framework in Fluorite-Type Ferroelectrics. 萤石型铁电体不变晶格框架下的动态结构演化。

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-10-01 DOI: 10.1021/acs.nanolett.5c03512

Yunzhe Zheng,Heng Yu,Tianjiao Xin,Kan-Hao Xue,Yilin Xu,Zhaomeng Gao,Cheng Liu,Qiwendong Zhao,Yonghui Zheng,Xiangshui Miao,Yan Cheng

{"title":"Dynamic Structure Evolution under Invariant Lattice Framework in Fluorite-Type Ferroelectrics.","authors":"Yunzhe Zheng,Heng Yu,Tianjiao Xin,Kan-Hao Xue,Yilin Xu,Zhaomeng Gao,Cheng Liu,Qiwendong Zhao,Yonghui Zheng,Xiangshui Miao,Yan Cheng","doi":"10.1021/acs.nanolett.5c03512","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c03512","url":null,"abstract":"Insightful design of HfO2-based ferroelectric (FE) devices for encoding and storage necessitates a comprehensive understanding of the dynamics governing structure evolution. However, conclusive experimental evidence remains limited. Here, by in situ biasing directly on the TiN/Hf0.5Zr0.5O2/TiN FE capacitors and combining theoretical calculations, we reveal the atomic-scale domain structure evolution via a transient polar orthorhombic (O)-Pmn21-like configuration. Direct atomic evidence demonstrates that the antipolar O-Pbca phase could transform into the FE O-Pbc21 phase under electric fields, and the polar axis of the FE phase aligns toward the bias direction through a ferroelastic transformation, thereby enhancing FE polarization. As the bias increases, the polar axis collapses, leading to FE degradation. Throughout the process of domain structure evolution, the lattice framework retains its integrity without alteration. These insights into the intricate structure evolution under electrical field cycling facilitate optimization and design strategies for HfO2-based FE memory devices.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"214 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145195095","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

A Highly Sensitive and Reliable Humidity Sensor for Low-Water-Pressure Detection in a Vacuum Environment via PEDOT:PSS Films. 一种高灵敏度和可靠的湿度传感器，用于在真空环境中通过PEDOT:PSS薄膜进行低水压检测。

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-10-01 DOI: 10.1021/acs.nanolett.5c03201

Ping Guo,Xuyang An,Xinxin He,Yinhua Hu,Jiatai Chen,Guoyun Zhou,Jinbiao Fan,Weiwei Zhang,Binbin Zhang,Shengyuan Jiang,Jia Zhang

{"title":"A Highly Sensitive and Reliable Humidity Sensor for Low-Water-Pressure Detection in a Vacuum Environment via PEDOT:PSS Films.","authors":"Ping Guo,Xuyang An,Xinxin He,Yinhua Hu,Jiatai Chen,Guoyun Zhou,Jinbiao Fan,Weiwei Zhang,Binbin Zhang,Shengyuan Jiang,Jia Zhang","doi":"10.1021/acs.nanolett.5c03201","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c03201","url":null,"abstract":"Exploring extraterrestrial water resources has far-reaching significance for future human space resource utilization and base construction. Consequently, the development of effective sensing technologies for in situ water detection is a critical endeavor. This work presents a highly sensitive and reliable water molecules sensor based on poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT:PSS) films. The device demonstrates exceptional performance under high-vacuum conditions (1.0 × 10-3 Pa), achieving an extremely low detection limit of 0.02 Pa (148 μg/mL) and exhibiting outstanding reversibility, repeatability, and long-term stability. Furthermore, the sensor successfully underwent rigorous survivability tests designed to simulate the harsh conditions of space, showing no significant performance degradation. Meanwhile, through in situ film surface/thickness and spectroscopic analyses, a deeper understanding of the hydrogen-bond-based interactions between water molecules and PEDOT:PSS has been elucidated. This research provides valuable new insights and a promising platform for the development of advanced sensors aimed at detecting water on other planetary bodies.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"2 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145195096","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

Ru/IrMn Interfacial Orbital-to-Spin Conversion for Antiferromagnetic Switching in Magnetic Tunnel Junctions. 磁隧道结中反铁磁开关的Ru/IrMn界面轨道-自旋转换。

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-10-01 DOI: 10.1021/acs.nanolett.5c03188

Yue Bai,Wenlong Cai,Zanhong Chen,Daoqian Zhu,Shiyang Lu,Jiaxu Li,Ao Du,Kaihua Cao,Guang Yang,Hongxi Liu,Kewen Shi,Weisheng Zhao

{"title":"Ru/IrMn Interfacial Orbital-to-Spin Conversion for Antiferromagnetic Switching in Magnetic Tunnel Junctions.","authors":"Yue Bai,Wenlong Cai,Zanhong Chen,Daoqian Zhu,Shiyang Lu,Jiaxu Li,Ao Du,Kaihua Cao,Guang Yang,Hongxi Liu,Kewen Shi,Weisheng Zhao","doi":"10.1021/acs.nanolett.5c03188","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c03188","url":null,"abstract":"Current-induced antiferromagnetic (AFM) switching is critical for advancing spintronic technologies and expanding their functional landscape. Recently, the orbital Hall effect (OHE) has emerged as a promising mechanism for efficient control of AFM orders, though experimental validation has remained elusive. In this work, we successfully demonstrate efficient orbital-to-spin conversion in Ru/IrMn heterostructure, which enables significant enhancement of both OHE-induced damping-like and field-like torque efficiencies of 0.86 × 105 Ω-1m-1 and 3.01 × 105 Ω-1m-1, respectively. We further investigate the underlying orbital and spin diffusion behavior, revealing a rapid and efficient interfacial conversion mechanism. Additionally, we achieve complete, field-free OHE-induced AFM switching in 80 nm Ru/IrMn-based exchange-bias magnetic tunnel junctions (EB-MTJs), with an ultrafast 0.2 ns write speed and low energy consumption. These results establish a viable route for orbitronic manipulation of AFMs and offer a promising approach for ultrafast, low-power, and scalable spintronic devices.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"18 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145195139","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

Crystallographic Engineering for Enhanced Orbital Torque. 增强轨道转矩的晶体学工程。

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-10-01 DOI: 10.1021/acs.nanolett.5c04272

Hiroki Hayashi,Jieyi Chen,Daegeun Jo,Shoya Sakamoto,Tenghua Gao,Dongwook Go,Yuriy Mokrousov,Hyun-Woo Lee,Shinji Miwa,Kazuya Ando

{"title":"Crystallographic Engineering for Enhanced Orbital Torque.","authors":"Hiroki Hayashi,Jieyi Chen,Daegeun Jo,Shoya Sakamoto,Tenghua Gao,Dongwook Go,Yuriy Mokrousov,Hyun-Woo Lee,Shinji Miwa,Kazuya Ando","doi":"10.1021/acs.nanolett.5c04272","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c04272","url":null,"abstract":"Spin currents and spin torques in magnetic structures have enabled nanoscale spintronic devices. Recent advances have revealed that their orbital counterparts─orbital currents and orbital torques─can be generated, opening the emerging field of orbitronics. However, harnessing orbital currents and orbital torques in solid-state devices remains a major challenge. Here, we demonstrate that crystal orientation engineering provides an effective route to control orbitronic devices. By investigating orbital torque in ferromagnets with epitaxially grown orbital current sources, we show that distinct crystal orientations between the ferromagnet and the orbital source markedly enhance torque efficiency. This counterintuitive result demonstrates that the enhanced efficiency arises from improved alignment between the momentum-space hotspots of orbital Berry curvature and those governing orbital transport. These findings highlight the importance of crystallographic engineering as a key strategy for advancing orbitronic devices and achieving a quantitative understanding of orbital transport and dynamics.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"25 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145203678","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

A Synthetic Liposome Nanoparticle Vaccine Platform for Broad-Spectrum Vaccine Design. 用于广谱疫苗设计的合成脂质体纳米颗粒疫苗平台。

IF 9.1 1区材料科学

Nano Letters Pub Date : 2025-10-01 DOI: 10.1021/acs.nanolett.5c03021

Mo Zhang, Zihan Gao, Sheng Feng, Xun Wang, Huaiyu Wang, Chumeng Yang, Xiaolei Lin, Zhiqiang Xu, Nan Zhang, Yiyang Li, Haochen Tian, Ningyi Jin, Bin Yu, Pengfei Wang, Chang Li, Xianghui Yu

{"title":"A Synthetic Liposome Nanoparticle Vaccine Platform for Broad-Spectrum Vaccine Design.","authors":"Mo Zhang, Zihan Gao, Sheng Feng, Xun Wang, Huaiyu Wang, Chumeng Yang, Xiaolei Lin, Zhiqiang Xu, Nan Zhang, Yiyang Li, Haochen Tian, Ningyi Jin, Bin Yu, Pengfei Wang, Chang Li, Xianghui Yu","doi":"10.1021/acs.nanolett.5c03021","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c03021","url":null,"abstract":"Emerging viruses such as SARS-CoV-2 and HIV-1 pose major challenges for traditional vaccines due to their rapid mutation and immune evasion. Here, we present a modular liposomal nanoparticle (LNP) vaccine platform integrating trimeric immunogens and synergistic adjuvants to induce broad and durable immunity. Using a self-assembled SARS-CoV-2 RBD trimer (RM) based on MTQ and Ni2+/His-tag coupling, antigens were directionally displayed on LNPs coloaded with QS-21, MPLA, and R848 adjuvants. This RM-LNP formulation enhanced antigen stability, lymph node targeting, and germinal center responses, eliciting high titers of broadly neutralizing antibodies and strong T and memory B cell immunity. The RM-LNP vaccine conferred potent neutralization against Omicron subvariants and protected hACE2 mice from Delta, BA.5, and XBB infection. Extension to HIV-1 vaccine design also demonstrated significant and broad neutralization against Tier 2 strains. This study offers a versatile nanovaccine strategy for combating highly mutable viruses.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":" ","pages":""},"PeriodicalIF":9.1,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145205217","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

Recyclable Semiconductor Aerogel Electrochemical Transistors for Ultrasensitive Biosensors. 用于超灵敏生物传感器的可回收半导体气凝胶电化学晶体管。

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-10-01 DOI: 10.1021/acs.nanolett.5c03551

Zhiying Deng,Xu Liu,Liqiong Zhang,Zejun Sun,Linlin Lu,Zhenyu Hu,Puzhong Gu,Xiao Yang,Guoqing Zu,Jia Huang

{"title":"Recyclable Semiconductor Aerogel Electrochemical Transistors for Ultrasensitive Biosensors.","authors":"Zhiying Deng,Xu Liu,Liqiong Zhang,Zejun Sun,Linlin Lu,Zhenyu Hu,Puzhong Gu,Xiao Yang,Guoqing Zu,Jia Huang","doi":"10.1021/acs.nanolett.5c03551","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c03551","url":null,"abstract":"Recyclable organic electronics such as organic electrochemical transistors (OECTs) show great potential for sustainable bioelectronics and sensors. However, it is challenging to achieve recyclability of the OECTs, and the reported active layers of the OECTs typically feature dense semiconductor films with limited ion permeation/transport. Here, recyclable and flexible OECTs based on nanoporous aramid nanofibers/semiconducting polymer aerogels are developed. The resulting OECTs exhibit significantly enhanced ion permeation and transport and record-high transconductance of 136.5 mS among the OECTs with similar channel sizes. The aerogel OECT-based microfluidic dual-channel biosensor shows record-low detection limits of 10 and 1 pM in response to lactate and lysozyme, respectively, making it capable of identifying trace amounts of biomarkers in real body fluids such as saliva and tear. In addition, the semiconducting aerogels are recyclable, offering the possibility of reuse of the transistors. This work presents a powerful approach to recyclable semiconductor aerogels and ultrasensitive OECT biosensors for wearable/sustainable applications.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"5 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145203476","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

Hydrophobically Modified Paclitaxel Prodrug Enables Ultrahigh Drug Loading Driven by Polarity Redistribution. 疏水修饰紫杉醇前药实现极性再分配驱动的超高药物负载。

IF 9.1 1区材料科学

Nano Letters Pub Date : 2025-10-01 DOI: 10.1021/acs.nanolett.5c03911

Zhaofan Yang, Bingxu Qi, Guanyu Jin, Wenye Tan, Lanqing Wang, Luyao Wang, Xin Gao, Lu Zhang, Yu Luo, Shixian Lv

{"title":"Hydrophobically Modified Paclitaxel Prodrug Enables Ultrahigh Drug Loading Driven by Polarity Redistribution.","authors":"Zhaofan Yang, Bingxu Qi, Guanyu Jin, Wenye Tan, Lanqing Wang, Luyao Wang, Xin Gao, Lu Zhang, Yu Luo, Shixian Lv","doi":"10.1021/acs.nanolett.5c03911","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c03911","url":null,"abstract":"Controllable drug loading and self-assembly behaviors are vital to clinical applications of nanomedicines. Achieving high drug loading capacity (DLC) and stable self-assembly remains a significant challenge for hydrophobic chemotherapeutics such as paclitaxel (PTX). In this study, we propose a prodrug design strategy that significantly enhances loading efficiency. Unlike free PTX, which tends to aggregate uncontrollably, the designed prodrugs spontaneously self-assemble into uniform nanoparticles (100-200 nm) with an ultrahigh DLC exceeding 78 wt %. Molecular dynamics simulations reveal that hydrophobic modifications induce intramolecular polarity redistribution, with alkyl chains embedding within the nanoparticle core while polar moieties orient outward, stabilizing the assembled structures. The strategy is further validated by rational prodrug design and comprehensive in vitro and in vivo antitumor evaluations. Overall, the design principles established here offer a simple and versatile platform for optimizing nanomedicine formulations and advancing the clinical translation of high-DLC PTX prodrug nanomedicines.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":" ","pages":""},"PeriodicalIF":9.1,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145205139","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

Two-Terminal Electrical Detection of the Néel Vector via Longitudinal Antiferromagnetic Nonreciprocal Transport. 纵向反铁磁非倒输运nsamel矢量的双端电检测。

IF 9.1 1区材料科学

Nano Letters Pub Date : 2025-09-30 DOI: 10.1021/acs.nanolett.5c02968

Guozhi Long, Hui Zeng, Mingxiang Pan, Wenhui Duan, Huaqing Huang

引用次数: 0

Strain-Engineered PbS Quantum Dot Solar Cells with Suppressed Trap States and Enhanced Performance. 具有抑制陷阱态和增强性能的菌株工程PbS量子点太阳能电池。

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-09-30 DOI: 10.1021/acs.nanolett.5c03779

Jing Li,Xiaobo Ding,Wei Dong,Zhao Luo,Jianxun Wang,Yulu Hua,Ziqi Song,Zeyu Miao,Mengyao Liu,Jingyu Qian,Wenxu Yin,William W Yu,Zeke Liu,Xiaoyu Zhang,Weitao Zheng

引用次数: 0

Controlled Phase Transitions in In2Se3 via Laser-Induced Wrinkling. 激光诱导起皱控制In2Se3相变

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-09-30 DOI: 10.1021/acs.nanolett.5c03772

Joseph L Spellberg,Lina Kodaimati,Atreyie Ghosh,Prakriti P Joshi,Sarah B King

引用次数: 0