Nano Letters最新文献_第10页

Metal-Free Peptide Semiconductor-Enhanced Raman Scattering

IF 10.8 1区材料科学

Nano Letters Pub Date : 2024-12-11 DOI: 10.1021/acs.nanolett.4c04049

Sawsan Almohammed, Agata Fularz, Ahmed Alanazi, Mohammed Benali Kanoun, Souraya Goumri Said, Kai Tao, Brian J. Rodriguez, James H. Rice

{"title":"Metal-Free Peptide Semiconductor-Enhanced Raman Scattering","authors":"Sawsan Almohammed, Agata Fularz, Ahmed Alanazi, Mohammed Benali Kanoun, Souraya Goumri Said, Kai Tao, Brian J. Rodriguez, James H. Rice","doi":"10.1021/acs.nanolett.4c04049","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c04049","url":null,"abstract":"There is a growing demand for sustainable and safe materials in developing technological systems and devices, including those that enhance Raman scattering. Organic (bio) materials based on simple peptides are one class of such materials. This study investigates self-assembled semiconducting peptides as metal-free substrates for surface-enhanced Raman scattering. Our results reveal significant variations in Raman enhancement factors, spanning up to 2 orders of magnitude. We examined specific Raman enhancement selection rules related to the energy levels and structural configurations of the probe molecules. The effectiveness of these rules underscores the importance of strong molecule-peptide coupling and efficient charge transfer for achieving optimal Raman enhancement factors. These insights offer a foundational understanding of peptide–molecule interactions and the underlying chemical mechanisms driving Raman enhancement, highlighting the potential of organic semiconductor-based materials as highly effective platforms for enhancing Raman scattering in chemical sensing applications.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"2 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142810004","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

High-Strength Silicon Anodes with High Tap Density via Compression Carbonization for Liquid and All-Solid-State Lithium-Ion Batteries. 用于液态和全固态锂离子电池的压缩碳化高强度硅阳极。

IF 9.6 1区材料科学

Nano Letters Pub Date : 2024-12-11 Epub Date: 2024-11-27 DOI: 10.1021/acs.nanolett.4c04106

Rui Qiao, Xuefeng Shen, Caiwang Mao, Yunpeng Di, Shijie Zhou, Tao Jiang, Ximin Zhai, Yanhua Zhang, Wei Wang, Jiangxuan Song

{"title":"High-Strength Silicon Anodes with High Tap Density via Compression Carbonization for Liquid and All-Solid-State Lithium-Ion Batteries.","authors":"Rui Qiao, Xuefeng Shen, Caiwang Mao, Yunpeng Di, Shijie Zhou, Tao Jiang, Ximin Zhai, Yanhua Zhang, Wei Wang, Jiangxuan Song","doi":"10.1021/acs.nanolett.4c04106","DOIUrl":"10.1021/acs.nanolett.4c04106","url":null,"abstract":"Despite the advantages of nanostructure design with a balance of capacity and cycle life, the low tap density (<1 g cm-3) and high swelling properties make nanostructured silicon far from practical in applications. Here, we design a free-standing silicon graphite composite integrated anode through facile one-pot sintering with pitch under pressure. The thermomechanical effect during compression carbonization enables the integrated electrode to achieve a high tap density of 1.51 g cm-3, >2 times that of typical free-standing electrodes. In situ expansion measurements demonstrate that the longitudinal expansion of integrated electrodes is <20% of that of conventional electrodes. A rational conductive framework enables integrated electrodes to exhibit remarkable cycling stability in both liquid lithium-ion batteries (77.6% capacity retention after 500 cycles) and all-solid-state lithium-ion batteries (98.5% capacity retention after 1000 cycles). In particular, integrated electrodes remain stable even with a high areal capacity of 12.6 mAh cm-2.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":" ","pages":"15629-15637"},"PeriodicalIF":9.6,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142737809","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

Microscopic Insights into Zn (002) Epitaxial Electrodeposition in Aqueous Zinc Metal Batteries 水溶液锌金属电池中锌（002）外延电沉积的显微观察

IF 10.8 1区材料科学

Nano Letters Pub Date : 2024-12-11 DOI: 10.1021/acs.nanolett.4c05278

Chunyu Zhao, Jie Sun, Wencheng Lu, Peiyan Sun, Mengqi Wu, Ruqian Lian, Yizhan Wang, Yingjin Wei

{"title":"Microscopic Insights into Zn (002) Epitaxial Electrodeposition in Aqueous Zinc Metal Batteries","authors":"Chunyu Zhao, Jie Sun, Wencheng Lu, Peiyan Sun, Mengqi Wu, Ruqian Lian, Yizhan Wang, Yingjin Wei","doi":"10.1021/acs.nanolett.4c05278","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c05278","url":null,"abstract":"Dendrite growth, corrosion, passivation, and other side reactions during Zn plating and stripping have consistently hindered the capacity and lifespan of Zn metal batteries. In this study, we employ first-principles calculations to unravel the epitaxial electroplating mechanism of Zn (002) planes on various substrate surfaces. We identify six critical factors, including interfacial stability, zincophilicity, surface atomic arrangement, lattice mismatch, responsiveness, and adaptability, that profoundly influence the electrochemical behavior of zinc deposition. Our findings reveal that substrates with hexagonal surface atomic arrangements and strong metallic bonding with zinc, such as (002)-Zn, (111)-Cu, and Ti3C2 MXenes, facilitate uniform and dendrite-free zinc deposition. Notably, lattice contraction induced by substrate lattice mismatch exerts a greater impact on the deposition stability than lattice expansion. Kinetic analyses demonstrate that substrates exhibiting high responsiveness and adaptability can tolerate higher current densities and larger areal capacities, which are crucial for practical applications.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"4 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142805243","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

Unveiling the Gold Facet Effect in Selective Oxidation of 5-Hydroxymethylfurfural and Hydrogen Production

IF 10.8 1区材料科学

Nano Letters Pub Date : 2024-12-11 DOI: 10.1021/acs.nanolett.4c04786

Qizhen Qin, Tan Li, Xuehao Sun, An Pei, Yanyan Jia, Hongpeng He, Fan Gao, Peng Wang, Qiqi Wu, Renfeng Liu, Sheng Dai, Haixin Lin, Qingfeng Zhang, Yun Zhao, Guangxu Chen

{"title":"Unveiling the Gold Facet Effect in Selective Oxidation of 5-Hydroxymethylfurfural and Hydrogen Production","authors":"Qizhen Qin, Tan Li, Xuehao Sun, An Pei, Yanyan Jia, Hongpeng He, Fan Gao, Peng Wang, Qiqi Wu, Renfeng Liu, Sheng Dai, Haixin Lin, Qingfeng Zhang, Yun Zhao, Guangxu Chen","doi":"10.1021/acs.nanolett.4c04786","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c04786","url":null,"abstract":"Direct oxidation of 5-hydroxymethylfurfural (HMF) to 5-hydroxymethyl-2-furancarboxylic acid (HMFCA), crucial for medical supply production, is hindered by overoxidation. We synthesized gold nanomaterials with distinct single-crystal facets, {111} in octahedra (OC), {100} in nanocubes (NCs), and {110} in rhombic dodecahedra (RD), to investigate the facet-dependent HMF oxidation. The Au RD achieved the spontaneous oxidation of HMF to HMFCA with stoichiometric hydrogen production, maintaining 95% carbon balance, 91% yield, and 98% selectivity. In contrast, Au OC and NCs were inert. The superior performance is due to the absence of a C–H activation energy barrier on the Au(110) facet. Furthermore, gas chromatography and isotope experiments supported that the intermediate is oxidized to produce H2 via H– transfer, rather than H2O via H+ transfer. Oxygen was essential for scavenging electrons, thereby closing the reaction loop. The Au RD exhibited remarkable stability, operating for 240 h without performance degradation, indicating its potential for efficient HMFCA production.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"41 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142805189","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

Molecular Mechanisms of Solvation Force for Aqueous Systems 水体系溶解力的分子机制

IF 10.8 1区材料科学

Nano Letters Pub Date : 2024-12-10 DOI: 10.1021/acs.nanolett.4c03954

Zhi Xu, Han Li, Ming Ma

引用次数: 0

Energy-Efficient Integrated Electro-Optic Memristors

IF 10.8 1区材料科学

Nano Letters Pub Date : 2024-12-10 DOI: 10.1021/acs.nanolett.4c04567

Yuhan He, Nikolaos Farmakidis, Samarth Aggarwal, Bowei Dong, June Sang Lee, Mengyun Wang, Yi Zhang, Francesca Parmigiani, Harish Bhaskaran

{"title":"Energy-Efficient Integrated Electro-Optic Memristors","authors":"Yuhan He, Nikolaos Farmakidis, Samarth Aggarwal, Bowei Dong, June Sang Lee, Mengyun Wang, Yi Zhang, Francesca Parmigiani, Harish Bhaskaran","doi":"10.1021/acs.nanolett.4c04567","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c04567","url":null,"abstract":"Neuromorphic photonic processors are redefining the boundaries of classical computing by enabling high-speed multidimensional information processing within the memory. Memristors, the backbone of neuromorphic processors, retain their state after programming without static power consumption. Among them, electro-optic memristors are of great interest, as they enable dual electrical–optical functionality that bridges the efficiency of electronics and the bandwidth of photonics. However, efficient, scalable, and CMOS-compatible implementations of electro-optic memristors are still lacking. Here, we devise electro-optic memristors by structuring the phase-change material as a nanoscale constriction, geometrically confining the electrically generated heat profile to overlap with the optical field, thus achieving programmability and readability in both the electrical and optical domains. We demonstrate sub-10 pJ electrical switching energy and a high electro-optical modulation efficiency of 0.15 nJ/dB. Our work opens up opportunities for high-performance and energy-efficient integrated electro-optic neuromorphic computing.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"25 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142804937","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

Revealing Ultrafast Optical Nonlinearity of Trapped Exciton Polaritons in Atomically Thin Semiconductors

IF 10.8 1区材料科学

Nano Letters Pub Date : 2024-12-09 DOI: 10.1021/acs.nanolett.4c04195

Yuan Luo, Yutian Peng, Lingyu Tian, Zhiyuan An, Haiyun Liu, Yuzhong Chen, Sanjib Ghosh, Qihua Xiong

{"title":"Revealing Ultrafast Optical Nonlinearity of Trapped Exciton Polaritons in Atomically Thin Semiconductors","authors":"Yuan Luo, Yutian Peng, Lingyu Tian, Zhiyuan An, Haiyun Liu, Yuzhong Chen, Sanjib Ghosh, Qihua Xiong","doi":"10.1021/acs.nanolett.4c04195","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c04195","url":null,"abstract":"Nonlinearities are fundamental to modern optical technologies. Exciton polaritons in semiconductor microcavities provide a promising route to strong nonlinearities. Monolayer TMDs, with tightly bound excitons and strong oscillator strength, enable polaritonic phenomena under ambient conditions but face challenges from weak polariton interactions due to small exciton Bohr radius. Although spatial confinement can boost polariton nonlinearity, the dynamics of trapped polaritons remain underexplored. Here we study the transient nonlinearities of confined polaritons in monolayer WS2 mesa cavities. We observe increasingly pronounced blueshifts within the first few picoseconds as trapping sizes decrease or excitonic fractions increase. Furthermore, our findings reveal that exciton–photon detuning, not trapping size, predominantly influences the time to reach the peak of transient nonlinearity. This insight aligns with the experimentally observed and theoretically simulated relaxation dynamics of trapped polaritons. Our findings pave the way for developing ultrafast all-optical polaritonic devices in TMD systems.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"78 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142797771","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

Oxidation Triggered Supramolecular Chirality

IF 10.8 1区材料科学

Nano Letters Pub Date : 2024-12-09 DOI: 10.1021/acs.nanolett.4c05255

Jie Zhang, Aiyou Hao, Pengyao Xing

引用次数: 0

Rational Design of Genetically Engineered Mitochondrial-Targeting Nanozymes for Alleviating Myocardial Ischemic-Reperfusion Injury

IF 10.8 1区材料科学

Nano Letters Pub Date : 2024-12-09 DOI: 10.1021/acs.nanolett.4c04462

Xiangyun Zhang, Qiqi Liu, Rongping Zhao, Zhihua Pang, Weiyu Zhang, Tianyi Qi, Mingsheng Zhu, Helong Kang, Meng Qian, Yajuan Wan, Rui Wang, Shufang Wang, Xinglu Huang, Jie Zhuang

{"title":"Rational Design of Genetically Engineered Mitochondrial-Targeting Nanozymes for Alleviating Myocardial Ischemic-Reperfusion Injury","authors":"Xiangyun Zhang, Qiqi Liu, Rongping Zhao, Zhihua Pang, Weiyu Zhang, Tianyi Qi, Mingsheng Zhu, Helong Kang, Meng Qian, Yajuan Wan, Rui Wang, Shufang Wang, Xinglu Huang, Jie Zhuang","doi":"10.1021/acs.nanolett.4c04462","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c04462","url":null,"abstract":"The development of mitochondria-targeting nanozymes holds significant promise for treating myocardial ischemia-reperfusion (IR) injury but faces significant biological barriers. To overcome these obstacles, we herein utilized genetically engineered ferritin nanocages (i.e., imFTn) to develop mitochondria-targeting nanozymes consisting of three ferritin subunit assembly modules: an IR-injured cardiomyocyte-targeting module, a lysosome-escaping module, and a mitochondria-targeting module. Using imFTn as a nanozyme platform, we developed nanozymes capable of efficiently catalyzing the l-Arg substrate to produce NO. The imFTn-Ru exhibits NO-generating activities, reduces mitochondrial reactive oxygen species generation, inhibits mitochondrial permeability transition pore opening, and enhances mitochondrial membrane potential. Furthermore, imFTn-Ru provides synergistic effects by specifically targeting myocardial IR-injured tissues, facilitating their accumulation in mitochondria, and protecting mitochondria against myocardial IR-induced injury in both in vitro and in vivo models. This study underscores a rational approach to designing nanozymes for targeting specific subcellular organelles in the treatment of IR injury.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"140 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142793527","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

Enhanced Basal-Plane Catalytic Activity of MoS2 by Constructing an Electron Bridge for High-Performance Lithium–Sulfur Batteries

IF 9.6 1区材料科学

Nano Letters Pub Date : 2024-12-09 DOI: 10.1021/acs.nanolett.4c0413910.1021/acs.nanolett.4c04139

Genlin Liu, Tianran Yan, Yiyun Zhang, Pan Zeng, Bin Wang*, Cheng Yuan, Chen Cheng, Lei Wang, Xiaosong Liu, Jianrong Zeng* and Liang Zhang*,

{"title":"Enhanced Basal-Plane Catalytic Activity of MoS2 by Constructing an Electron Bridge for High-Performance Lithium–Sulfur Batteries","authors":"Genlin Liu, Tianran Yan, Yiyun Zhang, Pan Zeng, Bin Wang*, Cheng Yuan, Chen Cheng, Lei Wang, Xiaosong Liu, Jianrong Zeng* and Liang Zhang*, ","doi":"10.1021/acs.nanolett.4c0413910.1021/acs.nanolett.4c04139","DOIUrl":"https://doi.org/10.1021/acs.nanolett.4c04139https://doi.org/10.1021/acs.nanolett.4c04139","url":null,"abstract":"MoS2 is a promising sulfur host material for lithium–sulfur (Li–S) batteries, but its low conductivity and limited active edge sites largely inhibit the catalytic activity toward the conversion of lithium polysulfides (LiPSs). Herein, we propose an electron bridge strategy by combining interlayer structure modification and electronic modulation to activate the basal-plane catalytic activity of MoS2 for the highly efficient catalytic conversion of LiPSs. As validated by experimental characterizations and theoretical calculations, the proposed strategy not only creates a conductive network but also induces delocalized electron redistribution within the MoS2 basal planes, leading to facilitated interfacial charge transfer kinetics and accelerated LiPSs redox kinetics. Because of these advantages, the Li–S batteries assembled with regulated MoS2 demonstrate outstanding electrochemical performance even under practical conditions. This work demonstrates the effectiveness and potential of regulating the intrinsic basal-plane catalytic activity of transition-metal dichalcogenides for Li–S batteries and beyond.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"24 50","pages":"15973–15980 15973–15980"},"PeriodicalIF":9.6,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142843074","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