Nanoscale Horizons最新文献_第2页

The well-defined three-dimensional matrix of a micro-sized silicon/carbon composite promoting lithium-ion transportation. 微型硅碳复合材料的三维矩阵定义明确，可促进锂离子运输。

IF 8 2区材料科学

Nanoscale Horizons Pub Date : 2024-11-12 DOI: 10.1039/d4nh00349g

Denghui Wang, Minghao Ma, Wenqiang Xu, Yingjie Ma, Lidong Li, Xianglong Li

{"title":"The well-defined three-dimensional matrix of a micro-sized silicon/carbon composite promoting lithium-ion transportation.","authors":"Denghui Wang, Minghao Ma, Wenqiang Xu, Yingjie Ma, Lidong Li, Xianglong Li","doi":"10.1039/d4nh00349g","DOIUrl":"https://doi.org/10.1039/d4nh00349g","url":null,"abstract":"Micro-sized silicon is a promising anode material due to its high theoretical capacity and low cost. However, its bulk particle size poses a challenge during electrochemical cycling, and the long ion/electron transport paths within it limit the rate capability. Herein, we propose a structural engineering approach for establishing a well-defined three-dimensional (3D) micro-sized silicon/carbon matrix to achieve efficient omnidirectional ionic and electronic conductivity within micro-sized silicon and effectively mitigate the volume changes. The prepared materials, comprising ordered two-dimensional porous silicon nanosheets, offer direct two-dimensional electrolyte transport channels aligned parallel to the layer plane and porous channels oriented perpendicular to the layer plane. These well-defined omnidirectional pathways enable more efficient electrolyte mass transport than the disordered paths within the traditional 3D porous silicon anodes. A robust carbon shell, securely bonded to silicon through dual covalent bonding, effectively shields these pathways, buffering the volume changes and offering an electronically conductive 3D carbon network.","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" ","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142612948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

The near field response of molecules coupled with plasmons at atomistic resolution. 原子分辨率下分子与质子耦合的近场响应。

IF 8 2区材料科学

Nanoscale Horizons Pub Date : 2024-11-11 DOI: 10.1039/d4nh00451e

Huijie He, Xueyang Zhen, Shuang Li, Sibing Chen, Xing Chen

{"title":"The near field response of molecules coupled with plasmons at atomistic resolution.","authors":"Huijie He, Xueyang Zhen, Shuang Li, Sibing Chen, Xing Chen","doi":"10.1039/d4nh00451e","DOIUrl":"https://doi.org/10.1039/d4nh00451e","url":null,"abstract":"The interaction between nanoparticles on mirror (NPoM) nanostructures and molecules is of great significance for the development of plasmon-enhanced spectroscopy (PES) techniques. However, the coupling mechanism between resonantly excited molecules and plasmonics has not been fully understood. In this work, we took viologen molecules within an Au plasmonic nanocavity (AuNC) as an example to illustrate how resonant molecules influence the near-field distributions. We found that the near-fields are highly enhanced and the near-field distributions are altered when the monocationic viologen (V+˙) is in resonance. In the AuNC, the near-field enhancement of a molecule is significantly enhanced by the adjacent molecules. However, the average near-field enhancements experienced by each molecule decrease with the increasing coverage of the molecular monolayer. Furthermore, the contributions of molecules to the near-field enhancement initially increase and then decrease as coverage increases. The interactions between the molecules and the nanocavity exhibit negative contributions to near-field enhancement. Overall, this work offers valuable insights into the impact of resonantly excited molecules on near-field enhancements in nanocavities and offers guidance for tuning excitation wavelength. We propose that the resonance state and coverage of molecules are critical to improving the sensitivity and specificity of PES techniques.","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" ","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142612947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 catch-and-release nano-based gene delivery system† 一种基于捕捉和释放纳米的基因递送系统。

IF 9.7 2区材料科学

Nanoscale Horizons Pub Date : 2023-09-06 DOI: 10.1039/D3NH00269A

Christoph O. Franck, Andrea Bistrovic Popov, Ishtiaq Ahmed, Rachel E. Hewitt, Luise Franslau, Puneet Tyagi and Ljiljana Fruk

{"title":"A catch-and-release nano-based gene delivery system†","authors":"Christoph O. Franck, Andrea Bistrovic Popov, Ishtiaq Ahmed, Rachel E. Hewitt, Luise Franslau, Puneet Tyagi and Ljiljana Fruk","doi":"10.1039/D3NH00269A","DOIUrl":"10.1039/D3NH00269A","url":null,"abstract":"The design of nanomaterial-based nucleic acid formulations is one of the biggest endeavours in the search for clinically applicable gene delivery systems. Biopolymers represent a promising subclass of gene carriers due to their physicochemical properties, biodegradability and biocompatibility. By modifying melanin-like polydopamine nanoparticles with poly-L-arginine and poly-L-histidine blends, we obtained a novel catch-and-release gene delivery system for efficient trafficking of pDNA to human cells. A synergistic interplay of nanoparticle-bound poly-L-arginine and poly-L-histidine was observed and evaluated for pDNA binding affinity, cell viability, gene release and transfection. Although the functionalisation with poly-L-arginine was crucial for pDNA binding, the resulting nanocarriers failed to release pDNA intracellularly, resulting in limited protein expression. However, optimal pDNA release was achieved through the co-formulation with poly-L-histidine, essential for pDNA release. This effect enabled the design of gene delivery systems, which were comparable to Lipofectamine in terms of transfection efficacy and the catch-and-release surface modification strategy can be translated to other nanocarriers and surfaces.","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" 11","pages":" 1588-1594"},"PeriodicalIF":9.7,"publicationDate":"2023-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2023/nh/d3nh00269a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10200269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance and stability enhancement of perovskite photodetectors by additive and interface engineering using a dual-functional PPS zwitterion† 使用双功能PPS两性离子通过添加剂和界面工程增强钙钛矿光电探测器的性能和稳定性。

IF 9.7 2区材料科学

Nanoscale Horizons Pub Date : 2023-09-05 DOI: 10.1039/D3NH00263B

Abbas Ahmad Khan, Navneet Kumar, Uijin Jung, Wonjun Heo, Zhaozhong Tan and Jinsub Park

{"title":"Performance and stability enhancement of perovskite photodetectors by additive and interface engineering using a dual-functional PPS zwitterion†","authors":"Abbas Ahmad Khan, Navneet Kumar, Uijin Jung, Wonjun Heo, Zhaozhong Tan and Jinsub Park","doi":"10.1039/D3NH00263B","DOIUrl":"10.1039/D3NH00263B","url":null,"abstract":"Hybrid organic–inorganic metal halide perovskites (HOIPs) have gained significant research interest due to their tunable optoelectronic properties and ease of fabrication. Enhancing the stability and efficiency of perovskite materials can be achieved through the passivation of defective surfaces and the improvement of interfacial properties. In this study, we introduce a zwitterionic compound, PPS (3-(1-pyridinio)-1-propanesulfonate), as a bifunctional material that serves as an additive and an interlayer. Incorporating PPS into the perovskite film effectively reduces both positively and negatively charged defects, leading to improved surface morphology and a reduction in undesired charge carrier recombination. Additionally, the formation of a PPS interlayer on SnO2 improves the SnO2/perovskite interfacial characteristics, thereby enhancing charge carrier extraction. As a result, the photodetector exhibits a low dark current of 6.05 × 10−11 A, an excellent responsivity of 5.93 A W−1, a detectivity of 1.51 × 1013 J, and an on/off ratio of 1.2 × 104 under open-air conditions. Moreover, the device demonstrates outstanding stability, retaining 80% of its original responsivity in an ambient environment. This work highlights the great potential of dual-functional materials for defect passivation in future optoelectronic devices, emphasizing the importance of surface modification and interface engineering for improved performance and stability.","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" 11","pages":" 1577-1587"},"PeriodicalIF":9.7,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10238850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Defect engineering enhances plasmonic-hot electrons exploitation for CO2 reduction over polymeric catalysts† 缺陷工程增强了等离子体热电子在聚合物催化剂上的CO2还原利用。

IF 9.7 2区材料科学

Nanoscale Horizons Pub Date : 2023-09-05 DOI: 10.1039/D3NH00348E

Hang Yin, Zhehao Sun, Kaili Liu, Ary Anggara Wibowo, Julien Langley, Chao Zhang, Sandra E. Saji, Felipe Kremer, Dmitri Golberg, Hieu T. Nguyen, Nicholas Cox and Zongyou Yin

引用次数: 0

Microfluidic synthesis of nanomaterials for biomedical applications 生物医学纳米材料的微流控合成。

IF 9.7 2区材料科学

Nanoscale Horizons Pub Date : 2023-09-05 DOI: 10.1039/D3NH00217A

Yanjuan Huang, Chao Liu, Qiang Feng and Jiashu Sun

引用次数: 0

Automated mechanical exfoliation technique: a spin pumping study in YIG/TMD heterostructures† 自动机械剥离技术：YIG/TMD异质结构中的自旋泵浦研究。

IF 9.7 2区材料科学

Nanoscale Horizons Pub Date : 2023-09-01 DOI: 10.1039/D3NH00137G

Rodrigo Torrão Victor, John Fredy Ricardo Marroquin, Syed Hamza Safeer, Danian Alexandre Dugato, Braulio Soares Archanjo, Luiz Carlos Sampaio, Flavio Garcia and Jorlandio Francisco Felix

{"title":"Automated mechanical exfoliation technique: a spin pumping study in YIG/TMD heterostructures†","authors":"Rodrigo Torrão Victor, John Fredy Ricardo Marroquin, Syed Hamza Safeer, Danian Alexandre Dugato, Braulio Soares Archanjo, Luiz Carlos Sampaio, Flavio Garcia and Jorlandio Francisco Felix","doi":"10.1039/D3NH00137G","DOIUrl":"10.1039/D3NH00137G","url":null,"abstract":"Spintronics devices rely on the generation and manipulation of spin currents. Two-dimensional transition-metal dichalcogenides (TMDs) are among the most promising materials for a spin current generation due to a lack of inversion symmetry at the interface with the magnetic material. Here, we report on the fabrication of Yttrium Iron Garnet(YIG)/TMD heterostructures by means of a crude and fast method. While the magnetic insulator single-crystalline YIG thin films were grown by magnetron sputtering, the TMDs, namely MoS2 and MoSe2, were directly deposited onto YIG films using an automated mechanical abrasion method. Despite the brute force aspect of the method, it produces high-quality interfaces, which are suitable for spintronic device applications. The spin current density and the effective spin mixing conductance were measured by ferromagnetic resonance, whose values found are among the highest reported in the literature. Our method can be scaled to produce ferromagnetic materials/TMD heterostructures on a large scale, further advancing their potential for practical applications.","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" 11","pages":" 1568-1576"},"PeriodicalIF":9.7,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10164929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Quantum-sized topological insulators/semimetals enable ultrahigh and broadband saturable absorption† 量子大小的拓扑绝缘体/半金属可以实现超高和宽带饱和吸收。

IF 9.7 2区材料科学

Nanoscale Horizons Pub Date : 2023-09-01 DOI: 10.1039/D3NH00282A

Zhexue Chen, Xinyu Sui, Zhangqiang Li, Yueqi Li, Xinfeng Liu and Yong Zhang

{"title":"Quantum-sized topological insulators/semimetals enable ultrahigh and broadband saturable absorption†","authors":"Zhexue Chen, Xinyu Sui, Zhangqiang Li, Yueqi Li, Xinfeng Liu and Yong Zhang","doi":"10.1039/D3NH00282A","DOIUrl":"10.1039/D3NH00282A","url":null,"abstract":"Two-dimensional topological insulators/semimetals have recently attracted much attention. However, quantum-sized topological insulators/semimetals with intrinsic characteristics have never been reported before. Herein, we report the high-yield production of topological insulator (i.e., Bi2Se3 and Sb2Te3) and semimetal (i.e., TiS2) quantum sheets (QSs) with monolayer structures and sub-4 nm lateral sizes. Both linear and nonlinear optical performances of the QSs are investigated. The QS dispersions present remarkable photoluminescence with excitation wavelength-, concentration-, and solvent-dependence. The solution-processed QSs-poly(methyl methacrylate) (PMMA) hybrid thin films demonstrate exceptional nonlinear saturation absorption (NSA). Particularly, Bi2Se3 QSs-PMMA enables record-high NSA performance with a broadband feature. Specifically, the (absolute) modulation depths up to 71.6 and 72.4% and saturation intensities down to 1.52 and 0.49 MW cm−2 are achieved at 532 and 800 nm, respectively. Such a phenomenal NSA performance would greatly facilitate their applications in mode-locked lasers and related fields.","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" 12","pages":" 1686-1694"},"PeriodicalIF":9.7,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10572607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Neuronal maturation-dependent nano–neuro interaction and modulation† 神经元成熟依赖于纳米神经相互作用和调节。

IF 9.7 2区材料科学

Nanoscale Horizons Pub Date : 2023-08-29 DOI: 10.1039/D3NH00258F

Prashant Gupta, Priya Rathi, Rohit Gupta, Harsh Baldi, Quentin Coquerel, Avishek Debnath, Hamed Gholami Derami, Baranidharan Raman and Srikanth Singamaneni

{"title":"Neuronal maturation-dependent nano–neuro interaction and modulation†","authors":"Prashant Gupta, Priya Rathi, Rohit Gupta, Harsh Baldi, Quentin Coquerel, Avishek Debnath, Hamed Gholami Derami, Baranidharan Raman and Srikanth Singamaneni","doi":"10.1039/D3NH00258F","DOIUrl":"10.1039/D3NH00258F","url":null,"abstract":"Nanotechnology-enabled neuromodulation is a promising minimally-invasive tool in neuroscience and engineering for both fundamental studies and clinical applications. However, the nano–neuro interaction at different stages of maturation of a neural network and its implications for the nano–neuromodulation remain unclear. Here, we report heterogeneous to homogeneous transformation of neuromodulation in a progressively maturing neural network. Utilizing plasmonic-fluors as ultrabright fluorescent nanolabels, we reveal that negative surface charge of nanoparticles renders selective nano–neuro interaction with a strong correlation between the maturation stage of the individual neurons in the neural network and the density of the nanoparticles bound on the neurons. In stark contrast to homogeneous neuromodulation in a mature neural network reported so far, the maturation-dependent density of the nanoparticles bound to neurons in a developing neural network resulted in a heterogeneous optical neuromodulation (i.e., simultaneous excitation and inhibition of neural network activity). This study advances our understanding of nano–neuro interactions and nano–neuromodulation with potential applications in minimally-invasive technologies for treating neuronal disorders in parts of the mammalian brain where neurogenesis persists throughout aging.","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" 11","pages":" 1537-1555"},"PeriodicalIF":9.7,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10534801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 cooperation tale of biomolecules and nanomaterials in nanoscale chiral sensing and separation 生物分子和纳米材料在纳米手性传感和分离方面的合作故事。

IF 9.7 2区材料科学

Nanoscale Horizons Pub Date : 2023-08-18 DOI: 10.1039/D3NH00133D

Tingting Hong, Wenhu Zhou, Songwen Tan and Zhiqiang Cai

引用次数: 1