Nanoscale Horizons最新文献_第4页

Foundational insights for theranostic applications of magnetoelectric nanoparticles

IF 8 2区材料科学

Nanoscale Horizons Pub Date : 2025-01-23 DOI: 10.1039/D4NH00560K

Victoria Andre, Mostafa Abdel-Mottaleb, Max Shotbolt, Shawnus Chen, Zeinab Ramezini, Elric Zhang, Skye Conlan, Ozzie Telisman, Ping Liang, John M. Bryant, Roman Chomko and Sakhrat Khizroev

引用次数: 0

Understanding the effects of adduct functionalization on C60 nanocages for the hydrogen evolution reaction†

IF 8 2区材料科学

Nanoscale Horizons Pub Date : 2025-01-22 DOI: 10.1039/D4NH00586D

Joy Spears, Mina Shawky Adly, Edison Castro, Alain R. Puente Santiago, Luis Echegoyen, Tianwei He, Christopher J. Dares and Mohamed Noufal

引用次数: 0

High-refractive-index 2D photonic structures for robust low-threshold multiband lasing†

IF 8 2区材料科学

Nanoscale Horizons Pub Date : 2025-01-22 DOI: 10.1039/D4NH00574K

Ana Conde-Rubio, Juan R. Deop-Ruano, Luis Cerdán, Alejandro Manjavacas and Agustín Mihi

{"title":"High-refractive-index 2D photonic structures for robust low-threshold multiband lasing†","authors":"Ana Conde-Rubio, Juan R. Deop-Ruano, Luis Cerdán, Alejandro Manjavacas and Agustín Mihi","doi":"10.1039/D4NH00574K","DOIUrl":"10.1039/D4NH00574K","url":null,"abstract":"High-refractive-index (HRI) dielectrics are gaining increasing attention as building blocks for compact lasers. Their ability to simultaneously support both electric and magnetic modes provides greater versatility as compared to plasmonic platforms. Moreover, their reduced absorption loss minimizes heat generation, further enhancing their performance. Here, we employ a scalable soft nanoimprinting lithography method to create a series of two-dimensional (2D) periodic square hole arrays in polymeric films (SU-8), which are coated with an HRI dielectric layer (TiO2). These structures exhibit low-threshold lasing from an organic dye-doped SU-8 layer deposited on top. We study arrays with different lattice parameters and a sample with a random distribution of holes, finding that the optimal laser performance occurs when the optical resonances of the array align with the emission wavelength range of the dye. Furthermore, we observe that the anisotropy in the TiO2 coating breaks the polarization degeneracy of the square arrays, leading to the emergence of new modes and enabling the simultaneous appearance of multiple lasing peaks. Our work shows that, despite the simplicity of their fabrication process, the HRI structures studied here exhibit a high degree of complexity, leading to a rich optical response and enabling multiband lasing. This offers an innovative approach to building robust HRI platforms for lasing with improved control over their emission properties.","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" 4","pages":" 724-732"},"PeriodicalIF":8.0,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/nh/d4nh00574k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143051104","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

Correction: Single glucose molecule transport process revealed by force tracing and molecular dynamics simulations 更正：单葡萄糖分子的运输过程揭示了力追踪和分子动力学模拟。

IF 8 2区材料科学

Nanoscale Horizons Pub Date : 2025-01-22 DOI: 10.1039/D5NH90006A

Yangang Pan, Yuebin Zhang, Pianchou Gongpan, Qingrong Zhang, Siteng Huang, Bin Wang, Bingqian Xu, Yuping Shan, Wenyong Xiong, Guohui Li and Hongda Wang

引用次数: 0

Block copolymer-assembled nanopore arrays enable ultrasensitive label-free DNA detection†

IF 8 2区材料科学

Nanoscale Horizons Pub Date : 2025-01-17 DOI: 10.1039/D4NH00466C

Maximiliano Jesus Jara Fornerod, Alberto Alvarez-Fernandez, Máté Füredi, Anandapadmanabhan A Rajendran, Beatriz Prieto-Simón, Nicolas H. Voelcker and Stefan Guldin

{"title":"Block copolymer-assembled nanopore arrays enable ultrasensitive label-free DNA detection†","authors":"Maximiliano Jesus Jara Fornerod, Alberto Alvarez-Fernandez, Máté Füredi, Anandapadmanabhan A Rajendran, Beatriz Prieto-Simón, Nicolas H. Voelcker and Stefan Guldin","doi":"10.1039/D4NH00466C","DOIUrl":"10.1039/D4NH00466C","url":null,"abstract":"DNA detection via nanoporous-based electrochemical biosensors is a promising method for rapid pathogen identification and disease diagnosis. These sensors detect electrical current variations caused by DNA hybridization in a nanoporous layer on an electrode. Current fabrication techniques for the typically micrometers-thick nanoporous layer often suffer from insufficient control over nanopore dimensions and involve complex fabrication steps, including handling and stacking of a brittle porous membrane. Here, we introduce a bottom-up fabrication process based on the self-assembly of high molecular weight block copolymers with sol–gel precursors to create an inorganic nanoporous thin film directly on electrode surfaces. This approach eliminates the need for elaborate manipulation of the nanoporous membrane, provides fine control over the structural features, and enables surface modification with DNA capture probes. Using this nanoarchitecture with a thickness of 150 nm, we detected DNA sequences derived from 16S rRNA gene fragments of the E. coli genome electrochemically in less than 20 minutes, achieving a limit of detection of 30 femtomolar (fM) and a limit of quantification of 500 fM. This development marks a significant step towards a portable, rapid, and accurate DNA detection system.","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" 4","pages":" 760-769"},"PeriodicalIF":8.0,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11795167/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143187489","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

Forming and compliance-free operation of low-energy, fast-switching HfOxSy/HfS2 memristors†

IF 8 2区材料科学

Nanoscale Horizons Pub Date : 2025-01-15 DOI: 10.1039/D4NH00508B

Aferdita Xhameni, AbdulAziz AlMutairi, Xuyun Guo, Irina Chircă, Tianyi Wen, Stephan Hofmann, Valeria Nicolosi and Antonio Lombardo

{"title":"Forming and compliance-free operation of low-energy, fast-switching HfOxSy/HfS2 memristors†","authors":"Aferdita Xhameni, AbdulAziz AlMutairi, Xuyun Guo, Irina Chircă, Tianyi Wen, Stephan Hofmann, Valeria Nicolosi and Antonio Lombardo","doi":"10.1039/D4NH00508B","DOIUrl":"10.1039/D4NH00508B","url":null,"abstract":"We demonstrate low energy, forming and compliance-free operation of a resistive memory obtained by the partial oxidation of a two-dimensional layered van-der-Waals semiconductor: hafnium disulfide (HfS2). Semiconductor–oxide heterostructures are achieved by low temperature (<300 °C) thermal oxidation of HfS2 under dry conditions, carefully controlling process parameters. The resulting HfOxSy/HfS2 heterostructures are integrated between metal contacts, forming vertical crossbar devices. Forming-free, compliance-free resistive switching between non-volatile states is demonstrated by applying voltage pulses and measuring the current response in time. We show non-volatile memory operation with an RON/ROFF of 102, programmable by 80 ns WRITE and ERASE operations. Multiple stable resistance states are achieved by modulating pulse width and amplitude, down to 60 ns, < 20 pJ operation. This demonstrates the capability of these devices for low-energy, fast-switching and multi-state programming. Resistance states were retained without fail at 150 °C over 104 s, showcasing the potential of these devices for long retention times and resilience to ageing. Low-energy resistive switching measurements were repeated under vacuum (8.6 mbar) showing unchanged characteristics and no dependence of the device on surrounding oxygen or water vapour. Using a technology computer-aided design (TCAD) tool, we explore the role of the semiconductor layer in tuning the device conductance and driving gradual resistive switching in 2D HfOx-based devices.","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" 3","pages":" 616-627"},"PeriodicalIF":8.0,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/nh/d4nh00508b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143021315","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

Semiconductor photocatalytic antibacterial materials and their application for bone infection treatment

IF 8 2区材料科学

Nanoscale Horizons Pub Date : 2025-01-14 DOI: 10.1039/D4NH00542B

Ruizhong He, Yulong Gu, Jiye Jia, Feng Yang, Ping Wu, Pei Feng and Cijun Shuai

{"title":"Semiconductor photocatalytic antibacterial materials and their application for bone infection treatment","authors":"Ruizhong He, Yulong Gu, Jiye Jia, Feng Yang, Ping Wu, Pei Feng and Cijun Shuai","doi":"10.1039/D4NH00542B","DOIUrl":"10.1039/D4NH00542B","url":null,"abstract":"Bacterial infection in bone tissue engineering is a severe clinical issue. Traditional antimicrobial methods usually cause problems such as bacterial resistance and biosecurity. Employing semiconductor photocatalytic antibacterial materials is a more controlled and safer strategy, wherein semiconductor photocatalytic materials generate reactive oxygen species under illumination for killing bacteria by destroying their cell membranes, proteins, DNA, etc. In this review, P-type and N-type semiconductor photocatalytic materials and their antibacterial mechanisms are introduced. Type II heterojunctions, P–N heterojunctions, type Z heterojunctions and Schottky junctions have been reported to reduce the recombination of carriers, while element doping, sensitization and up-conversion luminescence expand the photoresponse range. Furthermore, the applications of semiconductor photocatalytic antibacterial materials in bone infection treatment such as osteomyelitis treatment, bone defect repair and dental tissue regeneration are summarized. Finally, the conclusion and future prospects of semiconductor photocatalytic antibacterial materials in bone tissue engineering were analyzed.","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" 4","pages":" 681-698"},"PeriodicalIF":8.0,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143027560","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

Enhanced upconversion and photoconductive nanocomposites of lanthanide-doped nanoparticles functionalized with low-vibrational-energy inorganic ligands† 以低振动能无机配体功能化的镧掺杂纳米粒子增强上转换和光导纳米复合材料。

IF 8 2区材料科学

Nanoscale Horizons Pub Date : 2025-01-14 DOI: 10.1039/D4NH00555D

Jia-Ahn Pan, Xiao Qi and Emory M. Chan

{"title":"Enhanced upconversion and photoconductive nanocomposites of lanthanide-doped nanoparticles functionalized with low-vibrational-energy inorganic ligands†","authors":"Jia-Ahn Pan, Xiao Qi and Emory M. Chan","doi":"10.1039/D4NH00555D","DOIUrl":"10.1039/D4NH00555D","url":null,"abstract":"Upconverting nanoparticles (UCNPs) convert near-infrared (IR) light into higher-energy visible light, allowing them to be used in applications such as biological imaging, nano-thermometry, and photodetection. It is well known that the upconversion luminescent efficiency of UCNPs can be enhanced by using a host material with low phonon energies, but the use of low-vibrational-energy inorganic ligands and non-epitaxial shells has been relatively underexplored. Here, we investigate the functionalization of lanthanide-doped NaYF4 UCNPs with low-vibrational-energy Sn2S64− ligands. Raman spectroscopy and elemental mapping are employed to confirm the binding of Sn2S64− ligands to UCNPs. This binding enhances upconversion efficiencies up to a factor of 16, consistent with an increase in the luminescent lifetimes of the lanthanide ions. Annealing Sn2S64−-capped UCNPs results in the formation of a nanocomposite comprised of UCNPs embedded within an interconnected matrix of SnS2, enabling each UCNP to be electrically accessible through the semiconducting SnS2 matrix. This facilitates the integration of UCNPs into electronic devices, which we demonstrate through the fabrication of a UCNP–SnS2 photodetector that detects UV and near-IR light. Our findings show the promise of using inorganic capping agents to enhance the properties of UCNPs while facilitating their integration into optoelectronic devices.","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" 3","pages":" 596-604"},"PeriodicalIF":8.0,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142977021","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

Effects of porous hedgehog-like morphology and graphene oxide on the cycling stability and rate performance of Co3O4/NiO microspheres†

IF 8 2区材料科学

Nanoscale Horizons Pub Date : 2025-01-11 DOI: 10.1039/D4NH00504J

Guozhen Zhu, Xinsong Xu, Yiyao Zhang, Jiale Lian, Yuhan Li, Zhen Yang and Renchao Che

{"title":"Effects of porous hedgehog-like morphology and graphene oxide on the cycling stability and rate performance of Co3O4/NiO microspheres†","authors":"Guozhen Zhu, Xinsong Xu, Yiyao Zhang, Jiale Lian, Yuhan Li, Zhen Yang and Renchao Che","doi":"10.1039/D4NH00504J","DOIUrl":"10.1039/D4NH00504J","url":null,"abstract":"A porous hedgehog-like Co3O4/NiO/graphene oxide (denoted as PHCNO/GO) microsphere was prepared by a facile solvothermal method, followed by an annealing treatment under argon atmosphere. Benefiting from the thin Co3O4/NiO nanosheets with a large specific surface area, abundant pores distributed between the Co3O4/NiO nanosheets, and GO firmly wrapped around the surface of PHCNO microspheres, the PHCNO/GO microspheres showed excellent lithium storage performance. The Co3O4/NiO nanosheets provided numerous active sites, achieving a high reversible specific capacity. The pores distributed between the Co3O4/NiO nanosheets created numerous diffusion pathways for lithium ions and relieved stress from the charging/discharging process. Meanwhile, GO supported the PHCNO microspheres, enhancing their cycling stability. A high reversible specific capacity of 383.9 mA h g−1 was maintained after 1000 cycles at 3000 mA g−1. In addition, GO improved the conductivity of PHCNO microspheres and then achieved a good rate performance; a high reversible specific capacity of 526.7 mA h g−1 was obtained at 5000 mA g−1. This work provided a reference for synthesizing high-performance lithium-ion battery anode materials.","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" 3","pages":" 628-634"},"PeriodicalIF":8.0,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143045058","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

Biocomposites of 2D layered materials 二维层状材料的生物复合材料。

IF 8 2区材料科学

Nanoscale Horizons Pub Date : 2025-01-07 DOI: 10.1039/D4NH00530A

Mert Vural and Melik C. Demirel

{"title":"Biocomposites of 2D layered materials","authors":"Mert Vural and Melik C. Demirel","doi":"10.1039/D4NH00530A","DOIUrl":"10.1039/D4NH00530A","url":null,"abstract":"Molecular composites, such as bone and nacre, are everywhere in nature and play crucial roles, ranging from self-defense to carbon sequestration. Extensive research has been conducted on constructing inorganic layered materials at an atomic level inspired by natural composites. These layered materials exfoliated to 2D crystals are an emerging family of nanomaterials with extraordinary properties. These biocomposites are great for modulating electron, photon, and phonon transport in nanoelectronics and photonic devices but are challenging to translate into bulk materials. Combining 2D crystals with biomolecules enables various 2D nanocomposites with novel characteristics. This review has provided an overview of the latest biocomposites, including their structure, composition, and characterization. Layered biocomposites have the potential to improve the performance of many devices. For example, biocomposites use macromolecules to control the organization of 2D crystals, allowing for new capabilities such as flexible electronics and energy storage. Other applications of 2D biocomposites include biomedical imaging, tissue engineering, chemical and biological sensing, gas and liquid filtration, and soft robotics. However, some fundamental questions need to be answered, such as self-assembly and kinetically limited states of organic–inorganic phases in soft matter physics.","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" 4","pages":" 664-680"},"PeriodicalIF":8.0,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/nh/d4nh00530a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142996489","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