Nanoscale Horizons最新文献

{"title":"<i>Nanoscale Horizons</i> Emerging Investigator Series: Dr Yuefei Wang, Tianjin University, China.","authors":"","doi":"10.1039/d5nh90024g","DOIUrl":"https://doi.org/10.1039/d5nh90024g","url":null,"abstract":"<p><p>Our Emerging Investigator Series features exceptional work by early-career nanoscience and nanotechnology researchers. Read Yuefei Wang's Emerging Investigator Series article 'Full-color peptide-based fluorescent nanomaterials assembled under the control of amino acid doping' (https://doi.org/10.1039/D4NH00400K) and read more about him in the interview below.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" ","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143957287","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}

{"title":"Synthesis and characterization of individual high-entropy alloy particles for electrocatalytic water oxidation.","authors":"Muhammad Rauf, Gaukhar Askarova, Tianyu Bo, Michael V Mirkin","doi":"10.1039/d4nh00659c","DOIUrl":"https://doi.org/10.1039/d4nh00659c","url":null,"abstract":"<p><p>High-entropy alloys (HEAs) have attracted considerable attention as promising catalysts. Despite a rapidly growing number of publications in this area, characterization of HEA electrocatalytic activity and stability remains challenging. In this paper, we report rapid and scalable microwave-shock assisted synthesis of FeCoNiCuMnCr HEA and its characterization at a single particle level. HEA particles synthesized on HOPG without additional reagents or pre-/post-treatments exhibited a significant activity toward water oxidation in 0.1 M NaOH. Individual micrometer-sized FeCoNiCuMnCr HEA particles were imaged by scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDS) to show the uniform distribution of all six metals, and the potential dependence of the oxygen evolution reaction (OER) at its surface was probed by scanning electrochemical microscopy (SECM). Significant variations in onset potential of OER on different HEA particles were observed; however, no obvious correlation with the particle size was found. The HEA stability was confirmed by SEM/EDS imaging of the same FeCoNiCuMnCr particle after several hours of OER experiments and also by voltammetry and XRD analysis.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" ","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143957180","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}

{"title":"A comprehensive analysis from the basics to the application of V-cathodes in Zn-V static and flow batteries.","authors":"Yufei Li, Jie Chen, Guanjie He","doi":"10.1039/d5nh00125k","DOIUrl":"https://doi.org/10.1039/d5nh00125k","url":null,"abstract":"<p><p>Electrochemical energy storage devices using zinc anodes and aqueous solutions have the characteristics of low cost, easy manufacture, and intrinsic safety. As an important part of modern aqueous batteries, zinc batteries have attracted extensive attention in the academic community. Among them, vanadium-based materials have been widely gaining attention as cathode materials in static aqueous zinc-ion batteries owing to their multiple valence states and abundant resources. In addition, zinc-vanadium flow batteries using the vanadium electrolyte for energy storage have also been gradually developed, which further expanded the application of vanadium-based materials in aqueous zinc batteries. In this review, an overview of zinc-vanadium batteries (including static batteries and flow batteries) is briefly discussed, including their working mechanism, classification, structure, existing problems, and improvement strategies, for promoting further development of this field.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" ","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143955938","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}

{"title":"Bioactive metal sulfide nanomaterials as photo-enhanced chemodynamic nanoreactors for tumor therapy.","authors":"Houjuan Zhu, Chui Yu Chan, Jerry Zhi Xiong Heng, Karen Yuanting Tang, Casandra Hui Teng Chai, Hui Ling Tan, Xian Jun Loh, Enyi Ye, Zibiao Li","doi":"10.1039/d5nh00122f","DOIUrl":"https://doi.org/10.1039/d5nh00122f","url":null,"abstract":"<p><p>Metal sulfide nanomaterials (MeSNs) are highly promising for biomedical applications due to their low toxicity, good dispersibility, high stability, adjustable particle sizes, and good biocompatibility. Their unique chemical and light-conversion properties also enable them to function as photothermal or photodynamic agents, enhancing chemodynamic therapy (CDT) of tumors. This makes MeSNs valuable as photo-enhanced CDT nanoagents, advancing precision and multi-modal tumor treatment. This review examines recent advancements in MeSNs for photo-enhanced chemodynamic tumor ablation, comparing their effectiveness in CDT. It highlights the roles of photothermal, photodynamic, and photocatalytic effects in enhancing treatment efficacy. MeSN-based nanoreactors are categorized by composition into iron sulfide, copper sulfide, other unary, and multi-MeSNs for their applications in tumor therapy. Additionally, this review discusses challenges, limitations, and future biomedical applications of MeSNs, offering insights into their potential for next-generation cancer treatments.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" ","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143957226","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}

{"title":"Multifunctional Ti3C2Tx-alginate foams for energy harvesting and fire warning†","authors":"Bernd Wicklein, Hyunjoon Yoo, Geetha Valurouthu, Ji-Seok Kim, Mannan Khan, Manmatha Mahato, Federico Carosio, Yury Gogotsi and Il-Kwon Oh","doi":"10.1039/D5NH00049A","DOIUrl":"10.1039/D5NH00049A","url":null,"abstract":"<p >Foams that combine seemingly opposite properties, such as high thermal insulation and electrical conductivity, are highly sought after for modern-day advanced applications. However, achieving a balance of these properties necessitates careful tuning of material compositions. Here, we prepared ice-templated Ti<small>₃</small>C<small>₂</small>T<small>_<em>x</em></small>-alginate composite foams and investigated the role of Ti<small>₃</small>C<small>₂</small>T<small>_<em>x</em></small> MXene in triboelectric energy production, thermal insulation, and flame retardancy. Our results show that adding 5 wt% Ti<small>₃</small>C<small>₂</small>T<small>_<em>x</em></small> enhances the triboelectric output of 6 mm thick foams (380 V, 7.7 μA, 43 mW m<small>⁻²</small>) by 110%. Despite incorporating electrically conducting Ti<small>₃</small>C<small>₂</small>T<small>_<em>x</em></small>, these macroporous composite foams have a thermal conductivity of only 62 mW m<small>⁻¹</small> K<small>⁻¹</small>, while they also show flame-retardant properties, exhibiting self-extinguishing behavior. Finally, we demonstrate these composite foams for constructing smart fire alarm systems as they respond to small changes in electrical resistance induced by fire. Our findings prove that Ti<small>₃</small>C<small>₂</small>T<small>_<em>x</em></small> is a versatile filler for biopolymer foams, introducing complementary functionalities that can be exploited in energy and safety applications.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" 6","pages":" 1084-1095"},"PeriodicalIF":8.0,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/nh/d5nh00049a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143951177","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}

{"title":"CoWO4 nanoparticles with dual active sites for highly efficient ammonia synthesis†","authors":"Lian Duan, Zhencong Huang, Gen Chen, Min Liu, Xiaohe Liu, Renzhi Ma and Ning Zhang","doi":"10.1039/D5NH00120J","DOIUrl":"10.1039/D5NH00120J","url":null,"abstract":"<p >The electrochemical reduction reaction of NO<small>₃</small><small>⁻</small> (NO<small>₃</small>RR) represents a promising green technology for ammonia (NH<small>₃</small>) synthesis. Among various electrocatalysts, Co-based materials have demonstrated considerable potential for the NO<small>₃</small>RR. However, the NH<small>₃</small> production efficiency of Co-based materials is still limited due to challenges in the competitive hydrogen evolution reaction (HER) and hydrogenating oxynitride intermediates (*NO<small>_<em>x</em></small>). In this study, tungsten (W) and cobalt (Co) elements are co-incorporated to form cobalt tungstate (CoWO<small>₄</small>) nanoparticles with dual active sites of Co<small>²⁺</small> and W<small>⁶⁺</small>, which are applied to optimize the hydrogenation of NO<small>_<em>x</em></small> and decrease the HER, thereby achieving a highly efficient NO<small>₃</small>RR to NH<small>₃</small>. Theoretical calculations indicate that the Co sites in CoWO<small>₄</small> facilitate the adsorption and hydrogenation of *NO<small>_<em>x</em></small> intermediates, while W sites suppress the competitive HER. These dual active sites work synergistically to enhance NH<small>₃</small> production from the NO<small>₃</small>RR. Inspired by these calculations, CoWO<small>₄</small> nanoparticles are synthesized using a simple ion precipitation method, with sizes ranging from 10 to 30 nm. Electrochemical performance tests demonstrate that CoWO<small>₄</small> nanoparticles exhibit a high faradaic efficiency of 97.8 ± 1.5% and an NH<small>₃</small> yield of 13.2 mg h<small>⁻¹</small> cm<small>⁻²</small>. <em>In situ</em> Fourier transform infrared spectroscopy characterizes the enhanced adsorption and hydrogenation behaviors of *NO<small>_<em>x</em></small> as well as a minimized HER on CoWO<small>₄</small>, which contributes to the high efficiency and selectivity to NH<small>₃</small>. This work introduces CoWO<small>₄</small> nanoparticles as an electrocatalytic material with dual active sites, contributing to the design of electrocatalysts for NH<small>₃</small> synthesis.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" 6","pages":" 1096-1106"},"PeriodicalIF":8.0,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143958687","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}

{"title":"Inverse design of chiral structures for giant helical dichroism†","authors":"Chia-Chun Pan, Munseong Bae, Hongtao Wang, Jaesung Lim, Ranjith Rajasekharan Unnithan, Joel K. W. Yang, Haejun Chung and Sejeong Kim","doi":"10.1039/D5NH00058K","DOIUrl":"10.1039/D5NH00058K","url":null,"abstract":"<p >Investigating chiral light-matter interactions is essential for advancing applications in sensing, imaging, and pharmaceutical development. However, the chiroptical response in natural chiral molecules and subwavelength chiral structures is inherently weak, with the conventional characterization tools limited to optical methods that utilize circularly polarized light. To overcome this, optical vortex beams, characterized by helical wavefronts, have emerged as a compelling research focus. Helical dichroism (HD) represents the differential absorbance of vortex beams with opposite signs of topological charges. By using inverse design for topology optimization, we design the chiral structure for enhanced HD response under OAM beam incidence, demonstrating a giant HD response of ∼107% with topological charges |±<img>| = 3 at the wavelength of 800 nm. This study reveals distinct helicity-dependent interactions between the chiral structure and OAM beams, highlighting the potential for highly sensitive chiral devices.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" 6","pages":" 1077-1083"},"PeriodicalIF":8.0,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143951175","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}

{"title":"Emulating working memory consolidation with a 1D supramolecular nanofibre-based neuromorphic device†","authors":"Tejaswini S. Rao, Subi J. George and Giridhar U. Kulkarni","doi":"10.1039/D5NH00034C","DOIUrl":"10.1039/D5NH00034C","url":null,"abstract":"<p >Cognitive activities in the human brain are driven by the processes of learning and forgetting. However, there is yet another process namely consolidation, which stands as an interface for saving important learnt information from forgetting. Consolidation is imperative for the formation of stable, long-term memories and is an integral part of the memory formation process. Despite significant efforts in emulating learning, forgetting, and several synaptic functionalities through various neuromorphic devices, the efforts to understand the consolidation process are insignificant. Among the two forms of consolidation, namely long-term and working memory consolidations, the present study explores the latter that stabilizes transient sensory input and enhances retention by counteracting decay-based forgetting. Herein, a two-terminal optically active resistive neuromorphic device based on 1D supramolecular nanofibres is utilized to emulate and quantify consolidation, basically, in working memory. The phenomenon aligns with mathematical models using two-time constants, drawing parallels with biological mechanisms. Given the excellent optical and humidity response of the nanofibres, the emulation was achieved by employing optical input as stimuli and enabling the modulation of the photoresponse by exposure to different humidities. By defining consolidation as a function of humidity, the study underscores its role as an active control, reinforcing the connection between environmental factors and memory stability. The variation in consolidation was studied during the learning–relearning, change in environment (hydrated and dehydrated state), fatigue, and habituation processes. Notably, a consolidation parameter is defined to quantify the process of consolidation that is an inseparable process of cognition.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" 6","pages":" 1192-1202"},"PeriodicalIF":8.0,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143951627","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}

{"title":"Correction: ROS self-generation and hypoxia self-enhanced biodegradable magnetic nanotheranostics for targeted tumor therapy","authors":"Jinghua Li, Yun Liu, Xiaonan Li, Gaofeng Liang, Changshun Ruan and Kaiyong Cai","doi":"10.1039/D5NH90020D","DOIUrl":"https://doi.org/10.1039/D5NH90020D","url":null,"abstract":"<p >Correction for ‘ROS self-generation and hypoxia self-enhanced biodegradable magnetic nanotheranostics for targeted tumor therapy’ by Jinghua Li <em>et al.</em>, <em>Nanoscale Horiz.</em>, 2020, <strong>5</strong>, 350–358, https://doi.org/10.1039/C9NH00490D.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" 6","pages":" 1224-1226"},"PeriodicalIF":8.0,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/nh/d5nh90020d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144148226","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}

{"title":"Spatially resolved optoelectronic puddles of WTe2–2D Te heterostructure†","authors":"Thi Uyen Tran, Ngoc Thanh Duong, Dae Young Park, Jaeuk Bahng, Hai Phuong Duong, Van Dam Do, Mun Seok Jeong and Seong Chu Lim","doi":"10.1039/D5NH00027K","DOIUrl":"10.1039/D5NH00027K","url":null,"abstract":"<p >Two-dimensional (2D) semiconductors have attracted significant scientific interest because of their optical properties. Their applications in optoelectronic devices can be further expanded by combining them to form heterostructures. We characterized a WTe<small>₂</small>–2D Te heterostructure through local probing of the photocurrent with respect to the magnitude, phase, and position. Photocurrent generation within the device is divided into distinct regions: photo-thermoelectric effects occur solely at the 2D Te–Au junction area, PV-dominant effects at the 2D–WTe<small>₂</small> interface, and thermoelectric-to-photovoltaic crossover effects at the WTe<small>₂</small>–2D Te overlap area. These different photocurrents cannot be fused into a single domain because each area is governed by different generation mechanisms, which depend on the location of the device. The power dependence of each photocurrent type also varies within the device. Our results indicate that careful material selection and device structure design, based on the electronic, optical, and thermal properties of the channel materials, are essential to avoid forming different optoelectronic puddles that could counteract each other within a single device.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" 6","pages":" 1215-1223"},"PeriodicalIF":8.0,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143951454","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}