Nanoscale Horizons最新文献

{"title":"A non-van der Waals platform for deep-subwavelength twist-polaritonics based on β-Ga₂O₃ nanoflakes.","authors":"Liyan Wang, Kaijun Feng, Shuai Liu, Jiehui Tian, Xiangdong Guo, Lin Geng, Yuchuan Xiao, Debo Hu, Lixing Kang, Qing Dai","doi":"10.1039/d6nh00044d","DOIUrl":"10.1039/d6nh00044d","url":null,"abstract":"<p><p>Twist-polaritonics provides precise control of light-matter states through the stacking of atomically smooth, anisotropic layers, but has been restricted to the van der Waals (vdW) crystals. Non-vdW crystals, despite their symmetry-broken dielectric responses ideal for exotic polaritons, are challenging to prepare as suitable flakes due to their rigid 3D bonding networks, thus limiting the implementation of deep-subwavelength twist-polaritonics. We established a non-vdW polaritonic platform using ultrathin, single-crystalline β-Ga₂O₃ nanoflakes synthesized by exploiting its anisotropic bonding hierarchy on the quasi-layered (100)B plane. These flakes exhibited deep-subwavelength polariton confinement beyond <i>λ</i>/20. Moreover, their atomic-scale flatness enabled the assembly of twisted bilayers, in which we observed a topological transition of the polariton dispersion from hyperbolic to elliptical, directly controlled by the twist angle. This work positions β-Ga₂O₃ as a high-performance nanophotonic platform beyond the vdW family, while proposing that anisotropic bonding hierarchy provides a general strategy to unlock non-vdW twist-polaritonic functionality in a wide range of bulk crystals.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" ","pages":"2128-2137"},"PeriodicalIF":6.4,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148256288","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":"Stochastic sampling <i>via</i> synaptic delay in spiking RBMs using integrated resistive and threshold switching devices.","authors":"Suyeon Jang, Dae Kyu Lee, Uicheol Shin, Yu Gyeong Kang, Youngsoo Choi, Dongmin Han, Joon Young Kwak, Sangbum Kim","doi":"10.1039/d6nh00158k","DOIUrl":"10.1039/d6nh00158k","url":null,"abstract":"<p><p>Spiking neural networks (SNNs) have emerged as promising low-power architectures for next-generation neuromorphic hardware because spike-based operation naturally supports spatiotemporal information processing. Among SNN models, spiking restricted Boltzmann machines (spiking RBMs) enable sampling-based learning and inference, but stable operation requires sufficient stochasticity at the neuron and synapse levels. Under temporally uniform input spike trains, such as sensor-driven inputs, limited intrinsic randomness can degrade learning performance. Here, a delay-based hardware strategy is presented in which synaptic propagation delay serves as a source of stochasticity for sampling in spiking RBMs. The corresponding synaptic unit cell consists of a synapse for weight storage and a delay module for temporal stochasticity. The delay module, based on serially integrated resistive random-access memory (RRAM) and threshold-switching (TS) devices, enables tuning of the TS turn-on delay through the RRAM resistance. Higher resistance increases the mean delay, and the measured delays follow a log-normal distribution. Compact modeling and circuit-level simulation confirm compatibility of the delay behavior with CMOS neuron-synapse circuits. Application of delay distributions to MNIST learning in spiking RBMs yields higher accuracy than both a no-delay baseline and conventional stochastic implementations based on random number generators. The RRAM-TS-based synaptic delay circuit therefore offers an efficient hardware primitive for introducing stochasticity into neuromorphic systems without complex and power-consuming additional peripherals.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" ","pages":"2115-2127"},"PeriodicalIF":6.4,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148256320","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":"Regulating surface oxygen species on activated carbon <i>via</i> plasma treatment to boost zinc-ion adsorption for zinc-ion hybrid capacitors.","authors":"Yongxia Zhang, Xuchao Yang, Xupeng Liu, Yunlong Yang, Fen Ran","doi":"10.1039/d6nh00200e","DOIUrl":"10.1039/d6nh00200e","url":null,"abstract":"<p><p>Activated carbon (AC) is an ideal cathode for zinc-ion hybrid capacitors (ZIHCs) due to its high specific surface area, rational pore structures, good electrical conductivity, and chemical stability. However, the specific capacity of AC remains far below theoretical limits, primarily due to its poor wettability, which leads to inadequate penetration into deep micropores/mesopores, leaving active sites inaccessible and hindering ion diffusion and adsorption, thus degrading performance. Herein, we report a room-temperature air plasma strategy for precisely tuning oxygen functional groups on AC cathodes while keeping their bulk structure intact. By controlling the plasma treatment time, the surface content of the groups is precisely modulated. These oxygen functional groups significantly enhance the electrolyte wettability of the AC electrode, increasing the effective interface area accessible to electrolyte ions. This promotes efficient ion adsorption and diffusion, leading to markedly improved specific capacitance, rate capability, and cycling stability. Moreover, the assembled large-area pouch cells demonstrate excellent stability and practical applicability. This work highlights the importance of carbon electrode surface properties in enhancing the electrochemical performance and will inspire further surface modification strategies for advanced energy storage devices.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" ","pages":"2184-2190"},"PeriodicalIF":6.4,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148256341","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":"Exciton delocalization and optical synaptic functionality in conjugated polymer-In₂Se₃ heterostructures.","authors":"Md Saifuddin, Shantanu Dhara, Sourav Dey, Suman K Ghosh, P K Giri","doi":"10.1039/d6nh00194g","DOIUrl":"10.1039/d6nh00194g","url":null,"abstract":"<p><p>Investigations into the photoresponses of organic-inorganic heterostructures (OIHs) with similar band alignments have provided conflicting results, with some studies showing ultrafast responses and others reporting slower responses with enhanced photomemory effects. Despite progress, the impact of the organic layer's molecular structure and excitonic coupling on OIH photoresponse times remains unclear. To address this, we fabricated OIHs utilizing poly(3-alkylthiophene) (P3AT) [where alkyl (A) = dodecyl (DD) or hexyl (H)]-based conjugated polymers and indium selenide (In₂Se₃). P3DDT, with its low crystallinity and poor exciton delocalization, exhibits a fast photoresponse, whereas P3HT, with better-ordered crystallites and pronounced exciton delocalization, shows a slower photocurrent rise and photomemory effects. This study uncovers the role of exciton delocalization or the exciton diffusion length of the conjugated polymer in determining the optical response of an OIH device. Further, we investigated the synaptic properties of P3HT/In₂Se₃, revealing short-term memory, long-term memory, and learning-experience behavior. An artificial neural network simulation achieved 88% accuracy in recognizing MNIST handwritten digits, which is significant in the context of OIH synapses. This work provides new insights by revealing the intricate relationships between material properties, exciton dynamics, and OIH charge-transfer pathways, paving the way for the development of more-efficient and -effective neuromorphic devices.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" ","pages":"2147-2157"},"PeriodicalIF":6.4,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148256278","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":"Advances in wearable sensing technologies and intelligent systems for healthcare and fitness.","authors":"Hojoong Kim, David Chong, Ikhwan Shin, Woon-Hong Yeo","doi":"10.1039/d6nh00099a","DOIUrl":"10.1039/d6nh00099a","url":null,"abstract":"<p><p>Wearable sensing technologies and intelligent systems have gained significant attention due to their potential to revolutionize healthcare and fitness monitoring. These technologies enable the real-time continuous detection of various physiological and physical parameters, aiding in rehabilitation, fitness optimization, and personalized medicine. Recent advances show the integration of artificial intelligence with wearable sensors and electronics, offering clinical-grade home healthcare, accurate performance monitoring, and feedback-based health management. This review summarizes the latest progress in sensor technologies, device form factors, sensing modalities, data analysis algorithms, integrated electronics, and their applications to human health and fitness.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" ","pages":"2002-2026"},"PeriodicalIF":6.4,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148402925","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":"Entropy engineering in multimetallic hydroxides and oxides: a new paradigm for electrocatalytic oxygen evolution.","authors":"Chandrasekaran Pitchai, Mahalakshmi Vedanarayanan, Chih-Ming Chen","doi":"10.1039/d6nh00108d","DOIUrl":"10.1039/d6nh00108d","url":null,"abstract":"<p><p>The oxygen evolution reaction (OER) remains a central kinetic bottleneck in electrochemical energy-conversion technologies, motivating intensive exploration of earth-abundant electrocatalysts that deliver high activity and long-term stability. In recent years, high-entropy oxides and hydroxides have emerged as a powerful and versatile catalyst platform, in which configurational entropy stabilizes multimetallic, defect-rich structures with highly tunable electronic and geometric environments. This review provides a comprehensive overview of entropy engineering strategies for oxides and hydroxides in OER electrocatalysis. We discuss the fundamental thermodynamic principles underpinning high-entropy stabilization, key structure-property relationships arising from lattice distortion, sluggish diffusion, and multication \"cocktail\" effects, and recent advances across crystalline and amorphous high-entropy oxides, perovskites, spinels, and high-entropy hydroxides. Particular emphasis is placed on mechanistic insights into adsorbate evolution, lattice oxygen-mediated, and emerging hybrid OER pathways in disordered lattices, as well as the role of <i>operando</i> reconstruction and oxygen vacancy dynamics. Finally, current challenges and future perspectives are outlined, highlighting the need for entropy-aware theoretical modeling, <i>operando</i> characterization, machine-learning-guided catalyst discovery, and expansion toward neutral-media and multifunctional electrocatalysis. Collectively, this review establishes high-entropy materials as a transformative paradigm for next-generation, earth-abundant OER catalysts.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" ","pages":"2053-2070"},"PeriodicalIF":6.4,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148256297","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":"Fostering a collaborative partnership with AI agents in materials/nanoscience.","authors":"Renzhi Ma","doi":"10.1039/d6nh90023b","DOIUrl":"10.1039/d6nh90023b","url":null,"abstract":"<p><p>To realize a productive human-AI partnership, AI systems must offer transparent, interpretable, and reliable outputs that complement human creativity and critical thinking, avoiding both over-reliance and uncritical acceptance. Emerging approaches, such as expert-guided collaboration and domain-specific reasoning, are beginning to address these challenges. Ultimately, aligning AI agents with diverse scientific values and contexts will foster a balanced and collaborative research environment.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" ","pages":"1999-2001"},"PeriodicalIF":6.4,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148256305","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":"Oxygen-driven doping of conjugated polymers in aqueous media <i>via</i> anion adsorption.","authors":"Shion Kaneko, Masaki Ishii, Kenichi Sakai, Hideki Sakai, Jun Takeya, Katsuhiko Ariga, Yu Yamashita","doi":"10.1039/d6nh00104a","DOIUrl":"10.1039/d6nh00104a","url":null,"abstract":"<p><p>Solution-based chemical doping provides a simple and effective approach to controlling the carrier concentration of organic semiconductors through redox reactions. However, the role of molecular oxygen, which is the most abundant oxidant in air, has remained unclear. In this study, we demonstrate efficient oxygen-driven doping in aqueous solution by employing highly hydrophobic anions. Specifically, the use of tetrakis(pentafluorophenyl)borate (TFPB^-) as the dopant anion significantly enhances the doping efficiency and results in high electrical conductivity of up to 200 S cm^-1. This enhancement is attributed to increased anion activity at the solid-liquid interface. Quartz crystal microbalance measurements reveal that hydrophobic anions spontaneously aggregate in the aqueous phase and rapidly adsorb onto the organic semiconductor surface within 15 seconds. This work presents a simple and efficient strategy for oxygen-mediated doping. It also introduces a new design principle for controlling doping processes through interfacial molecular interactions.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" ","pages":"2178-2183"},"PeriodicalIF":6.4,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148256360","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":"Integrating molecular dynamics simulations to enable rational assembly of immune signals for immunotherapy.","authors":"Eugene Froimchuk, Meenal Jain, Abhilash Sahoo, Camilla Edwards, Shrey Shah, Robert S Oakes, Silvina Matysiak, Christopher M Jewell","doi":"10.1039/d6nh00215c","DOIUrl":"10.1039/d6nh00215c","url":null,"abstract":"<p><p>Despite the importance of biophysical cues in tuning the immune response, the connections between these cues and immunological outcomes are poorly understood in the context of immunotherapies. To study these connections, our lab designed therapeutic complexes that are self-assembled from peptide antigens modified with cationic amino acid residues and anionic, nucleic acid-based modulatory cues. We utilized the self-assembly platform as a tool to understand how tuning the biophysical properties of immune signals impacts molecular interactions during self-assembly. Here, we implemented molecular dynamics simulations as a tool to study how molecular interactions between cationic peptides and anionic modulatory cues change as a function of peptide design. Using temperature replica exchange molecular dynamics, we compare molecular contacts - including hydrogen bonding and salt bridges - across a library of peptide sequences that are mistakenly attacked during autoimmune disease. We show that peptides with higher cationic charge and peptides anchored with arginine residues form more electrostatic interactions during self-assembly than peptides with lower cationic charge and peptides anchored with lysine residues, respectively. Surface plasmon resonance studies revealed that in addition to the type of anchored amino acid residue, the distribution of charge across the peptide also impacts the binding affinity of self-assembled immune cues. <i>In vitro</i> primary cell studies using these same antigen designs revealed signaling that was likewise sensitive to the total charge, charge distribution, and type of anchored amino acid residues within the therapeutic complexes. Taken together, these insights help intuit how to modify biophysical cues to self-assemble a range of peptide antigens for distinct disease targets. This granular understanding of nanomaterial-immune interactions contributes to more rational immunotherapy design.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" ","pages":"2191-2203"},"PeriodicalIF":6.4,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13267778/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148256352","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":"<i>Nanoscale Horizons</i> Emerging Investigator Series: Dr Luiz Henrique Vieira, São Carlos Institute of Chemistry at the University of São Paulo, Brazil.","authors":"","doi":"10.1039/d6nh90016j","DOIUrl":"10.1039/d6nh90016j","url":null,"abstract":"<p><p>Our Emerging Investigator Series features exceptional work by early-career nanoscience and nanotechnology researchers. Read Luiz Henrique Vieira's Emerging Investigator Series article 'Advances in the direct conversion of CH₄ and CO₂ into acetic acid over bimetallic catalysts supported on H-ZSM-5' (https://doi.org/10.1039/D5NH00496A) and read more about him in the interview below.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" ","pages":"1748-1749"},"PeriodicalIF":6.4,"publicationDate":"2026-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147757579","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}