Nanoscale最新文献

{"title":"Plasmonic gold bowtie nanoantennas for dual infrared and Raman detection of a cytochrome -type oxidase","authors":"Ariadna Murillo Bello,Mohamed A Khaled,Thorsten Friedrich,Petra Hellwig,Nicolas Javahiraly,Hicham Majjad","doi":"10.1039/d6nr00784h","DOIUrl":"https://doi.org/10.1039/d6nr00784h","url":null,"abstract":"Plasmonic nanoantennas offer powerful opportunities for enhancing vibrational spectroscopic signals of biomolecules at surfaces, yet their application to structurally fragile membrane proteins remains challenging. Here, lithographically defined gold bowtie nanoantennas are investigated as multifunctional plasmonic substrates for the surface-enhanced vibrational spectroscopy detection of a membrane protein. Three bowtie geometries were rationally designed to provide strong and localized electromagnetic field confinement in spectroscopically relevant regions, as supported by electromagnetic simulations and experimental characterization. Using a site-specific Ni-NTA immobilization linker, the membrane protein cytochrome bd-I from Escherichia coli was immobilized at micromolar concentration and probed by both infrared and Raman spectroscopy. Surface-Enhanced Infrared Absorption Spectroscopy (SEIRAS) analysis of the amide I band demonstrated the preservation of the predominantly α-helical conformation upon immobilization. The direct comparison of data obtained on gold nanoparticle substrates, on silicon and on the bowtie nanoantennas revealed substantially higher signal intensities of the amide I band. Surface-Enhanced Raman Spectroscopy (SERS) demonstrated a pronounced increase of the signal intensity of the protein-and heme-specific vibrational markers on the bow tie substrate. Together, these results establish gold bowtie nanoantennas as a robust and reproducible plasmonic platform enabling sensitive and selective, label-free infrared and Raman detection of membrane proteins at micromolar concentration, with potential for optical biosensing platforms targeting complex membrane protein systems.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"33 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Engineered Zn-doped magnetite nanoparticles as high-performance tracers for ultrasensitive atomic magnetometry.","authors":"Hanzhang Xiao, Xuefei Sun, Qilong Li, Gang Shen, Hongxia Sun, Li Yao, Wenchao Li","doi":"10.1039/d6nr01514j","DOIUrl":"https://doi.org/10.1039/d6nr01514j","url":null,"abstract":"<p><p>Atomic magnetometry (AM) enables ultrasensitive magnetic biosensing under weak fields, yet its performance is often limited by a persistent mismatch between AM operating principles and the magnetic nanoparticle (MNP) tracers. Here we develop AM-specific tracers by engineering Zn-doped iron oxide nanoparticles (IONPs) with size control and surface modification to balance colloidal stability and high remanence. The optimal dopamine-modified 19 nm Zn-doped IONPs exhibit a remanence signal approximately 100 times higher than that of VivoTrax, enabling pT-level AM detection from as few as 160 labeled 4T1 and MCF-7 cells with only about 7 ng of tracer. Moreover, an AM-based small-animal system achieves precise subcutaneous detection of small tumor cell clusters in rats. This work identifies composition tuning, size regulation, and surface engineering as critical parameters to maximize the nanoscale remanence of tracers for AM, offering a robust blueprint for future advancements in ultra-sensitive biosensing.</p>","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149163714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sulfidation-modulated high-entropy Prussian blue analogues for enhanced oxygen evolution electrocatalysis.","authors":"Jiayuan Zhang, Kaixin Zhu, Xizhong Yan, Shengyu Wei, Shengliang Qi, Binglian Liang, Xuye Jiang, Ming Hu, Hefeng Zhang, Weiguang Ma, Xu Zong","doi":"10.1039/d6nr02946a","DOIUrl":"https://doi.org/10.1039/d6nr02946a","url":null,"abstract":"<p><p>The development of efficient and durable electrocatalysts for the oxygen evolution reaction (OER) remains a critical challenge for water splitting due to the sluggish reaction kinetics and limited catalyst durability. Herein, we report a facile two-step electrodeposition strategy to fabricate a sulfidation-modulated high-entropy Prussian blue analogue directly on carbon paper (HE-PBA-S/CP) as an efficient self-supported OER electrocatalyst. The high-entropy PBA serves as a compositionally complex multimetal precursor, while thiourea-assisted sulfidation modulates the surface/interface characteristics and electronic environments of the constituent metal centers, substantially increasing the electrochemically accessible interface and facilitating the formation of catalytically active multimetal oxyhydroxide species during the OER. As a result, the optimized HE-PBA-S/CP catalyst requires an overpotential of only 167 mV to deliver a current density of 10 mA cm^-2 together with good stability for 120 h at 100 mA cm^-2 in alkaline media, significantly outperforming the pristine HE-PBA/CP catalyst and its composition-controlled sulfidation-modulated PBA counterparts. This work highlights the integration of high-entropy precursor design and sulfidation-assisted surface/interface modulation as an effective strategy for the rational design of cost-effective and high-performance electrocatalysts for water splitting.</p>","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149163373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Naringenin-citric acid carbon dots attenuate acute colitis by regulating oxidative stress, inflammation, and gut dysbiosis.","authors":"Xin Dai, Jiayi Sun, Wenlong Wang, Wenqi Ma, Jianyu He, Mingzhen Zhang","doi":"10.1039/d6nr02463g","DOIUrl":"https://doi.org/10.1039/d6nr02463g","url":null,"abstract":"<p><p>Ulcerative colitis (UC) is driven by excessive oxidative stress, persistent inflammation, and gut microbial dysbiosis, but current treatments often yield limited benefits and cause unwanted systemic adverse effects. In this study, carbon dots (NC-CDs) were synthesized from naringenin and citric acid through a simple one-step hydrothermal method. The obtained NC-CDs are uniformly sized at approximately 3 nm with abundant surface oxygen-containing groups, affording good water solubility and robust free radical scavenging activity. <i>In vitro</i> tests confirmed the favorable biocompatibility of NC-CDs, which effectively eliminated intracellular ROS and inhibited the production of pro-inflammatory cytokines. In a DSS-induced colitis mouse model, oral NC-CDs selectively accumulated in inflamed colonic regions, thereby relieving mucosal damage, improving colitis symptoms, and recovering gut microbial balance. In comparison with an uncarbonized naringenin-citric acid precursor mixture, NC-CDs exhibit superior therapeutic efficacy, demonstrating that the unique nanostructure of carbon dots, rather than simple free small-molecule precursors, contributes to the potent anti-colitis performance. This work suggests that carbon dots derived from natural compounds are promising therapeutic agents for UC treatment.</p>","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149163430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 water/sulfolane/γ-valerolactone ternary hybrid electrolyte enables highly stable zinc metal anodes at 60 °C.","authors":"Lingjie Long, Siying Wang, Yixian Xing, Xiuze Li, Zhijie Zhang, Qingsong Hu, Leqing Deng, Lidong Wang","doi":"10.1039/d6nr02704k","DOIUrl":"https://doi.org/10.1039/d6nr02704k","url":null,"abstract":"<p><p>The practical application of aqueous zinc metal batteries (AZMBs) is plagued by notorious zinc dendrite growth and water-caused side reactions (hydrogen evolution, Zn corrosion, <i>etc</i>.), especially at high temperatures. Rising temperatures will increase water activity and water-related side reactions, significantly undermining the reversibility and lifespan of AZMBs at high temperatures. Herein, sulfolane (SL) and γ-valerolactone (VA) are synergistically introduced as cosolvents to remarkably suppress water activity and water-involving side reactions at a high temperature of 60 °C by disturbing the H-bond network between water molecules and restructuring the Zn²⁺ solvation sheath. The optimized 5SL-4VA-1H₂O ternary hybrid electrolyte enables reversible and dendrite-free Zn deposition at 60 °C with a coulombic efficiency of up to 99.5% in a Zn∥Cu cell and unprecedentedly long-term stability in a Zn∥Zn cell (4772 h). Furthermore, the assembled zinc metal full cell exhibits excellent cycling stability with no capacity decay after 5163 cycles along with an impressive duration of 1060 h at 60 °C. This work provides a new perspective on electrolyte design for high-temperature AZMBs.</p>","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149163645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carrier dynamics govern photovoltaic–photocatalytic functionality in graphitic carbon nitride/transition metal dichalcogenide heterostructures","authors":"Shuangli Yue,Dong-Hui Xu,Yitong Wang,Rong-Hui Tang,Li Zhang,Yunpeng Lu,Xian Wang,Mingli Yang","doi":"10.1039/d6nr02097f","DOIUrl":"https://doi.org/10.1039/d6nr02097f","url":null,"abstract":"The rapid growth of global energy demand and excessive fossil-fuel consumption have intensified the urgent need for efficient solar-energy-conversion materials. However, the vast configurational space of heterostructures makes reliable screening particularly challenging, especially when attempting to distinguish whether a given system functions as a photocatalyst or a photovoltaic material. Current design strategies predominantly rely on static electronic-structure descriptors, such as band alignment and interfacial charge transfer, which capture only equilibrium energetics and fail to reflect the nonequilibrium evolution of photogenerated carriers. Here, we combine first-principles calculations with nonadiabatic molecular dynamics (NAMD) simulations to establish a static-to-dynamic evaluation strategy for graphitic carbon nitride/transition metal dichalcogenide (g-C3N4@TMD) heterostructures constructed from experimentally realized monolayers. We demonstrate that static descriptors alone are insufficient to determine functionality, whereas carrier dynamics governs the functional behavior of these systems. Notably, g-C3N4@HfS2 and g-C3N4@TiS2 satisfy conventional Z-scheme criteria based on band alignment. However, NAMD simulations reveal that interlayer carrier transfer dominates over selective recombination, precluding the formation of an effective Z-scheme pathway. In contrast, g-C3N4@MoS2 and g-C3N4@WS2 exhibit ultrafast interlayer carrier transfer and strongly suppressed electron–hole recombination. Quantitatively, recombination times are approximately two orders of magnitude longer than the corresponding transfer times for g-C3N4@MoS2, indicating pronounced kinetic asymmetry that favors long-lived charge separation and further supports its photovoltaic potential, with an idealized Scharber-model PCE estimate approaching 16%. These findings demonstrate that the kinetic competition between carrier transfer and recombination provides a critical dynamic criterion for evaluating and refining the functional classification inferred from static descriptors. More broadly, this work provides a general strategy for integrating static and dynamic descriptors into the evaluation of low-dimensional energy materials, offering new insights into interfacial charge-transfer mechanisms and guiding the rational design of next-generation solar energy conversion systems.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"1 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 and removal of expression of concern: A hysteresis-free perovskite transistor with exceptional stability through molecular cross-linking and amine-based surface passivation.","authors":"Hyeong Pil Kim, Maria Vasilopoulou, Habib Ullah, Salma Bibi, Anderson Emanuel Ximim Gavim, Andreia Gerniski Macedo, Wilson Jose da Silva, Fabio Kurt Schneider, Asif Ali Tahir, Mohd Asri Mat Teridi, Peng Gao, Abd Rashid Bin Mohd Yusoff, Mohammad Khaja Nazeeruddin","doi":"10.1039/d6nr90177h","DOIUrl":"https://doi.org/10.1039/d6nr90177h","url":null,"abstract":"<p><p>Correction and removal of expression of concern for 'A hysteresis-free perovskite transistor with exceptional stability through molecular cross-linking and amine-based surface passivation' by Hyeong Pil Kim <i>et al.</i>, <i>Nanoscale</i>, 2020, <b>12</b>, 7641-7650, https://doi.org/10.1039/C9NR10745B.</p>","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149134526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ligand-enhanced 3D-printable natural nanomaterials for recovering rare earths from saline waste streams.","authors":"Nishat Paul, Naimul Arefin, Andres Sanchez, S M Tanveer Mahtab, Bhaskar K C, Shehab Shahreyar, Nadim Mahmud, Shuhao Liu, Mahdi Malmali, Gordon Christopher, Gergely Nagy, Danny Reible, Minxiang Zeng","doi":"10.1039/d6nr02383e","DOIUrl":"https://doi.org/10.1039/d6nr02383e","url":null,"abstract":"<p><p>Engineering the surface chemistry of nanomaterials enables diverse applications but requires a clear understanding of how functional groups interact with nanomaterials. Here, a systematic study on the ligand-matrix chemistry of naturally occurring clay-based nanomaterials is conducted to enhance the recovery of rare-earth elements (REE) over common competing salt ions. Our results reveal a clear correlation among functional groups, surface chemistry, and equilibrium adsorption capacity, where transitioning from electron-withdrawing to electron-donating groups resulted in an enhancement of equilibrium adsorption capacity (more than 9 times). The engineered particles exhibit a strong affinity for REE over competing ions found in brine and wastewater (<i>e.g.</i>, Na⁺, Mg²⁺, and Ca²⁺), facilitating highly selective REE recovery from complex environments containing trace-level REE (exceeding 85% recovery in oilfield produced water). Furthermore, the functionalized clay nanoparticles are formulated into 3D-printable inks for fabricating porosity-controlled, customizable adsorbent prototypes, where the controlled macro-channel architecture enables improved adsorption kinetics (almost doubling the efficiency over a 24 h period) compared to chunk adsorbents of the same chemical composition without requiring external stirring, highlighting the potential for sustainable REE extraction.</p>","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149134112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An <i>in situ</i> small angle X-ray scattering study of carboxylate ligand mediated growth of CdSe nanoplatelets.","authors":"Haohui Xu, Zhixi Wei, Kun Qian, Zehao Hao, Zhuo Zhao, Ruizhao Shi, Yiwen Li, Guangfeng Liu, Yan Li, Chaodan Pu, Jianrong Zeng","doi":"10.1039/d6nr02617f","DOIUrl":"https://doi.org/10.1039/d6nr02617f","url":null,"abstract":"<p><p>Group II-VI semiconductor nanoplatelets (NPLs) have unique quantum confinement effects and large specific surface areas, offering distinct advantages in advanced optoelectronic devices, catalysis, and biomedical sensing. Carboxylate ligands are widely used in NPL synthesis; however, their roles in the synthesis process remain insufficiently understood. Herein, we systematically investigated the formation process of CdSe NPLs <i>via</i> a one-pot method using carboxylate ligands with different chain lengths and proportions. We found that ligand chain length can significantly influence the NPL formation. The ratio of short- to long-chain ligands governs the nucleation, growth pathway and final NPL morphology. For a low proportion of short-chain ligands, elongated NPLs formed during nucleation and subsequently underwent lateral expansion, yielding flat NPLs with high aspect ratios. In contrast, a high proportion of short-chain ligands resulted in the formation of dot-shaped nanocrystals during nucleation, which subsequently dissolved, accompanied by the gradual formation of NPLs with low aspect ratios and a curved morphology. We propose that these observations are associated with competitive interactions between short- and long-chain ligands at the nanocrystal surfaces. Short-chain ligands, due to weaker hydrocarbon chain interactions, promote lateral growth, whereas long-chain ligands preferentially inhibit lateral expansion. This study provides new insights into the formation mechanism of CdSe NPLs and facilitates morphology control and the practical application of related nanomaterials.</p>","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149134499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strain-tunable bipolarized Weyl semimetal and valley Hall effect in two-dimensional d-wave altermagnetic Fe₂I₂.","authors":"Jiajun Zhu, Ying Zhang, Zhiqiang Zeng, Guangsheng Liu","doi":"10.1039/d6nr02531e","DOIUrl":"https://doi.org/10.1039/d6nr02531e","url":null,"abstract":"<p><p>The discovery of altermagnetism, a novel magnetic order characterized by real-space antiferromagnetic alignment and reciprocal-space anisotropic spin polarization, has opened new avenues in spintronics and topological quantum materials. In this paper, we employ first-principles calculations to investigate the electronic structure, magnetic properties, and topological behavior of monolayer Fe₂I₂. We predict that this material hosts a stable d-wave altermagnetic ground state with an out-of-plane magnetic orientation. Our analysis reveals the presence of Weyl points with opposite Chern numbers near the Fermi level, establishing monolayer Fe₂I₂ as a bipolarized Weyl semimetal. Upon incorporating spin-orbit coupling (SOC), the crystal symmetry is reduced, leading to the opening of a finite bandgap (∼58.9 meV) at the Weyl points and inducing a quantum crystal valley Hall effect. Furthermore, we demonstrate that uniaxial strain along the <i>a</i>-axis serves as an effective knob for tuning the topological states: tensile strain induces a migration of Weyl points from the Γ-X to the X-M direction, while compressive strain significantly modulates the valley bandgap. With a predicted high Nel temperature of 630 K, monolayer Fe₂I₂ emerges as a promising candidate for ultrafast, low-power topological spintronic devices.</p>","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149147207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}