Nanoscale Research Letters最新文献

{"title":"Correction: Biosynthesis of selenium nanoparticles by Aloe vera leaf extract and its biomedical applications","authors":"Aya M. El-Ebidy, Amr M. Mowafy, Heba M. M. Abdel-Aziz","doi":"10.1186/s11671-026-04572-z","DOIUrl":"10.1186/s11671-026-04572-z","url":null,"abstract":"","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"21 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s11671-026-04572-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Copper-doped zinc oxide nanoparticles as efficient antimicrobial agents: bridging electronic properties with biological properties","authors":"Sultan Saad Almadhhi,&nbsp;Anuj Kumar,&nbsp;Mohd Ubaidullah,&nbsp;Kholnazarov Bakhodir Azamovich,&nbsp;Toshkulov A. Kh,&nbsp;Aziz Baxtiyorovich Ibragimov,&nbsp;Abdullah M. Al-Enizi","doi":"10.1186/s11671-026-04590-x","DOIUrl":"10.1186/s11671-026-04590-x","url":null,"abstract":"<div><p>Zinc oxide nanoparticles (ZnO NPs) have already shown potential applications as antimicrobial agents. However, the large band gap and charge carrier recombination of ZnO NPs reduce the production of reactive oxygen species, which limits their antibacterial activity; therefore, further modifications of their structural and electronic properties are required. Herein, Cu doping of ZnO NPs has been carried out by a microwave-assisted method to modify their structural, electronic, and biological properties. The structural and morphological analysis of the prepared Cu-doped ZnO NPs confirmed that Cu is well incorporated into the ZnO NPs lattice, and the morphology is quasi-spherical with a diameter range of 20–25 nm. The changes in the band gap and defect states in ZnO NPs, formed upon Cu doping, were confirmed by UV-visible and theoretical analysis. The antimicrobial potential of ZnO and Cu-doped ZnO NPs against <i>S. aureus</i>, <i>E. coli</i>, <i>P. aeruginosa</i>, and <i>C. albicans</i> has been evaluated by measuring the zone of inhibition, minimum inhibitory concentration (MIC), and minimum bactericidal concentration (MBC). The results showed an enhancement of the antimicrobial potential of ZnO NPs upon Cu doping, which could be related to modifications of the electronic structure that could potentially affect redox properties.</p></div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"21 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s11671-026-04590-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147830159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"MHD hybrid nanofluids and power law heat flux past a permeable surface with Joule heating impact","authors":"Nurul Amira Zainal,&nbsp;Abdul Rahman Mohd Kasim,&nbsp;Najiyah Safwa Khashi’ie,&nbsp;Iskandar Waini,&nbsp;Roslinda Nazar,&nbsp;Ioan Pop","doi":"10.1186/s11671-026-04431-x","DOIUrl":"10.1186/s11671-026-04431-x","url":null,"abstract":"<div><p>Heat transfer is frequently employed in various industrial processes such as paper production, electronic device cooling, and the synthesis of new materials. Hence, this study aims to investigate the effect of Joule heating and magnetohydrodynamics (MHD) on the flow of a hybrid nanofluid with a power law heat flux past a shrinking sheet. The transformed governing equations are solved numerically using MATLAB’s <i>bvp4c</i> solver, and the results are validated against previously published data, showing excellent agreement (error &lt; 0.01%), confirming the model’s accuracy. The analysis reveals that an increase in the magnetic parameter from 0.0 to 0.2 results in an increase of approximately 10.4% in the skin friction coefficient, while the local Nusselt number increases by about 18.8%, indicating that the magnetic field strengthens shear stress and enhances heat transfer. Meanwhile, the Joule heating parameter elevates the temperature gradient within the boundary layer, reducing the heat transfer rate, whereas the suction parameter enhances both the momentum and thermal gradients near the surface, improving surface heat transfer efficiency. Stability analysis confirms that only the first solution is physically stable. These findings demonstrate that coupling MHD and Joule heating effects in hybrid nanofluids enhances thermal regulation and provides significant potential for advanced cooling and manufacturing applications.</p></div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"21 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s11671-026-04431-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147830107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"A bibliometric analysis of the evolution of nanotechnology research in precision theranostics for nasopharyngeal carcinoma","authors":"Tong Fei Qu,&nbsp;Zuo Jie Li,&nbsp;Miao Miao Zhang,&nbsp;Ke Ke Lu","doi":"10.1186/s11671-026-04627-1","DOIUrl":"10.1186/s11671-026-04627-1","url":null,"abstract":"<div><h3>Objective</h3><p>This study aimed to analyze the global research landscape, collaborative patterns, and developmental trends of nanotechnology applications in nasopharyngeal carcinoma (NPC) using bibliometric analysis and knowledge visualization techniques.</p><h3>Methods</h3><p>Publications from 1985 to 2024 were retrieved from the Web of Science Core Collection database. A bibliometric analysis was conducted using the R-package bibliometrix (version 4.5.0) to evaluate publication metrics, while knowledge graph visualization was performed using CiteSpace software (version 6.2.6) to identify research clusters, evolutionary pathways, and emerging topics.</p><h3>Results</h3><p>We identified 321 relevant publications, demonstrating exponential growth (14.85/year, R²⁼0.913) with a significant increase after 2017. China dominated global research (72.59% of publications), while Western countries demonstrated higher citation impact. The most prolific institutions were Sun Yat-sen University (26 papers), Jinan University (21 papers), and Fujian Normal University (19 papers). The International Journal of Nanomedicine was the leading publication venue (15 papers). Three major research clusters emerged: Nanoscale diagnostic platforms employing SERS technology, targeted therapeutic systems incorporating folic acid modification, and bioinspired nanomaterials with exosomes exhibiting promising growth. The research evolved from basic nanomaterials (2002–2013) through multifunctional platforms (2014–2020) to precision medicine applications (2021–2024), with recent emphasis on overcoming treatment resistance.</p><h3>Conclusion</h3><p>Nanotechnology in NPC is rapidly evolving toward integrated theranostic platforms; however, clinical translation requires addressing scale-up manufacturing and long-term safety assessment challenges.</p></div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"21 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s11671-026-04627-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147830157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Tunable high-frequency thin-film inductor through stress-induced magnetic anisotropy","authors":"Jian Zhang,&nbsp;Tianlong Fu,&nbsp;Hongjin Ji,&nbsp;Ningning Wang,&nbsp;Hongxia Li,&nbsp;Zhe Kong,&nbsp;Xiaoyu Zhao,&nbsp;Feng Zhou,&nbsp;Xuefeng Zhang","doi":"10.1186/s11671-026-04606-6","DOIUrl":"10.1186/s11671-026-04606-6","url":null,"abstract":"<div><p>Thin-film solenoid-type inductors, owning low flux leakage and low parasitic capacitance, is required with high stability and tunability for flexible electronics. The existing solutions for flexible and tunable thin-film solenoid-type inductors is limited with the operations ease, device size and compatibility in flexible electronics. This work demonstrates a general approach to realize thin-film solenoid-type inductors on flexible substrate via stencil lithography. Ultrathin solenoid-type inductors were achieved with the total thickness less than 1 μm, and this ultrathin construction benefited the pliability and deformation uniformity during deformation regulation. The magnetic anisotropy and the permeability of permalloy magnetic core were directly impacted by bending the substrate through the magnetoelastic coupling. Based on this, the applied tensile/compressive strains gave rise to the multi-directional tunability of the thin-film inductors, showing the maximum enhancement over 140% of the inductance value at 800 MHz by bending. With the highly stability over 1,000 bending cycle tests, this method for thin-film solenoid-type inductors with easy-access turnability is expected for the future applications of flexible electronics in RF circuit and wireless communication.</p></div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"21 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s11671-026-04606-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147830158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Influence of nanofluid on performance improvement of dielectric properties and dissolved gases in oil-immersed power transformers","authors":"Abdul Suboor,&nbsp;Aejaz Masood,&nbsp;Asfar Ali Khan,&nbsp;Shabana Urooj,&nbsp;Mujib Ullah Zuberi,&nbsp;Shakeb A. Khan,&nbsp;Obaidur Rahman,&nbsp;Shaheen Parveen,&nbsp;Farhad Ilahi Bakhsh","doi":"10.1186/s11671-026-04592-9","DOIUrl":"10.1186/s11671-026-04592-9","url":null,"abstract":"<div><p>Transformer reliability is strongly governed by the condition of insulating oil; however, limited studies have directly compared real-time aged transformer oil with standardized accelerated-aged oil or evaluated nanofluid performance in aged insulation systems. This study presents a novel comparative framework that first standardizes accelerated aging by matching its dielectric behavior and fault gas signatures with real-time aged transformer oil, and subsequently evaluates the effectiveness of mineral oil-based nanofluids in mitigating aging-induced degradation. Real-time aged and accelerated-aged oils were comparatively evaluated using dielectric constant, dielectric dissipation factor, resistivity, thermal conductivity, and dissolved gas analysis. To restore degraded insulation performance, nanofluids containing cerium oxide and zirconium oxide nanoparticles were prepared and aged under identical conditions. Optimal nanoparticle concentrations of 25 mg/L for cerium oxide and 37.5 mg/L for zirconium oxide were identified. At these concentrations, cerium oxide nanofluids exhibited improvements of + 21.05% in dielectric constant, + 88.47% in resistivity, − 39.27% in dielectric dissipation factor, and + 7.75% in thermal conductivity, while zirconium oxide nanofluids showed enhancements of + 28.07%, + 143.46%, − 40.24%, and + 9.58%, respectively, compared with aged mineral oil. Dissolved gas analysis further revealed a 30–40% reduction in key fault gas concentrations, resulting in a diagnostic shift from severe thermal faults to no-major-fault conditions. These improvements correspond to a 25–40% reduction in aging acceleration factor and an estimated 20–30% extension in insulation life. The results demonstrate the strong potential of cerium oxide- and zirconium oxide-based nanofluids as effective insulating fluids for enhancing the reliability and longevity of oil-immersed power transformers.</p></div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"21 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s11671-026-04592-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Valorization of construction and demolition waste as reinforcing nanofiller for polymer composites","authors":"Ida Rasilainen,&nbsp;Ville Lahtela,&nbsp;Timo Kärki","doi":"10.1186/s11671-026-04615-5","DOIUrl":"10.1186/s11671-026-04615-5","url":null,"abstract":"<div><p>Plastics represents one of the largest global waste streams, with recycling limited by their heterogeneous composition and degraded properties. Simultaneously, construction and demolition activities generate significant amounts of fine fraction waste without reasonable utilization objectives. This study investigated the potential of combining heterogeneous plastic waste and construction and demolition waste (CDW) powder into high-value nanocomposites at various filler loadings (1, 2.5, and 5 wt%), aiming to enhance the mechanical performance of recycled plastics. Virgin polypropylene matrix and commercial nanoclay were used as reference materials. The CDW powder exhibited comparable overall performance to commercial nanoclay in elastic modulus (+ 12%) and even outperformed it in terms of tensile strength (+ 3% vs. +0.4%). Statistical analysis using two-way ANOVA (<i>n</i> = 12, α = 0.05) confirmed that both filler type and loading level significantly affected tensile strength of composites (<i>p</i> &lt; 0.0001), while elastic modulus was primarily influenced by the filler loading. Furthermore, a theoretical model predicting interfacial adhesin between polymer matrix and reinforcing fillers supported these results, indicating stronger polymer–particle adhesion with CDW particles compared to nanoclay. These findings demonstrate that nanoreinforcement is an effective strategy to valorize recycled plastics by improving their mechanical performance and establish CDW-origin filler as a competitive alternative to conventional virgin fillers in the polymer industry.</p></div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"21 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s11671-026-04615-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Bioinspired acoustic metasurface for simultaneous bilateral wave manipulation","authors":"Heye Xiao,&nbsp;Jiaqi Yu,&nbsp;Ming Yan,&nbsp;Xiang Song,&nbsp;Jingjian Xu,&nbsp;Junqiang Bai,&nbsp;Jie Zhou","doi":"10.1186/s11671-026-04558-x","DOIUrl":"10.1186/s11671-026-04558-x","url":null,"abstract":"<div><p>Acoustic metasurfaces have been widely studied due to their thin thickness in low frequency and extraordinary manipulation of sound waves in the past few years. Full-space wavefront control can enrich the functionality of metasurfaces, however, most metasurfaces are constrained by unidirectional incidence, which is not conducive to their spatial adaptability. To fulfill this gap, we proposed a bioinspired metasurface unit consisting of coiling slits and Helmholtz transmission tunnels, which can independently modulate reflected and transmitted sound waves, and the transmitted and reflected phases can be combined arbitrarily within a range of structural parameters. Moreover, benefiting from its symmetrical configuration, this metasurface can work under forward or backward incidence conditions. To illustrate the presented acoustic metasurface, the acoustic impedance model of this unit was established theoretically, and a variety of acoustic functions are realized simultaneously in reflection and transmission modes, such as generating Bessel beams, focusing sound waves, and converting surface waves. Both numerical and experimental results demonstrate the extraordinary wave-manipulation performance of the metasurfaces. This finding provides new ideas for expanding the acoustic function of metasurfaces.</p></div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"21 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s11671-026-04558-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Impact of ferroelectric polarization dynamics on thermal reliability in Ferro-FinFETs","authors":"Wenxuan Ma,&nbsp;Yue Peng,&nbsp;Qiuxia Wu,&nbsp;Shuo Zhang,&nbsp;Litao Sun,&nbsp;Wenwu Xiao,&nbsp;Chunfu Zhang,&nbsp;Xiaohua Ma,&nbsp;Yue Hao","doi":"10.1186/s11671-026-04582-x","DOIUrl":"10.1186/s11671-026-04582-x","url":null,"abstract":"<div><p>This paper systematically investigates the thermal failure mechanisms of 14 nm Ferro-FinFETs using the TCAD tools, incorporating both Preisach and thermodynamic models. A comparative analysis under programming (+ 4 V, 100 ns) and erasing (− 4 V, 100 ns) conditions reveals distinct ferroelectric domain switching behaviors and their impact on heat generation and thermal distribution. Programming induces a net downward polarization in the gate dielectric, which enhances electron accumulation at the channel surface, turns the device on, and results in a local temperature increase from 371 K to 390 K. The effects of programming voltage <i>(P</i>_V) and pulse width (<i>P</i>_W) are further examined, showing that increasing <i>P</i>_V (<i>P</i>_W) from 3 V (10 ns) to 7 V (1 µs) raises the peak temperature from approximately 379 K (375 K) to 400 K (396 K). Concurrently, thermal hotspots migrate from the drain/channel junction toward the channel center, attributed to enhanced polarization, higher current density, and redistribution of the electric field. This thermal imbalance, under fixed boundary conditions, limits heat dissipation in the channel center. These findings highlight a trade-off between polarization-induced memory window enhancement and elevated thermal risk, providing valuable insights for the thermoelectric co-design and optimization of Ferro-FinFET-based memory devices.</p></div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"21 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s11671-026-04582-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"The effect of protein corona formation on the nano-bio interaction of the Au/Nd2O3 nanocomposites","authors":"Reyhaneh Bakhshi,&nbsp;Saeed Jafarirad,&nbsp;Mahdieh Nemati,&nbsp;Farhad Bani,&nbsp;Amir Zarebkohan","doi":"10.1186/s11671-026-04544-3","DOIUrl":"10.1186/s11671-026-04544-3","url":null,"abstract":"<div><p>Au/Nd₂O₃ nanocomposites (NCs) have potential applications in nanomedicine due to their unique physicochemical properties. The interaction of biomacromolecules with NCs, known as protein corona (PC) formation, is influenced by the surface characteristics, which in turn depend on the synthesis method. In this study, Au/Nd₂O₃NCs were synthesized using both phytochemical (<i>Myrtus communis</i> extract) and chemical methods, and XRD, SEM, EDX, DLS, and FTIR were used to characterize their physicochemical properties. The NCs were analyzed with and without protein corona formation after exposure to healthy human plasma using SDS-PAGE and DLS. Results showed that protein corona formation reduced the hydrodynamic size and enhanced the stability of NCs. SDS-PAGE revealed differences in protein composition between NCs synthesized by the two methods, likely due to variations in surface chemistry and lattice parameters. Phytochemically synthesized NCs exhibited higher cellular internalization compared to chemically synthesized NCs, while MTT assays indicated minimal cytotoxicity in MDA-MB-231 and RAW264.7 cell lines, even at concentrations up to 200 µg/mL, regardless of protein corona formation. The results demonstrate that the synthesis route significantly influences protein corona formation and cellular interactions. Moreover, phytochemically synthesized Au/Nd₂O₃ NCs exhibited high stability and low toxicity, underscoring their potential for biomedical applications.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"21 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s11671-026-04544-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}