ACS Applied Nano Materials最新文献

{"title":"Effect of Inertial Cavitation by Ultrasound Active Silica Nanoparticles on 2- and 3D Cellular Systems","authors":"Shane D. Curry,&nbsp;, ,&nbsp;Talaial B. Alina,&nbsp;, ,&nbsp;Sven A. Saemundsson,&nbsp;, ,&nbsp;Mariana Cepeda Rodríguez,&nbsp;, ,&nbsp;Bryce M. Bower,&nbsp;, ,&nbsp;Jennifer N. Cha*,&nbsp;, and ,&nbsp;Andrew P. Goodwin*,&nbsp;","doi":"10.1021/acsanm.5c04443","DOIUrl":"https://doi.org/10.1021/acsanm.5c04443","url":null,"abstract":"<p >Macromolecular transport in tumors is often limited by tumor and matrix structure. These limitations can be addressed using focused ultrasound to apply mechanical force, but previous examples have used therapeutic levels that can damage tissue and risk off-target side effects. Instead, an acoustically interacting particle could reduce the levels of ultrasound required to enact tumor structure changes. Here, we used phospholipid coated hydrophobically modified mesoporous silica nanoparticles (PL-HMSNs) as cavitation nuclei to significantly reduce the intensities necessary to generate effects on cells and their surrounding matrix. First, we designed particles that retained acoustic activity in biological media over 24 h. These particles were then shown to bind to 2D cultures in as little as 15 min. Next, these particles demonstrated ablation of 2D cultures upon HIFU insonation. In 3D cultures, however, significant drops in fibronectin and cadherin content were observed while overall spheroid morphology and cell viability remained intact. This reduction in extracellular matrix allowed for greater accumulation and transport of a targeted affibody-enzyme therapeutic. Together these results suggest the possibility of using these nanoscale cavitation nuclei to reduce HIFU intensities needed to change tumor structure to enhance therapeutic transport.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 42","pages":"20621–20631"},"PeriodicalIF":5.5,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145339649","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":"Individually Encapsulating Metal–Organic Frameworks in Partially Reduced Graphene Oxide to Enhance Electrical Conductivity While Preserving Porosity","authors":"Bo-Min Kim,&nbsp;, ,&nbsp;Gun Woo Jang,&nbsp;, ,&nbsp;Changhyun Ko,&nbsp;, ,&nbsp;Kyung Min Choi,&nbsp;, ,&nbsp;Won Ho Choi*,&nbsp;, and ,&nbsp;Jeeyoung Shin*,&nbsp;","doi":"10.1021/acsanm.5c02501","DOIUrl":"https://doi.org/10.1021/acsanm.5c02501","url":null,"abstract":"<p >The rational design of porous materials with high electrical conductivity is critical for optimizing their performance in energy-storage applications. In this study, we synthesize a partially reduced graphene oxide-encapsulated metal–organic framework (MOF) by following a facile self-assembly strategy to ensure intimate contact between the graphene oxide layer and the MOF while preserving the intrinsic porosity of the latter. Surface functionalization of the MOF with 3-aminopropyltriethoxysilane facilitates the controlled deposition of graphene oxide layers, preventing pore blockage and allowing uniform encapsulation. Unlike conventional MOF-based composites that suffer from pore blockage or agglomeration, this approach preserves open ion-diffusion pathways while enabling efficient charge transport. The encapsulated graphene layers exhibit a reduced number of oxygen functional groups and increased Csp² content, enhancing electron conductivity and structural stability. Characterization results confirm that partially reduced graphene oxide encapsulation preserves the microporous framework of the MOF, considerably enhancing its electrical conductivity while preserving its porosity.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 42","pages":"20156–20163"},"PeriodicalIF":5.5,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsanm.5c02501","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145339654","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":"Visible-Light-Driven Photocatalytic CO2 Reduction to CO Using g-C3N4 Nanostructures Coupled with a Molecular Re(I) Catalyst for Solar Fuel Generation","authors":"Phuong Ngoc Nguyen*,&nbsp;, ,&nbsp;Linh-Chi Nguyen,&nbsp;, ,&nbsp;Tuan Manh Nguyen,&nbsp;, ,&nbsp;Chinh Hoang Tran,&nbsp;, ,&nbsp;Viet Bang Bui,&nbsp;, ,&nbsp;Quang-Hieu Tran,&nbsp;, ,&nbsp;S. V. Prabhakar Vattikuti*,&nbsp;, and ,&nbsp;Nam Nguyen Dang,&nbsp;","doi":"10.1021/acsanm.5c03672","DOIUrl":"https://doi.org/10.1021/acsanm.5c03672","url":null,"abstract":"<p >Visible<b>-</b>light-driven photocatalysts for carbon dioxide (CO₂) reduction offer a promising strategy for generating chemical fuels and addressing energy and environmental challenges. Herein, a heterogeneous photocatalyst Re(py)/g-C₃N₄ comprising graphitic carbon nitride (g-C₃N₄) nanostructures as a photosensitizer and [Re(CO)₃(3-(2-pyridyl)-1,2,4-triazole)Cl] (Re(py)) as a CO₂ reduction catalyst) was constructed for the efficient reduction of CO₂ to carbon monoxide (CO) under visible-light irradiation. The improved photocatalytic performance of Re(py)/g-C₃N₄ is attributed to strong interfacial interactions between Re(py) and g-C₃N₄, evidenced by increased Brunauer–Emmett–Teller surface area, suppressed electron–hole recombination, improved charge separation, and efficient interfacial charge transfer. Linkage between Re(py) and g-C₃N₄ through −OH groups on treated-g-C₃N₄ and −NH groups on the triazole ring was confirmed using XRD, FTIR, XPS, TEM, and SEM. Photocatalytic CO₂ reduction using Re(py)/g-C₃N₄ exhibited high selectivity for CO over H₂, with turnover numbers of 36.86 for CO and 1.59 for H₂ after 300 min of irradiation, corresponding to a CO selectivity of 98% (compared to 93% for Re(py). The CO formation by Re(py)/g-C₃N₄ was 24.23 times higher than that of Re(py), confirming the synergistic effect of the hybrid photocatalyst. Mechanistic studies indicate that photoexcited electrons from the conduction band of g-C₃N₄ are thermodynamically transferred to Re(py), which catalyzes the CO₂-to-CO reduction. This study demonstrates a heterogeneous photocatalytic system with potential for solar fuel production and carbon recycling through selective CO₂-to-CO reduction.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 42","pages":"20438–20449"},"PeriodicalIF":5.5,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145339601","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":"Tuning Charge Transport in Perovskite Nanoparticle Assemblies through Temporal Surface Engineering","authors":"Aditi Manna,&nbsp;, ,&nbsp;Swati Khurana,&nbsp;, ,&nbsp;Deepak Kumar Pradhan,&nbsp;, ,&nbsp;Sameer Sapra,&nbsp;, and ,&nbsp;Nirat Ray*,&nbsp;","doi":"10.1021/acsanm.5c00077","DOIUrl":"https://doi.org/10.1021/acsanm.5c00077","url":null,"abstract":"<p >Thin-film transistors (TFTs) based on lead halide perovskite nanoparticles (LHP NPs), where the NPs serve as the semiconducting channel, hold great promise for optoelectronic applications, where high carrier mobility and stability are essential. In this work, we introduce temporal surface engineering as an effective strategy to optimize the performance of CsPbBr₃ perovskite NPs. By systematically tuning the duration of the heat treatment following methyl acetate (MeOAc) treatment, we achieve a 2–3 orders of magnitude increase in steady-state current and field-effect mobility, with the resulting devices remaining relatively stable. FTIR spectroscopy confirms gradual removal of long-chain organic ligands, while KPFM measurements reveal a steady increase in work function with treatment time, indicating Fermi level shifts consistent with enhanced hole injection. Structural analysis shows that prolonged treatment induces Ostwald ripening and stabilizes the cubic phase, improving film uniformity and robustness. Prolonged PL lifetimes confirm defect passivation, and temperature-dependent transport studies attribute mobility enhancement to increased electronic coupling and extended localization lengths, consistent with 3D Mott’s variable range hopping. This work highlights temporal surface engineering as a scalable route to improve both charge transport and operational stability in perovskite-based TFTs and related optoelectronic devices.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 42","pages":"20146–20155"},"PeriodicalIF":5.5,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145339630","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":"Self-Assembled Monolayers for Advanced Energy Conversion Technologies","authors":"Gyu Don Kong*,&nbsp;, ,&nbsp;Yongjun Choi,&nbsp;, and ,&nbsp;Hyo Jae Yoon*,&nbsp;","doi":"10.1021/acsanm.5c03721","DOIUrl":"https://doi.org/10.1021/acsanm.5c03721","url":null,"abstract":"<p >This paper presents a concise review of self-assembled monolayers (SAMs) as molecular platforms for interfacial modifiers in energy conversion devices. SAMs offer precise control over interfacial energetics, charge transport, dipole orientation, and mechanical stability─key factors that influence the performance and stability of these systems. Focusing on developments from the past five years, we synthesize recent progress across four major energy conversion technologies that leverage SAMs: photovoltaic, triboelectric, thermoelectric, and piezoelectric devices. By illustrating how SAM-driven interfacial control has enabled these advances, this Review underscores the growing importance of SAMs as versatile and foundational tools in next-generation energy conversion technologies.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 42","pages":"20128–20145"},"PeriodicalIF":5.5,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145339632","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":"Tannic Acid-Derived Carbon Dots with Antibacterial Activity for Detection of 5-Nitroimidazole Antibiotics","authors":"Vishnu N. Vijayan,&nbsp;, ,&nbsp;Karthika Kannan,&nbsp;, and ,&nbsp;Sushabhan Sadhukhan*,&nbsp;","doi":"10.1021/acsanm.5c03421","DOIUrl":"https://doi.org/10.1021/acsanm.5c03421","url":null,"abstract":"<p >The detection of antibiotics has emerged as a critical area of research due to growing global concerns over antimicrobial resistance, environmental safety, and public health. In this study, we report the successful synthesis of carbon dots (TA:OPDA CDs) from tannic acid (TA) and <i>o-</i>phenylenediamine (OPDA) for the selective detection of commonly used 5-nitroimidazole (5-NI) class of antibiotics, such as metronidazole (MDN), ornidazole (ODN), secnidazole (SDN), and tinidazole (TDN). The synthesized CDs were thoroughly characterized by using ultraviolet–visible (UV–vis), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectroscopy (XPS) analysis. The TA:OPDA CDs exhibited selective fluorescence quenching in response to the 5-NI antibiotics. Notably, the TA:OPDA (1:2) CDs, as a representative example, demonstrated excellent sensitivity, with limits of detection (LoD) in the nanomolar range (4.15–5.01 nM) via a static quenching mechanism. A simple paper strip-based detection method was also developed, enabling practical application. Furthermore, CDs successfully detected 5-NI antibiotics in environmental samples and animal products, demonstrating their real-world applicability. Excellent recovery rates (95.5 - 103.3%) confirmed the reliability of the method. Additionally, TA:OPDA (1:2) CDs exhibited no cytotoxicity even at 1000 μg/mL and successfully detected 5-NI antibiotics in live 3T3-L1 mouse fibroblast cells, highlighting their potential for cellular imaging applications. Beyond antibiotics detection, the CDs also demonstrated promising antibacterial activity against both <i>Bacillus subtilis</i> and <i>Escherichia coli</i> with minimum inhibitory concentrations of 0.2 and 0.5 mg/mL, respectively. Generation of reactive oxygen species (ROS) was found to be the plausible antibacterial mechanism. Overall, TA:OPDA CDs represent a versatile and multifunctional platform with integrated applications in antibiotic sensing, antibacterial activity, and cellular imaging.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 42","pages":"20300–20313"},"PeriodicalIF":5.5,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145339643","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":"High-Confidence Aptapipette Iontronic Sensor for Analysis of Environmental Polystyrene Nanoplastics with Machine Learning-Assisted Ionic Current Rectification","authors":"Baojing Jiang,&nbsp;, ,&nbsp;Faxu Li,&nbsp;, ,&nbsp;Mengxue Sun,&nbsp;, ,&nbsp;Xiaochen Yang,&nbsp;, ,&nbsp;Zihan Hao,&nbsp;, ,&nbsp;Qun Ma,&nbsp;, ,&nbsp;Qin Wei,&nbsp;, and ,&nbsp;Zhongfeng Gao*,&nbsp;","doi":"10.1021/acsanm.5c03667","DOIUrl":"https://doi.org/10.1021/acsanm.5c03667","url":null,"abstract":"<p >The pervasive accumulation of nanoplastics in ecosystems poses significant threats due to their bioaccumulation potential and ecotoxicity. Conventional detection methods suffer from complex pretreatment and limited on-site applicability. Here, we develop a DNA aptamer-functionalized borosilicate nanopipette, defined as aptapipette, for label-free detection of polystyrene (PS) nanoplastics by leveraging synergistic electrostatic interactions and steric hindrance effects. Stepwise modifications, including silicon nanowires/amination/aptamer, enable specific binding to PS nanoplastics, amplifying ionic current rectification (ICR) through enhanced surface charge density. The iontronic sensor achieves an ultralow detection limit down to 3.3 μg/L for aged PS nanoplastics with high selectivity and robustness. Impressively, a support vector machine-assisted method is integrated to decode ICR signals, establishing a quantitative contamination assessment model. This approach achieves 96.7% confidence in distinguishing pollution levels via principal component analysis and receiver operating characteristic curve (area under the curve = 0.998), transforming raw data into actionable environmental risk insights. This work integrates aptamer-based specific recognition, nanopipette-enabled iontronic sensing, and machine learning-assisted signal decoding, providing a promising tool for environmental nanoplastics monitoring and pollution stratification.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 42","pages":"20426–20437"},"PeriodicalIF":5.5,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145339647","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":"Rod-Like BiVO4–Bi2O2CO3 Nanosheet Composites as Photocatalysts for Hydrogen Generation","authors":"Chi-Jung Chang*,&nbsp;, ,&nbsp;Chia-Tzu Li,&nbsp;, ,&nbsp;Jem-Kun Chen,&nbsp;, ,&nbsp;Wei-Hao Chang,&nbsp;, and ,&nbsp;Ying-Chih Pu,&nbsp;","doi":"10.1021/acsanm.5c03782","DOIUrl":"https://doi.org/10.1021/acsanm.5c03782","url":null,"abstract":"<p >BiVO₄/Bi₂O₂CO₃ photocatalysts were prepared by a hydrothermal method in the presence of deep eutectic solvent (DES). The relationship between synthesis conditions and the formation of distinct crystal phases was systematically investigated, providing insights into the role of DES in tuning phase, morphology, and H₂ generation performance of BiVO₄-based photocatalysts. Without DES, BiVO₄ nanomaterials with mixed crystal phases and different morphologies were obtained at different pH levels. After DES was introduced, rod-like monoclinic scheelite BiVO₄/Bi₂O₂CO₃ composite photocatalysts consisting of self-assembled nanosheets were obtained, regardless of whether the solution was acidic, neutral, or basic. DES acts as the carbon source of Bi₂O₂CO₃, the crystal phase/morphology-control agent, and the solvent. Adding DES results in the formation of BiVO₄/Bi₂O₂CO₃ heterostructures, ms-BiVO₄ phase, oxygen vacancies, and type II band structures, leading to increased carrier separation efficiency and enhanced H₂ production performance of the photocatalyst. The optimized BiVO₄/Bi₂O₂CO₃ composite photocatalyst (D2P2BVO4) exhibits an H₂ generation activity of 8783 μmol h^–1g^–1, which is 1.5 times that of the BiVO₄ photocatalyst (P7BVO).</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 42","pages":"20509–20522"},"PeriodicalIF":5.5,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsanm.5c03782","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145339606","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":"Mn-Interconnected NiCo Layered Double Hydroxide Nanosheets on Ni Foam for Electrocatalytic Concurrent Glycerol Conversion to Hydrogen and Formate","authors":"Nga Hang Thi Phan,&nbsp;, ,&nbsp;Duc Duy Bui,&nbsp;, ,&nbsp;Trung Hieu Le,&nbsp;, ,&nbsp;Van-Hieu Mai,&nbsp;, ,&nbsp;Minh Tuan Nguyen Dinh,&nbsp;, ,&nbsp;My Uyen Dao,&nbsp;, ,&nbsp;Tuyen Anh Luu,&nbsp;, ,&nbsp;Ekaterina A. Korneeva,&nbsp;, ,&nbsp;Tiep Van Nguyen,&nbsp;, ,&nbsp;Nguyen Quang Hung,&nbsp;, ,&nbsp;Sakar Mohan,&nbsp;, and ,&nbsp;Chinh Chien Nguyen*,&nbsp;","doi":"10.1021/acsanm.5c03908","DOIUrl":"https://doi.org/10.1021/acsanm.5c03908","url":null,"abstract":"<p >Utilizing KMnO₄ and glycerol as co-precursors in a previously unexplored manner, we hydrothermally synthesized Mn-interconnected NiCo layered double hydroxide (LDH) ultrathin nanosheets directly grown on nickel foam (denoted as Mn–NiCo@NF-G). KMnO₄ was used as a Mn source and a strong oxidant for generating Ni²⁺, while glycerol provided interlayer CO₃^2– ions and facilitated the formation of ultrathin LDH architectures. Comprehensive characterizations revealed that Mn was selectively incorporated into vacancy clusters of the Ni substrate and linked with Co, Mn, and O atoms via Mn---Co–O bonds, resulting in a robust interfacial coupling between the nanosheets and support. This unique structural configuration substantially enhanced charge transport and exposed a large electrochemically active surface area. The Mn–NiCo@NF-G electrode generated a current density of 10 mA·cm^–2 at a low overpotential of 1.30 V vs RHE, and its Tafel slope was small (72 mV·dec^–1). Furthermore, the electrocatalyst remained stable for 20 h of continuous operation. Remarkably, the catalyst exhibited over 90% selectivity for oxidizing glycerol to formate, demonstrating its potential for efficient and selective biomass conversion. These findings suggested a Mn–NiCo@NF-G electrode to be an effective bifunctional electrocatalyst for concurrent hydrogen production and synthesizing value-added chemicals.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 42","pages":"20553–20563"},"PeriodicalIF":5.5,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145339602","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":"Cross-Dimensional SiC Nanowire/Reduced Graphene Oxide Nanosheet Composites for Electromagnetic Wave Absorption","authors":"Baolong Guo,&nbsp;, ,&nbsp;Ziyue Wang,&nbsp;, ,&nbsp;Rui Meng,&nbsp;, ,&nbsp;Muyao Liu,&nbsp;, ,&nbsp;Zihao Zhao,&nbsp;, ,&nbsp;Xianshun Jing,&nbsp;, ,&nbsp;Anqi Lun,&nbsp;, ,&nbsp;Pianpian Zhang,&nbsp;, ,&nbsp;Dongdong Lv,&nbsp;, ,&nbsp;Xinyu Wang,&nbsp;, ,&nbsp;Yanan Yang*,&nbsp;, and ,&nbsp;Long Xia*,&nbsp;","doi":"10.1021/acsanm.5c03965","DOIUrl":"https://doi.org/10.1021/acsanm.5c03965","url":null,"abstract":"<p >The design of hierarchical architectures is critical for developing lightweight, high-performance materials for electromagnetic applications. Herein, a cross-dimensional heterostructure strategy is proposed, wherein one-dimensional silicon carbide (SiC) nanowires are directionally grown within two-dimensional reduced graphene oxide (rGO) layers via an interlayer confined growth process. This method enables precise spatial control and intimate interfacial integration, forming a 2D/1D hybrid network that couples the conductivity and flexibility of rGO with the anisotropic dielectric behavior of SiC. The resulting SiC/rGO composites (GSF series) exhibit a unique hierarchical structure with vertically aligned nanowires anchored within rGO layers, forming continuous conductive pathways and dense interfacial junctions. Comprehensive characterizations and first-principles calculations reveal that structural defects in rGO act as nucleation centers and promote interfacial polarization, while the confined growth ensures nanoscale control over orientation and dispersion. Notably, the optimized composite (GSF-0.8) achieves a minimum reflection loss of −67.46 dB at 8.56 GHz and an effective absorption bandwidth of 4.06 GHz at a thickness of just 2.8 mm. This structural paradigm not only addresses challenges in impedance matching and energy dissipation but also establishes a versatile platform for designing next-generation multifunctional nanocomposites.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 42","pages":"20607–20620"},"PeriodicalIF":5.5,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145339618","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}