ACS Applied Nano Materials最新文献

{"title":"Pre-Envelope-Coating Strategy for Preparing the Boron Nitride Aramid Nanofiber Thermal-Insulating Composite Paper","authors":"Yuxin Qin,&nbsp;Wei Ren,&nbsp;Huaxing Mao,&nbsp;Xiaoyun Du,&nbsp;Gengmei Liu,&nbsp;Dingwen Yin,&nbsp;Xia Wang and Jinbao Li*,&nbsp;","doi":"10.1021/acsanm.5c02877","DOIUrl":"https://doi.org/10.1021/acsanm.5c02877","url":null,"abstract":"<p >To address the challenge that low thermal conductivity and weak interface bonding strength severely limit the improvement of thermal management efficiency, a synergistic “pre-envelope-coating” strategy is proposed through cross-scale structural design, which breaks through the limitations of the traditional trade-off between thermal conductivity and mechanical properties of materials. Hexagonal boron nitride (BN) was combined with aramid nanofibers (ANFs) via in situ polymerization to form a nano BN@ANFs pre-envelope structure. This structure was introduced into an aramid base paper through filling, significantly enhancing its mechanical strength and establishing an out-of-plane heat conduction path. Simultaneously, the paper surface was coated with a BNNS aramid resin solution, and an in-plane thermal conduction path was constructed by using water-assisted self-assembly. The BNNS/BN@ANFs aramid paper with a dual thermal network structure was successfully prepared by combining the above two methods. The composite paper exhibits outstanding performance, achieving an in-plane thermal conductivity of 2.77 W/mK and an out-of-plane thermal conductivity of 0.24 W/mK, representing increases of 265 and 500%, respectively, compared to the aramid base paper. Additionally, the composite paper also possesses a relatively high strength (16.88 MPa), which is 432% higher than that of the aramid-based paper, and it also has an excellent breakdown strength (36.72 kV/mm). Moreover, this composite paper also exhibits outstanding thermal stability, flame retardancy, and insulation properties, highlighting its potential applications in the fields of heat conduction and insulation.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 36","pages":"17451–17462"},"PeriodicalIF":5.5,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036592","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":"Au@Ag, Au@Pd, Au@Pt and Au@Ir Nanoparticles as Colorimetric and Peroxidase-Like Labels for Lateral Flow Assays","authors":"Vasily G. Panferov,&nbsp;Sihan Wang,&nbsp;Wenjun Zhang and Juewen Liu*,&nbsp;","doi":"10.1021/acsanm.5c03789","DOIUrl":"https://doi.org/10.1021/acsanm.5c03789","url":null,"abstract":"<p >Lateral flow assays (LFAs) are an indispensable point-of-care (POC) diagnostic tool. While it is fast, accessible, and user-friendly, LFAs often suffer from limited sensitivity (high limit of detection – LOD). One widely adopted strategy to overcome this limitation involves replacing conventional gold nanoparticle (Au NP) labels with alternative nanomaterials. Utilizing more efficient colorimetric labels preserves all the advantages of LFA as a POC method while improving LOD. Alternative nanomaterial-based labels may exhibit catalytic activities, allowing for signal amplification and further improvement in sensitivity. In this study, we investigated the optical and catalytic properties of core@shell NPs to evaluate their performance as labels for LFAs. A total of 67 core@shell NPs, comprising Au cores and Ag, Pd, Pt, or Ir shells with varying thicknesses (0.5–50 nm) were synthesized. For the first time, we comprehensively examined the relationship between composition, morphology, optical behavior, and catalytic performance across these core@shell NPs. We used two parameters for evaluating nanoparticles as LFA labels: integrated extinction in the visible range (380–750 nm) and specific peroxidase-like activity. Based on these parameters, we concluded that their LOD values on nitrocellulose membranes do not improve significantly through optical enhancement alone. A substantial improvement in sensitivity of two to 3 orders of magnitude is associated with NPs exhibiting high peroxidase-like activity. This work has demonstrated the universal applicability of the proposed parameters as reliable descriptors for nanoparticle performance in LFAs.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 36","pages":"17754–17767"},"PeriodicalIF":5.5,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036351","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":"Magnetic and Leakage Current Characteristics of Transferred CoFe2O4/BiFeO3 Thin Films","authors":"Sanghun Kim,&nbsp;Yeomin Yoon,&nbsp;Chanhyuk Park,&nbsp;Jun Woo Choi,&nbsp;Jeong Woo Jang,&nbsp;Hoyeon Kim,&nbsp;Hyung-Won Kang and Dong Hun Kim*,&nbsp;","doi":"10.1021/acsanm.5c02961","DOIUrl":"https://doi.org/10.1021/acsanm.5c02961","url":null,"abstract":"<p >The challenge of directly depositing highly crystalline thin films onto flexible substrates because of their low thermal stability has motivated the exploration of thin-film transfer techniques. In this study, we report on the thin-film transfer process of sputter-grown BiFeO₃/CoFe₂O₄ bilayer thin films using a sacrificial α-MoO₃ layer on SrTiO₃(001) substrates. A significant cation diffusion into the α-MoO₃ layer leading to the formation of secondary phases in CoFe₂O₄ films was effectively suppressed by lowering the deposition temperature. However, the formation of secondary phases could not be avoided in crystallized BiFeO₃ thin films. The large leakage current in the BiFeO₃ thin film dramatically decreased upon annealing; however, a critical temperature existed where α-MoO₃ reacted with SrTiO₃, thereby resulting in the collapse of its two-dimensional structure. The CoFe₂O₄ thin films not only prevented diffusion but also significantly reduced the leakage current in the BiFeO₃/CoFe₂O₄ bilayer. Bilayer stacks transferred onto flexible substrates by rupturing the interconnection in the α-MoO₃ layer maintained their magnetic anisotropy and exhibited improved leakage current characteristics.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 36","pages":"17483–17492"},"PeriodicalIF":5.5,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036413","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":"Review of Nanomaterial-Enabled Flexible Energy Storage","authors":"Yiming Zhao,&nbsp; and ,&nbsp;Kourosh Kalantar-Zadeh*,&nbsp;","doi":"10.1021/acsanm.5c03520","DOIUrl":"https://doi.org/10.1021/acsanm.5c03520","url":null,"abstract":"<p >Flexible electronics are increasingly integrated into many aspects of daily life, including biochemical monitoring, personalized healthcare, wearable systems, and the Internet of Things (IoT). As a key constituent, energy storage systems─primarily batteries and supercapacitors─now face higher demands in flexible systems. Traditional energy storage systems are often bulky, rigid, and contain hazardous components. In this regard, next-generation flexible energy storage systems need to move toward more elasticity, biocompatibility, safety, and stability in delivering energy and power outputs under continuous deformation. Nanomaterials play a critical role in such developments by offering a large surface area, a network of conduction paths, and mechanical adaptability, providing effective solutions for the advancement of better flexible energy storage systems. This review explores the role of nanomaterials in flexible energy storage systems, focusing on electrode materials, electrolytes, and device integration. We also discuss the applications of flexible energy storage supplies, specifically in biomedical fields. Finally, we summarize the current challenges and provide future perspectives for advancing flexible, safe, and efficient solutions for the field.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 36","pages":"17378–17396"},"PeriodicalIF":5.5,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction to “IR780-Loaded E. coli Membrane Nanovesicles Combined with Photodynamic Therapy to Enhance Immunogenicity in Osteosarcoma”","authors":"Han Wang,&nbsp;Long Wang,&nbsp;Zhengdan Tan,&nbsp;Shiying Wu,&nbsp;Diankun She,&nbsp;Yuqing Gong,&nbsp;Hao Zhu,&nbsp;Yuchen Wang,&nbsp;Ke Ren*,&nbsp;Xuehui Rui* and Guangxin Zhou*,&nbsp;","doi":"10.1021/acsanm.5c03644","DOIUrl":"https://doi.org/10.1021/acsanm.5c03644","url":null,"abstract":"","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 36","pages":"17776"},"PeriodicalIF":5.5,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036562","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":"Development of a Graphene Oxide-Enhanced Thermoresponsive Self-Healing Waterborne Polyurethane Elastomer for Abdominal Wall Defect Repair","authors":"He Gan,&nbsp;Lin Wang,&nbsp;Ran Sun,&nbsp;Junchen Li,&nbsp;Zhirong Zhao,&nbsp;Yuan Chen,&nbsp;Weiliang Tian,&nbsp;Fan Yang and Qian Huang*,&nbsp;","doi":"10.1021/acsanm.5c03159","DOIUrl":"https://doi.org/10.1021/acsanm.5c03159","url":null,"abstract":"<p >Polyurethane has been widely utilized in medical devices, owing to its excellent biocompatibility, mechanical properties, and processability. This study presents a thermoresponsive self-healing waterborne polyurethane elastomer (WPU) incorporating graphene oxide (GO), designed to enhance the repair of abdominal wall defects. This material integrates multiple functionalities including antimicrobial activity, tissue regeneration, and self-healing capabilities, offering a safer and more effective solution. The WPU matrix provides excellent biocompatibility and controllable degradability, contributing to reduced tissue adhesion and promoted abdominal wall regeneration. The incorporation of GO endows the material with photothermal properties, enabling localized thermal effects under near-infrared irradiation to achieve synergistic antimicrobial effects. Furthermore, the dynamic chemical bonds in the cross-linked network confer thermoresponsive self-healing ability. In infected skin and abdominal wall defect rat models, the WPU-GO elastomer exhibited potent antimicrobial activity, promoted wound closure, reduced inflammation, and demonstrated excellent antiadhesion and tissue regeneration capabilities. This multifunctional material shows remarkable potential in abdominal wall defect treatment.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 36","pages":"17576–17590"},"PeriodicalIF":5.5,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036662","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":"Deep-Eutectic-Solvent-Based Electrochemical Engineering: Efficient Synthesis of Selenium Nanorods from Cu2Se","authors":"Jihua Li,&nbsp;Qihang Zhang,&nbsp;Jie Yu,&nbsp;Zhongsheng Hua,&nbsp;Huan Liu*,&nbsp;Hui Kong and Shiwei He*,&nbsp;","doi":"10.1021/acsanm.5c03290","DOIUrl":"https://doi.org/10.1021/acsanm.5c03290","url":null,"abstract":"<p >Selenium is a strategically important element that occurs at low concentrations in the Earth’s crust. Cuprous selenide (Cu₂Se), enriched in selenium and commonly found in copper anode slime, also shows promise as a thermoelectric material, making it an attractive target for recovery. A room-temperature solid-state electrolysis route is reported for producing well-defined selenium nanorods from Cu₂Se in a choline chloride–urea deep-eutectic solvent with concurrent copper recovery. The redox behavior of Cu₂Se was elucidated via electrochemical analysis, and constant-potential electrolysis enabled controlled species separation, while constant-voltage electrolysis demonstrated the method’s scalability. Structural characterizations confirmed the formation of highly crystalline Se nanorods and high-purity Cu. This electrochemical approach enables phase-selective separation and nanostructure fabrication under ambient conditions without thermal input or additional reagents. The process offers a sustainable and scalable strategy for recovering critical elements from selenium-rich residues and producing functional selenium nanomaterials applicable in energy and electronics.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 35","pages":"17268–17275"},"PeriodicalIF":5.5,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144987867","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":"Bimetallic and Magnetic CoFe-/Nitrogen-Doped Carbon Nanocomposites as Catalysts for the Degradation of Rhodamine B","authors":"Dhayanantha Prabu Jaihindh,&nbsp;Si-Bei Lu,&nbsp;Tzu-Ting Chang,&nbsp;Yi-Feng Lin*,&nbsp;Kartikeya Shukla,&nbsp;Tso-Fu Mark Chang,&nbsp;Masato Sone and Chun-Yi Chen,&nbsp;","doi":"10.1021/acsanm.5c02849","DOIUrl":"https://doi.org/10.1021/acsanm.5c02849","url":null,"abstract":"<p >Developing M/N-doped carbon (M = Fe, Co) with porous frameworks is an efficient approach for creating high-performance catalysts for the advanced oxidation process (AOP). In this work, a nitrogen-doped porous carbon-supported Co-Fe-NC catalyst was developed using a metal–organic framework, followed by a one-step pyrolysis of bimetallic ZIF-9 (Co-Fe) at 700 °C. It was carefully studied to see how well the synthesized Co-Fe-NC worked as a catalyst for activating PMS to degrade Rhodamine B (RhB). The Co-Fe-NC (4:2) catalysts with a Co/Fe molar ratio of 4/2 had the greatest catalytic efficacy in the degradation of RhB. The highest RhB degradation efficiency of 100% and a pseudo-second-order kinetic constant of 1.414 min^–1 were attained after 6 min at 25 °C. Furthermore, Co-Fe-NC (4:2) showed excellent recyclability and stability, with a specific surface area of 129.1 m²/g. Results indicated that SO₄^·^–, ¹O₂, and ^·OH were produced during PMS activation, with ¹O₂ being the primary radical responsible for RhB degradation. In addition, Co(II), Fe(III), and coordinated nitrogen, especially pyridinic and graphitic nitrogen groups, played a vital role in activating PMS. Spectral analysis also provided insights into potential pathways of RhB degradation. All of these results showed that Co-Fe-NC (4:2) has a lot of potential as a PMS activator for use in pollutant degradation.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 35","pages":"17154–17164"},"PeriodicalIF":5.5,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsanm.5c02849","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144987868","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":"Tight-Anchoring of Gold Nanoparticles to Polymer-Wrapped Semiconducting Single-Walled Carbon Nanotubes for Biosensor Applications","authors":"Brendan Mirka*,&nbsp;Jianfu Ding and François Lapointe*,&nbsp;","doi":"10.1021/acsanm.5c02527","DOIUrl":"https://doi.org/10.1021/acsanm.5c02527","url":null,"abstract":"<p >Conjugated polymer-sorted semiconducting single-walled carbon nanotubes (sc-SWCNTs) are excellent materials for electronic biosensors due to their high electrical conductivity and sensitivity and can be integrated into electrolyte-gated field-effect transistor (EGFET) sensors. Operation of electronic biosensors in bodily fluids is challenging because of the short Debye length (λ_<i>D</i>) in high ionic strength media. The receptor attached to the sc-SWCNT is a crucial component of the biosensor, and sensor performance depends on efficient signal transduction between the receptor and the sc-SWCNT. In this work, we grew Au nanoparticles (NPs) on sc-SWCNTs wrapped with a copolymer of fluorene and 2,2’-bipyridine (BPy), poly(9,9-di-<i>n</i>-dodecylfluorenyl-2,7-diyl-<i>alt</i>-2,2′-bipyridine-5,5′) (PFBPy-5,5′). AuNPs were anchored to the BPy ligands in the polymer backbone, realizing an efficient electrical connection between the AuNPs and the sc-SWCNTs. Cortisol sensors were prepared by coupling a thiol-terminated cortisol aptamer to the AuNPs and integrating the Aptamer/AuNP/sc-SWCNT@PFBPy-5,5′ complex into an EGFET. The sensor exhibited a concentration-dependent increase in source-drain current upon increasing cortisol concentration from 1 to 1000 nM. A control sensor was prepared using sc-SWCNTs wrapped with a fluorene homopolymer, poly(9,9-dodecylfluorene) (PFDD), which does not have a ligand that AuNPs can anchor. The control Aptamer/AuNP/sc-SWCNT@PFDD sensor showed only a weak concentration-dependent response. A further control was prepared using sc-SWCNTs@PFDD with the aptamer covalently attached to the nanotube’s sidewall. The Covalent-Aptamer/sc-SWCNT@PFDD control sensor exhibited a concentration-dependent response, albeit to a lesser extent than the Aptamer/AuNP/sc-SWCNT@PFBPy-5,5′ system. The results indicate that tight-anchoring of AuNPs in the Aptamer/AuNP/sc-SWCNT@PFBPy-5,5′ system provides a crucial contribution to the proposed sensing mechanism: (1) upon cortisol recognition, the aptamer undergoes a structure-switch where the negatively charged backbone is brought within or near the Debye length at the AuNP surface, altering the interfacial capacitance and electrostatically gating the AuNP and (2) efficient signal transfer between the AuNPs and sc-SWCNTs@PFBPy-5,5′.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 36","pages":"17397–17408"},"PeriodicalIF":5.5,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsanm.5c02527","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036661","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":"SERS Detection of Thiram in Biofluids Based on Ag Nanopocket/Cu Nanostructures","authors":"Qiong Ning,&nbsp;Hua Shao,&nbsp;Mengping Zhang,&nbsp;Haiyan Wei,&nbsp;Xiao Meng,&nbsp;Wenwen Chen,&nbsp;Ming Shang* and Cuijuan Wang*,&nbsp;","doi":"10.1021/acsanm.5c03188","DOIUrl":"https://doi.org/10.1021/acsanm.5c03188","url":null,"abstract":"<p >The extensive use of thiram has raised concerns regarding its adverse effects on human health. However, the current methods for detecting thiram in biofluids are complex, creating a critical need for a rapid approach. This study developed a surface-enhanced Raman spectroscopy (SERS) approach through synthesizing an ordered arrangement of silver nanopocket agglomerates on a copper foil surface via in situ reduction using chloride ions as a shape mediator. This Ag Nanopocket/Cu substrate exhibits a uniform distribution of gaps and cavities, creating high-density “hot spots” for the enhanced SERS effect. The Ag Nanopocket/Cu was used for sensing thiram in human urine and serum, achieving ultralow detection limits of 1.37 and 1.69 ppb, respectively. Linear correlations were established between the SERS intensity and logarithmic concentrations from 2 ppb to 2 ppm. This substrate displayed remarkable reproducibility in SERS signal collection from 225 randomly selected points, with a relative standard deviation of 8.18% and an enhancement factor of 3.6 × 10⁶. Notably, this all-in-one approach eliminates complex pretreatment and completes “extraction and detection” within 10 min with satisfactory recoveries. The results show excellent agreement with those from high-performance liquid chromatography and offer great potential for cost-effective and rapid detection in thiram exposure applications.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 35","pages":"17259–17267"},"PeriodicalIF":5.5,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144987856","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}