ACS Applied Nano Materials最新文献

{"title":"Oxygen Plasma Interface Engineering of Ti/n-GeSn Contacts for Ultra-Low Contact Resistivity","authors":"Jingxuan Sun,&nbsp;Yi Han,&nbsp;Yannik Junk,&nbsp;Jin Hee Bae,&nbsp;Benjamin Klingebiel,&nbsp;Detlev Grützmacher,&nbsp;Dan Buca,&nbsp;Qing-Tai Zhao","doi":"10.1021/acsanm.6c03362","DOIUrl":"https://doi.org/10.1021/acsanm.6c03362","url":null,"abstract":"<p>Germanium-tin (GeSn) semiconductors are promising channel materials for low-power electronics owing to their high carrier mobility and compatibility with CMOS technology. However, strong Fermi-level pinning at metal/n-type GeSn interfaces causes large contact resistance, limiting device scalability and performance. Here we demonstrate an oxygen plasma interface engineering strategy that substantially reduces this contact resistance. Oxygen plasma treatment creates a self-limiting GeSnO interfacial layer that reacts with deposited Ti to form an ultrathin TiO_x interlayer with favorable band alignment. The engineered TiO_x interlayer is designed to reduce the effective interfacial tunneling barrier, while the slight phosphorus segregation near the contact further enhances surface doping and narrows the barrier width. Together, these synergistic effects yield an ultra-low specific contact resistivity of 2.2 × 10⁻⁷ Ω·cm². Our scalable and CMOS-compatible approach establishes a practical route to low-resistance contacts for high-performance GeSn electronics.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"9 40","pages":"18793–18801"},"PeriodicalIF":5.8,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149153214","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":"A 2D/0D Heterostructure of Monolayer MoS2/CdS QDs for a UV/Blue-Sensitive Broadband Photodetector","authors":"Chetna Gautam,&nbsp;Sandeep Dahiya,&nbsp;Nikita Kumari,&nbsp;Anupam Giri,&nbsp;Bhola Nath Pal,&nbsp;Anup Kumar Ghosh","doi":"10.1021/acsanm.6c03684","DOIUrl":"https://doi.org/10.1021/acsanm.6c03684","url":null,"abstract":"<p>A lithography-free 2D/0D heterostructure broadband photodetector has been fabricated that integrates solvothermally generated CdS quantum dots (QDs) with single flake monolayer (ML) 2D-MoS₂ developed by chemical vapor deposition (CVD). This photodetector has been utilized for the broadband spectrum responsiveness of virgin MoS₂ extended from the ultraviolet to the visible region, whereas wide-band-gap CdS QDs improve light absorption and subsequent charge carrier production and separation. Effective interfacial charge transfers from CdS QDs to the MoS₂ monolayer are confirmed by photoluminescence quenching and red shift. The photodetector shows a broadband photoresponse covering 300−800 nm with a high photoresponsivity of ∼60 mA/W (under a 5 V bias) with an external quantum efficiency of ∼25% and a detectivity of ∼10¹¹ Jones. Favorable Type-I band alignment of ML MoS₂/CdS QDs, integrated electric fields at the 2D/0D interface, and effective carrier transport across the MoS₂ monolayer are all responsible for the improved performance. Besides, the high in-plane mobility of 2D-MoS₂ enables it to be a fast photoresponse device with a response time of 0.43 s (under UV irradiation) with a highly reversible photocurrent generation.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"9 40","pages":"18984–18993"},"PeriodicalIF":5.8,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149153175","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 Nanoparticles Encapsulated in Metal−Organic Framework for Enhanced Carbon Dioxide Reduction","authors":"Ni Zeng,&nbsp;Zhihong Zhang,&nbsp;Fan Yang,&nbsp;Jisheng Song,&nbsp;Bin Shan,&nbsp;Rong Chen","doi":"10.1021/acsanm.6c04147","DOIUrl":"https://doi.org/10.1021/acsanm.6c04147","url":null,"abstract":"<p>The direct deployment of metal−organic framework (MOF) as an electrocatalyst for CO₂ reduction is often hampered by their intrinsically poor conductivity, the adsorption−desorption trade-off in intermediate binding energetics, and limited formation of multi-carbon products. To address these challenges, gold nanoparticles (Au NPs) were encapsulated within reconstructed nanowire-like structures derived from a copper-based 1,4-benzenedicarboxylate framework (CuBDC) via an in situ reduction strategy, forming an Au/CuBDC-4 composite. Despite the resulting structural disordering and partial copper loss, the optimized catalyst achieved a notable Faradaic efficiency of 60% for ethylene (C₂H₄) and 73% for C₂₊ at −0.8 V vs RHE, along with a significantly suppressed hydrogen evolution reaction (HER). Electrochemical analyses reveal increased <em>C</em>_dl and reduced charge-transfer resistance and a lower Tafel slope, indicating improved interfacial accessibility and charge-transfer kinetics. In situ Raman spectroscopy identifies potential-dependent vibrational bands associated with metal−CO-related and CO-derived surface species, suggesting the formation of reaction-induced intermediates under CO₂RR conditions. When combined with density functional theory (DFT) calculations, the cooperative roles of Au and Cu sites at the Au/CuBDC-<em>n</em> interface are further supported. Au sites may facilitate *CO formation and increase local *CO availability adjacent to Cu sites, while the same Cu sites provide favorable sites for C−C coupling with a lower calculated free-energy requirement. The resulting interfacial cooperation, together with increased catalytic-interface accessibility, facilitated interfacial charge transport and more efficient utilization of Cu sites, thereby promoting C₂H₄ formation. This work offers insights into the rational design of MOF-based synergistic catalysts with high selectivity and low overpotential for efficient CO₂ valorization.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"9 40","pages":"19090–19100"},"PeriodicalIF":5.8,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149153187","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":"Carbon Dots Supported on CuNi Layered Double Hydroxides as Electrocatalysts for Nitrate Reduction","authors":"Hongtao Sun,&nbsp;Dongxu Zhang,&nbsp;Yanhong Liu,&nbsp;Xiulian Yin,&nbsp;Qitao Chen,&nbsp;Mingze Liu,&nbsp;Long Zhang,&nbsp;Hui Huang,&nbsp;Wei Zhang,&nbsp;Zhenhui Kang,&nbsp;Baodong Mao","doi":"10.1021/acsanm.6c02786","DOIUrl":"https://doi.org/10.1021/acsanm.6c02786","url":null,"abstract":"<p>The electrochemical nitrate reduction reaction (NO₃RR) offers a green alternate for ammonia (NH₃) synthesis, which is still hindered by the low Faradaic efficiency (FE) and undesired nitrite release, especially upon fluctuating operating conditions. Here, we demonstrate a carbon dot (CD)-coupled CuNi layered double hydroxide (CuNi LDH) interfacial 2D nanoreactor for efficient nitrate reduction with high selectivity and low nitrite (NO₂⁻) release resilient to wide fluctuations owing to the specific stabilization and directional conversion of *NO₂ within the confined interfacial catalytic microenvironment. The intimate coupling between CuNi LDH/CDs enables effective interfacial potential accumulation and charge redistribution, which induces a positive shift of nitrate activation to 0 V vs. RHE and selective stabilization of *NO₂ that fundamentally avoids the immature release of NO₂⁻. In situ spectroscopy and DFT calculations reveal the facilitated *NO₃ to *NO₂ conversion and the lowered barrier for *NH₂OH to *NH₂ (the rate-determining step). The optimized CuNi LDH/CDs in the flow cell maintain NH₃ FEs above 90% and NO₂⁻ residue below 10 ppm over varying potentials, nitrate concentrations, and synthetic simulated industrial wastewater temperatures. This work provides a reliable catalytic system for practical NO₃RR that is resilient to fluctuations and a revolutionizing strategic paradigm for catalyst design in complex environmental catalysis.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"9 40","pages":"18488–18501"},"PeriodicalIF":5.8,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149153239","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":"Electrochemically Engineered Octahedral High-Entropy Alloy Nanocrystals for Enhanced Electrocatalysis","authors":"Wan-Wan Wu,&nbsp;Heng Bian,&nbsp;Pan-Yan Chen,&nbsp;Zhixin Wang,&nbsp;Luokai Wang,&nbsp;Honghui Wang,&nbsp;Xinsheng Zhao,&nbsp;Lu Wei","doi":"10.1021/acsanm.6c02342","DOIUrl":"https://doi.org/10.1021/acsanm.6c02342","url":null,"abstract":"<p>High-entropy alloys (HEAs) have attracted increasing attention and shown considerable promise for diverse applications. However, the shape-controlled construction of HEAs with well-defined facets remains a significant challenge due to the large chemical and structural complexity. Herein, an electrochemical square-wave potential method was developed for shape-controlled construction of octahedral PdAuAgZnCu high-entropy alloy nanocrystals (HEA-NCs) in a choline chloride-urea (ChCl-U) based deep eutectic solvent (DES). The mechanism reveals that the formation of the octahedral HEA-NCs is critically dependent on the periodic synergy between a lower potential (<em>E</em>_L) for reductive deposition and an upper potential (<em>E</em>_U) for oxidative dissolution. Thanks to the high-entropy composition and multi-element synergistic effect, the as-synthesized octahedral PdAuAgZnCu HEA-NCs exhibits exceptional electrocatalytic performance for hydrazine oxidation reaction (HzOR). Compared to monometallic Pd, PdAuAg ternary alloy, PdAuAgZn and PdAuAgCu quaternary alloys, the PdAuAgZnCu HEA-NCs demonstrates superior HzOR activity in an alkaline electrolyte, achieving a high current density of 157 mA cm⁻² at 1.2 V vs. RHE, with a low onset potential of 0.4 V vs. RHE at 20 mA cm⁻² and a Tafel slope of 141 mV dec⁻¹. Density functional theory (DFT) calculations reveals that the Pd−Cu bridge sites on the PdAuAgZnCu(111) HEA surface possess a low activation barrier of the initial dehydrogenation of hydrazine and exhibit high activity for HzOR with Sequential Mechanism.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"9 40","pages":"18418–18429"},"PeriodicalIF":5.8,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149153280","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":"Synthesis of Poly(heptazine imide) Ultrathin Nanosheets via Dialysis-Delamination of Potassium Poly(heptazine imide) for Photocatalysis","authors":"Yu Wang,&nbsp;Quanhua Deng,&nbsp;Kai Gao,&nbsp;Haiping Li,&nbsp;Wanguo Hou","doi":"10.1021/acsanm.6c03714","DOIUrl":"https://doi.org/10.1021/acsanm.6c03714","url":null,"abstract":"<p>Semiconductor ultrathin nanosheets are considered excellent photocatalysts due to their abundant surface-active sites and high photogenerated charge separation efficiencies. However, the formation of the ultrathin nanosheets is typically accompanied by a reduction in crystallinity, which can compromise their photocatalytic performance. Herein, ∼0.5 nm thick poly(heptazine imide) (PHI) ultrathin nanosheets were easily synthesized via dialysis-delamination of potassium poly(heptazine imide) (PHI-K). Remarkably, these nanosheets exhibit considerably enhanced crystallinity. Due to improved photogenerated charge separation and increased surface area, the ultrathin nanosheets display pronounced superiority in photocatalytic hydrogen evolution over both PHI-K and acid-treated PHI-K (PHI-H). Co-modified with Pt@CrO_<em>x</em> and CoOH groups, the ultrathin nanosheets exhibit 300 and 27 times higher photocatalytic overall water splitting activity than PHI-K and PHI-H, respectively. Overall, this work presents a method to prepare organic semiconductor ultrathin nanosheets with enhanced crystallinity.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"9 40","pages":"19002–19013"},"PeriodicalIF":5.8,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149153056","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-Nanostructure Decorated MoS2 Field-Effect Transistors for Enhanced Sensing and Discrimination of Volatile Organic Compounds","authors":"Yan Wang,&nbsp;Yueying Li,&nbsp;Liang Zhu,&nbsp;Fei An,&nbsp;Haozhi Wang,&nbsp;Chao Fan,&nbsp;Rui Jing,&nbsp;Chao Dou,&nbsp;Haoyue Lu,&nbsp;Manli Lu,&nbsp;Jing Liu","doi":"10.1021/acsanm.6c03161","DOIUrl":"https://doi.org/10.1021/acsanm.6c03161","url":null,"abstract":"<p>The development of portable, low-power electronic noses for volatile organic compound (VOC) identification is crucial for applications ranging from environmental monitoring to medical diagnostics. Although two-dimensional materials such as molybdenum disulfide (MoS₂) are attractive sensing platforms due to their high surface-to-volume ratio and room-temperature operation, pristine devices often exhibit limited sensitivity and poor selectivity. Here, we present a CMOS-compatible, post-fabrication functionalization approach that enhances VOC sensing in MoS₂ field-effect transistors (FETs) and introduces Au decoration thickness as an additional tuning parameter for array construction. Specifically, ultrathin gold (Au) layers with precisely controlled nominal thicknesses (1−3 nm) are deposited onto the transistor channel by standard electron beam evaporation. By tuning the nominal Au thickness from 1 to 3 nm, distinct surface morphologies, including nanoparticles, nanoclusters, and interconnected nanoscale networks, are formed on the MoS₂ channel. By leveraging thickness-programmed Au functionalization, we build a multi-element sensor array from a single material platform, in which each element shows a distinct electrical response to different VOCs, producing analyte-specific response patterns. The array outputs are further analyzed using machine-learning algorithms, achieving a classification accuracy of 93.75% across six VOCs. This work provides a scalable, fabrication-friendly route to high-performance and discriminative sensor arrays, bridging the gap between emerging 2D materials and practical electronic-nose systems.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"9 40","pages":"18654–18663"},"PeriodicalIF":5.8,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149153092","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":"Zinc Assembled Gold Nanoclusters with Drug Conjugation for Theranostics and Intracellular Ratiometric Reporting","authors":"Arkopal Sen,&nbsp;Sawna Roy,&nbsp;Santanu dolai,&nbsp;Martina Perić Bakulić,&nbsp;Srestha Basu","doi":"10.1021/acsanm.6c03785","DOIUrl":"https://doi.org/10.1021/acsanm.6c03785","url":null,"abstract":"<p>Nanotheranostic platforms incorporating multimodal functionalities have been explored for integrated diagnostic and drug delivery applications; however, in many systems, drugs are associated through supramolecular interactions, often leading to premature release and limited control over site-specific activation. In this work, a zinc-mediated assembly of Zn−Au nanoclusters (Zn−Au NCs) was developed, in which doxorubicin (DOX) was conjugated through zinc−amine coordination, as supported by FTIR spectroscopy and computational analysis. Density functional theory calculations revealed a short N···Zn coordination contact (2.10 Å), indicating strong metal−ligand anchoring of DOX, together with a stabilizing hydrogen-bond interaction, while a longer H···Au separation (3.88 Å) suggested a weak secondary interaction with the gold framework. Spectral overlap between DOX absorption and Zn−Au NC emission indicated energy transfer, corroborated by time-resolved photoluminescence and DFT studies. Geometry optimizations showed that zinc-mediated coordination enforced short donor−acceptor separations and induced interfacial charge redistribution, enhancing electronic coupling. Electrostatic potential and frontier orbital analyses revealed charge polarization and LUMO localization on DOX, consistent with interfacial charge-transfer character. Biologically, the combined formulation exhibited enhanced cytotoxic activity with a reduced IC₅₀ value (0.17 μM). pH-responsive DOX release was achieved in serum and cellular environments, with monitoring enabled by dual-ratiometric fluorescence.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"9 40","pages":"19014–19028"},"PeriodicalIF":5.8,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149153201","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":"Label-Free SERS Sensing of PFOA at Few-Molecule Levels Using Plasmonic-Active Diatom Photonic Crystal Nanomembranes","authors":"Meizhen Zhang,&nbsp;Kang Rong,&nbsp;Alan X. Wang","doi":"10.1021/acsanm.6c02851","DOIUrl":"https://doi.org/10.1021/acsanm.6c02851","url":null,"abstract":"<p>Perfluorooctanoic acid (PFOA) is a persistent environmental contaminant that poses significant risks to human health, yet its direct, label-free detection at trace levels remains challenging because of its weak Raman fingerprint signals. Reliable detection usually depends on indirect labeling, labor-intensive preconcentration, or specialized signal-amplification strategies. Here, we demonstrate a direct, label-free surface-enhanced Raman scattering (SERS) sensing for trace PFOA detection using plasmonic-active photonic-crystal biosilica nanomembrane based on <em>Coscinodiscus wailesii</em> diatom frustules. Such naturally occurring photonic-crystal scaffolds are periodic porous architectures that support photonic−plasmonic enhancement when integrated with in situ grown silver nanoparticles. Precision inkjet deposition was employed to deliver nanoliter-volume PFOA solutions onto individual frustules, enabling effective analyte enrichment within SERS-active regions. In deionized water, the platform enabled a near-threshold detectable response at 0.01 ppt, corresponding to approximately 1746 PFOA molecules delivered to a single frustule and around 1.18 molecules within each laser spot, indicating few-molecule-level detection under a low-background interference. In river water, a practical detection limit of 10 ppt was achieved, where sensitivity was primarily limited by matrix-induced background and reduced signal-to-noise ratio rather than molecular availability. Spatially resolved SERS mapping, combined with principal component analysis and intensity-distribution analysis, improved the discrimination of weak PFOA-related signals from background variation in both clean and filtered river water samples. These results demonstrate a proof-of-concept PFOA sensing technique using direct, label-free SERS in low-background environmental aqueous samples.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"9 40","pages":"18530–18540"},"PeriodicalIF":5.8,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149153223","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":"Synthesis Strategies, Catalytic Mechanisms and Multifunctional Applications of Heterojunction Nanozymes: A Review","authors":"Ziyi Yuan,&nbsp;Yuanke Zhang,&nbsp;Yongxiang Wei,&nbsp;Guixia Ling,&nbsp;Peng Zhang","doi":"10.1021/acsanm.6c03465","DOIUrl":"https://doi.org/10.1021/acsanm.6c03465","url":null,"abstract":"<p>Heterojunction nanozymes offer unique advantages, including interface charge regulation, multivalent-state cycling, defect engineering, and enhanced field responses. These merits overcome the bottlenecks of single-component nanozymes, such as low catalytic activity, poor stability, and limited functionality. They have shown great potential for applications in biomedical, environmental governance, and food detection fields. This article provides a systematic review of the latest research progress on heterojunction nanozymes. First, heterojunction nanozymes are classified by their diverse enzyme−mimetic activities (e.g., oxidase (OXD), catalase (CAT), peroxidase (POD)), followed by a systematic overview of their material components, key active centers, and representative synthetic strategies. We next discuss the charge-separation and directional-transfer mechanisms of type I, II, S, Z, and Schottky heterojunctions, and reveal how multivalent-state cycling, interface defects, external-field responses, and microenvironment activation regulate catalytic performance. Finally, we summarize their applications in biosensing, disease treatment, antibacterial therapy, pollutant degradation and detection, and food-contaminant analysis. We also discuss the remaining challenges and future directions, including interface precision design, mechanism elucidation, biosafety, and large-scale production. This article aims to provide comprehensive reference for the rational design and application expansion of high-performance multifunctional heterojunction nanozymes.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"9 40","pages":"18284–18311"},"PeriodicalIF":5.8,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152931","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}