ACS Applied Nano Materials最新文献

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CsPbBr3 Nanocrystals Prepared Using Block Copolymer Micelles for LEDs
IF 5.3 2区 材料科学
ACS Applied Nano Materials Pub Date : 2024-11-22 DOI: 10.1021/acsanm.4c0612210.1021/acsanm.4c06122
Belda Amelia Junisu, Ya-Sen Sun*, Cindy Mutiara Septani and Orion Shih, 
{"title":"CsPbBr3 Nanocrystals Prepared Using Block Copolymer Micelles for LEDs","authors":"Belda Amelia Junisu,&nbsp;Ya-Sen Sun*,&nbsp;Cindy Mutiara Septani and Orion Shih,&nbsp;","doi":"10.1021/acsanm.4c0612210.1021/acsanm.4c06122","DOIUrl":"https://doi.org/10.1021/acsanm.4c06122https://doi.org/10.1021/acsanm.4c06122","url":null,"abstract":"<p >We systematically investigated how block copolymer (BCP) templating influences CsPbBr<sub>3</sub> nanocrystals inside polystyrene-<i>block</i>-poly(2-vinylpyridine) (PS<sub>m</sub>-<i>b</i>-P2VP<sub>n</sub>) micelles in benzene (BEN), toluene (TOL), oxylene (OXY), and 1,3,5-trimethylbenzene (TMB) for light-emitting diode (LED) applications. Each organic solvent features a benzene ring attached to different numbers of methyl groups, thus providing varying solvent qualities for the formation of CsPbBr<sub>3</sub> nanocrystals. We found that solvent quality plays a crucial role in fabricating CsPbBr<sub>3</sub> nanocrystals with a superior photoluminescence (PL) performance and long-term stability. The micellization strength of PS<sub>m</sub>-<i>b</i>-P2VP<sub>n</sub> is strongest in TMB but weakest in BEN, suggesting that increasing the number of methyl groups attached to benzene enhances micellization. Furthermore, increasing the number of methyl groups attached to benzene also yields three positive effects: increased dissociation, complexation, and coordination interaction of PbBr<sub>2</sub> with P2VP cores. Consequently, each PS<sub>m</sub>-<i>b</i>-P2VP<sub>n</sub> micelle can capture a higher content of [PbBr<sub>3</sub>]<sup>−</sup> complexes in TMB. Complexation of PbBr<sub>2</sub> followed by coordination interaction with P2VP is also critical because the growth of CsPbBr<sub>3</sub> nanocrystals inside individual micelles involves binding of Cs<sup>+</sup> cations with [PbBr<sub>3</sub>]<sup>−</sup> complexes rather than with PbBr<sub>2</sub> nanocrystals. However, [PbBr<sub>3</sub>]<sup>−</sup> complexes are not crystalline but amorphous and are not uniformly distributed within the P2VP cores. When a small amount of CsBr was added, a portion of [PbBr<sub>3</sub>]<sup>−</sup> complexes transformed to form CsPbBr<sub>3</sub> perovskite nanocrystals (PNCs) with small size and polydisperse size distribution, coexisting with abundant active [PbBr<sub>3</sub>]<sup>−</sup> and [PbBr<sub>4</sub>]<sup>2–</sup> complexes. Furthermore, variations in the molecular weights and compositions of PS<sub>m</sub>-<i>b</i>-P2VP<sub>n</sub> have minimal influence on the size of the CsPbBr<sub>3</sub> nanoparticles. Instead, the CsBr content plays a more decisive role in controlling nanoparticle size, primarily due to the limited solubility of CsBr, an all-inorganic precursor, in methanol.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"7 23","pages":"27745–27760 27745–27760"},"PeriodicalIF":5.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsanm.4c06122","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142842885","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}
引用次数: 0
Nitric Oxide-Loaded Nanobubbles for the Treatment of Acute Pulmonary Embolism and Mitigation of Lung Ischemia–Reperfusion Injury
IF 5.3 2区 材料科学
ACS Applied Nano Materials Pub Date : 2024-11-22 DOI: 10.1021/acsanm.4c0513410.1021/acsanm.4c05134
Cheng Huang, Juan Jin, Wenxiu Xu, Linfeng Dai, Mingqi Chen, Weiyi Zhou, Xing Wang* and Ning Gu*, 
{"title":"Nitric Oxide-Loaded Nanobubbles for the Treatment of Acute Pulmonary Embolism and Mitigation of Lung Ischemia–Reperfusion Injury","authors":"Cheng Huang,&nbsp;Juan Jin,&nbsp;Wenxiu Xu,&nbsp;Linfeng Dai,&nbsp;Mingqi Chen,&nbsp;Weiyi Zhou,&nbsp;Xing Wang* and Ning Gu*,&nbsp;","doi":"10.1021/acsanm.4c0513410.1021/acsanm.4c05134","DOIUrl":"https://doi.org/10.1021/acsanm.4c05134https://doi.org/10.1021/acsanm.4c05134","url":null,"abstract":"<p >Acute pulmonary embolism (APE) is a life-threatening complication that is primarily caused by the migration of deep vein thrombosis to the lungs. However, current drug treatments have limited efficacy and can lead to lung ischemia–reperfusion injury (LIRI) after thrombolysis. Inhaled nitric oxide has shown potential for APE therapy, but its clinical feasibility is still uncertain. In this study, nitric oxide (NO) was directly encapsulated by nanobubbles to form NO-loaded nanobubbles (NanoNO) as a potential treatment for APE and subsequent LIRI. NanoNO, with a size of 219.27 ± 2.42 nm and a polydispersity index of 0.17, could encapsulate up to 1.1 mM NO. In the LIRI cell model, NanoNO increased NO concentration and superoxide dismutase (SOD) enzyme activities while reducing reactive oxygen species (ROS) and malondialdehyde (MDA) levels (2.80-fold), leading to decreased cell apoptosis. In a rabbit model of APE, NanoNO was compared to sodium nitroprusside (SNP, a positive control) for thrombolysis efficacy by using blood gas analysis, pulmonary angiography, echocardiography, and hematoxylin–eosin staining. The results demonstrated that NanoNO was more effective than SNP in thrombolysis, as evidenced by its better ability to remove blood clots, normalize pulmonary arteries, and relieve right ventricular (RV) dilatation. In the LIRI rabbit model, NanoNO decreased serum MDA, tumor necrosis factor-α (TNF-α), and interleukin-6 (IL-6) while increasing serum SOD. Collectively, these findings highlight the potential of NanoNO as a promising therapeutic approach for the treatment of APE and the mitigation of LIRI.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"7 23","pages":"27100–27109 27100–27109"},"PeriodicalIF":5.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142850549","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}
引用次数: 0
Controllable Epitaxial Growth of Adlayer-Free Hexagonal Boron Nitride Monolayers on Silicon-Incorporated Ni(111) Substrates for Metal–Insulator–Metal Tunneling Devices
IF 5.3 2区 材料科学
ACS Applied Nano Materials Pub Date : 2024-11-22 DOI: 10.1021/acsanm.4c0466010.1021/acsanm.4c04660
Yuan Li, Quazi Sanjid Mahmud, Chengyun Shou, Abdullah Almujtabi, Edward Zhu, Tianchen Yang and Jianlin Liu*, 
{"title":"Controllable Epitaxial Growth of Adlayer-Free Hexagonal Boron Nitride Monolayers on Silicon-Incorporated Ni(111) Substrates for Metal–Insulator–Metal Tunneling Devices","authors":"Yuan Li,&nbsp;Quazi Sanjid Mahmud,&nbsp;Chengyun Shou,&nbsp;Abdullah Almujtabi,&nbsp;Edward Zhu,&nbsp;Tianchen Yang and Jianlin Liu*,&nbsp;","doi":"10.1021/acsanm.4c0466010.1021/acsanm.4c04660","DOIUrl":"https://doi.org/10.1021/acsanm.4c04660https://doi.org/10.1021/acsanm.4c04660","url":null,"abstract":"<p >Atomically thin hexagonal boron nitride (h-BN) is heralded as the quintessential dielectric for two-dimensional (2D) material-based electronic devices owing to its exceptional properties. The controlled growth of high-uniformity and high-quality 2D h-BN single crystals stands pivotal for diverse applications. Substrate property is one of the crucial factors that influence the quality of epitaxial 2D h-BN films. In this work, we report the study of the molecular beam epitaxial growth of adlayer-free single-crystal h-BN monolayers on Si-incorporated Ni (111) substrates. It was found that Si-incorporated Ni (111) substrates greatly enhanced the uniformity and quality of h-BN monolayer films by eliminating the formation of 3D adlayers during growth. The structural, optical, and electrical properties of these h-BN monolayers were comprehensively characterized. Metal–insulator–metal (MIM) tunneling devices and nanocapacitors were fabricated based on h-BN monolayers to validate their high performance. Our work provides a promising pathway toward the growth of high-quality 2D h-BN and beyond.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"7 23","pages":"26794–26803 26794–26803"},"PeriodicalIF":5.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142843060","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}
引用次数: 0
Ag-Doped SnSe Nanosheets for Enhanced NIR-II Light-Induced Apoptosis
IF 5.3 2区 材料科学
ACS Applied Nano Materials Pub Date : 2024-11-22 DOI: 10.1021/acsanm.4c0493210.1021/acsanm.4c04932
Dequan Xiao, Yan Gong, Jing Zhang, Hui Liu* and Lile Dong*, 
{"title":"Ag-Doped SnSe Nanosheets for Enhanced NIR-II Light-Induced Apoptosis","authors":"Dequan Xiao,&nbsp;Yan Gong,&nbsp;Jing Zhang,&nbsp;Hui Liu* and Lile Dong*,&nbsp;","doi":"10.1021/acsanm.4c0493210.1021/acsanm.4c04932","DOIUrl":"https://doi.org/10.1021/acsanm.4c04932https://doi.org/10.1021/acsanm.4c04932","url":null,"abstract":"<p >Triple-negative breast cancer (TNBC) is one of the most aggressive and challenging subtypes with limited treatment options and poor prognosis. To overcome these obstacles, Ag-doped SnSe (ASS) nanosheets were used as photonic hyperthermia agents for treating TNBC. ASS featured a high photothermal-conversion efficiency and photon hyperthermia effect. Additionally, biosafety assessments, including hemolysis assays and histopathological analysis, confirmed that ASS was biosafety. These findings suggest that ASS, in synergy with the second near-infrared biowindow (NIR-II) light irradiation, offers a noninvasive, effective, and safe therapeutic strategy for TNBC. This innovative approach exemplifies the evolving landscape of TNBC treatment, where technology and biology converge to offer more precise and personalized therapies.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"7 23","pages":"26919–26927 26919–26927"},"PeriodicalIF":5.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142850981","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}
引用次数: 0
Energetic Al-Coated 5,5′-Dinitro-3,3′-bi(1,2,4-triazole) Green Functionalized Cu Nanosheet Films for Ignition-Able Micro Devices
IF 5.3 2区 材料科学
ACS Applied Nano Materials Pub Date : 2024-11-22 DOI: 10.1021/acsanm.4c0581410.1021/acsanm.4c05814
Yapeng Yao, Xiaodong Gou, Wei Liu*, Zihang Liang, Jiangbo Zhang and Zhongliang Ma, 
{"title":"Energetic Al-Coated 5,5′-Dinitro-3,3′-bi(1,2,4-triazole) Green Functionalized Cu Nanosheet Films for Ignition-Able Micro Devices","authors":"Yapeng Yao,&nbsp;Xiaodong Gou,&nbsp;Wei Liu*,&nbsp;Zihang Liang,&nbsp;Jiangbo Zhang and Zhongliang Ma,&nbsp;","doi":"10.1021/acsanm.4c0581410.1021/acsanm.4c05814","DOIUrl":"https://doi.org/10.1021/acsanm.4c05814https://doi.org/10.1021/acsanm.4c05814","url":null,"abstract":"<p >Integrating energetic materials into microelectromechanical system (MEMS) to enhance their energy output characteristics has shown extensive potential across aerospace, defense, and civilian applications. Within this study, the MEMS compatible Cu/DNBT (DNBT = [5,5′-dinitro-3,3′-bi(1,2,4-triazole)]) and Cu/DNBT@nano-Al energetic films were successfully synthesized on the copper substrate using an electrochemical method and a drip coating method. The scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), differential thermal analyses (DTA), and a pulse laser ignition test were used to analyze the morphology, composition, thermal performance, and ignition properties of the prepared samples. The findings indicate that the prepared Cu/DNBT and Cu/DNBT@nano-Al energetic films exhibit a nanostructure, and their morphology can be effectively regulated via modifications to the deposition voltage, deposition time, and aluminum plating frequency. Furthermore, the energetic properties of Cu/DNBT@nano-Al films can be adjusted after the deposition of nano-Al. Their heat release, flame height and ignition duration can reach up to 1823.1 J·g<sup>–1</sup>, 13.5 mm, and 400 μs, respectively. These findings suggest that Cu/DNBT@nano-Al energetic films being a prime contender for initiating powders in MEMS pyrotechnics. In summary, this work offers valuable insights into the integration and application of energetic materials in MEMS ignition devices.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"7 23","pages":"27698–27705 27698–27705"},"PeriodicalIF":5.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142851078","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}
引用次数: 0
NiPd Nanoparticles Deposited on CeO2 Nanorods as Catalysts for Enhancing Hydrogen Storage in MgH2
IF 5.3 2区 材料科学
ACS Applied Nano Materials Pub Date : 2024-11-22 DOI: 10.1021/acsanm.4c0524510.1021/acsanm.4c05245
Yu Xu, Houqun Xiao, Jiekai Xu, Huazhou Hu, Chenyu Li, Songsong Li, Ruizhu Tang, Chuanming Ma, Luocai Yi* and Qingjun Chen*, 
{"title":"NiPd Nanoparticles Deposited on CeO2 Nanorods as Catalysts for Enhancing Hydrogen Storage in MgH2","authors":"Yu Xu,&nbsp;Houqun Xiao,&nbsp;Jiekai Xu,&nbsp;Huazhou Hu,&nbsp;Chenyu Li,&nbsp;Songsong Li,&nbsp;Ruizhu Tang,&nbsp;Chuanming Ma,&nbsp;Luocai Yi* and Qingjun Chen*,&nbsp;","doi":"10.1021/acsanm.4c0524510.1021/acsanm.4c05245","DOIUrl":"https://doi.org/10.1021/acsanm.4c05245https://doi.org/10.1021/acsanm.4c05245","url":null,"abstract":"<p >Magnesium hydride (MgH<sub>2</sub>) stands out as one of the most promising hydrogen storage materials due to its high hydrogen storage capacity and low cost. Nevertheless, its sluggish kinetics and remarkable stability pose significant challenges, restricting its widespread practical application. In this study, we successfully synthesized a CeO<sub>2</sub>-supported NiPd catalyst (NiPd/CeO<sub>2</sub>) by firmly embedding a small amount of Ni<sub>0.5</sub>Pd<sub>0.5</sub> alloy nanoparticles on CeO<sub>2</sub> nanorods. This catalyst notably lowered the initial dehydrogenation temperature of MgH<sub>2</sub> from over 300 to 219 °C. When 10 wt % of the NiPd/CeO<sub>2</sub> was incorporated into MgH<sub>2</sub>, the resulting composites exhibited impressive hydrogen storage kinetics. Specifically, they were able to release approximately 6 wt % H<sub>2</sub> within 500 s at 350 °C and absorb about 6.4 wt % H<sub>2</sub> in just 40 s at 250 °C. Furthermore, these composites showed excellent cycling stability, maintaining over 90% of their hydrogen storage capacity after 20 cycles. Combining multiple characterization techniques revealed that the excellent catalytic performance was primarily attributed to the rich oxygen vacancies on the CeO<sub>2</sub> nanorods, which facilitated the strong embedding of Ni<sub>0.5</sub>Pd<sub>0.5</sub> nanoparticles on CeO<sub>2</sub>. This, in turn, led to a synergistic effect between Ni, Pd, and CeO<sub>2</sub>. The <i>in situ</i>-formed Mg<sub>6</sub>Ni/Mg<sub>6</sub>Pd functions as a “hydrogen pump”, facilitating enhanced hydrogen absorption and dehydrogenation processes in MgH<sub>2</sub>. These results offer valuable insights into the design of catalysts and the identification of active species involved in modifying MgH<sub>2</sub>.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"7 23","pages":"27426–27435 27426–27435"},"PeriodicalIF":5.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142851077","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}
引用次数: 0
Combinatorial Printing of Iron and Cobalt Reactive Inks to Produce Magnetic Amorphous and Nanocrystalline Metals
IF 5.3 2区 材料科学
ACS Applied Nano Materials Pub Date : 2024-11-22 DOI: 10.1021/acsanm.4c0504710.1021/acsanm.4c05047
Collin E. Miller, Joshua Edwards, Chris Matsumura, Matthew Michael Schneider, Serena Eley, Suveen N. Mathaudhu and Owen J. Hildreth*, 
{"title":"Combinatorial Printing of Iron and Cobalt Reactive Inks to Produce Magnetic Amorphous and Nanocrystalline Metals","authors":"Collin E. Miller,&nbsp;Joshua Edwards,&nbsp;Chris Matsumura,&nbsp;Matthew Michael Schneider,&nbsp;Serena Eley,&nbsp;Suveen N. Mathaudhu and Owen J. Hildreth*,&nbsp;","doi":"10.1021/acsanm.4c0504710.1021/acsanm.4c05047","DOIUrl":"https://doi.org/10.1021/acsanm.4c05047https://doi.org/10.1021/acsanm.4c05047","url":null,"abstract":"<p >Reactive inks are an attractive method to selectively pattern metallic features with minimal post-processing. While significant progress has been made developing silver and copper reactive inks for printed electronics, less progress has been made in developing metal reactive inks with properties suitable for structural or magnetic applications. To address this gap, this work introduces particle-free iron and cobalt metal reactive inks to print magnetic iron and cobalt metals. Interestingly, structure analysis of the printed reactive inks showed that the iron reactive ink produced fully amorphous iron and the cobalt reactive ink produced nanocrystals dispersed in an amorphous matrix. This work also demonstrates two combinatorial methods of printing these inks: by mixing the two inks together to produce amorphous iron–cobalt alloys and by spatially patterning the iron and cobalt monometallic inks to achieve control over both the local composition and the correlated atomic structure. Triiron dodecacarbonyl and dicobalt octacarbonyl are used as the iron and cobalt metal precursors, respectively, because these zerovalent metal complexes directly decompose to metal and carbon monoxide gas. The printed metals’ elemental and chemical compositions were evaluated using energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and Mössbauer effect spectroscopy showing that the amorphous phases are likely stabilized by either remnant carbonyl bonds from incomplete decomposition of the metal carbonyl or residual octylamine solvent interacting with the metal atoms. Additional characterization includes resistivity measurements to verify metallic conductivity, nanoindentation to quantify hardness, and magnetometry studies to quantify the magnetic performance. As a demonstration, the Fe and Co reactive inks were sequentially printed in a combinatorial layer-by-layer manner to produce a vertically graded iron and cobalt line, as well as a matrix of nanocrystalline cobalt dots on an amorphous iron film. Overall, this work introduces a method to directly print continuous, amorphous, magnetic, and structural alloys at moderate temperatures from a particle-free reactive ink.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"7 23","pages":"27052–27063 27052–27063"},"PeriodicalIF":5.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142850980","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}
引用次数: 0
Theoretical Study of the Impact and Control of Topological Defects on the Electrical Properties of Single-Walled Carbon Nanotubes: Implications for Carbon-Based Transistor Regulation
IF 5.3 2区 材料科学
ACS Applied Nano Materials Pub Date : 2024-11-21 DOI: 10.1021/acsanm.4c0437610.1021/acsanm.4c04376
Xiaojing Wang, Qingyang Xu, Hangkong Ouyang, Lining Sun and Li Ma*, 
{"title":"Theoretical Study of the Impact and Control of Topological Defects on the Electrical Properties of Single-Walled Carbon Nanotubes: Implications for Carbon-Based Transistor Regulation","authors":"Xiaojing Wang,&nbsp;Qingyang Xu,&nbsp;Hangkong Ouyang,&nbsp;Lining Sun and Li Ma*,&nbsp;","doi":"10.1021/acsanm.4c0437610.1021/acsanm.4c04376","DOIUrl":"https://doi.org/10.1021/acsanm.4c04376https://doi.org/10.1021/acsanm.4c04376","url":null,"abstract":"<p >Single-wall carbon nanotubes (SWCNTs) have unique electrical properties, making them potential silicon and copper replacements in semiconductors and nanointerconnects. Current research focuses on single vacancy defects, needing expansion to other topological defects. In this study, we account for the presence of topological defects and develop a model that demonstrates their impact on the electrical properties of carbon nanotubes (CNTs) by using a degradation coefficient for the conductivity. This study employs density functional theory combined with the nonequilibrium Green’s function method to systematically analyze the influence of various topological defects on the electronic structure and transport characteristics of SWCNTs, using <i>I–V</i> curves, transmission spectra, and 3D transmission spectra. The results indicate that defects of the same type substantially degrade the electronic transport properties of CNTs, with the degree of degradation varying based on the defects’ positions and quantities. This degradation can result in a reduction of over 20% in the electronic transport capacity compared with ideal CNTs. A linear positive correlation exists between the extent of degradation and the magnitude of the defects. Furthermore, the presence of a small number of 5–8–5 defects and Stone–Wales defects can induce bandgap opening from 0.109 to 0.549 eV for the bandgap of (6,6) CNTs. However, a high defect concentration reduces the bandgap, potentially to zero. Notably, regardless of whether the bandgap increases or decreases, the bandgap of (6,6) CNTs remains smaller than the bandgap of (11,0) semiconductor CNTs, leading to the transition of SWCNTs to metallic conductors. Finally, the differential conductivity diagram of CNTs with topological defects was analyzed, demonstrating that introducing specific 5–8–5 defects can effectively regulate the electrical properties of the CNTs. This paper analyzes the effects of defects on the CNTs electrical properties and finds a regulatory effect, providing a reference for carbon-based transistor manufacturing.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"7 23","pages":"26727–26736 26727–26736"},"PeriodicalIF":5.3,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142843162","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}
引用次数: 0
Ultrasensitive Photoelectrochemical Biosensor for BRCA-1 Detection Based on MoS2/CdIn2S4 Heterojunctions and an FePdMnCoPt High-Entropy Alloy Nanozyme
IF 5.3 2区 材料科学
ACS Applied Nano Materials Pub Date : 2024-11-21 DOI: 10.1021/acsanm.4c0523510.1021/acsanm.4c05235
Jia-Yan Ye, Jia-Lin Li, Yi-Hong Chen, Li-Ping Mei, Ai-Jun Wang, Pei Song* and Jiu-Ju Feng*, 
{"title":"Ultrasensitive Photoelectrochemical Biosensor for BRCA-1 Detection Based on MoS2/CdIn2S4 Heterojunctions and an FePdMnCoPt High-Entropy Alloy Nanozyme","authors":"Jia-Yan Ye,&nbsp;Jia-Lin Li,&nbsp;Yi-Hong Chen,&nbsp;Li-Ping Mei,&nbsp;Ai-Jun Wang,&nbsp;Pei Song* and Jiu-Ju Feng*,&nbsp;","doi":"10.1021/acsanm.4c0523510.1021/acsanm.4c05235","DOIUrl":"https://doi.org/10.1021/acsanm.4c05235https://doi.org/10.1021/acsanm.4c05235","url":null,"abstract":"<p >Breast cancer susceptibility protein-1 (BRCA-1) is a gene directly associated with hereditary breast cancer. BRCA-1 suppresses tumorigenesis, which is crucially involved in cell replication regulation and DNA damage repair, coupled by maintaining normal cell growth. Its accurate and straightforward analysis is essential for clinical diagnosis and treatment. In this study, we fabricated photoactive Z-schemed MoS<sub>2</sub>/CdIn<sub>2</sub>S<sub>4</sub> heterojunctions via hydrothermal synthesis and comprehensively characterized their optical properties using various techniques, with a focus on understanding the interfacial charge transfer process. At the same time, FePdMnCoPt high-entropy alloy/N-doped carbon spheres (termed FePdMnCoPt HEA/NCS) were prepared by confined adsorption and pyrolysis, and their ability to mimic peroxidase (POD)-like acitvity was investigated by oxidation of 3,3′5,5′-tetramethylbenzidine (TMB) in the presence of H<sub>2</sub>O<sub>2</sub>. On such basis, a MoS<sub>2</sub>/CdIn<sub>2</sub>S<sub>4</sub>-based photoelectrochemical (PEC) sensor was established for the analysis of BRCA-1. The detection signal was greatly amplified by the catalytic precipitation reaction for 4-chloro-1-naphthol (4-CN) oxidation, as assisted by the FePdMnCoPt HEA/NCS nanozyme. The developed PEC sensor had a broad detection range of (0.1–1.0) × 10<sup>5</sup> pg mL<sup>–1</sup> with a lower detection limit of 1.00 pg mL<sup>–1</sup>. This study has developed a ultrasensitive PEC biosensor for the quantitative detection of BRCA-1, which holds great promise for clinical diagnosis.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"7 23","pages":"27197–27209 27197–27209"},"PeriodicalIF":5.3,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142843386","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}
引用次数: 0
Machine Learning-Driven Multidomain Nanomaterial Design: From Bibliometric Analysis to Applications 机器学习驱动的多域纳米材料设计:从文献计量分析到应用
IF 5.3 2区 材料科学
ACS Applied Nano Materials Pub Date : 2024-11-21 DOI: 10.1021/acsanm.4c0494010.1021/acsanm.4c04940
Hong Wang, Hengyu Cao and Liang Yang*, 
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