ACS Applied Nano Materials最新文献

Integration of NiTiO3 Films onto TiO2 Nanorods as Photoanodes for Glucose Detection with Near-Infrared Light 将 NiTiO3 薄膜集成到 TiO2 纳米棒上，作为利用近红外线检测葡萄糖的光阳极

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-02 DOI: 10.1021/acsanm.4c0366010.1021/acsanm.4c03660

Yahan Wu, Jiaqi Zhang, Shun Zhao, Yueping Li, Pingru Cai, Dandan Zheng*, Guoen Cai* and Yuanxing Fang*,

引用次数: 0

The Role of Iodide in the Formation of Gold Nanotriangles 碘化物在金纳米三角形形成中的作用

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-02 DOI: 10.1021/acsanm.4c0511810.1021/acsanm.4c05118

Jun Zhu, and , R. Bruce Lennox*,

{"title":"The Role of Iodide in the Formation of Gold Nanotriangles","authors":"Jun Zhu,  and , R. Bruce Lennox*, ","doi":"10.1021/acsanm.4c0511810.1021/acsanm.4c05118","DOIUrl":"https://doi.org/10.1021/acsanm.4c05118https://doi.org/10.1021/acsanm.4c05118","url":null,"abstract":"Gold nanotriangles, one of a family of nanoprisms, have attracted a great deal of interest due to their promising applications in catalysis, electronics, imaging, diagnostics, and photothermal therapy. The crucial role of iodide in the formation of anisotropic gold nanotriangle (AuNT) has been assigned to the inhibition of Au(111) facet growth and as a digestion agent (as I3–) of non-nanotriangle impurities. However, neither I– nor I3– are detectable in the reaction conditions of the growth solution. Instead, an Au(I) complex, [AuIyCl2–y]-, has been identified for the first time as a synthetic precursor of Au nanotriangles. This complex forms in solution on mixing AuCl4–, I–, and ascorbic acid. [AuIyCl2–y] is readily reduced by ascorbic acid to form in situ AuNP seeds. Preferential adsorption of in situ generated I– on the Au(111) facets of the Au(0)NP seeds, relative to the Au(100) edges of a developing plate, results in the selective growth of the latter compared to the former. Control of the formation and reaction conditions of this precursor complex provides an entry point to the sought-after reproducible, one-pot synthesis of AuNT. This refinement of the role of iodide introduces approaches to control the outcomes of the metal nanoparticle synthesis.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142407549","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

Carbon Defects on N-Doped Carbon Promote Catalytic Activity of Pd Nanoparticles for the Selective Hydrogenation of Quinoline 掺杂 N 的碳上的碳缺陷促进了钯纳米颗粒在喹啉选择性加氢反应中的催化活性

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-01 DOI: 10.1021/acsanm.4c0410010.1021/acsanm.4c04100

Binghui Zhou, Xinlei Ding, Yun Chen, Hanyang Wang, Yadong Liu, Chengfei Wang, Guangmei Bai and Wenge Qiu*,

{"title":"Carbon Defects on N-Doped Carbon Promote Catalytic Activity of Pd Nanoparticles for the Selective Hydrogenation of Quinoline","authors":"Binghui Zhou, Xinlei Ding, Yun Chen, Hanyang Wang, Yadong Liu, Chengfei Wang, Guangmei Bai and Wenge Qiu*, ","doi":"10.1021/acsanm.4c0410010.1021/acsanm.4c04100","DOIUrl":"https://doi.org/10.1021/acsanm.4c04100https://doi.org/10.1021/acsanm.4c04100","url":null,"abstract":"The activation process is a key step in preparing porous carbon. Herein, three kinds of green activators were separately used to successfully prepare N-doped porous carbons through a two-step strategy: hydrothermal carbonization and chemical activation using microcrystalline cellulose as the carbon source and urea as the nitrogen source. Palladium was deposited on these N-doped microcrystalline cellulose-based carbons (NMC-X, where X represents the activator) via a traditional deposition–precipitation method, and the resulting Pd nanoparticle catalysts (Pd/NMC-X) showed high activity in the selective hydrogenation of quinoline under mild conditions, particularly Pd/NMC-ZC (ZC, zinc carbonate), which achieved complete conversion of quinoline within 100 min at 40 °C and 4 atm H2. Characterization results suggest that the high activity of Pd/NMC-ZC is mainly attributed to the special electronic structure of its Pd species, particularly the distribution of valence states and reducibility of Pd and the high hydrogen spillover capacity between Pd and NMC-ZC. The chemical activation by ZC leads to the formation of multiple defect sites on the carbon skeleton, modifying the carbon surface properties to enhance hydrogen spillover. This also provides an excellent environment for Pd nanoparticle anchoring, thus increasing the Pd-support interactions and regulating the electronic structure of Pd.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142407724","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

Surface Alignment of Liquid Crystal Films on Nanometer-Thick 3D-Printed Line Patterns with Arbitrary Topologies: Implications for Polarization Gratings, Q-Plates, and Beam Steerers 具有任意拓扑结构的纳米厚三维打印线型上的液晶膜表面对准：对偏振光栅、Q 板和光束转向器的影响

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-01 DOI: 10.1021/acsanm.4c0219710.1021/acsanm.4c02197

Bruno Zappone*, Marco Giuseppe Geloso, Tiziana Ritacco, Maria Penelope De Santo, Atilla Eren Mamuk and Michele Giocondo,

{"title":"Surface Alignment of Liquid Crystal Films on Nanometer-Thick 3D-Printed Line Patterns with Arbitrary Topologies: Implications for Polarization Gratings, Q-Plates, and Beam Steerers","authors":"Bruno Zappone*, Marco Giuseppe Geloso, Tiziana Ritacco, Maria Penelope De Santo, Atilla Eren Mamuk and Michele Giocondo, ","doi":"10.1021/acsanm.4c0219710.1021/acsanm.4c02197","DOIUrl":"https://doi.org/10.1021/acsanm.4c02197https://doi.org/10.1021/acsanm.4c02197","url":null,"abstract":"Liquid crystal films play a key role in advancing next-generation optical and photonic devices that require a precise in-plane modulation of optical anisotropy. This study employs multiphoton direct laser writing, a high-resolution three-dimensional (3D) printing method, to fabricate pseudoperiodic patterns of lines and grooves on glass surfaces for the in-plane alignment of liquid crystal films. Single layers of lines with submicron thickness and line spacing were fabricated in less than half an hour and forced the in-plane alignment of a liquid crystal film with a thickness of about 10 μm. We validate the method on patterns with singular topologies designed to induce the nucleation of disclination defects with a predetermined spatial arrangement, orientation, and topological strength. Compared to other surface patterning methods, high-resolution 3D printing provides the unique advantage of direct surface fabrication, enabling the creation of nonflat geometries such as terraces and lenses and expanding the design and functionalities of liquid crystal devices. We anticipate that this method will be used to create thin-film devices such as polarization gratings, beam steerers, and q-plates for manipulating polarized and structured light.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142407725","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

Metronomic Mild-Temperature Photothermal Therapy Modulating Tumor-Associated Macrophage Repolarization as a Neoadjuvant Immunotherapy 调节肿瘤相关巨噬细胞极化的节律性低温光热疗法作为一种新辅助免疫疗法

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-01 DOI: 10.1021/acsanm.4c0439710.1021/acsanm.4c04397

Hanye Yao, Yixin Xing, Yuying Yin, Jingqiang Xue, Chenlu Yin and Wei Gu*,

{"title":"Metronomic Mild-Temperature Photothermal Therapy Modulating Tumor-Associated Macrophage Repolarization as a Neoadjuvant Immunotherapy","authors":"Hanye Yao, Yixin Xing, Yuying Yin, Jingqiang Xue, Chenlu Yin and Wei Gu*, ","doi":"10.1021/acsanm.4c0439710.1021/acsanm.4c04397","DOIUrl":"https://doi.org/10.1021/acsanm.4c04397https://doi.org/10.1021/acsanm.4c04397","url":null,"abstract":"Neoadjuvant immunotherapy is superior to adjuvant immunotherapy in terms of immune suppression relief and antitumor immunity activation but inevitably suffers from immune-related toxicities. To minimize the toxic side effects, a local metronomic mild-temperature photothermal therapy (PTT) is proposed herein as a neoadjuvant immunotherapy. It was disclosed that the Prussian blue nanoparticle (PBNP)-mediated metronomic mild-temperature PTT effectively inhibited the growth of both primary and distal tumors on 4T1 xenograft tumor-bearing mice by effectively reversing the immunoimpressive TME through repolarizing M2-like TAMs to tumoricidal M1-like ones. Synergistically, the reprogrammed M1-like phenotype upregulated the percentage of cytotoxic T lymphocytes in the spleen and tumor, leading to an activated systemic immunity. This together with the demonstrated biosafety underscores the great potential of PBNP-mediated metronomic mild-temperature PTT as immunotherapy for reducing tumor burden presurgery and preventing tumor reoccurrence and metastasis postsurgery with minimized side toxic effects.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142407720","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

Nanoparticles of CoFeZn Supported on N-Doped Carbon as Bifunctional Catalysts for Oxygen Reduction and Oxygen Evolution 以掺杂 N 的碳为载体的 CoFeZn 纳米粒子作为氧还原和氧进化的双功能催化剂

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-01 DOI: 10.1021/acsanm.4c0429110.1021/acsanm.4c04291

Hui-Juan Zhang*, Bo Chen, Xiaoxiong Feng, Miaomiao Yu, Jiangyu Luo and Yuhua Xue*,

{"title":"Nanoparticles of CoFeZn Supported on N-Doped Carbon as Bifunctional Catalysts for Oxygen Reduction and Oxygen Evolution","authors":"Hui-Juan Zhang*, Bo Chen, Xiaoxiong Feng, Miaomiao Yu, Jiangyu Luo and Yuhua Xue*, ","doi":"10.1021/acsanm.4c0429110.1021/acsanm.4c04291","DOIUrl":"https://doi.org/10.1021/acsanm.4c04291https://doi.org/10.1021/acsanm.4c04291","url":null,"abstract":"Oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are two important reactions in clean energy conversion devices. It is necessary to develop nonprecious metal-based bifunctional catalysts for ORR and OER. In this work, a multimetal bifunctional catalyst, nanoparticles of trimetallic CoFeZn supported on N-doped carbon (CoFeZn/NC), is prepared by one-step carbonizing the mixture of M-ZIFs (M = Fe, Co, and Zn), carbon black, and melamine. CoFeZn/NC has a more mesoporous structure and a higher specific surface area of 1029.6 m2/g compared to FeCo/NC, which is attributed to the easy volatilization of Zn at high temperatures. It also has high contents of pyridinic N (35.8%) and pyrrolic N (31.1%), abundant metal active sites, and exhibits strong synergistic effects between these nanoparticles of metals. Better than the single-metal catalysts (Co/NC, Fe/NC, and Zn/NC) and bimetallic catalysts (CoFe/NC, FeZn/NC, and CoZn/NC), CoFeZn/NC has an ORR peak potential of 0.90 V (vs. RHE) and a half-wave potential of 0.87 V (vs. RHE) in 0.1 M KOH solution, and exhibits excellent stability and methanol resistance. For OER, CoFeZn/NC has the lowest overpotential of 319.9 mV at a current density of 10 mA/cm2 and a Tafel slope of 82.47 mV dec–1.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142407618","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

Leaky 2T Dynamic Random-Access Memory Devices Based on Nanometer-Thick Indium–Gallium−Zinc-Oxide Films for Reservoir Computing 基于纳米厚氧化铟镓锌薄膜的漏电 2T 动态随机存取存储器件，用于存储计算

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-01 DOI: 10.1021/acsanm.4c0450110.1021/acsanm.4c04501

Junwon Jang, Seongmin Kim, Suyong Park, Soomin Kim, Sungjun Kim* and Seongjae Cho*,

引用次数: 0

Gold Nanocluster-Based Capture-Detection Platform for Clinical Diagnosis of Early Lung Cancer 基于金纳米簇的早期肺癌临床诊断捕获检测平台

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-09-30 DOI: 10.1021/acsanm.4c0438110.1021/acsanm.4c04381

Liping Dai, Zhi Wang, Fengqi Chen, Jiaqi Li, Hanke Ma, Wenke Sun, Songyun Ouyang and Xiuxia Wang*,

{"title":"Gold Nanocluster-Based Capture-Detection Platform for Clinical Diagnosis of Early Lung Cancer","authors":"Liping Dai, Zhi Wang, Fengqi Chen, Jiaqi Li, Hanke Ma, Wenke Sun, Songyun Ouyang and Xiuxia Wang*, ","doi":"10.1021/acsanm.4c0438110.1021/acsanm.4c04381","DOIUrl":"https://doi.org/10.1021/acsanm.4c04381https://doi.org/10.1021/acsanm.4c04381","url":null,"abstract":"The detection of autoantibodies (AAbs) with low-cost and noninvasiveness advantages has emerged as a promising technique for the diagnosis of early-stage lung cancer (LC). However, the specificity and sensitivity are frequently restricted to the characteristics of the antigens and the detection systems such as an enzyme-linked immunosorbent assay. Here, a highly sensitive and specific gold nanocluster-based capture-detection platform was developed to detect anti-PDL1 AAb as the biomarker of LC, for the diagnosis of early-stage LC. The nano capture-detection platform was composed of streptavidin magnetic beads conjugated PDL1 peptide (MB-peptide), serving as the capture probe, and goat-anti-human-IgG conjugated horseradish peroxidase-coated gold nanoclusters (anti-IgG-HRP-AuNCs) as the detection nanoprobe. Notably, the nanoplatform exhibited strikingly sensitive and specific detection of anti-PDL1 AAb, owing to the integration of the MB-peptide’s precision recognition capabilities with the excellent peroxidase activity and profound affinity for IgG displayed by the anti-IgG-HRP-AuNCs. Furthermore, the innovative nanoplatform harnessing optical detection technology significantly boosted detection efficiency and dramatically reduced the analysis time from the traditional 12 h process to a mere 50 min. Additionally, this advanced system demonstrated significantly enhanced sensitivity and specificity in diagnosing early-stage LC, substantiating the tremendous potential of the AuNCs-based capture-detection platform for clinical applications in the early detection of LC in the future.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142408217","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

Fabrication of Color-Tunable Gold Nanoclusters and Their Application for Information Encryption 可调色金纳米团簇的制备及其在信息加密中的应用

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-09-30 DOI: 10.1021/acsanm.4c0503410.1021/acsanm.4c05034

Fengjie Zhou, Jing Fu, Mengqi Yang, Jinglin Shen* and Wei Qi*,

引用次数: 0

Size- and Wavelength-Selective Optical Heating in Mie-Resonant Silicon Nanospheres for Nanothermometry and Photothermal Applications 用于纳米温度测量和光热应用的米褶共振硅纳米球的尺寸和波长选择性光学加热技术

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-09-30 DOI: 10.1021/acsanm.4c0438910.1021/acsanm.4c04389

Kana Kondo, Mojtaba Karimi Habil*, Kojiro Senda, Masato Adachi, Kenta Morita, Tatsuo Maruyama, Hiroshi Sugimoto* and Minoru Fujii,

{"title":"Size- and Wavelength-Selective Optical Heating in Mie-Resonant Silicon Nanospheres for Nanothermometry and Photothermal Applications","authors":"Kana Kondo, Mojtaba Karimi Habil*, Kojiro Senda, Masato Adachi, Kenta Morita, Tatsuo Maruyama, Hiroshi Sugimoto* and Minoru Fujii, ","doi":"10.1021/acsanm.4c0438910.1021/acsanm.4c04389","DOIUrl":"https://doi.org/10.1021/acsanm.4c04389https://doi.org/10.1021/acsanm.4c04389","url":null,"abstract":"The photothermal heating properties of perfectly spherical crystalline silicon nanoparticles having Mie resonances in the visible range are studied under different illumination wavelengths by using the Raman scattering peak as a nanothermometer. Analytical calculations reveal that the magnetic quadrupole (MQ) Mie mode is the most suitable mode for photothermal heating. The experimentally obtained size and illumination wavelength dependence of the temperature rise agrees quantitatively with numerical simulations, and the heating efficiency reaches up to 381 K/(mW/μm2) when the illumination wavelength of 633 nm matches the MQ resonance. Conversely, tuning the illumination wavelength to a relatively nonabsorbing mode, such as the electric dipole (ED) mode, can significantly reduce the heating effect. In this context, the ED mode functions as a practically heating-less nanoantenna, promoting the surface-enhanced fluorescence of nearby dye molecules, while high-Q modes, e.g., MQ and electric quadrupole (EQ) modes, serve as an optical heating platform. Furthermore, the photothermal heating and Raman thermometry of silicon nanoparticles in water and in cancer cells are demonstrated.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142408214","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