Nanomaterials最新文献_第10页

Toward Standardization of a Lung New Approach Model for Toxicity Testing of Nanomaterials.

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2024-11-24 DOI: 10.3390/nano14231888

Elisabeth Elje, Laura M A Camassa, Sergey Shaposhnikov, Kristine Haugen Anmarkrud, Øivind Skare, Asbjørn M Nilsen, Shan Zienolddiny-Narui, Elise Rundén-Pran

{"title":"Toward Standardization of a Lung New Approach Model for Toxicity Testing of Nanomaterials.","authors":"Elisabeth Elje, Laura M A Camassa, Sergey Shaposhnikov, Kristine Haugen Anmarkrud, Øivind Skare, Asbjørn M Nilsen, Shan Zienolddiny-Narui, Elise Rundén-Pran","doi":"10.3390/nano14231888","DOIUrl":"https://doi.org/10.3390/nano14231888","url":null,"abstract":"This study represents an attempt toward the standardization of pulmonary NAMs and the development of a novel approach for toxicity testing of nanomaterials. Laboratory comparisons are challenging yet essential for identifying existing limitations and proposing potential solutions. Lung cells cultivated and exposed at the air-liquid interface (ALI) more accurately represent the physiology of human lungs and pulmonary exposure scenarios than submerged cell and exposure models. A triculture cell model system was used, consisting of human A549 lung epithelial cells and differentiated THP-1 macrophages on the apical side, with EA.hy926 endothelial cells on the basolateral side. The cells were exposed to silver nanoparticles NM-300K for 24 h. The model used here showed to be applicable for assessing the hazards of nanomaterials and chemicals, albeit with some limitations. Cellular viability was measured using the alamarBlue assay, DNA damage was assessed with the enzyme-modified comet assay, and the expression of 40 genes related to cell viability, inflammation, and DNA damage response was evaluated through RT2 gene expression profiling. Despite harmonized protocols used in the two independent laboratories, however, some methodological challenges could affect the results, including sensitivity and reproducibility of the model.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"14 23","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142838053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

C/Ni/N Nanocomposites Based on Hydrolysis Lignin: Synthesis, Study of Structural and Magnetic Properties.

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2024-11-23 DOI: 10.3390/nano14231886

Ihor Bordun, Dariusz Calus, Ewelina Szymczykiewicz, Myroslav Malovanyy, Nazar Nahurskyi, Anatoliy Borysiuk, Yuriy Kulyk

{"title":"C/Ni/N Nanocomposites Based on Hydrolysis Lignin: Synthesis, Study of Structural and Magnetic Properties.","authors":"Ihor Bordun, Dariusz Calus, Ewelina Szymczykiewicz, Myroslav Malovanyy, Nazar Nahurskyi, Anatoliy Borysiuk, Yuriy Kulyk","doi":"10.3390/nano14231886","DOIUrl":"https://doi.org/10.3390/nano14231886","url":null,"abstract":"A two-step method for the synthesis of C/Ni/N nanocomposites based on hydrolysis lignin from wood chemical processing waste is proposed. These nanocomposites were found to have a well-developed porous structure with a wide pore size distribution. It was shown that doping hydrolysis lignin with urea-derived nitrogen leads to the appearance of ferromagnetic behavior in the carbon material. When nickel chloride was added during pyrolysis, the magnetic behavior of the C/Ni/N composite was provided by superparamagnetic Ni particles less than 30 nm in size and the magnetism of the carbon matrix. The addition of urea during the synthesis of the nanocomposite further promotes better integration of nickel into the carbon structure. According to the results of magnetic studies, the nickel content in the C/Ni/N nanocomposite was 19 wt.% compared to 15 wt.% in the C/Ni nanocomposite. The synthesized nanocomposite was demonstrated to have no residual magnetization, so its particles do not agglomerate after the external magnetic field is removed. Due to this property and the well-developed porous structure, C/Ni/N composites have the potential to be used as catalysts, active electrode materials for autonomous energy sources, and in environmental technologies as magnetically sensitive adsorbents.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"14 23","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142837895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Biomaterial Promotes Triboelectric Nanogenerator for Health Diagnostics and Clinical Application.

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2024-11-23 DOI: 10.3390/nano14231885

Qiliang Zhu, Enqi Sun, Yuchen Sun, Xia Cao, Ning Wang

引用次数: 0

Bamboo Kraft Pulp Black Liquor as a Renewable Source of Value-Added Carbon Dots.

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2024-11-23 DOI: 10.3390/nano14231887

Xiaolong Qiao, Shixing Wang, Qiulian Liu, Yuanming Zhang, Guangting Han, Haoxi Ben, Wei Jiang, Haiguang Zhao, Yan Song

{"title":"Bamboo Kraft Pulp Black Liquor as a Renewable Source of Value-Added Carbon Dots.","authors":"Xiaolong Qiao, Shixing Wang, Qiulian Liu, Yuanming Zhang, Guangting Han, Haoxi Ben, Wei Jiang, Haiguang Zhao, Yan Song","doi":"10.3390/nano14231887","DOIUrl":"https://doi.org/10.3390/nano14231887","url":null,"abstract":"China is the country with the most abundant bamboo resources in the world. Using bamboo as a raw material for pulping and papermaking can save a lot of wood and protect forests. Bamboo pulping enterprises mostly adopt sulfate processes to produce a large amount of black liquor (BL), which contains monosaccharides, polysaccharides, oligosaccharides, pectin, lignin, etc. The utilization of the high-value organic matter is of great economic and environmental significance. In this study, blue-green carbon dots (C-dots) were prepared from bamboo (Lingnania chungii) kraft pulp BL using a hydrothermal method. The changes in carbohydrate content in BL in relation to hydrothermal temperature and hydrothermal time were discussed in detail. Then, a series of characterizations of BL-C-dots, prepared under one of the hydrothermal conditions (180 °C, 6 h), were performed and the BL-C-dots showed an excitation-dependent photoluminescence (PL) spectrum and a quantum yield (QY) of 2.9% in an aqueous solution. Finally, the as-prepared BL-C-dots were successfully used as fluorescent materials to develop an anti-counterfeiting code. The fluorescent code exhibited a clear outline, an excitation-tunable color, good stability, and high security, showing great anti-counterfeiting potential and realizing the high-value utilization of BL.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"14 23","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142837876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Carbonized Apples and Quinces Stillage for Electromagnetic Shielding. 用于电磁屏蔽的碳化苹果和榅桲蒸馏器。

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2024-11-23 DOI: 10.3390/nano14231882

Mila Milenkovic, Warda Saeed, Muhammad Yasir, Dusan Milivojevic, Ali Azmy, Kamal E S Nassar, Zois Syrgiannis, Ioannis Spanopoulos, Danica Bajuk-Bogdanovic, Snežana Maletić, Djurdja Kerkez, Tanja Barudžija, Svetlana Jovanović

{"title":"Carbonized Apples and Quinces Stillage for Electromagnetic Shielding.","authors":"Mila Milenkovic, Warda Saeed, Muhammad Yasir, Dusan Milivojevic, Ali Azmy, Kamal E S Nassar, Zois Syrgiannis, Ioannis Spanopoulos, Danica Bajuk-Bogdanovic, Snežana Maletić, Djurdja Kerkez, Tanja Barudžija, Svetlana Jovanović","doi":"10.3390/nano14231882","DOIUrl":"https://doi.org/10.3390/nano14231882","url":null,"abstract":"Electromagnetic waves (EMWs) have become an integral part of our daily lives, but they are causing a new form of environmental pollution, manifesting as electromagnetic interference (EMI) and radio frequency signal leakage. As a result, the demand for innovative, eco-friendly materials capable of blocking EMWs has escalated in the past decade, underscoring the significance of our research. In the realm of modern science, the creation of new materials must consider the starting materials, production costs, energy usage, and the potential for air, water, and soil pollution. Herein, we utilized biowaste materials generated during the distillation of fruit schnapps. The biowaste from apple and quince schnapps distillation was used as starting material, mixed with KOH, and carbonized at 850 °C, in a nitrogen atmosphere. The structure of samples was investigated using various techniques (infrared, Raman, energy-dispersive X-ray, X-ray photoelectron spectroscopies, thermogravimetric analysis, BET surface area analyzer). Encouragingly, these materials demonstrated the ability to block EMWs within a frequency range of 8 to 12 GHz. Shielding efficiency was measured using waveguide adapters connected to ports (1 and 2) of the vector network analyzer using radio-frequency coaxial cables. At a frequency of 10 GHz, carbonized biowaste blocks 78.5% of the incident electromagnetic wave.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"14 23","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142836878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

High-Performance Memristive Synapse Based on Space-Charge-Limited Conduction in LiNbO₃.

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2024-11-23 DOI: 10.3390/nano14231884

Youngmin Lee, Sejoon Lee

{"title":"High-Performance Memristive Synapse Based on Space-Charge-Limited Conduction in LiNbO3.","authors":"Youngmin Lee, Sejoon Lee","doi":"10.3390/nano14231884","DOIUrl":"https://doi.org/10.3390/nano14231884","url":null,"abstract":"Advancing neuromorphic computing technology requires the development of versatile synaptic devices. In this study, we fabricated a high-performance Al/LiNbO3/Pt memristive synapse and emulated various synaptic functions using its primary key operating mechanism, known as oxygen vacancy-mediated valence charge migration (VO-VCM). The voltage-controlled VO-VCM induced space-charge-limited conduction and self-rectifying asymmetric hysteresis behaviors. Moreover, the device exhibited voltage pulse-tunable multi-state memory characteristics because the degree of VO-VCM was dependent on the applied pulse parameters (e.g., polarity, amplitude, width, and interval). As a result, synaptic functions such as short-term memory, dynamic range-tunable long-term memory, and spike time-dependent synaptic plasticity were successfully demonstrated by modulating those pulse parameters. Additionally, simulation studies on hand-written image pattern recognition confirmed that the present device performed with high accuracy, reaching up to 95.2%. The findings suggest that the VO-VCM-based Al/LiNbO3/Pt memristive synapse holds significant promise as a brain-inspired neuromorphic device.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"14 23","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142838029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Thin Films of BaM Hexaferrite with an Inclined Orientation of the Easy Magnetization Axis: Crystal Structure and Magnetic Properties.

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2024-11-23 DOI: 10.3390/nano14231883

Boris Krichevtsov, Alexander Korovin, Vladimir Fedorov, Sergey Suturin, Aleksandr A Levin, Andrey Telegin, Elena Balashova, Nikolai Sokolov

{"title":"Thin Films of BaM Hexaferrite with an Inclined Orientation of the Easy Magnetization Axis: Crystal Structure and Magnetic Properties.","authors":"Boris Krichevtsov, Alexander Korovin, Vladimir Fedorov, Sergey Suturin, Aleksandr A Levin, Andrey Telegin, Elena Balashova, Nikolai Sokolov","doi":"10.3390/nano14231883","DOIUrl":"https://doi.org/10.3390/nano14231883","url":null,"abstract":"Thin (~50 nm thick) BaM hexaferrite (BaFe12O19) films were grown on (1-102) and (0001) cut α-Al2O3 (sapphire) substrates via laser molecular beam epitaxy using a one- or two-stage growth protocol. The advantages of a two-stage protocol are shown. The surface morphology, structural and magnetic properties of films were studied using atomic force microscopy, reflected high-energy electron diffraction, three-dimensional X-ray diffraction reciprocal space mapping, powder X-ray diffraction, magneto-optical, and magnetometric methods. Annealed BaFe12O19/Al2O3 (1-102) structures consist of close-packed islands epitaxially bonded to the substrate. The hexagonal crystallographic axis and the easy axis (EA) of the magnetization of the films are deflected from the normal to the film by an angle of φ~60°. The films exhibit magnetic hysteresis loops for both in-plane Hin-plane and out-of-plane Hout-of-plane magnetic fields. The shape of Mout-of-plane(Hin-plane) and Min-plane(Hin-plane) hysteresis loops strongly depends on the azimuth θ of the Hin plane, confirming the tilted orientation of the EA. The Mout-of-plane(Hout-of-plane) magnetization curves are caused by the reversible rotation of magnetization and irreversible magnetization jumps associated with the appearance and motion of domain walls. In the absence of a magnetic field, the magnetization is oriented at an angle close to φ.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"14 23","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142838050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Syngas from Reforming Methane and Carbon Dioxide on Ni@M(SiO₂ and CeO₂).

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2024-11-22 DOI: 10.3390/nano14231877

Derun Hua, Jian Li, Xiaowen Guo, Xinning Lu, Hao Ding, Rengui He

引用次数: 0

Permanent Strain Engineering of Molybdenum Disulfide Using Laser-Driven Stressors for Energy-Efficient Resistive Switching Memory Devices.

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2024-11-22 DOI: 10.3390/nano14231872

Heeyoon Jang, Seok-Ki Hyeong, Byeongjin Park, Tae-Wook Kim, Sukang Bae, Sung Kyu Jang, Yonghun Kim, Seoung-Ki Lee

{"title":"Permanent Strain Engineering of Molybdenum Disulfide Using Laser-Driven Stressors for Energy-Efficient Resistive Switching Memory Devices.","authors":"Heeyoon Jang, Seok-Ki Hyeong, Byeongjin Park, Tae-Wook Kim, Sukang Bae, Sung Kyu Jang, Yonghun Kim, Seoung-Ki Lee","doi":"10.3390/nano14231872","DOIUrl":"https://doi.org/10.3390/nano14231872","url":null,"abstract":"Strain engineering provides an attractive approach to enhance device performance by modulating the intrinsic electrical properties of materials. This is especially applicable to 2D materials, which exhibit high sensitivity to mechanical stress. However, conventional methods, such as using polymer substrates, to apply strain have limitations in that the strain is temporary and global. Here, we introduce a novel approach to induce permanent localized strain by fabricating a stressor on SiO2/Si substrates using fiber laser irradiation, thereby enabling precise control of the surface topography. MoS2 is transferred onto this stressor, which results in the application of ~0.8% tensile strain. To assess the impact of the internal strain on the operation of ReRAM devices, the flat-MoS2-based and the strained-MoS2-based devices are compared. Both devices demonstrate forming-free, bipolar, and non-volatile switching characteristics. The strained devices exhibit a 30% reduction in the operating voltage, which can be attributed to bandgap narrowing and enhanced carrier mobility. Furthermore, the strained devices exhibit nearly a two-fold improvement in endurance, presumably because of the enhanced stability from lattice release effect. These results emphasize the potential of strain engineering for advancing the performance and durability of next-generation memory devices.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"14 23","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142837753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Nanocarrier-Based Eco-Friendly RNA Pesticides for Sustainable Management of Plant Pathogens and Pests. 基于纳米载体的生态友好型 RNA 杀虫剂，用于植物病原体和害虫的可持续管理。

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2024-11-22 DOI: 10.3390/nano14231874

Heng Qiao, Jingyi Chen, Min Dong, Jie Shen, Shuo Yan

{"title":"Nanocarrier-Based Eco-Friendly RNA Pesticides for Sustainable Management of Plant Pathogens and Pests.","authors":"Heng Qiao, Jingyi Chen, Min Dong, Jie Shen, Shuo Yan","doi":"10.3390/nano14231874","DOIUrl":"https://doi.org/10.3390/nano14231874","url":null,"abstract":"The production of healthy agricultural products has increased the demand for innovative and sustainable plant protection technologies. RNA interference (RNAi), described as post-transcriptional gene silencing, offers great opportunities for developing RNA pesticides for sustainable disease and pest control. Compared with traditional synthesized pesticides, RNA pesticides possess many advantages, such as strong targeting, good environmental compatibility, and an easy development process. In this review, we systematically introduce the development of RNAi technology, highlight the advantages of RNA pesticides, and illustrate the challenges faced in developing high-efficiency RNA pesticides and the benefits of nanocarriers. Furthermore, we introduce the process and mechanism of nanocarrier-mediated RNAi technology, summarize the applications of RNA pesticides in controlling plant pathogens and pests, and finally outline the current challenges and future prospects. The current review provides theoretical guidance for the in-depth research and diversified development of RNA pesticides, which can promote the development and practice of nanocarrier-mediated RNAi.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"14 23","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142837029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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