Nanomaterials最新文献_第3页

Green Synthesis of Sodium Alginate/Casein Gel Beads and Applications.

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2025-03-17 DOI: 10.3390/nano15060456

Ruixing Ge, Jiaji Wang, Junlong Piao, Zhenghua Pan, Zhehao Zhang, Yating Yang, Jin Huang, Zhiguo Liu

引用次数: 0

Preparation and Application of Hydrophobic and Breathable Carbon Nanocoils/Thermoplastic Polyurethane Flexible Strain Sensors.

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2025-03-17 DOI: 10.3390/nano15060457

Yanming Sun, Yanchen Huang, Xiaoying Lu, Hao Song, Guoping Wang

引用次数: 0

Merging of Accidental Bound States in the Continuum in Symmetry and Symmetry-Broken Terahertz Photonic Crystal Slabs.

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2025-03-16 DOI: 10.3390/nano15060451

Jiale Chen, Jianjun Liu, Fangzhou Shu, Yong Du, Zhi Hong

引用次数: 0

Fabrication of Conjugated Conducting Polymers by Chemical Vapor Deposition (CVD) Method.

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2025-03-16 DOI: 10.3390/nano15060452

Meysam Heydari Gharahcheshmeh

{"title":"Fabrication of Conjugated Conducting Polymers by Chemical Vapor Deposition (CVD) Method.","authors":"Meysam Heydari Gharahcheshmeh","doi":"10.3390/nano15060452","DOIUrl":"10.3390/nano15060452","url":null,"abstract":"Chemical vapor deposition (CVD) is a highly adaptable manufacturing technique used to fabricate high-quality thin films, making it essential across numerous industries. As materials fabrication processes progress, CVD has advanced to enable the precise deposition of both inorganic 2D materials, such as graphene and transition metal dichalcogenides, and high-quality polymeric thin films, offering excellent conformality and precise nanostructure control on a wide range of substrates. Conjugated conducting polymers have emerged as promising materials for next-generation electronic, optoelectronic, and energy storage devices due to their unique combination of electrical conductivity, optical transparency, ionic transport, and mechanical flexibility. Oxidative CVD (oCVD) involves the spontaneous reaction of oxidant and monomer vapors upon their adsorption onto the substrate surface, resulting in step-growth polymerization that commonly produces conducting or semiconducting polymer thin films. oCVD has gained significant attention for its ability to fabricate conjugated conducting polymers under vacuum conditions, allowing precise control over film thickness, doping levels, and nanostructure engineering. The low to moderate deposition temperature in the oCVD method enables the direct integration of conducting and semiconducting polymer thin films onto thermally sensitive substrates, including plants, paper, textiles, membranes, carbon fibers, and graphene. This review explores the fundamentals of the CVD process and vacuum-based manufacturing, while also highlighting recent advancements in the oCVD method for the fabrication of conjugated conducting and semiconducting polymer thin films.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"15 6","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11944385/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143730939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Development and Performance Study of Continuous Oil-Water Separation Device Based on Superhydrophobic/Oleophilic Mesh.

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2025-03-16 DOI: 10.3390/nano15060450

Tianxin Chen, Yue Wang, Jing Li, Liang Zhao, Xingyang Zhang, Jian He

{"title":"Development and Performance Study of Continuous Oil-Water Separation Device Based on Superhydrophobic/Oleophilic Mesh.","authors":"Tianxin Chen, Yue Wang, Jing Li, Liang Zhao, Xingyang Zhang, Jian He","doi":"10.3390/nano15060450","DOIUrl":"10.3390/nano15060450","url":null,"abstract":"Oil-water separation is an important method for treating oily wastewater and recovering oil resources. Based on the different affinities of superhydrophobic surfaces to water and oil, long-term oil-water separation devices with low-energy and high efficiency can be developed through the optimization of structure and process parameters. Superhydrophobic coatings were prepared on stainless-steel mesh surfaces using a spray method to construct single-channel oil-water separation equipment with superhydrophobic/oleophilic meshes, and the effects of structural and process parameters on separation efficiency were systematically investigated. Additionally, a multi-channel oil-water separation device was designed and fabricated to evaluate the feasibility and stability of long-term continuous operations. The optimized single V-shaped channel should be horizontally placed and made from 150-mesh stainless-steel mesh folded at an angle of 38.9°. For the oil-water mixtures containing 20 wt.% oil, the oil-water separation efficiencies for single and two-stage separation were 92.79% and 98.96%, respectively. After 36 h of continuous operation, the multi-channel separation device achieved single-stage and two-stage separation efficiencies of 94.60% and 98.76%, respectively. The maximum processing capacity of the multi-channel device reached 168 L/h. The modified stainless mesh can remain stable with a contact angle (CA) higher than 150° to water for 34 days. The average residence time and contact area during the oil-water separation process significantly affect separation efficiency. By optimizing oil-water separation structures and process parameters, and using a superhydrophobic spray modification method, separation efficiency can be improved while avoiding the generation of secondary pollutants.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"15 6","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11946090/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143730905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Robust Carbon Nanotube Transistor Ion Sensors with Near-Nernstian Sensitivity for Multi-Ion Detection in Neurological Diseases.

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2025-03-15 DOI: 10.3390/nano15060447

Lidan Yan, Yang Zhang, Zhibiao Zhu, Yuqi Liang, Mengmeng Xiao

{"title":"Robust Carbon Nanotube Transistor Ion Sensors with Near-Nernstian Sensitivity for Multi-Ion Detection in Neurological Diseases.","authors":"Lidan Yan, Yang Zhang, Zhibiao Zhu, Yuqi Liang, Mengmeng Xiao","doi":"10.3390/nano15060447","DOIUrl":"10.3390/nano15060447","url":null,"abstract":"Accurate monitoring of sodium and potassium ions in biological fluids is crucial for diseases related to electrolyte imbalance. Low-dimensional materials such as carbon nanotubes can be used to construct biochemical sensors based on high-performance field effect transistor (FET), but they face the problems of poor device consistency and difficulty in stable and reliable operation. In this work, we mass-produced carbon nanotube (CNT) floating-gate field-effect transistor devices with high uniformity and consistency through micro-/nanofabrication technology to improve the accuracy and reliability of detection without the need for statistical analysis based on machine learning. By introducing waterproof hafnium oxide gate dielectrics on the CNT FET channel, we not only effectively protect the channel area but also significantly improve the stability of the sensor. We have prepared array sensing technology based on CNT FET that can detect potassium, sodium, calcium, and hydrogen ions in artificial cerebrospinal fluid. The detection concentration range is 10 μM-100 mM and pH 3-pH 9, with a sensitivity close to the Nernst limit, and exhibits selective and long-term stable responses. This could help achieve early diagnosis and real-time monitoring of central nervous system diseases, highlighting the potential of this ion-sensing platform for highly sensitive and stable detection of various neurobiological markers.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"15 6","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11945060/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143730836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Mn²⁺-Doped CsPbBr₂I Quantum Dots Photosensitive Films for High-Performance Photodetectors.

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2025-03-15 DOI: 10.3390/nano15060444

Mengwei Chen, Wei Huang, Chenguang Shen, Yingping Yang, Jie Shen

{"title":"Mn2+-Doped CsPbBr2I Quantum Dots Photosensitive Films for High-Performance Photodetectors.","authors":"Mengwei Chen, Wei Huang, Chenguang Shen, Yingping Yang, Jie Shen","doi":"10.3390/nano15060444","DOIUrl":"10.3390/nano15060444","url":null,"abstract":"The variable bandgap and high absorption coefficient of all-inorganic halide perovskite quantum dots (QDs), particularly CsPbBr2I make them highly promising for photodetector applications. However, their high defect density and poor stability limit their performance. To overcome these problems, Mn2+-doped CsPbBr2I QDs with varying concentrations were synthesized via the one-pot method in this work. By replacing Pb2+ ions, moderate Mn2+ doping caused lattice contraction and improved crystallinity. At the same time, Mn2+-doping effectively passivated surface defects, reducing the defect density by 33%, and suppressed non-radiative recombination, thereby improving photoluminescence (PL) intensity and carrier mobility. The optimized Mn:CsPbBr2I QDs-based photodetector exhibited superior performance, with a dark current of 1.19 × 10-10 A, a photocurrent of 1.29 × 10-5 A, a responsivity (R) of 0.83 A/W, a specific detectivity (D*) of 3.91 × 1012 Jones, an on/off ratio up to 105, and the response time reduced to less than 10 ms, all outperforming undoped CsPbBr2I QDs devices. Stability tests demonstrated enhanced durability, retaining 80% of the initial photocurrent after 200 s of cycling (compared to 50% for undoped devices) and stable operation over 20 days. This work offers a workable strategy for rational doping and structural optimization in the construction of high-performance perovskite optoelectronic devices.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"15 6","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11945106/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143730317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Uniform Molecular Alignment on Ag-Doped Nickel Oxide Films.

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2025-03-15 DOI: 10.3390/nano15060449

Dong Wook Lee, Tae-Hyun Kim, Young Kwon Kim, Dae-Shik Seo

引用次数: 0

Graphene-Supported Cu_n (n = 5, 6) Clusters for CO₂ Reduction Catalysis.

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2025-03-15 DOI: 10.3390/nano15060445

Yanling Guo, Lisu Zhang, Yanbo Zou, Xingguo Wang, Qian Ning

{"title":"Graphene-Supported Cun (n = 5, 6) Clusters for CO2 Reduction Catalysis.","authors":"Yanling Guo, Lisu Zhang, Yanbo Zou, Xingguo Wang, Qian Ning","doi":"10.3390/nano15060445","DOIUrl":"10.3390/nano15060445","url":null,"abstract":"In recent years, driven by the swift progress in nanotechnology and catalytic science, researchers in the field of physical chemistry have been vigorously exploring novel catalysts designed to enhance the efficiency and selectivity of a broad spectrum of chemical reactions. Against this backdrop, Cu clusters supported on defective graphene (Cun@GR, where n = 5, 6) function as two-dimensional nanocatalysts, demonstrating exceptional catalytic activity in the electrochemical reduction of carbon dioxide (CO2RR). A comprehensive investigation into the catalytic properties of these materials has been undertaken using density functional theory (DFT) calculations. By tailoring the configuration of Cun@GR, specific reduction products such as CH4 and CH3OH can be selectively produced. The product selectivity is quantitatively analyzed through free energy calculations. Remarkably, the Cu5@GR catalyst enables the electrochemical reduction of CO2 to CH4 with a significantly low overpotential of -0.31 eV. Furthermore, the overpotential of the hydrogen evolution reaction (HER) is higher than that of the conversion of CO2 to CH4; hence, the HER is unlikely to interfere and impede the efficiency of CH4 production. This study demonstrates that Cu5@GR offers low overpotential and high catalytic efficiency, providing a theoretical foundation for the design and experimental synthesis of composite nanocatalysts.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"15 6","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11946459/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143730889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Theoretical Calculation and Experimental Studies of Boron Phosphide Polycrystalline Synthesized at High Pressure and High Temperature.

IF 4.4 3区材料科学

Nanomaterials Pub Date : 2025-03-15 DOI: 10.3390/nano15060446

Peng Yang, Ziwei Li, Haidong Yu, Shan Gao, Xiaopeng Jia, Hongan Ma, Xilian Jin

{"title":"Theoretical Calculation and Experimental Studies of Boron Phosphide Polycrystalline Synthesized at High Pressure and High Temperature.","authors":"Peng Yang, Ziwei Li, Haidong Yu, Shan Gao, Xiaopeng Jia, Hongan Ma, Xilian Jin","doi":"10.3390/nano15060446","DOIUrl":"10.3390/nano15060446","url":null,"abstract":"In this study, a combination of theoretical calculations and experiments were carried out to analyze boron phosphide materials. Amorphous boron powder and amorphous red phosphorus were used as raw materials to directly synthesize the target samples in one step under high-pressure and high-temperature (HPHT) conditions. Theoretical calculations were then carried out based on the XRD spectra of boron phosphide at 4 GPa and 1200 °C. The experimental results show that the target samples can be successfully prepared at HPHT. The electrical properties of the samples were characterized, and it was found that their conductivity increased with the increase in temperature, and they have a semiconducting nature, which is consistent with the theoretical calculations. Its Seebeck coefficient is positive at different temperatures, indicating that the synthesized boron phosphide is a P-type semiconductor. The combination of theoretical calculations and experiments shows that high pressure can reduce the lattice constant of boron phosphide, thus reducing its forbidden bandwidth, which improves its electrical properties. EDS shows a homogeneous distribution of the elements in the samples. Successful synthesis of BP crystals will probably stimulate more research into its semiconductor properties. It may also provide some assistance in the application of BP in aero-engine high-temperature monitoring systems as well as thermally controlled coatings for deep-space probes.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"15 6","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11944341/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143730937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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