Journal of Nanotechnology最新文献_第10页

Development of Paint-Type Dye-Sensitized Solar Cell Using Carbon Nanotube Paint 碳纳米管涂料型染料敏化太阳能电池的研制

IF 4.2

Journal of Nanotechnology Pub Date : 2019-04-01 DOI: 10.1155/2019/5081034

Y. Matsunaga, T. Oya

引用次数: 3

Evaluation of the Efficiency of Interparticle Interactions in Nanosystems 纳米系统中粒子间相互作用效率的评价

IF 4.2

Journal of Nanotechnology Pub Date : 2019-04-01 DOI: 10.1155/2019/4270454

Hanna Demchenko, N. Rusinchuk

引用次数: 9

Design and Analysis of Nanoscaled Recessed-S/D SOI MOSFET-Based Pseudo-NMOS Inverter for Low-Power Electronics 低功耗电子用纳米嵌入式s /D SOI mosfet伪nmos逆变器设计与分析

IF 4.2

Journal of Nanotechnology Pub Date : 2019-03-28 DOI: 10.1155/2019/4935073

A. Priya, Nilesh Anand Srivastava, R. Mishra

{"title":"Design and Analysis of Nanoscaled Recessed-S/D SOI MOSFET-Based Pseudo-NMOS Inverter for Low-Power Electronics","authors":"A. Priya, Nilesh Anand Srivastava, R. Mishra","doi":"10.1155/2019/4935073","DOIUrl":"https://doi.org/10.1155/2019/4935073","url":null,"abstract":"In this paper, a comparative analysis of nanoscaled triple metal gate (TMG) recessed-source/drain (Re-S/D) fully depleted silicon-on-insulator (FD SOI) MOSFET has been presented for the design of the pseudo-NMOS inverter in the nanometer regime. For this, firstly, an analytical modeling of threshold voltage has been proposed in order to investigate the short channel immunity of the studied device and also verified against simulation results. In this structure, the novel concept of backchannel inversion has been utilized for the study of device performance. The threshold voltage has been analyzed by varying the parameters of the device like the ratio of metal gate length and the recessed-source/drain thickness for TMG Re-S/D SOI MOSFET. Drain-induced barrier lowering (DIBL) has also been explored in terms of recessed-source/drain thickness and the metal gate length ratio to examine short channel effects (SCEs). For the exact estimation of results, the comparison of the existing multimetal gate structures with TMG Re-S/D SOI MOSFET has also been taken under study in terms of electrostatic performance, i.e., threshold voltage, subthreshold slope, and on-off current ratio. These structures are investigated with the TCAD numerical simulator from Silvaco ATLAS. Furthermore, for the first time, TMG Re-S/D FD SOI MOSFET-based pseudo-NMOS inverter has been designed to observe the device performance at circuit levels. It has been found that the device offers high noise immunity with optimum switching characteristics, and the propagation delay of the studied circuit is recorded as 0.43 ps.","PeriodicalId":16378,"journal":{"name":"Journal of Nanotechnology","volume":"113 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2019-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80646611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Retracted: Green Synthesis of Silver Nanoparticles Using Polyalthia longifolia Leaf Extract along with D-Sorbitol: Study of Antibacterial Activity 撤稿:用长叶蓼叶提取物和d -山梨醇绿色合成纳米银:抗菌活性的研究

IF 4.2

Journal of Nanotechnology Pub Date : 2019-03-07 DOI: 10.1155/2019/1613475

引用次数: 1

Obtaining Silicon Oxide Nanoparticles Doped with Fluorine and Gold Particles by the Pulsed Plasma-Chemical Method 用脉冲等离子体化学方法获得掺杂氟和金颗粒的氧化硅纳米颗粒

IF 4.2

Journal of Nanotechnology Pub Date : 2019-03-07 DOI: 10.1155/2019/7062687

G. Kholodnaya, R. Sazonov, D. Ponomarev, I. Zhirkov

引用次数: 2

A Novel Methodology for Economical Scale-Up of TiO2 Nanotubes Fabricated on Ti and Ti Alloys 钛及钛合金制备TiO2纳米管的经济规模化新方法

IF 4.2

Journal of Nanotechnology Pub Date : 2019-03-03 DOI: 10.1155/2019/5902346

Juan Shong Khaw, M. Curioni, P. Skeldon, C. Bowen, S. Cartmell

{"title":"A Novel Methodology for Economical Scale-Up of TiO2 Nanotubes Fabricated on Ti and Ti Alloys","authors":"Juan Shong Khaw, M. Curioni, P. Skeldon, C. Bowen, S. Cartmell","doi":"10.1155/2019/5902346","DOIUrl":"https://doi.org/10.1155/2019/5902346","url":null,"abstract":"The prospective use of nanotechnology for medical devices is increasing. While the impact of material surface nanopatterning on the biological response is convincing, creating a large surface area with such nanotechnology remains an unmet challenge. In this paper, we describe, for the first time, a reproducible scale-up manufacturing technique for creating controlled nanotubes on the surfaces of Ti and Ti alloys. We describe an average of approximately 7.5-fold increase in cost and time efficiency with regards to the generation of 20, 50, and 100 nm diameter nanotubes using an anodisation technique. These novel materials have great potential in the medical field through their influence on cellular activity, in particular, protein absorption, focal adhesion, and osteoinduction. In this paper, we provide a step-by-step guide to optimise an anodisation system, starting with design rationale, proof of concept, device upscaling, consistency, and reproducibility check, followed by cost and efficiency analysis. We show that the optimised device can produce a high number of anodised specimens with customisable specimen shape at reduced cost and time, without compromising the repeatability and consistency. The device can fabricate highly uniform and vertically oriented TiO2 nanotube layer with desired pore diameters.","PeriodicalId":16378,"journal":{"name":"Journal of Nanotechnology","volume":"8 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2019-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75209155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Ablation of Hepatic Tumors through the Use of a Novel Magnetic Nanocomposite Probe: Magnetic Characterization and Finite Element Method Analysis 利用新型磁性纳米复合探针消融肝脏肿瘤:磁性表征和有限元方法分析

IF 4.2

Journal of Nanotechnology Pub Date : 2019-03-03 DOI: 10.1155/2019/6802125

Yvonne Konku, J. Kutor, A. Yaya, K. Kan-Dapaah

{"title":"Ablation of Hepatic Tumors through the Use of a Novel Magnetic Nanocomposite Probe: Magnetic Characterization and Finite Element Method Analysis","authors":"Yvonne Konku, J. Kutor, A. Yaya, K. Kan-Dapaah","doi":"10.1155/2019/6802125","DOIUrl":"https://doi.org/10.1155/2019/6802125","url":null,"abstract":"The authors recently proposed a novel system for thermoablation—based on nanoheating—that can potentially overcome limitations associated with previously reported techniques. The aim of this study was to evaluate the therapeutic performance of the system in the ablation of hepatic tissue, the most frequently ablated. A model nanocomposite system, maghemite nanoparticle-filled polydimethylsiloxane, was prepared, and its magnetic properties were studied as a function of nanoparticle concentration. On the basis of measured magnetic properties, a 3D finite element method (FEM) model was used to explore the development of temperature and thermal damage in nonperfused and fully perfused tissue using alternating magnetic field (AMF) parameters that are acceptable for human use. The FEM model was tested for its validity using an analytical model. The saturation magnetization increased to about 9% of the value of pure maghemite nanoparticles over the range of volume fraction (vol. %) between 1 and 5%. Lesion sizes were shown to be greatly affected by tissue perfusion and time. FEM predictions showed good agreement with results obtained with an analytical model to within 7%. Probes fabricated with magnetic nanocomposite can potentially be used to achieve reasonable lesion sizes in hepatic tissues using human-safe AMF parameters.","PeriodicalId":16378,"journal":{"name":"Journal of Nanotechnology","volume":"48 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2019-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86317149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Compatibilizer Polarity Parameters as Tools for Predicting Organoclay Dispersion in Polyolefin Nanocomposites 相容剂极性参数作为预测聚烯烃纳米复合材料中有机粘土分散的工具

IF 4.2

Journal of Nanotechnology Pub Date : 2019-03-03 DOI: 10.1155/2019/1404196

M. Weltrowski, P. Dolez

{"title":"Compatibilizer Polarity Parameters as Tools for Predicting Organoclay Dispersion in Polyolefin Nanocomposites","authors":"M. Weltrowski, P. Dolez","doi":"10.1155/2019/1404196","DOIUrl":"https://doi.org/10.1155/2019/1404196","url":null,"abstract":"Nanocomposites give an innovative method to increase the mechanical, thermal, and barrier performance of polymers. However, properly dispersing the nanoparticles in the polymer matrix is often key in achieving high performance, especially in the case of hydrophilic nanoparticles and hydrophobic polymers. For that purpose, nanoparticles may be functionalized with organic groups to increase their affinity with the polymer matrix. Compatibilizing agents may also be included in the nanocomposite formulation. This paper aims at identifying parameters relative to the compatibilizer polarity that would allow predicting nanoparticle dispersion in the polymer nanocomposite. The analysis used published data on nanocomposite samples combining clay nanoparticles, polyolefins, and various compatibilizing agents. We studied the correlations between the nanoclay exfoliation ratio and five different parameters describing the compatibilizer hydrophilic-lipophilic balance: the acid value, the mole, and weight fraction of polar groups, the number of polymer chain units per polar group, and the number of moles of polar groups per mole of compatibilizer. The best correlation was observed with the number of polymer chain units per polar group in the compatibilizer. This parameter could be used as a tool to predict the dispersion of organoclay nanoparticles in polyolefins. Another important result of the study is that, among the compatibilizers investigated, those with a low acid value provided a better nanoclay exfoliation compared to those with a high acid value. This may indicate the existence of a maximum in the nanoclay exfoliation/compatibilizer polarity curve, which would open new perspectives for nanocomposite performance optimization.","PeriodicalId":16378,"journal":{"name":"Journal of Nanotechnology","volume":"26 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2019-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79008703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Preparation and Characterization of Electrospun Gelatin Nanofibers for Use as Nonaqueous Electrolyte in Electric Double-Layer Capacitor 电纺丝明胶纳米纤维在电双层电容器中用作非水电解质的制备与表征

IF 4.2

Journal of Nanotechnology Pub Date : 2019-02-24 DOI: 10.1155/2019/2501039

Ditpon Kotatha, M. Hirata, Mayuko Ogino, S. Uchida, M. Ishikawa, T. Furuike, H. Tamura

{"title":"Preparation and Characterization of Electrospun Gelatin Nanofibers for Use as Nonaqueous Electrolyte in Electric Double-Layer Capacitor","authors":"Ditpon Kotatha, M. Hirata, Mayuko Ogino, S. Uchida, M. Ishikawa, T. Furuike, H. Tamura","doi":"10.1155/2019/2501039","DOIUrl":"https://doi.org/10.1155/2019/2501039","url":null,"abstract":"A novel nanofibrous gel electrolyte was prepared via gelatin electrospinning for use as a nonaqueous electrolyte in electric double-layer capacitors (EDLCs). An electrospinning technique with a 25 wt% gelatin solution was applied to produce gelatin electrospun (GES) nanofiber electrolytes. Structural analysis of the GES products showed a clearly nanofibrous structure with fiber diameters in the 306.2–428.4 nm range and exhibiting high thermal stability, high tensile strength, and a stable form of nanofibrous structure after immersion in 1-ethyl-3-methylimidazolium tetrafluoroborate (EMImBF4). After testing over a range of spinning times, GES electrolytes that were produced at 25 min (GES-25) had a suitable thickness for the assembly of EDLC with the optimized tensile properties and were used to fabricate EDLC test cells with EMImBF4. These test cells were compared to those with pure EMImBF4 and a separator as an electrolyte. The electrochemical properties of the test cells were characterized by charge-discharge testing, discharge capacitance, and alternative current (AC) impedance measurements. AC impedance measurements showed that the test cell with the GES-25/EMImBF4 gel electrolyte showed slightly poorer contact with the electrode when compared to that with pure EMImBF4, whereas exhibited comparable IR drop and discharge capacitance (calculated capacitance retention was 56.6%). The results demonstrated that this novel gel electrolyte can be used as a nonaqueous electrolyte in order to improve the safety in EDLCs.","PeriodicalId":16378,"journal":{"name":"Journal of Nanotechnology","volume":"22 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2019-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81968640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 19

Tunable Piezophotonic Effect on Core-Shell Nanoparticles Prepared by Laser Ablation in Liquids under External Voltage 外电压下液体激光烧蚀制备核壳纳米粒子的可调压电光子效应

IF 4.2

Journal of Nanotechnology Pub Date : 2019-02-11 DOI: 10.1155/2019/6046079

A. Kodeary, S. M. Hamidi

引用次数: 17