Nanomaterials and Nanotechnology最新文献_第3页

First principles study of photogalvanic effect of monolayer SnS 单层SnS光电效应的第一性原理研究

IF 3.7 3区材料科学

Nanomaterials and Nanotechnology Pub Date : 2022-01-01 DOI: 10.1177/18479804221098299

Deyang Yu, Yangyang Hu, Ruiqi Ku, Guiling Zhang, Weiqi Li, YongYuan Jiang

引用次数: 1

Catalyst characterization Ni-Sn nanoparticles supported in Al2O3 and MgO: Acetophenone hydrogenation Al2O3和MgO负载的Ni-Sn纳米颗粒催化剂表征:苯乙酮加氢

IF 3.7 3区材料科学

Nanomaterials and Nanotechnology Pub Date : 2022-01-01 DOI: 10.1177/18479804221132128

Yasna León-Gutiérrez, G. Cárdenas-Triviño

引用次数: 0

Facile synthesis of novel SrO 0.5:MnO 0.5 bimetallic oxide nanostructure as a high-performance electrode material for supercapacitors 新型超级电容器用高性能电极材料SrO0.5:MnO0.5双金属氧化物纳米结构的简易合成

IF 3.7 3区材料科学

Nanomaterials and Nanotechnology Pub Date : 2022-01-01 DOI: 10.1177/18479804211064028

V. Adimule, V. Bhat, B. Yallur, Adarsha HJ Gowda, P. Padova, G. Hegde, A. Toghan

{"title":"Facile synthesis of novel SrO 0.5:MnO 0.5 bimetallic oxide nanostructure as a high-performance electrode material for supercapacitors","authors":"V. Adimule, V. Bhat, B. Yallur, Adarsha HJ Gowda, P. Padova, G. Hegde, A. Toghan","doi":"10.1177/18479804211064028","DOIUrl":"https://doi.org/10.1177/18479804211064028","url":null,"abstract":"Perovskite bimetallic oxides as electrode material blends can be an appropriate method to enhance the supercapacitor properties. In the present research, SrO 0.5:MnO 0.5 nanostructures (NS) were synthesized by a facile co-precipitation method and calcinated at 750–800°C. Crystal structure of SrO 0.5:MnO 0.5 NS were characterized by X-ray diffraction, surface chemical composition and chemical bond analysis, and dispersion of SrO into MnO was confirmed by X-ray photoelectron spectral studies. Structural morphology was analyzed from scanning electron microscopy. Optical properties of SrO 0.5:MnO 0.5 NS were studied using UV-Visible spectrophotometer and SrO 0.5 and MnO 0.5 NS showed ∼75 nm grain, ∼ 64 nm grain boundary distance, with two maxima at 261 nm and 345 nm as intensity of absorption patterns, respectively. The synthesized SrO 0.5:MnO 0.5 NS exhibited high specific capacitance of 392.8 F/g at a current density of 0.1 A/g. Electrochemical impedance spectroscopy results indicated low resistance and very low time constant of 0.2 s ∼73% of the capacitance was retained after 1000 galvanostatic charge-discharge (GCD) cycles. These findings indicate that SrO 0.5:MnO 0.5 bimetallic oxide material could be a promising electrode material for electrochemical energy storage systems.","PeriodicalId":19018,"journal":{"name":"Nanomaterials and Nanotechnology","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49411765","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: 8

Formation of oxide crystallites on the porous GaAs surface by electrochemical deposition 电化学沉积在多孔GaAs表面形成氧化物微晶

IF 3.7 3区材料科学

Nanomaterials and Nanotechnology Pub Date : 2022-01-01 DOI: 10.1177/18479804221127307

Y. Suchikova, S. Kovachov, I. Bohdanov

{"title":"Formation of oxide crystallites on the porous GaAs surface by electrochemical deposition","authors":"Y. Suchikova, S. Kovachov, I. Bohdanov","doi":"10.1177/18479804221127307","DOIUrl":"https://doi.org/10.1177/18479804221127307","url":null,"abstract":"We demonstrate how the formation of octahedral microcrystals of arsenic oxide As2O3 in the form of arsenolite with a size of 200 nm to 10 μm can be initiated by the electrochemical etching method with simultaneous deposition on the surface of substrates with n-GaAs (111). Crystallites were formed on a previously synthesized porous layer of GaAs. To explain the behavior of formation on the surface of the monocrystalline GaAs porous layer and As2O3 crystallites in the electrochemical reaction, we propose a qualitative model based on the decomposition of binary semiconductors in contact with electrolytes. Under this model, the crystallization of precipitated oxides occurs as a result of the transfer of ions to the crystal surface as a result of the electrolysis process. The formation of the composite structure takes place on the surface of the semiconductor and is characterized by the minimization of elastic energy. XRD analysis showed the formation of a complex compound of As2O3 and As0.172Sb0.570O1.113. The appearance of antimony is explained in terms of the formation of new centers when the As atom is replaced by an Sb doping atom in the crystal. Directed controlled oxidation technologies make it possible to synthesize a reliable passivating layer consisting of one type of oxide, namely As2O3 in the cubic phase of arsenolite. In addition, such structures can be used in photonics devices and as photocatalysts.","PeriodicalId":19018,"journal":{"name":"Nanomaterials and Nanotechnology","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47822107","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: 7

Antimicrobial, antioxidant, and angiogenic bioactive silver nanoparticles produced using Murraya paniculata (L.) jack leaves 使用Murraya paniculata（L.）jack leaves生产的抗菌、抗氧化和血管生成生物活性银纳米颗粒

IF 3.7 3区材料科学

Nanomaterials and Nanotechnology Pub Date : 2022-01-01 DOI: 10.1177/18479804211056167

Purushothaman Rama, A. Baldelli, A. Vignesh, A. Altemimi, G. Lakshmanan, R. Selvam, N. Arunagirinathan, K. Murugesan, Anubhav Pratap-Singh

{"title":"Antimicrobial, antioxidant, and angiogenic bioactive silver nanoparticles produced using Murraya paniculata (L.) jack leaves","authors":"Purushothaman Rama, A. Baldelli, A. Vignesh, A. Altemimi, G. Lakshmanan, R. Selvam, N. Arunagirinathan, K. Murugesan, Anubhav Pratap-Singh","doi":"10.1177/18479804211056167","DOIUrl":"https://doi.org/10.1177/18479804211056167","url":null,"abstract":"Murraya paniculata (MP) can be used as a reducing agent to produce silver nanoparticles (AgNPs) using a simple procedure. AgNPs are characterized in morphological and chemical properties, antioxidant activity, and cytotoxicity. The morphology of AgNPs derived from MP shows a face-centered cubic structure, spherical shape with an average particle size of 23 nm. The chemical structure shows characteristic peaks of AgNPs using UV-vis spectrometer at 438 nm. The formation of AgNPs is confirmed by analyzing their vibrational states under infrared radiation; typical peaks of AgNPs are recognized: at 3429 cm−1 (O-H stretch, H-bonded alcohols, phenols groups), 2923 cm−1 (C-H stretch alkanes), 1626 cm−1 (N-H bend 1° amines), 1583 cm−1 (C-C stretch in ring aromatic), 1039 cm−1 (C-N stretch aliphatic amines), 728 cm−1 (C-Cl stretch alkyl halides), and 589 cm−1 (C-Br stretch alkyl halides), respectively. AgNPs produced from MP show antioxidant activity and cytotoxicity. They show the highest sensitivity toward Bacillus cereus. Cytotoxicity of biosynthesized AgNPs, determined by scratch wound assay on in vitro human endothelial vein cell, created from MP showed dose-dependent activity. These AgNPs, at a concentration of 15.625 μg/mL, stimulate the proliferation and migration of endothelial cells (EC) showing an angiogenic activity.","PeriodicalId":19018,"journal":{"name":"Nanomaterials and Nanotechnology","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48926789","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: 14

Immunosensing the rheumatoid arthritis biomarker through bifunctional aldehyde-amine linkers on an iron oxide nanoparticle seeded voltammetry sensor 通过氧化铁纳米粒子种子伏安传感器上的双功能醛胺连接物免疫感应类风湿性关节炎生物标志物

IF 3.7 3区材料科学

Nanomaterials and Nanotechnology Pub Date : 2022-01-01 DOI: 10.1177/18479804221085103

Bowei Zhou, Yonglong Yan, Jingbo Xie, Hong-bo Huang, Heyun Wang, S. Gopinath, P. Anbu, Sanshan He, Lijun Zhang

{"title":"Immunosensing the rheumatoid arthritis biomarker through bifunctional aldehyde-amine linkers on an iron oxide nanoparticle seeded voltammetry sensor","authors":"Bowei Zhou, Yonglong Yan, Jingbo Xie, Hong-bo Huang, Heyun Wang, S. Gopinath, P. Anbu, Sanshan He, Lijun Zhang","doi":"10.1177/18479804221085103","DOIUrl":"https://doi.org/10.1177/18479804221085103","url":null,"abstract":"An immunosensor was developed on an interdigitated electrode (IDE) by voltammetry sensing for the early identification of the autoimmune disease ‘rheumatoid arthritis (RA)’ by detecting the biomarker anti-cyclic citrullinated peptide antibody (anti-CCP). Higher immobilization of cyclic citrullinated peptide (CCP) as a probe was achieved by using green synthesized iron oxide nanoparticles (IONPs). Field-emission scanning electron microscopy and field-emission transmission electron microscopy observations revealed that the polydispersed material displayed multifaceted features. X-ray photoelectron spectroscopy analysis confirms the occurrence of Fe, O, and C groups on the synthesized IONPs. IONPs were immobilized with a probe on IDE through bifunctional aldehyde-amine linkers. Due to the elevated occupancy of CCP and the highly efficient electric transfer from IONPs, higher changes in current are observed upon binding of anti-CCP with CCP. In the linear range from 8 to 250 pg/mL, the sensitivity and detection limit of anti-CCP were 8 and 15 pg/mL, respectively, with a regression coefficient of y = 1E−06x−3E−07; R2 = 0.9637. Control experiments with nonimmune antibody and anti-carcinoembryonic antigen indicate the specific detection of anti-CCP. Furthermore, spiking of anti-CCP in human serum does not interfere, representing the specific detection of anti-CCP. This CCP-immobilized IDE through IONP helps to quantify anti-CCP levels in the biological fluid for diagnosing RA.","PeriodicalId":19018,"journal":{"name":"Nanomaterials and Nanotechnology","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45762595","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: 4

Enhancing the optical performance of organic light-emitting diodes using nanoscale random rubbed structure 利用纳米尺度无规摩擦结构增强有机发光二极管的光学性能

IF 3.7 3区材料科学

Nanomaterials and Nanotechnology Pub Date : 2022-01-01 DOI: 10.1177/18479804221132983

Cheol-Ju Shin, Seungwon Lee, Kwang Wook Choi, Young Hyun Hwang, Y. Park, B. Ju

{"title":"Enhancing the optical performance of organic light-emitting diodes using nanoscale random rubbed structure","authors":"Cheol-Ju Shin, Seungwon Lee, Kwang Wook Choi, Young Hyun Hwang, Y. Park, B. Ju","doi":"10.1177/18479804221132983","DOIUrl":"https://doi.org/10.1177/18479804221132983","url":null,"abstract":"In this study, we evaluated a nanoscale random rubbed structure (nRRS) used as a scattering layer in organic light-emitting diodes (OLEDs) through an innovative manufacturing method. The rubbing technique, which is conventionally utilized only for liquid crystal alignment, is a manufacturing process with excellent merit in that it can form nanoscale random corrugation in a large area without vacuum equipment even at room temperature, and it is simple and inexpensive. The optimized nRRS, fabricated via rubbing, exhibited a high transmittance of 97.8% and haze of 17.8%, making it suitable as a scattering layer for OLEDs. Owing to its random nature, the scattering effect occurred effectively by rearranging the waveguided light inside the glass substrate. The OLED combined with the optimized nRRS showed a 25.4% improvement in the external quantum efficiency. Additionally, the spectral distortion according to the viewing angle was alleviated, which was confirmed by the negligible difference in the International Commission on Illumination 1931 color space coordinates (∆(x, y) = (0.01, 0.013)). The optical performance of the nRRS–OLED was predicted through a finite-difference time-domain simulation and verified by showing results consistent with those of the fabricated device. This research is expected to be widely applied in many optical devices because it is possible to form a random corrugation on the outside of the device without the difficulty of simply fabricating a beneficial optical structure.","PeriodicalId":19018,"journal":{"name":"Nanomaterials and Nanotechnology","volume":"12 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41476511","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

The role of CNT in surface defect passivation and UV emission intensification of ZnO nanoparticles 碳纳米管在ZnO纳米颗粒表面缺陷钝化和紫外发射增强中的作用

IF 3.7 3区材料科学

Nanomaterials and Nanotechnology Pub Date : 2022-01-01 DOI: 10.1177/18479804221079419

K. Nagpal, L. Rapenne, D. Wragg, E. Rauwel, P. Rauwel

引用次数: 6

Nanomaterials effects on induced magnetic field and double-diffusivity convection on peristaltic transport of Prandtl nanofluids in inclined asymmetric channel 纳米材料对感应磁场和双扩散对流的影响普朗特纳米流体在倾斜不对称通道中的蠕动传输

IF 3.7 3区材料科学

Nanomaterials and Nanotechnology Pub Date : 2022-01-01 DOI: 10.1177/18479804211048630

S. Akram, M. Athar, Khalid Saeed, Mir Yasir Umair

引用次数: 17

New insights into hydrophobicity at nanostructured surfaces: Experiments and computational models 纳米结构表面疏水性的新见解:实验和计算模型

IF 3.7 3区材料科学

Nanomaterials and Nanotechnology Pub Date : 2022-01-01 DOI: 10.1177/18479804211062316

J. Macko, N. Podrojková, R. Oriňaková, A. Oriňak

引用次数: 9