Journal of Applied Biomaterials & Functional Materials最新文献_第8页

Effect of Agitation Methods on Characteristics of Iron Ferrite Nanoparticles Synthesized by Co-Precipitation Process 搅拌方式对共沉淀法合成铁酸铁纳米颗粒特性的影响

IF 2.5 4区医学

Journal of Applied Biomaterials & Functional Materials Pub Date : 2022-09-30 DOI: 10.35745/afm2022v02.03.0005

H. R. Dehghanpour, P. Parvin, A. Younesi, Monireh Gilaki

{"title":"Effect of Agitation Methods on Characteristics of Iron Ferrite Nanoparticles Synthesized by Co-Precipitation Process","authors":"H. R. Dehghanpour, P. Parvin, A. Younesi, Monireh Gilaki","doi":"10.35745/afm2022v02.03.0005","DOIUrl":"https://doi.org/10.35745/afm2022v02.03.0005","url":null,"abstract":"To assess the result of the stirring process on the Fe3O4 nanoparticles' properties, two types of stirrings (mechanical and magnetic) were compared. Fe3O4 nanoparticles were generated by chemical precipitation. Oleic acid covered the nanoparticles as a surfactant performer. X-ray diffraction (XRD) was used to investigate the fine grains sample, and scanning electron microscope (SEM) images were used for observing the nanoparticles’ geometry. The vibrating sample magnetometer (VSM) was also used to examine the magnetic characteristic of the nanoparticles. Chemical bonds were determined by using Fourier transform infrared spectroscopy (FTIR). As a result, the hysteresis loop characterized the magnetic nanoparticles. Magnetite nanoparticles are regarded as a soft magnetic material due to their low coercivity. XRD diagrams show the presence of powerful peaks in the orientations of crystal surfaces of the spinel form of the nanoparticles. The result showed that nanoparticles were nearly spherical. The average dimensions of the nanoparticles were estimated by Scherrer approximation. The mean particle dimensions were 11 nm (chemical mixer) and 13 nm (magnet mixer). SEM images verified the spherical shape of the nanoparticles, and FTIR confirmed the constitution of Fe-O bonds and validated the spinel ferrites configuration.","PeriodicalId":14985,"journal":{"name":"Journal of Applied Biomaterials & Functional Materials","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84474353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Temperature-dependent Photoluminescence Properties of Eu2+-doped CaMgSi2O6 Phosphors Eu2+掺杂CaMgSi2O6荧光粉的温度依赖性光致发光特性

IF 2.5 4区医学

Journal of Applied Biomaterials & Functional Materials Pub Date : 2022-09-30 DOI: 10.35745/afm2022v02.03.0004

T. Wu, Guoxiang Peng, Wei-Ren Zhang, Cheng-Fu Yang

{"title":"Temperature-dependent Photoluminescence Properties of Eu2+-doped CaMgSi2O6 Phosphors","authors":"T. Wu, Guoxiang Peng, Wei-Ren Zhang, Cheng-Fu Yang","doi":"10.35745/afm2022v02.03.0004","DOIUrl":"https://doi.org/10.35745/afm2022v02.03.0004","url":null,"abstract":"The solid-state reaction method was used to synthesize 0.025Eu2+-doped CaMgSi2O6 (Eu-CaMgSi2O6) powder in the reduction atmosphere of 5% H2 + 95% N2 at 1300oC with a duration of 4 h. The reduction atmosphere was removed when the temperature was down to 800oC. The XRD pattern showed that only the CaMgSi2O6 phase was observed in synthesized 0.025Eu2+-doped CaMgSi2O6 powder. Room-temperature photoluminescence excitation (PLE) and photoluminescence (PL) spectra of Eu-CaMgSi2O6 phosphors were recorded by using the Hitachi F-4500 fluorescence spectrophotometer at wavelength ranges of 200–430 and 350–600 nm, respectively. A new important finding is that the synthesized Eu-CaMgSi2O6 phosphor has three important PLE wavelengths. Therefore, Eu-CaMgSi2O6 phosphors are measured from 25oC (room temperature) to 200oC under three different PLE wavelengths to find the effect of temperature on the variations of maximum photoluminescence intensities (PLmax). All the PL spectra show that only one emission band with a central wavelength of 449 nm is found, which is independent of the PLE wavelengths and is caused by the transition of 4f7 → 4f65d1. Another important finding is that the different PLE wavelengths have an apparent effect on the PLmax value of the Eu-CaMgSi2O6 phosphor. Finally, the decay-time curves of Eu-CaMgSi2O6 phosphor under three PLE wavelengths are also investigated.","PeriodicalId":14985,"journal":{"name":"Journal of Applied Biomaterials & Functional Materials","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88932719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Study on Preparing β-Ga2O3 Films with Temperature-Controlled Buffer Layer by RF Magnetron Sputtering 射频磁控溅射制备具有温控缓冲层的β-Ga2O3薄膜的研究

IF 2.5 4区医学

Journal of Applied Biomaterials & Functional Materials Pub Date : 2022-09-30 DOI: 10.35745/afm2022v02.03.0003

Yi Liu, T. He, Sufen Wei

引用次数: 0

Nanostructuring Polyaniline Using Non-Substituted Imidazolium-Based Ionic liquid as Polymerization Medium Enabling Faster Supercapacitor Operation 以非取代咪唑基离子液体为聚合介质制备纳米聚苯胺，使超级电容器运行速度更快

IF 2.5 4区医学

Journal of Applied Biomaterials & Functional Materials Pub Date : 2022-09-30 DOI: 10.35745/afm2022v02.03.0001

Fatima Al Zohbi, F. Ghamouss, B. Schmaltz, M. Abarbri, K. Cherry, Mohamad fadel Tabcheh, F. Tran Van

{"title":"Nanostructuring Polyaniline Using Non-Substituted Imidazolium-Based Ionic liquid as Polymerization Medium Enabling Faster Supercapacitor Operation","authors":"Fatima Al Zohbi, F. Ghamouss, B. Schmaltz, M. Abarbri, K. Cherry, Mohamad fadel Tabcheh, F. Tran Van","doi":"10.35745/afm2022v02.03.0001","DOIUrl":"https://doi.org/10.35745/afm2022v02.03.0001","url":null,"abstract":"Non-substituted imidazolium-based protic ionic liquid, namely imidazolium hydrogen sulfate [Imi][HSO4], has been investigated as a polymerization medium for PANI (designated as PANI/PIL). The resulting material was then investigated as electrode materials for supercapacitors. [Imi][HSO4] was prepared via a one-step acid-base reaction, and its structure was confirmed by 1H NMR. [Imi][HSO4] displayed full miscibility with water owing to the charge density distribution of its ions. Furthermore, the binary mixture [Imi][HSO4]/water is highly acid (e.g. pH ~ 0.1 for [Imi][HSO4]/water in a weight ratio of 70/30). As the polymerization medium for PANI/PIL, [Imi][HSO4] plays the role of a soft template agent and induces nanostructured PANI formation with fibrillar morphology (as shown by SEM images) without affecting the typical structure of PANI (as confirmed by FT-IR analysis). Furthermore, PANI/PIL was obtained in emeraldine salt form without any undesirable byproduct. Moreover, the electrical conductivity was seven times superior to that of the conventional PANI (i.e. PANI/HCl) when measured by the four-probe technique of PANI/PIL (~ 21.8 S/cm). This improvement in the PANI/PIL’s electrical conductivity of as well as the fibrillar morphology of PANI/PIL positively influences its electrochemical performances and highlights the suitability of [Imi][HSO4] as a polymerization medium for PANI material.","PeriodicalId":14985,"journal":{"name":"Journal of Applied Biomaterials & Functional Materials","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87269246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Clinical Significance of Accurate Transfer of Provisional Resin-Based to Permanent Lithium Disilicate Glass Ceramic Dental Restorations 临时树脂基到永久二硅酸锂玻璃陶瓷牙体准确转移的临床意义

IF 2.5 4区医学

Journal of Applied Biomaterials & Functional Materials Pub Date : 2022-09-30 DOI: 10.35745/afm2022v02.03.0002

Evangelos Ximinis, Maria Tsiafitsa, O. Naka, D. Dionysopoulos

{"title":"Clinical Significance of Accurate Transfer of Provisional Resin-Based to Permanent Lithium Disilicate Glass Ceramic Dental Restorations","authors":"Evangelos Ximinis, Maria Tsiafitsa, O. Naka, D. Dionysopoulos","doi":"10.35745/afm2022v02.03.0002","DOIUrl":"https://doi.org/10.35745/afm2022v02.03.0002","url":null,"abstract":"Smile reconstruction is, yet, a challenging procedure for dental practitioners. A stable and satisfactory aesthetic result demands a meticulous procedure, which involves many clinical and laboratory steps. The purpose of this article is to present a case of aesthetic reconstruction in the anterior region with a successful 14-year recall. A 40-year-old female patient came to the dental clinic complaining about her smile appearance. Lithium disilicate glass-ceramic full-coverage restorations for the six upper anterior teeth were the selected treatment plan for this case. The key to this successful result was the used therapeutic methodology, where the characteristics of the provisional restorations were copied to the final restorations. In this article, the therapeutic methodology is presented step by step and all the clinical and laboratory steps are explained thoroughly. The patient has visited the dental clinic annually as arecall visit. The final result from the 14-year recall visit revealed that the aesthetic result was stable, the restorations were intact and there were no signs of gingival infection or dental decay. Consequently, the presented therapeutic methodology leads to a successful and long-term result.","PeriodicalId":14985,"journal":{"name":"Journal of Applied Biomaterials & Functional Materials","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86663065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel Schiff Base Co(II) Complexes: Potential Biological Applications 新型希夫碱Co(II)配合物:潜在的生物学应用

IF 2.5 4区医学

Journal of Applied Biomaterials & Functional Materials Pub Date : 2022-09-30 DOI: 10.35745/afm2022v02.03.0006

Arumugam Parasuraman Arumugam, Govindan Elango, S. Guhanathan

引用次数: 0

Photovoltaic Performance of CH3NH3PbI2Cl Perovskite Solar Cell CH3NH3PbI2Cl钙钛矿太阳能电池的光伏性能

IF 2.5 4区医学

Journal of Applied Biomaterials & Functional Materials Pub Date : 2022-06-30 DOI: 10.35745/afm2022v02.02.0003

Yi-Tzu Tseng, Y. Tseng, C. Wu

引用次数: 0

Electromechanical Property Calculation of Carbon Nanotubes Using Linear Augmented Cylindrical Wave Method 线性增广柱面波法计算碳纳米管机电性能

IF 2.5 4区医学

Journal of Applied Biomaterials & Functional Materials Pub Date : 2022-06-30 DOI: 10.35745/afm2022v02.02.0006

P. D’yachkov

{"title":"Electromechanical Property Calculation of Carbon Nanotubes Using Linear Augmented Cylindrical Wave Method","authors":"P. D’yachkov","doi":"10.35745/afm2022v02.02.0006","DOIUrl":"https://doi.org/10.35745/afm2022v02.02.0006","url":null,"abstract":"Deformations of single-walled carbon nanotubes (SWNTs) change their band structure in the nanoelectromechanical systems. In this study, we investigated the response of the electronic structure of chiral and nonchiral SWNTs (8,7), (9,6), (10,5), (7,7), (11,0), (12,0), and (13,0) to twisting and axial tension modes by using the symmetrized linear augmented cylindrical wave technique. We showed that perturbations of the band structures depend on a “family” index p = (n1 − n2)mod 3 (where p = −1, 0 or 1). Twisting the semiconducting (8,7) tubule with p = 1 in the direction of the screw axis is accompanied by the large broadening of minimum gap E11 and narrowing of the second gap E22, while these gaps drastically change in the tubule (10,5) with p = −1. In these tubules, changing the direction of twisting leads to the reversal in direction of the gap shifts. Regardless of the twisting direction, in metallic (7,7) and quasi-metallic (9,6) SWNTs with p = 0, the E11 gap rapidly increases from 0.0 and 0.035 eV to about 1 eV. When twisting the zigzag tubules (13,0) p = 1 and (11,0) p = −1, the gaps E11 equal to about 0.8 eV increase and decrease by several hundredths of eV. On the contrary, the compression and extension of these tubules cause a sharp change in their band structure with approximately a twofold change in the gaps E11 and E22 and inversion in the sequence of the boundary bands. The similar deformation of the armchair nanotube (7,7) has practically no effect on its electronic levels. In the case of zigzag (12,0) p = 0 SWNT, all deformation modes transform the quasi-metallic tubule into the semiconductor.","PeriodicalId":14985,"journal":{"name":"Journal of Applied Biomaterials & Functional Materials","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85782763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Modeling of Optical Characteristics of Silver Nanoparticles—Water Suspension Subject to Electromagnetic Irradiation 纳米银粒子的光学特性建模——电磁辐照下的水悬浮液

IF 2.5 4区医学

Journal of Applied Biomaterials & Functional Materials Pub Date : 2022-06-30 DOI: 10.35745/afm2022v02.02.0004

H. R. Dehghanpour

引用次数: 0

Analogy among Center of Gravity, Center of Mass, and Centroid of Rigid body: Analysis of Formula for Their Respective Calculation as per Configuration of Body and Utilization in Composite Application 刚体重心、质心、质心的类比:按体形各自计算公式分析及在复合应用中的应用

IF 2.5 4区医学

Journal of Applied Biomaterials & Functional Materials Pub Date : 2022-06-30 DOI: 10.35745/afm2022v02.02.0002

Saransh Tiwari, Sudhaker Dixit, Ved Kumar, A. Rastogi

引用次数: 1