Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
A critical challenge in designing materials for tissue engineering (TE) is to provide essential cues that can control cellular behaviour and promote tissue regeneration. TE with fibrous scaffolds by using electrospinning is emerging as a major research area in the field of regenerative medicine. This thesis presents t…
INTRODUCTION Electron-beam-irradiated dl -α-Tocopherol (Vitamin E)-blended UHMWPE is now being considered as a potential new bearing surface material for hip prosthesis [1]. However, Vitamin E stabilizes some of the primary free-radicals required for crosslinking, thereby reducing the material9s crosslink density [2].…
The most frequently appearing form of DNA is a double helical structure in which two single strands are held together by Watson-Crick base pairs. In addition, guanine rich DNA sequences are known to adopt several unusual structures with G-quartet as a basic repeating motif. Recently large self-assembling nanostructure…
[Li x (Na0.52K0.48)1-x ]NbO3 (0 ≤x ≤0.091) ceramics were synthesized using hydrothermal powders and the lithium doping content was controlled to optimize their piezoelectric properties. The raw KNbO3 and NaNbO3 powders were obtained separately by a hydrothermal method and LiNbO3 powders were prepared by milling a comm…
Surface functionalized gold nanorods (GNRs) with three optical signals and the ability to track and observe live cells was investigated. The Cetyltrimethyl Ammonium Bromide (CTAB) was used as the shape-directing agent to develop GNRs with uniform size and aspect ratio. The as-synthesized GNRs can strongly enhance the…
Mass production of low-cost functional nanomaterials is an important issue for the development of nanoscience and nanotechnology. With rich structural, physical and chemical properties, polyoxometalates are important functional materials for both industrial applications and fundamental research. We presented a family…
Tetragonal-phased LiYF4:Yb3+/Er3+and LiYbF4:Yb3+/Er3+crystal particles with octagonal morphology are prepared by hydrothermal method and characterized with XRD and SEM. The up-conversion fluorescence was studied with spectroscopic method. The results showed that crystallization and particle size was adjusted by introd…
CuAlS2 Chalcopyrite nanocrystalline are synthesized with facile method. The heat arrested solvothermal method for synthesize nanocrystalline were investigated. The time duration of synthesis, temperature of solution and metal salts to solvent molar ratio can be parameters that we are studied. The nanoparticles were sy…
In this study, in order to develop lead-free composition ceramics for piezoelectric actuator and sensor applications, (Na0.54K0.46)0.96Li0.04(Nb0.90Ta0.10)1-2x/5ZnxO3(x= 0–1.5 mol %) composition ceramics were fabricated by a conventional sintering technique at 1110 °C for 5 h. The piezoelectric properties of resultant…
Polyhydroxyalkanoates (PHA) have attracted interest as bio-based, biodegradable biocompatible polymers. Researchers have accumulated a wide breadth of knowledge on the biosynthetic processes of these valuable polymers, with experts in the disciplines of microbiology, biochemistry, physics, medicine, and engineering co…
The effect of embedded capacitance material on the size reduction and filtering performance of electromagnetic band gap (EBG) structures etched on a power plane has been investigated. Due to the high permittivity of the embedded material the effective band shifts to much lower frequencies. The impact of these EBG stru…
The novel poly (AN-BA-DFMA) was prepared via semi-continuous seeded emulsion polymerization. The resultant novel latex is characterized with FTIR and DSC. The reaction conditions for preparing the novel latex are optimized and studied in detail. Results show that the novel latex with small particle size and good stabi…
Physical reasons of the existence of the nanosystem-size dependence of the potential energy of the neighboring atoms are considered, and a thermodynamic validation of this dependence is given. Solid nanofilms of monoatomic metallic systems having an fcc structure are simulated by the molecular-statics method with the…
Graphene is a promising candidate as a material used in nano-scale devices because of recent developments in advanced experimental techniques. Motivated by recent successful fabrications of U-shaped graphene channel transistors by using the gallium focused ion beam technology, we have performed ab-initio calculations…
Abstract The purpose of the present paper is to derive characterization theorem and radius of starlikeness for certain class of p-valent analytic functions. In connection with these results some more properties are discussed.
Experimental results on polymer laser ablation are considered using the regularities of gas dynamics and flow of viscous fluids. It is shown that a significant role in the ablation of polymers is played by destructive and thermochemical processes of modification of the molecular structure during irradiation, leading i…
A tradicional produção de açúcar, associada à crescente produção de etanol, faz da indústria sucroalcooleira um dos principais segmentos da economia brasileira. As indústrias brasileiras de açúcar e álcool processaram cerca de 630 milhões de toneladas de cana em 2009, gerando, aproximadamente, 142 milhões de toneladas…
The surface morphology and the Raman and photoluminescence spectra of a SiC/por-SiC/TiO 2 structure before and after rapid thermal annealing are studied. It is shown that rapid thermal annealing brings about the appearance of new bands in the Raman spectrum; these bands are characteristic of carbon compounds. An analy…
Para avaliação da degradação acelerada em laboratório sofrida pelos corpos de prova de cerâmica vermelha com adição de rejeito de rocha ornamental isento de granalha, foi utilizado um equipamento que lixivia com água quente e fria em tempos controlados, e também, congela a amostra em até -4 ºC. Os corpos de prova cerâ…
A new class of quaternary I-III-IV2-V4, including CuAlGe2P4, CuGaGe2P4, CuAlSn2P4, and CuGaSn2P4 are studied by density functional theory and beyond for potential photovoltaic application. We found that CuAlGe2P4 and CuGaGe2P4 have a ground state of kesterite (KS) structure, while CuAlSn2P4 and CuGaSn2P4 are nearly en…