Materials Literature
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Gelatin from the skin of Thai panga fish (Pangasius bocourti Sauvage) was pretreated with a solution of 0.8 M sodium chloride and 0.1 M sodium hydroxide and extracted by acetic acid solution pH 4.55 at 55°C for 1 h. Physical properties of the obtained fish gelatin and the commercial bovine bone gelatin were compared.…
Perovskites belong to one of the largest oxide families. The interesting physical properties and important applications have been widely investigated in this system since the last century. Among the large perovskite family, one of the most important groups is the ferroelectric oxide, which possesses extremely high val…
In this paper, we present the effect of different catalysts (Mn, Au and Sn) on the room temperature photoluminescence and Raman spectra of VLS grown ZnS nanostructures. The catalysts found to self-dope the ZnS nanostructures during its growth were confirmed by XRD and XPS results. The extent of self-doping, which depe…
The main aim of this work is to develop a one-step method for the characterization of mixtures of single- and multi-walled carbon nanotubes using a simple and inexpensive tool, a portable Raman spectrometer. In order to overcome the problem of heat dissipation in solid samples, the suitability of three surfactants-SDS…
The improvement of analytical accuracy and S/N (signal to noise ratio) based on conventional homogeneous fluorometry was always limited because of high background noise from complicated sample ingredients, buffer solution and lysates. Herein, a self-assembled Mn-doped ZnSe quantum dot–methyl viologen nanohybrid as an…
The need for biocompatible, low impedance abio-to-bio interfaces suitable for implantable bioactive devices has led us to develop electroconductive hydrogels. Conductive electroactive polymers (CEPs) are one dimensional organic semiconductors synthesized from aromatic monomers into extended pi-conjugated polymers. The…
The application of a mixed ionic and electronic conductor, doped CeO2, as a dense anode was investigated in this study. The mixed electronic and oxide ionic conductivity in CeO2 was significantly improved through the double doping of Mn and Fe. Although the solid solubility limit of Mn was approximately 20 mol%, no im…
The wet chemical etching of InP and its native oxide has been studied in HCl and H 2 SO 4 solution to create oxide-free surfaces.The (100) InP surface is not etched in ≤2 M HCl and ≤6 M H 2 SO 4 .As the v etch <0.1 nm/min for these concentrations, the native oxide after OFOD treatment can be effectively removed withou…
Metal–organic gels (MOGs) are evolving as a new class of stimuli-responsive materials. A redox-active MOG comprised of a ferric ion and benzene tricarboxylic acid ligand was prepared and characterized. In situ incorporation (without the use of any extraneous oxidant) of conducting polypyrrole and polythiophene moietie…
This study presents the effect of carbon to nitrogen ratio (C/N) (mol/mol) on the cell growth and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) accumulation by Comamonas sp. EB172 in 2 L fermenters using volatile fatty acids (VFA) as the carbon source. This VFA was supplemented with ammonium sulphate and yeast extract…
In this paper, high density polyethylene (HDPE)/wood flour (WF) composite foams were prepared by using an intermeshing co-rotating twin screw extruder followed by an injection molding. Experimental design based on Taguchi method was applied to investigate the effects of "concentrations and types of chemical foaming ag…
High quality graphene is synthesized by pyrolysis of poly (acrylic acid) sodium salt, a novel catalyst-free cost-effective process. A strong Raman signature at 2698 cm−1 and a small defect (D) band (D/G ratio) confirm the high quality of the synthesized material. Analysis of the Raman parameters implies that it is a 1…
Crystallization following Ostwald's step rule is given theoretical consideration on the basis of the classical nucleation and growth theory. Conditions for homogeneous 3D nucleation of the thermodynamically metastable crystal, for that of the stable crystal, and for co-precipitation of them are derived from comparison…
The isothermally crystallized poly(L-lactide) (PLLA) samples were obtained at 135 °C under pressures (Pc) ranging from 1 bar to 2.5 kbar. The crystalline structures, the structure transition, and thermal properties of the prepared samples were investigated by wide-angle X-ray diffraction (WAXD), real time synchrotron…
Corrosion behaviour of cast iron and low alloy steel in cocoa liquor and well water was investigated. The average weight losses of the specimens were measured using digital weighing balance. The results showed that the weight losses of both cast iron and low alloy steel in both media increases with time. Corrosion rat…
We report here X-ray, electrical switching and dielectric measurements on a binary system comprising achiral bent-core and chiral rod-like components. While the pure bent-core compound exhibits a single mesophase, namely the B2 phase, the rod-like compound shows smectic A and smectic C* mesophases. A particular mixtur…
A carbon-nanotube (CNT)/silver/polymer composite fiber was fabricated using carbon nanotube fiber (CNTF) to infiltrate silver-paste liquid for effective reinforcement of electrical conductivity and strength of the CNT fibers. The as-obtained composite fiber is still flexible with a content of 43 wt% CNTs. Scanning ele…
The effects of the solution-annealing temperature on the precipitation of secondary phases and the associated pitting corrosion resistance in hyper duplex stainless steel after aging at 1123 K were investigated in a highly concentrated chloride solution. Increasing the solution annealing temperature from 1333 to 1413…
Zinc oxide (ZnO)/titanium dioxide (TiO 2 ) nanorods have been synthesized via a hydrothermal method for ZnO nanorods and an electron-beam deposition for TiO 2 nanorods. This work examined the effect of annealing ZnO seed layer on the photocatalytic activity of the ZnO/TiO 2 nanorods which was determined from photodeco…
The new tetradentate ligand H2L bis(5-(pyridine-2-yl)-1,2,4-triazol-3-yl)methane ligand H2L has been used to prepare corresponding Ln(III) complexes [Ln(L)(HL)H2O]·6H2O where Ln(III) is Tb(III), Sm(III), Eu(III), Gd(III), Nd(III). The resulting complexes were investigated by various means including elemental- and ther…