Materials Literature
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A new sensitive, simple and rapid method for determination of methotrexate (MTX) was developed based on quenching effects of MTX on the fluorescence intensity of Tb(3+)-1,10-phenanthroline complex. The fluorescence intensity was measured with excitation wavelength of 300 nm and emission wavelength of 545 nm and the qu…
In this paper, we show how the method of field theoretical renormalization group may be used to analyze universal shape properties of long polymer chains in porous environment. So far such analytical calculations were primarily focussed on the scaling exponents that govern conformational properties of polymer macromol…
A new cardenolide diglycoside (1) was isolated from Nerium oleander together with ten known cardenolide diglycosides 2-11. The structure of compound 1 was established on the basis of their spectroscopic data. The in vitro anti-inflammatory activity of compounds 1-11 was examined on the basis of inhibitory activity aga…
Considering a clothing system consists of the human body, an air gap layer under the clothing as well as a fabric layer and boundary layer adjacent to the fabric, heat transfer from the skin to the environment is influenced by human body thermoregulation, the air gap, the fabric and environmental conditions. Based on…
Poly(3,4-ethylenedioxythiophene) (PEDOT) and its derivatives are widely used in electrochemical and photoelectric applications. In this paper, three compounds of the 3,4-alkylenedioxythiophene family i.e. PEDOT and two derivatives, poly(3,4-propylenedioxythiophene) (PProDOT), and poly(3,3-dibenzyl-3,4-propylenedioxyth…
For (Y 1−x Gd x ) 3 Al 5 O 12 :Ce and Y 3 Al 5−2y (Mg,Si) y O 12 :Ce phosphors prepared by spray pyrolysis, the luminescence properties were compared with commercial YAG:Ce. When x = 0.2 and y = 0.4, the emission wavelength of each phosphor was same to the commercial YAG:Ce. In terms of realizing warm-white LEDs, the…
Nanocrystalline hexaaluminate-type mixed oxides having crystallite sizes of around 20 nm and high surface areas (>77 m2 g−1) were synthesized using an original mechanosynthesis technique. These nanocrystalline materials were evidenced to be highly active heterogeneous catalysts compared to the conventional parent mate…
Polyvinyl alcohol (PVOH) based coatings entrapping either living bacteriocin-producer Enterococcus casseliflavusIM 416K1 bacteria or Enterocin 416K1 have been prepared and applied to poly(ethylene terephthalate) (PET) films. The antimicrobial activity of coated PET films was evaluated against Listeria monocytogenes NC…
Controlling the heating rate during calcination and cooling rate during sintering, pure columbite like phase of SrNb2O6 is synthesized. By optimizing the sintering temperature, ceramic with density (>92%) is achieved for material calcined at 11250C and sintered at 12000C. The ceramic shows orthorhombic structure with…
The present study aims to develop zirconia-Silica sand nanoparticles composites through powder processing route and to study the physical properties, mechanical properties and microstructure of the composites. Zirconia based silica sand nanoparticles composite with 5, 10, 15 and 20 wt.% were developed through powder p…
The electric field-induced electromechanical properties of strontium-modified lead zirconate titanate (PSZT) ceramics, at the Zr-rich region of the phase diagram, are investigated by a dynamic in situ x-ray diffraction technique. PSZT compositions with different Zr/Ti ratios are prepared using a tape lamination approa…
Doping of TiO 2 – a wide band gap material - with Neodymium (Nd 3+ ) ions have been the focus of research interest for the solar spectrum downshifting, a process which can improve the efficiency of silicon based solar cells. This work presents the influence of varying Nd doping concentration in the range 1.17-25 at.%…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Dimitri Soteropoulos, Konstantine Fetfatsidis, James A. Sherwood, Joanna Langworthy; Digital Meth…
The texture characteristics of aluminum hydroxides peptized by organic acids and then calcined were studied. A decrease in the pore volume and pore diameter for aluminum hydroxide was studied as a function of the amount of a peptizer. The calcination causes basic aluminum salts obtained by peptization to decompose at…
Poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) fibrous membranes consisting of parallel-aligned fibers or cross-aligned fibers were fabricated through electrospinning with the help of a rotating cylinder as fiber collector and auxiliary electrodes, and their application as tissue-engineering scaffolds was assessed. F…
The first-principles calculations in LDA approach were performed for Sn2P2S6 ferroelectrics. The evolution of energy band structure and charge density distribution clearly illustrate the stereoactivity of the tin atoms lone pair electrons and their leading role in the phase transition nature which is described by thre…
An electrochemically controlled surface plasmon resonance (SPR) immunosensor for the detection of human immunoglobulin G (IgG) has been developed using poly(pyrrole-3-carboxylic acid) (PP3C) film. In this work, a pyrrole-3-carboxylic acid monomer was used for electropolymerization of a PP3C film on a gold-coated high-…
The reactions of copper(II) ions with azido ligands in the presence of different chelating amine ligands gave three one dimensional copper-azido molecular tapes, [Cu2(N-Pren)(N3)4]n (1), [Cu2(N-Buen)(N3)4]n (2) and [Cu3(tren)(N3)6]n (3) [N-Pren = N-propylethylenediamine; N-Buen = N-butylethylenediamine; tren = tris(2-…
An unprecedented "molecular wire" type of structure for the copper(I) carboxylate family has been synthesized by utilizing copper-copper interactions and controllable switch of copper-oxygen interactions. Several modifications of the same complex, copper(I) 2,4,6-triisopropylbenzoate, have been isolated to allow evalu…
New thermoplastic poly(carbonate-urethane) elastomers Two series of novel thermoplastic poly(carbonate-urethane) elastomers, with different hard-segment content (30 - 60 wt %), were synthesized by melt polymerization from poly(hexane-1,6-diyl carbonate) diol of M n = 2000 as a soft segment, 4,4'-diphenylmethane diisoc…