Materials Literature
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AZ31 Mg alloy was anodized with a pulse potential between the transpassive (10 V Ag/AgCl ) and active regions (−1.35 V Ag/AgCl ) in 2 M NaOH aqueous solution at 303 K. Optimal conditions for the pulse anodizing were a duty ratio of 91%, a frequency of 0.09 Hz, and an anodizing time of 600 s. Pulse anodizing caused a r…
Ethylenediaminetetraacetic acid (EDTA) is a chelating agent that has been used for decontamination purposes in nuclear industry. The presence of EDTA in decontamination wastes can cause complexation of the cations resulting into interferences in their removal by various treatment processes such as chemical precipitati…
While research efforts are invested in promoting and sustaining dropwise condensation, various physical challenges continue to present themselves as hurdles. Microelectromechanical systems−based fabrication techniques have allowed us to develop superhydrophobic surfaces that demonstrate the lotus leaf effect, with the…
To study magnetic microspheres of mesalamine (5-aminosalicylic acid) for colon drug delivery. Magnetic microspheres were prepared by solvent evaporation technique for use in the application of magnetic carrier technology. An attempt was made to target mesalamine (5-aminosalicylic acid) to its site of action i.e. to co…
A series of new poly(ester-ether-imide)s (PEEIs) with potential low and high temperature application as elastomers were obtained by melting polycondensation of 1,4-butanediol (BD), dimethyl terephthalate (DMT), poly(tetramethylene glycol) (PTMG1000) and imide dihydric alcohol based on pyromellitic dianhydride (PMDA) a…
The amorphous MnO2 thin films were prepared by simple and inexpensive successive ionic layer adsorption and reaction (SILAR) method. The prepared thin films were characterized by means of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). The electrochemica…
Ceria based electrolyte materials are very useful in intermediate-temperature solid oxide fuel cell (IT-SOFC). The compositions Ce0.85Gd0.15 - xCaxO2 - δ (x = 0.0 - 0.075) were prepared through sol-gel method. Their structure was studied by X-ray diffraction. Dense ceramic Ce0.85Gd0.15 - xCaxO2 - δ samples were prepar…
Phosphotungstic acid (HPW)-impregnated yeast hybrid microspheres were prepared by impregnation-adsorption technique through tuning pH of the aqueous yeast suspensions. The obtained products were characterized by field emission scanning electron microscopy (FE-SEM), energy dispersive spectrometry (EDS), X-ray diffracti…
Hydrophobic coatings formed on a polyester fabric by treatment with telomeric solutions prepared by a radiation-chemical procedure in acetone and butyl chloride were studied by IR spectroscopy (MATIR), energy-dispersive analysis, and atomic force microscopy. The hydrophobic properties of the textile material were eval…
In this paper, authors propose a new method to fabricate metal nanodot array on a plastic film. This process comprises three steps; firstly, a substrate is deposited with metal. Then, a nanodot array is formed on the substrate surface by thermal dewetting. Finally, the nanodot array is transferred to a plastic film. U…
Porphyrin covalently bonded to graphene oxide (Por–GO) was used as a photoactive unit, and resulted in an enhanced photoresponse, when in combination with gold nanoparticles (GNP) as a light harvesting unit, due to its plasmon resonance absorption effect. Photocurrent monitoring of the interaction between the surface-…
A number of publications containing structural data, characteristics of nonlinear optical properties of pure and doped crystals of potassium titanyl phosphate (KTP) family have been reviewed to analyze the structural and symmetry conditionality of nonlinear optical properties of these crystals. The pseudosymmetric fea…
We have investigated the nano-scale stripe structures on a parent compound of the iron chalcogenide superconductor Fe1+dTe (d=0.033) by using low-temperature scanning tunneling microscopy (STM). The STM topographies and the dI/dV maps show clear stripe structures with the period of twice as large as the Te-Te atomic d…
The co-doped ceria-based materials with general composition formula Ce0.8-xYxSm0.2O2-δ (x = 0, 0.02, 0.04, 0.06) were prepared through the sol-gel method. The single phase of the prepared materials was confirmed by X-ray diffraction (XRD). The lattice parameters were determined by least square fitting of UNIT CELL pro…
We describe a novel 'switch-off' biosensing strategy for the detection of chymotrypsin based on surface plasmon resonance (SPR) and surface-enhanced Raman scattering (SERS) spectroscopy. This approach analyzes the fingerprint spectrum of the chymotrypsin-catalyzed substrate. The lowest probed concentration is 0.4 nM f…
In this paper, a composite electrode was prepared from a mixture of activated carbon derived from precarbonization of cassava peel (CP) and carbon nanotubes (CNTs). The activated carbon was produced by pyrolysis process using ZnCl2 as an activation agent. A N2 adsorption-desorption analysis for the sample indicated th…
The interaction of a hydroxyl OH radical with a graphene surface has been investigated by the density functional theory (DFT) method in order to elucidate the radical scavenge mechanism of the graphene surface. The DFT calculation showed that the OH radical binds directly to the carbon atom of the graphene surface and…
A novel phenomenon is reported, wherein, if a mother droplet spreads faster than its critical velocity on a superhydrophilic surface, a smaller daughter droplet is emitted in a process that is controlled both dynamically and thermodynamically. Using a high-speed camera, we directly observed that while the lower part o…
The Rancimat and accelerated stove tests were used to determine the oxidative stability of B100 biodiesel mixed with synthetic antioxidants. The predictive equations, with process variable, were obtained by applying a simplex-centroid design. Regardless of the antioxidant used, all assays carried out with the accelera…
Several new iridium(III) and rhodium(III) complexes bearing 5-methyltetrazolate (MeCN4(-)) have been prepared, and their structures in the crystals and in solution have been determined by X-ray analysis and by NMR spectroscopy, respectively. In the crystals of the mononuclear complexes, κN(2)-coordination of MeCN4(-)…