Materials Literature
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In recent decades, considerable efforts related to the study of 2,4,6-trinitrotoluene (TNT) have been focused on either developing ultraselective and ultrasensitive methods for real-time analytical detection or exploiting highly efficient and green technologies for treatment of contaminated waters. In the present work…
X-Ray Raman Spectroscopy (XRS) is used to study the electronic properties of bulk lithium borohydride (LiBH(4)) and LiBH(4) in porous carbon nano-composites (LiBH(4)/C) during dehydrogenation. The lithium (Li), boron (B) and carbon (C) K-edges are studied and compared with calculations of the starting material and int…
We synthesized Ag and Ag/SiO2 nanoparticles (NPs) and investigated the energy coupling processes between the localized surface plasmons of NPs and the active quantum well regions of nanopillar light-emitting diodes (LEDs). Nanopillar LEDs embedded with Ag NPs exhibited a decreased photoluminescence (PL) intensity, whi…
The relatively high price of aluminum alkoxides as an alumina source and organic surfactants as morphology control or structure directing agents are less attractive for practical applications to the synthesis of nanostructured alumina. Moreover, some of these synthesis processes may generate large masses of salt by-pr…
N-Confused porphyrin oxorhenium(V) complexes were prepared and their X-ray structures were elucidated. The oxorhenium(V) complexes can transfer oxygen atom from pyridine N-oxide to triphenylphosphine, in which unique cooperation between metal and ligand was observed.
An easy synthesis of magnetic nanoparticles (Fe3O4) is described. Transmission electron microscopy (TEM), atomic force microscopy (AFM), dynamic light scattering (DLS) and X-ray diffraction (XRD) have been used to study the well dispersed and uniformly spherical nanoparticles. 5-Fluorouracil (5-FU) has been successful…
Hydroxyapatite (HA) was synthesized in situ by the precipitation method, with and without the presence of collagen (COLL), to study its influence on HA’s structural and morphological characteristics. The material was characterized by energy dispersive X-ray spectroscopy (EDX), Fourier transform infrared spectroscopy (…
PURPOSE: Natural resources are receiving growing interest because of their possible conversion from a cheap and easily available material into a biomedical product. Cuttlefish bone from Sepia Officinalis was investigated in order to obtain an hydroxyapatite porous scaffold using hydrothermal transformation. METHODS: C…
Chemically cross-linked polyurethanes (PUs) were synthesized with two different cross-linking densities and dangling chain concentrations to understand the difference between the molecular mobility of the bulk and free surface based on dynamic viscoelastic properties, lateral force microscopy (LFM) and scanning viscoe…
This paper presents a method which combines the statistical analysis with texture structural analysis called Local Binary Gray Level Cooccurrence Matrix (LBGLCM) to investigate the phase transition temperatures of thermotropic p,n -alkyloxy benzoic acid ( n OBA, n=4,6,8,10 and 12) liquid crystals. Textures of the home…
N,N′,N′′-Trialkyltriazatriangulenium (R-TATA+) tetrafluoroborate (BF4−) salts form highly ordered thin films directly when spin-cast onto rotating substrates. The homogeneous and crystalline thin films show macroscopic order over centimetres. The crystal structures of the R-TATA·BF4 salts are investigated and compared…
Polyaniline (PAni) is one of imported polymer for synthesis solar cells .The quality of film depended on the method of polymerization. In this research PAni have been prepared by the electrochemical polymerization of aniline on stainless steel electrode. The electrical conductivity of these films was measured by two–p…
Carbon nanotubes (CNTs) wrapped by polysaccharide chains via noncovalent interactions have been shown to be soluble and dispersed in aqueous environments, and have several potential chemical and biomedical applications. The wrapping mechanism, in particular the role played by the end of the CNT, remains, however, unkn…
An easy and practical method is adopted to assemble mesoporous carbon particles into a macroporous chitosan membrane to form hierarchical adsorption membranes for water treatment. The membrane showed both good static and dynamic adsorption properties on model dye fuchsin, which implies its great potential for decontam…
This paper describes a method, based on co-precipitation, for generating small semiconducting polymer dot (Pdot) nanocomposites, which contain either gold or iron oxide nanoparticles within the Pdot matrix. We demonstrate the utility of Pdot-Au nanoparticles (Au-NP-Pdots) in dual-modality imaging in which co-localizat…
Lignocellulosic fibrous polymeric composite materials have become an attractive replacement for heavier metals due to their superior fatigue and corrosion properties. In this study, Infrared (IR) thermal imaging technique has been used to detect the defect in unidirectional Kenaf bast fibre reinforced composite materi…
We have developed a solid-phase extraction method based on conductive polypyrrole (PPy) hollow fibers which were fabricated by electrospinning and in situ polymerization. The electrospun poly (e-caprolactone) (PCL) fibers were employed as templates for the in situ surface polymerization of PPy under mechanical stirrin…
Nanohybrids of poly(vinylidene fluoride) with layered silicates have been synthesized by melt extrusion and nano-channels have been fabricated by swift heavy ion (SHI) irradiation followed by chemical etching of the selective amorphous zones in the latent tracks. The channel diameter was reduced to 30 nm in the presen…
Peripherally π-extended N-confused porphyrin rhenium complexes were synthesized by the rhenium-mediated reactions of N-confused porphyrins with 2-methyl azaarene and the structures were elucidated by X-ray crystallographic analyses. Extension of the π-conjugation in the complexes was supported by the absorption spectr…
We give an update of the situation concerning the effect of electron–electron interactions on the physics of a neutral graphene system at low energies. We revise old renormalization group results and the use of 1/ N expansion to address questions of the possible opening of a low-energy gap, and the magnitude of the gr…