Materials Literature
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In this study, octyltriphenylphosphonium bromide [OTPP-Br] was prepared from the reaction of triphenylphosphine and 1 -bromooctane. The modification of clay was done by ion exchange reaction using OTPP-Br in water medium. Poly(amic acid) was prepared from the reaction of 3,3',4,4'-Benzophenonetetracarboxylic dianhydri…
Morphologically interesting charophytes were found from Chapai-Nawabgonj and Rajshahi districts in Bangladesh. These are: swollen branchlet of Lamprothamnium papulosum (Wallr.) J. Groves, long stalked gametangia and twin antheridia of Nitella hyalina (DC.) Agardh, bifid bract cells of Chara flaccida A. Braun and bifid…
Nanocomposite poly (methyl methacrylate) :titanium dioxide (PMMA :TiO 2 ) film were deposited on glass substrate. The effect of annealing temperature, especially on electrical, dielectric and the morphological properties of the thin films were investigated by current-voltage (I-V) measurement, impedance spectroscopy,…
Atomistic tight-binding calculations show that two-dimensional topological insulators can be obtained using Ge or Ge/Si nanotechnologies. The strong quantum confinement is used to open energy gaps in the valence band of artificial graphene made of Ge. These gaps are topologically nontrivial due to the combination of t…
Three molecules HArF@BNNT(5,0), HArF@BNNT(6,0), and HArF@BNNT(7,0) have been formed by HArF encapsulated in boron nitride nanotubes (BNNTs) with different sizes. Due to the interaction between the HArF and the BNNTs, the HAr bond lengths are in a decrease trend, while the ArF bond lengths are in an increase trend co…
Magnetic microspheres of 6-thioguanine were prepared by continuous solvent evaporation technique. An attempt was made to target the magnetic microspheres to the cancerous site. Poly lactic acid-polyethylene glycol copolyester (PLA-co-PEG) was used as a polymer. Microspheres were characterized in terms of percentage pr…
Hydrothermal reactions of Pb(NO3)2 and 3-fluorophthalic acid (H2Fpht) in the absence or presence of 2,2′-bipyridine (bpy) gave two coordination polymers: Pb5(Fpht)4(Fba)2 (1) and [Pb2(Fpht)2(bpy)(H2O)]·3H2O (2). The 3-fluorobenzoic acid (HFba) results from an in situ decarboxylation of H2Fpht. Solid 1 displays a 2-D s…
We have studied the electrochemical, optical, and magnetic properties of nickel-intercalated InSe single crystals. The energy position of the excitonic maximum and the full width at half maximum of the excitonic band in the Ni x InSe intercalation compounds have been shown to be nonmonotonic functions of nickel concen…
An aging resistant styrene-butadiene rubber (SBR) composite was prepared by using N-isopropyl-N'-phenyl-p-phenylenediamine (antioxidant 4010NA) loaded halloysite nanotube (HNT) as filler. The antioxidant loaded in the tube lumens of HNTs allowed for sustained released through HNT openings, provided longer supply of an…
The electronic structure and quantum-transport properties of Fe/Fe 2 VAl/Fe trilayers were investigated by using first-principles calculations. The high-transmission area in k-space can be confined by using a semimetallic Fe 2 VAl layer. The confined k-space originates from the small Fermi surface of Fe 2 VAl. Moreove…
Plasma polymerized allylamine films were deposited onto quartz particles for the removal of humic acid, a common water contaminant. Allylamine flow rates of 6.6 and 11.5 standard cubic centrimetres per minute (sccm) were used and the mass of particles varied from 50 to 500 g. At an allylamine flow rate of 6.6 sccm, th…
Phase diagram of alumina sol has been investigated, wherein a unique region of shear reversible gels has been discovered. In this region, rapid transformation from gel to sol was observed, where the viscosity shows a sudden drop by six orders of magnitude on application of shear stress. The sol to gel transformation w…
In this paper, we investigate the novel behavior of induced focusing in nonlinear metamaterials (MMs) through designing probe-pump configuration, where the coupled waves may simultaneously experience negative refractive index or positive refractive index, or one experiences positive refractive index and another experi…
Adsorption of hydrocarbon components generated in deuterated benzene plasma studied by in situ real-time infrared absorption spectroscopy, Shinohara, Masanori, Taniguchi, Yujiro, Takaki, Yuya, Matsuda, Yoshinobu, Fujiyama, Hiroshi
A hybrid structure consisting of a square lattice of gold disk arrays and an overlaying gold film is proposed as an optical coupler for a backside-illuminated quantum well infrared photodetector (QWIP). Finite difference time-domain method is used to numerically simulate the reflection spectra and the field distributi…
TeO2 based glasses with the molar composition (70-x-y)TeO2-20WO3-10Y2O3-xEr2O3-yYb2O3, where x = 0 and 0.5 mol% and y = 0, 0.5, 1, 2 and 4 mol%, were prepared by the melt quenching technique. The Raman spectra of the vitreous samples, using laser excitation line of 532 nm showed a band distribution related with Te-O a…
I discuss here the contribution from J. S. Miller and co-workers concerning the discovery of ferromagnetism in an organometallic compound. The important peculiarities around this discovery, that the moments from p-electrons participate in magnetic ordering, strongly contributed to open the area of molecule-based magne…
We construct a reliable actively Q-switched Nd:YVO4laser to comparatively investigate the output performance of the second harmonic generation between the extracavity and intracavity configurations under a similar operated condition. It is experimentally found that the peak power at 532 nm obtained with the extracavit…
The photophysical properties of Ruthenium-bipyridine complexes bearing a bibenzimidazole ligand were investigated. The nitrogens on the bibenzimidazole-ligand were protected, by adding either a phenylene group or a 1,2-ethandiyl group, to remove the photophysical dependence of the complex on the protonation state of t…
It's alive! A significant step forward in the controlled radical polymerization of ethylene through the reversible addition–fragmentation chain-transfer process was reported recently by Monteil and co-workers. Control over molecular weight, dispersity of the molecular weight distribution, and polymer end groups were i…