Materials Literature
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Aiming at development of a micellar nanoparticle system for intracellular drug release triggered by glutathione in tumor cells, a disulfide-linked biodegradable diblock copolymer of poly(epsilon-caprolactone) and poly(ethyl ethylene phosphate) was synthesized. It formed biocompatible micelles loaded with doxorubicin i…
We present a series of molecular dynamics, lattice dynamics, and Boltzmann transport equation calculations aimed at understanding heat transport in Silicon nanowires. In agreement with recent experiments, we find that the computed thermal conductivity strongly depends on the surface structure. It may be as high as tha…
Methyl 2-(4-(2-metylpropoxy)-phenyl)-4-methyl-thiazole-5-carboxylate (Me-est(H)), propyl 2-(4-(2-metylpropoxy)-phenyl)-4-methyl-thiazole-5-carboxylate (Pr-est(H)), and 2-methyllpropyl 2-(4-(2-metylpropoxy)-phenyl)-4-methyl-thiazole-5-carboxylate (i-But-est(H)) were prepared, and the relationship between the molecular…
In this work, different morphologies of copper oxide nanostructures such as nanofibers, nanospindies, nanocones and nanobricks were successfully synthesized by microwave-assisted method. The as-prepared copper oxide nanostructure materials were characterized by various techniques, including field-emission scan electro…
Abstract BACKGROUND: Although several methods have been reported for the preparation of hyperbranched cationic polyelectrolytes (HCPs), their applicability is limited. A convenient, facile strategy based on atom transfer radical polymerization (ATRP) of N , N ‐dimethyl‐ N ‐(2‐methacryloyloxy)ethyl(2‐bromoisobutyryloxy…
We report here a simple method of fabricating multi-layered architectures of cross-aligned inorganic nanowires via sequential electrospinning method equipped with a newly devised collector that is able to prepare aligned inorganic nanowires. The multi-layers of aligned TiO2 nanowires can be deposited in a proportional…
We hypothesized that the control of the poly(epsilon-caprolactone) (PCL) nanosphere sizes could be achieved by controlling the size of the primary emulsion droplets considering a combined effect of the ethanol volume fraction in the organic phase and the stirring rate of the primary emulsion. In this way, we prepared…
The thermally stimulated currents technique has been used to study the relaxations at temperatures between 0° and 160°C in polyethylene naphthalate (PEN). Different material structures were obtained by different treatments. Consequently, for each sample, we have obtained one peak located around 130°C, which is attribu…
Zinc oxide nanorods were synthesized by a direct electrodeposition technique on indium tin oxide plates. The effect of a systematic variation of the deposition potential and the inter-electrode distance on the morphology of ZnO nanorods was investigated. X-ray diffraction studies indicated that the nanorods are highly…
Cobalt ferrite nanowires with a diameter of about 30 nm have been prepared inside anodized aluminum oxide (AAO) templates with one end closed nanopores using a vacuum infiltration method. The ferrite phase formation was confirmed by X-ray diffraction. Field emission scanning electron microscopy (FE-SEM) and transmissi…
Molecular dynamics (MD) simulations are performed on condensed double-walled carbon nanotubes (CDWCNTs) to investigate the effects of compressed interwall spacings on their mechanical properties, in particular their buckling behavior under axial compression, torsion and bending. In CDWCNTs, the inner and outer nanotub…
Periodical arrays of silver nanowires about 60 nm in diameter were assembled in anodic alumina membranes by electrochemical deposition. After a partial removal of the membrane, the as-grown arrays were used as a surface enhanced Raman scattering substrate. Raman spectra of Rhodamine 6G solutions with different concent…
Removal of NO and CH 4 gases was examined using nonthermal-plasma (NTP)-assisted 12% CuO/15% TiO 2 /γ-Al 2 O 3 under four reaction conditions (NO + CH 4, NO + CH 4 + O 2, NO + CH 4 + NTP, and NO + CH 4 + O 2 + NTP). Methods of Brunauer−Emmett−Teller (BET), transmission electron microscopy (TEM), X-ray diffraction (XRD…
A kind of unique noble metal/polymer/inorganic compound nanostructured complex, poly(3,4-ethylenedioxythiophene) (PEDOT)/β-Fe 3+ O(OH, Cl) nanospindle containing Au nanoparticles (Au/PEDOT/β-Fe 3+ O(OH, Cl) composite nanospindle), was successfully synthesized in the presence of cetyltrimethylammonium bromide and poly(…
Abstract Silane chemistry was implemented on various formulations of wood/thermoplastic polymer composites (WPCs) with low density polyethylene (LDPE) and high wood content (60 wt%). Taguchi analysis was used to evaluate the impact of vinyltrimethoxysilane content (VTMS), dicumyl peroxide content (DCP), and processing…
Liquid crystal alignment was investigated on the microgrooved silica surfaces modified by organosilanes. In this study, the microgrooved silica surfaces were fabricated by the soft embossing method followed by forming self-assembled monolayers (SAMs) of organosilanes on these microgrooved silica surfaces. The surface…
We have studied relaxation dynamics of the thermally and photoinduced metastable states in $[\text{Fe}{(\text{ptz})}_{6}]{({\text{BF}}_{4})}_{2}$ near the spin transition temperature using magnetic-susceptibility measurements and optical-absorption spectroscopy as function of the time. We observed two-step relaxations…
We report on a study of influence of dopants (Ti and Ni) on the dehydrogenation properties of NaAlH 4 using the ab initio density functional method. Calculations show that the influence of dopants on the electronic structure is much localized; only the electronic structures of atoms in the vicinity of the dopants were…
Micro- and nano-sized materials have received much attention regarding their biocompatibility and toxicity. To understand the influence of such materials on animals, it is very important to determine their internal distribution behavior. In this study, the biodistributions of Pt and TiO2 micro- and nano-sized particle…
Active and dynamic modulation of light has been one of major contributions of liquid crystals to Optics. The spectrum of application range from signposting panels to high resolution imaging. The development of new materials is the key to continued progress in this field. To promote this we will present in this paper r…