Materials Literature
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The solubility of artemisinin in pure methanol, ethyl acetate, acetone, acetonitrile, cyclohexane, toluene, and chloroform was measured by a synthetic method over the temperature range from (283.15 to 323.15) K at atmospheric pressure. The results show that the solubility of artemisinin increases with increasing tempe…
Light- and temperature-driven multistable chiral materials composed of a binaphthyl moiety as a twisting part and an azobenzene moiety as a photoresponsive part in a single component were investigated. It has been found that the materials show reversible change in a dihedral angle of the twisting part at various tempe…
Mechanical properties and visual appearance of galvannealed steel sheets are strongly influenced by steel substrate surfaces before dipping into molten Zn. It has been known that oil contamination, iron fragments and surface enrichment of oxides deteriorate the Fe–Zn reaction and result in various harmful surface defe…
In this article, injection processing of wood flour/PP composite and the effects of processing parameters on its mechanical properties are investigated. Injection pressure and pressure holding time were systematically chosen as the critical processing parameters. The results of this research work indicate that increas…
The tuning of the dispersion characteristics of a balanced composite right- and left-handed transmission lines is demonstrated at centimeter and millimeter wavelengths. To this aim, coplanar waveguides, periodically loaded by interdigitated capacitances and stublike inductances, were fabricated onto a Ba0.5Sr0.5TiO3 f…
In this work, rapid fabrication of Au nanoparticle (Au NP) films has been simply achieved by alternate adsorption of citrate-stabilized Au NPs and poly(diallyldimethylammonium chloride) with the aid of centrifugal force. In contrast to conventional electrostatic assembly, we carried out the assembly process in a centr…
Manipulation of internal strain by an external light beam called photoelastic effect has been firmly established in ZnO nanorods. The underlying mechanism of this interesting phenomenon arises from the combination of the screening of internal electric field and converse piezoelectric effect. We demonstrate that the ph…
The properties of amorphous hydrogenated carbon nitride (a-C:N:H) materials create the potential for a variety of commercial applications. Plasma-enhanced chemical vapor deposition (PECVD) provides a convenient means of creating thin a-C:N:H films, but the chemistry that dominates the deposition remains unclear. The C…
Inorganic nanoparticles (NPs) display unique size-dependent properties and have applications in many different areas such as medicine and the semiconductor industry. In order to take advantage of these properties, the organization of the NPs must be controlled, either to promote crystallization or to prevent agglomera…
Transmission and reflection gratings were simultaneously formed in azo-dye-doped chiral nematic liquid crystals (N∗LCs) with planar alignment. The formation process is based on a phototuning of the Bragg reflection band of the N∗LC. The helical pitch of the photoreactive N∗LC was spatially controlled with intensity va…
Quasi-aligned β-Ga 2 O 3 nanowires were fabricated using the brass wire meshes as the substrates. The nanowire roots were tightly connected to the brass wire surfaces that resulted in a very good physical and electrical contact. Electrical measurements showed that the ohmic contacts were achieved and the resistivities…
The authors report the modulation of photoluminescence intensity from lead sulfide quantum dots using two laser beams with different wavelengths. Photoluminescence from lead sulfide quantum dots in glasses was reversibly switched between the “bright” and “dark” states and degree of darkening to 16% of the initial inte…
We report the giant dielectric response and electrical properties of Li0.05B0.02Ni0.93O (B=Fe, Ti, and V) ceramics prepared by a polymer pyrolysis route. The giant dielectric response in these materials can be ascribed based on the Maxwell–Wagner polarization and thermally activated mechanisms. It is found that Fe, Ti…
In bacteria, riboflavin phosphorylation and subsequent conversion of FMN into FAD are carried out by FAD synthetase, a single bifunctional enzyme. Both reactions require ATP and Mg(2+). The N-terminal domain of FAD synthetase appears to be responsible for the adenylyltransferase activity, whereas the C-terminal domain…
In order to understand the role of impurities in Co-doped ZnO, while at the same time minimizing the possibility of Co nanocluster formation, Zn1−xCoxO films were grown under relatively oxidizing conditions and then cooled under either N2 or air. Up to the highest doping level x=0.04, after cooling in N2 no measurable…
We synthesized a dithiolato-bridged heterometal trinuclear complex [{(eta(5)-C(5)Me(5))Rh(S(2)C(6)H(4))}(2)Mo(CO)(2)] (1) in which two rhodadithiolene complex units are bridged by a Mo(CO)(2) moiety. Complex 1 with a Rh(III)-Mo(0)-Rh(III) bond exhibits reversible one-step two-electron reduction with potential inversio…
We report the results from magnetic and transport measurements on ${\text{SrFeO}}_{x}$ where we focus on oxygen contents about the ${\text{Sr}}_{4}{\text{Fe}}_{4}{\text{O}}_{11}$ phase $(x=2.75)$ that antiferromagnetically orders at $\ensuremath{\sim}230\text{ }\text{K}$. We find an exchange-bias-like effect in ${\tex…
Chemical vapor deposition (CVD) diamond films were prepared using a variation in nitrogen addition into the gas source admixture by a direct current CVD method. The influence of nitrogen addition on the crystallographic texture and grain shape evolution in heteroepitaxial polycrystalline diamond films was investigated…
Metamaterials can be designed to rotate light as it passes through them. If the effect is strong enough, it can lead to the material having a negative index of refraction and light bouncing around very differently than expected.
A simple technique for the growth of SrO-terminated SrTiO3 surfaces is reported. High quality SrTiO3 epitaxial films were grown by reflection high energy electron diffraction assisted pulsed laser deposition on suitably prepared NdGaO3 (110) substrates. The surface properties, analyzed within a growth/characterization…