Materials Literature
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Silicone elastomers are promising materials for dielectric elastomer transducers (DETs) due to their superior properties such as high efficiency, reliability and fast response times. DETs consist of thin elastomer films sandwiched between compliant electrodes, and they constitute an interesting class of transducer due…
Driving forces for association between oppositely charged biological or synthetic polymers in aqueous solution have long been identified as electrostatic in origin. This attraction is broken down into an entropic component, due to loss of counterions, and an enthalpic component, stemming from Coulombic attraction betw…
It is thought that KRAS oncoproteins are constitutively active because their guanosine triphosphatase (GTPase) activity is disabled. Consequently, drugs targeting the inactive or guanosine 5'-diphosphate-bound conformation are not expected to be effective. We describe a mechanism that enables such drugs to inhibit KRA…
Natural fibres are used since many centuries for different purposes since the beginning of civilization. They have been used for ropes, toughening of pots etc since many centuries. Natural fibers are of two types. Natural inorganic fibers such as Basalt, Asbestos etc and the other are the natural organic fibers such a…
In this study, physicochemical properties and the area of use of diatomites that occur in association with Central Anatolian volcanism in the Karacaren region (rgp country, Nevehir) are investigated. In the investigated area two stratigraphic sections were measured, one is in Quaternary lake units (K1) and another sec…
Cerium-doped 0.8BaTiO3-0.2Bi[Formula: see text]K[Formula: see text]TiO3with composition 0.8Ba0.2(Bi[Formula: see text]K[Formula: see text])Ti[Formula: see text]Ce[Formula: see text]O3where x = 0.01, 0.02, 0.03, 0.04, 0.05, 0.06 lead free ceramics were prepared by conventional solid state reaction method followed by hi…
A series of ceria-doped mesoporous TiO2 thin films with anatase phase are synthesized and used as the support of platinum catalysts for low-temperature catalytic combustion of methanol. Since the methanol combustion on the catalysts can usually generate local overheating, which unavoidably leads to the structure destr…
We study the formation of bands of colloidal particles driven by periodic external fields. Using Brownian dynamics, we determine the dependence of the band width on the strength of the particle interactions and on the intensity and periodicity of the field. We also investigate the switching (field-on) dynamics and the…
We have computationally investigated the use of the multisegment, multiaddition, plug-flow crystallizer (MSMA-PFC) for use in producing pharmaceutical crystals. A population balance framework was used to model the crystallization process. The dissolution of crystals can be modeled when solubility is below saturation.…
Abstract. This paper presents a free and open-source program called PyXRD (short for Python X-ray diffraction) to improve the quantification of complex, poly-phasic mixed-layer phyllosilicate assemblages. The validity of the program was checked by comparing its output with Sybilla v2.2.2, which shares the same mathema…
Gradient metasurfaces have recently emerged as a powerful tool for the control of externally incident optical wavefronts. Here we present a theoretical study showing how they can also dramatically modify the radiation properties of light emitters located in their near-field zone. First, the spontaneous emission decay…
Abstract The aim of the work was to develop a mathematical model for computing the steady-state voltage – current characteristics of a planar Solid Oxide Fuel Cell and to determine the performance of a new SOFC design. The design involves cross-flow bipolar plates. Each of the bipolar plates has an air channel system…
Hierarchically structured composite of polypyrrole (PPy) and 1,4-naphthoquinone (NQ) was prepared by incorporation of the guest redox-active organic molecule NQ in the host redox-active conductive polymer PPy. The composite and its hierarchical structure induced enhanced electrochemical performances as a redox capacit…
Abstract Aerosol‐assisted chemical vapour deposition of substituted polyoxometalates H4[PMo11VO40], H7[PMo8V4O40], [nBu4N]4[PVW11O40] and [nBu4N]5[PV2W10O40] resulted in the formation of vanadium‐doped metal oxide thin films. Depositions were carried out at 550 °C in methanol or acetonitrile for the POMs that containe…
The solubility of 1,3,5-benzenetricarboxylic acid in pure water, isopropyl alcohol, isobutyl alcohol, methanol, ethanol, and ethylene glycol were measured at the temperature range from 298 to 360 K. The order of solubility of 1,3,5-benzenetricarboxylic acid was ethanol > methanol > ethylene glycol > isobutanol > isopr…
Polymeric micelles are macromolecular nanoconstructs which are formed by self-assembly of synthetic amphiphilic block copolymers. These copolymers could be chemically modified to expand their functionality and hence obtain a multifunctional micelle which could serve several functions simultaneously, for example, long…
Abstract The effect of Rh‐ and Ir‐centers on the optical properties of the BODIPY core has been studied. To this end, novel metal complexes tethered to BODIPY have been prepared through an easy and versatile procedure using N‐directed C–H activation reactions. The organometallic moiety has a tremendous influence on th…
Recently, two-dimensional transition metal dichalcogenides have intrigued much attention due to their promising applications in optoelectronics. The electrostatic property investigation of WSe2 nanostructures is essential for device application. Here, the interlayer screening effects of WSe2 nanoplates with different…
A short study on bromination of multiwalled carbon nanotubes (MWCNTs) through new and convenient methods was reported. Bromine (Br) is chemically attached on MWCNTs surfaces through electrophilic addition and radical reactions using N-Bromosuccinimide (NBS), NH4NO3/NBS and Br2 under thermal and UV conditions. Function…
Quantum chemical calculations have been carried out to study the interactions of boron nitride nanotubes (BNNTs) with Al, Ti, and Cu atoms. The interaction of these metals with pristine BNNTs, BNNTs with B or N vacancy defects, and BNNTs with C substitution have been investigated. Our results indicate that Ti exhibits…