Materials Literature
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Abstract A novel core/sheath glycosylated polyphosphazene nanofibrous membrane for use in protein recognition is fabricated via coaxial electrospinning process with alkyl polyphosphazene as the sheath and polyacrylonitrile (PAN) as the core, followed by introduction of saccharide residues to the surface of the polypho…
The performance of a direct methanol fuel cell (DMFC) has complex nonlinear characteristics. In this paper, the performance of a DMFC has been modeled using a neural network approach. The input parameters of the DMFC model include cell geometrical and operational parameters such as the cell temperature, oxygen flow ra…
We describe uncooled thermal detectors with a peak detectivity of at least 3 ×109cm √{Hz}/W with spectrally selective absorption in the long-wave infrared. The spectral selectivity in absorption is achieved through resonant cavity coupling of a thin metal film with a low-order air-gap optical cavity. The electrical re…
In the present investigation, we describe a cost effective green synthesis of silver nanoparticles from the extract of Boswellia serrata flower as reducing agent. The formed silver nanoparticles were characterized using UV-Vis absorption spectroscopy, Fourier Transfer Infra Red and Scanning Electron Microscope (SEM).…
Abstract A study on the gas-phase epoxidation of propene with vapor hydrogen peroxide has been carried out. The main purpose was to understand the key factors in the reaction and the relationship between epoxidation of propene and decomposition of hydrogen peroxide, which is the main side reaction. The decomposition w…
Abstract Evaporation rates play a key role in evaporation crystallization and the drying of crystal products. Raman analysis was used to study the effect of the evaporation rate on the polymorphs of indomethacin at room temperature. The studied solvents were highly volatile ethanol, acetone, and ethyl acetate. The app…
VERIFIKASI KINERJA ALAT PARTICLE SIZE ANALYZER (PSA) HORIBA LB-550 UNTUK PENENTUAN DISTRIBUSI UKURAN NANOPARTIKEL. Dengan semakin meningkatnya perkembangan ilmu pengetahuan di bidang nanoteknologi membuat penelitian menggunakan material berukuran nanopartikel banyak dilakukan. Penelitian yang menggunakan bahan dasar b…
Proteins belonging to glycoside hydrolase family 63 (GH63) are found in bacteria, archaea and eukaryotes. Although the eukaryotic GH63 proteins have been identified as processing α-glucosidase I, the substrate specificities of the bacterial and archaeal GH63 proteins are not clear. Here, we converted a bacterial GH63…
V. arctostaphylos or “Qare-Qat” is a perennial plant from Ericaceae family has traditionally used as antiseptic for treatment of some infections such as urinary tract infections. This study evaluate the antimicrobial activity of V. arctostaphylos extracts (aqueous, ethanol, methanol and ethyl acetate) from leaves and…
Abstract magnified image We study by X‐ray nanodiffraction the statistical distribution of the two possible twinned zinc‐blende (ZB) orientations as well as the occurrence of the wurtzite structure within single GaAs nanowires (NWs) grown by molecular beam epitaxy on Si(111). A fast scanning scheme allowed to perform…
ABSTRACT Poly(3‐hexylthiophene) (P3HT) is a polymer widely used in organic photovoltaic devices. Discrepancies in information exist in the literature about its morphological structure in solution and in the solid state. This work is a theoretical study, in which the structure of P3HT in the solid state is deduced from…
Abstract This review looks at the advancements in the development of a sensor for technetium (Tc) that is applicable to characterizing and monitoring the vadose zone and associated subsurface water. Subsurface contamination by Tc is of particular concern for two reasons: the long lifetime of its most common isotope 99…
Phosphorylation of histone H4 serine 47 (H4S47ph) is catalyzed by Pak2, a member of the p21-activated serine/threonine protein kinase (Pak) family and regulates the deposition of histone variant H3.3. However, the phosphatase(s) involved in the regulation of H4S47ph levels was unknown. Here, we show that three phospha…
PURPOSE: The purpose of this study was to evaluate the feasibility and the therapeutic efficacy of a novel drug-delivery system that uses superparamagnetic iron oxide (SPIO) and iodized oil (IO) to improve the selective intra-arterial (IA) drug delivery to an experimentally induced hepatic tumor. MATERIALS AND METHODS…
Van der Waals interaction is an elusive many-body effect arising from instantaneous charge fluctuations. Fundamental understanding of this effect plays an important role in computational chemistry, physics and materials science. In this article, recent advances in the evaluation of van der Waals coefficients, in parti…
Abstract The intermetallic zinc compounds AAu4Zn2 (A = Ca, Ce, Pr, Nd) were obtained by induction melting of the elements in sealed tantalum tubes. The samples were studied by X‐ray diffraction on powders. The structures of the calcium and the cerium compound were refined from single crystal diffraction data: YbAl4Mo2…
We investigated the hysteresis and off-current (Ioff) of amorphous In-Ga-Zn oxide thin-film transistors illuminated by 400 nm light at various intensities. Both hysteresis and Ioffare induced by the ionized oxygen vacancy (Vo2+) that forms at the interface between the gate insulator and active layer. In our measuremen…
The combination of X-ray diffraction experiments with optical methods such as Raman, UV/Vis absorption and fluorescence spectroscopy greatly enhances and complements the specificity of the obtained information. The upgraded version of the in situ on-axis micro-spectrophotometer, MS2, at the macromolecular crystallogra…
Abstract Single crystals of Cs2[(UO2)2(CrO4)3] (1) were obtained by hydrothermal synthesis. The structure of 1 is based upon 2‐dimensional uranyl chromate layers with the composition [(UO2)2(CrO4)3]2–. The cesium atoms are located in the interlayer under “bulbs” centered at the Cr(2)O4 tetrahedra. The thermal behavior…
Epidermal growth factor receptors (EGFRs) are highly conserved members of the tyrosine kinase receptor superfamily found in metazoans and plants. In arthropods, EGFRs are vital for the proper development of embryos and of adult limbs, gonads, and eyes as well as affecting body size. In searching for genes involved in…