Materials Literature
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Drug delivery to brain or brain targeting is one of the most challenging research areas in pharmaceutical sciences. The blood-brain barrier (BBB) represents an insurmountable obstacle for a large number of drugs, including antibiotics, antineoplastic agents, and a variety of central nervous system (CNS)-active drugs,…
The current study was performed to examine the mechanisms underlying the potential effects of E. KANSUI on IL-6-induced cellular signaling in human hepatoma cells. We found that two diterpenoids, kansuinine A and B, from E. KANSUI have an inhibitory effect on IL-6-induced Stat3 activation by activating ERK1/2. Inhibit…
One of the crucial factors for improving intermediate-temperature solid oxide fuel cell (SOFC) performance relies on the reduction in the activation loss originating from limited electrode reaction kinetics. We investigated the properties and functions of the nanocrystalline interlayer via quantum simulation and elect…
In this paper the wrinkle property of fabrics was studied by using the projected profile light line technique. In analyzing the results, three parameters of mean deviation and the absolute of the mean values of heights extracted from the projected surface profile line on the surface of the fabric and surface area rati…
The microwave magnetic properties of rare earth–3d intermetallic compounds Nd(Fe 1− x Co x ) 10 V 2 (ThMn 12 -type, 0 ⩽ x ⩽ 0.5) have been studied. The x-ray diffraction analyses and static magnetic measurements indicate that the anisotropy in this system is strongly modified by Co substitution. With increasing Co con…
Recently several liquid crystals having a chiral smectic C phase (SmC*) have been studied by means of NMR spectroscopy combined with ab initio calculations. The advantage of exploiting different experimental techiques, such as 2H and 13C NMR, and the possibility to calculate relevant spectroscopic quantities, such as…
During the course of a study on the clustering of W-Se and W-S mixtures in the gas phase using laser desorption ionization (LDI) mass spectrometry, we observed several anionic W-O clusters. Three distinct species, W(6)O(19)(-), W(13)O(29)(-), and W(14)O(32)(-), stand out as intense peaks in the regular mass spectral p…
Abstract A novel method for the synthesis of polyacrylonitrile (PAN)‐coated multiwall carbon nanotubes (MWCNTs) via a simple soap‐free emulsion polymerization is presented for the first time. The polymerization was initiated with conventional anionic ammonium persulfate (APS) at 65 °C. The modification of PAN on MWCNT…
Azobenzene-substituted tris(phenylisoxazolyl)benzene 1 was developed as a photoresponsive gelator. A detailed study of the self-assembly of the trans- and cis-isomers in solution revealed that the planar trans-isomer assembled to form molecular stacks along its C3 axis, whereas the cis-isomer did not owing to steric r…
We investigate isotropic-isotropic, isotropic-nematic, and nematic-nematic phase coexistence in binary mixtures of circular platelets with vanishing thickness, continuous rotational degrees of freedom, and radial size ratios lambda up to 5. A fundamental measure density functional theory, previously used for the one-c…
Down-conversion from blue to near infrared (NIR) has been demonstrated in$\hbox{Tm}^{3+}\hbox{–}{\hbox {Yb}}^{3+}$codoped$\hbox{Y}_{2}\hbox{O}_{3}$transparent ceramics. Upon the 464-nm excitation, the energy transfer (ET) mechanisms consisted of the$\hbox{Tm}^{3+}:{^{1}\hbox{G}}_{4}\rightarrow 2{\hbox {Yb}}^{3+}:{^{2}…
Automated backscatter Kikuchi diffraction in the SEM is about to become a tool for process and quality control. Mandatory requirements for these applications are a high speed and provisions to enable re-examination of the results at any time. Means and motivation for high speed electron backscattering diffraction are…
Orientation control: We demonstrate a facile method for the controlled orientation of 1D mesochannels by applying a novel rubbing method that utilizes lyotropic liquid crystals (LLC) made of highly concentrated surfactants. This method does not have any special requirements for the supports or the substrates. Here we…
Oxidative polycondensation reaction conditions of [(2-mercaptophenyl)iminomethyl]-2-naphthol (2-MPIM-2N) were studied using oxidants such as air and NaOCl in an aqueous alkaline medium between 40 °C and 90 °C. The structure of poly-[(2-mercaptophenyl)iminomethyl]-2-naphthol (P-2-MPIM-2N) was characterized by 1H- 13C N…
Different types of planar Au/TiO(2) model catalysts are produced on TiO(2)(110) single-crystal substrates and thin TiO(2) films on Ru(0001) by physical vapor deposition of gold under ultrahigh-vacuum (UHV) conditions or by micelle-based chemical routes. Both the Au nanoparticles and the support are characterized by su…
In the past few decades, supramolecular polymers have emerged as novel materials with a wide variety of different functions. In this essay we reflect on the history of supramolecular polymers, their function in various applications and the challenges to be met in the near future.
There is a controversy in the literature over whether small gases, such as Ne, can adsorb in the interstitial channels (ICs) of carbon nanotube bundles. We distinguish between two types of ICs: nondefect, defined as ICs in perfectly packed arrays of nanotubes having all of the same diameter (homogeneous) defined where…
Initial sintering rates of nearly monodisperse Pd model catalyst particles on silica, titania, and mixtures thereof were measured as a function of temperature on the time scale of a few seconds in the gas phase. Support particles and active phase were synthesized by aerosol based techniques permitting a high degree of…
We performed low-temperature electron transport spectroscopy to evaluate defects in individual single-walled carbon nanotube (SWNT) devices assembled via dielectrophoresis from a surfactant-free solution. At 4.2 K, the majority of the devices show periodic and well-defined Coulomb diamonds near zero gate voltage corre…
Gas-phase production of carbon nanotubes in presence of a metal catalyst with a continuous wave ${\text{CO}}_{2}$ laser is investigated by combining coherent anti-Stokes Raman scattering (CARS), laser-induced fluorescence (LIF), and laser-induced incandescence (LII). These in situ techniques provide a unique investiga…