Materials Literature
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Cytosine nucleobases were successfully incorporated into the side chain of the self-assembling amyloid peptide fragment HHQALVFFA to give ccAQLVFFA. At a pH range of 3-4, where cytosine is expected to be partially protonated, small-angle X-ray scattering analyses revealed the nucleobase peptide assembles to be well-de…
In this paper the catalytic performances for the low-temperature water−gas shift reaction of Au/TiO 2 type A (from World Gold Council), Au/CeO 2 (developed at UPV-CSIC), CuO/Al 2 O 3 (from BASF), and CuO/ZnO/Al 2 O 3 (from REB Research & Consulting) have been compared. The catalysts were characterized by different tec…
We use inelastic neutron scattering to study the crystalline electric field (CEF) excitations of ${\mathrm{Ce}}^{3+}$ in ${\mathrm{CeFeAsO}}_{1\ensuremath{-}x}{\mathrm{F}}_{x}$ ($x=0$, 0.16). For nonsuperconducting CeFeAsO, the Ce CEF levels have three magnetic doublets in the paramagnetic state, but these doublets sp…
The compounds (TMEDA)M(SC{O}C 6 H 5 ) 2 (M = Ni, 1; Mn, 2 ) have been synthesized and characterized by X-ray crystallography. Both of the monomeric molecular precursors have been used to make the corresponding monodispersed NiS (two different phases) and cubic phase MnS nanocrystals (NCs) under specific experimental c…
We present here a study of the controlled release of amino acid-derived amphiphilic molecules from the internal pore structure of mesoporous nanoparticle drug delivery systems with different structural properties, namely cubic and hexagonal structures of various degrees of complexity. The internal pore surface of the…
Nephrogenic systemic fibrosis (NSF) is a rare but potentially debilitating or even fatal fibrosing condition that most often affects the skin but is now also recognized to involve multiple organs. The first report on NSF was published in 1997, and there is mounting evidence that this condition is associated with renal…
The Metrology Light Source (MLS), the new electron storage ring of the Physikalisch-Technische Bundesanstalt (PTB) located in Berlin, is dedicated to metrology and technological developments in the UV and extreme UV spectral range as well as in the IR and THz region. The MLS can be operated at any electron beam energy…
Abstract A facile method for the preparation of porous ultrafine nanofibers was demonstrated. The PAN/NaHCO 3 composite nanofibers were electrospun, and then NaHCO 3 was removed by a selective dissolution and reaction with the solution of hydrochloric acid (10 wt%). The obtained PAN fibers showed highly porous surface…
The templated growth of polyaniline through porous sol–gel films on ITO substrates has been performed. The polyaniline–silica composites have been synthesized by electrochemical reactive insertion in potentiodynamic and potentiostatic conditions. When the polymer is synthesized by potential step experiments, the shape…
Separation of single-wall carbon nanotubes (SWCNTs) by length via centrifugation in a high density medium, and the characterization of both the separated fractions and the centrifugation process are presented. Significant quantities of the separated SWCNTs ranging in average length from <50 nm to approximately 2 micro…
Hydrated porous birnessite MnO 2 films were prepared on Si substrates and characterized in-depth by field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), transmission electron microscopy (TEM), selected area electron diffraction (SAED), X-ray photoelectron spectroscopy (XPS), and Fourier transf…
The complexes meso- and rac-[(acac)2Ru(mu-L)Ru(acac)2]n, 1 and 2, where L(2-) = 1,4-dioxido-2,3-bis(3,5-dimethylpyrazol-1'-yl)benzene and acac- = 2,4-pentanedionato, were characterized structurally, magnetically, electrochemically, and spectroscopically as well as spectroelectrochemically (UV-vis-NIR, EPR) in the acce…
Electrical current could be efficiently guided in 2D nanotube networks by introducing specific topological defects within the periodic framework. Using semiempirical transport calculations coupled with Landauer-Buttiker formalism of quantum transport in multiterminal nanoscale systems, we provide a detailed analysis o…
This paper presents a novel method for the preparation of Fe 3 O 4 /CdS nanocomposites via a sonochemical route in an aqueous solution. The products were characterized by powder X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray analysis, UV/vis absorption, fluor…
The structure of binary aluminosilicate glasses containing 60-67 mol % Al2O3 were investigated using high-resolution 27Al NMR and X-ray and neutron diffraction. The glasses were made by aerodynamic levitation of molten oxides. The 67% alumina composition required a cooling rate of approximately 1600 degrees C s(1-) to…
This paper presents a thorough simulation and experimental evaluation of the concentration control approach for batch and semibatch crystallization. The sensitivity of concentration feedback control is assessed in the case of various disturbances that result in excessive nucleation events. The enhanced robustness of t…
We present a simple and universal technique for assembling gold nanorods (NRs) using self-assembled stacks of lyotropic chromonic materials, without covalent bonding between NRs and the linking agent. The anisotropic electrostatic interaction between the chromonic stacks and NRs allows one to achieve either side-by-si…
Nanocrystalline manganite La 0.50 Ba 0.50 MnO 3 was synthesized by the soft-chemical method. For this purpose, the sol-gel method was modified and improved. A trihydric saturated alcohol, e.g., glycerol, was suggested as a new organic matrix. The crystal structure of the composite was studied by X-ray powder diffracti…
Nanoparticles developed from poly(alkyl cyanoacrylate) (PACA) biodegradable polymers have opened new and exciting perspectives in the field of drug delivery due to their nearly ideal characteristics as drug carriers in connection with biomedical applications. Thanks to the direct implication of organic chemistry, poly…
A full understanding of the pharmacokinetic parameters describing nanomaterial disposition in the body would greatly facilitate development of a firm foundation upon which risk assessment could be based. This review focuses on the disposition of carbon based fullerenes and nanotubes, as well as quantum dots (QD) after…