Materials Literature
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We studied the structural properties of (Ge+SiO2)/SiO2 multilayer films, especially the influence of the deposition temperature and the parameters of subsequent annealing on the formation and spatial correlation of Ge quantum dots in an amorphous silica matrix. We showed that in-layer and inter-layer spatial correlati…
Abstract In this investigation, expandable graphite was functionalized using a coupling agent to produce covalent bonds between the organic and inorganic phases, enhancing the thermal stability of the composites. The modified expandable graphite had an OEt function group that reacted with methyl methacrylate‐ co ‐3‐(…
In this paper, the synthesized surfactant of copper dodecyl sulfate (Cu(DS)2) was used as a special metal-ion source for the morphological control of copper oxide (CuO) architectures. During the fabrication processes, the ribbon-shaped intermediates of basic copper salt with lamellar structures were observed at 60.0 d…
The cyclodextrin (CD) molecule, a host for a variety of smaller molecular guests, and hyperbranched polymers both possess molecule cavities in their molecular architectures. If the hyperbranched poly(β - cyclodextrin)s are established using modified β-CD molecules as monomers, their molecular inclusion capabilities fo…
Ultrafast pump-probe magneto-optical spectroscopy is used to study coherent spin dynamics in ferromagnetic semiconductor ${\text{Ga}}_{1\ensuremath{-}x}{\text{Mn}}_{x}\text{As}$ systems at excitation photon energies ${E}_{\text{ph}}$ both above and below the band gap ${E}_{\text{g}}$ of GaAs. Above ${E}_{\text{g}}$, t…
Collagen is an important component of the extracellular matrix (ECM) and plays an important role in normal tissue maturation and in pathological processes such as atherosclerosis and myocardial infarction. The diagnostics of the latter diseases using MRI could strongly benefit from the use of collagen-specific contras…
Abstract The performance of a model Pt/BaO/Al 2 O 3 monolith catalyst was studied using H 2 as the reductant. The dependence of product selectivities on operating parameters is reported, including the durations of regeneration and storage times, feed composition and temperature, and monolith temperature. The data are…
A series of simple fluorescent polymers were readily synthesized by palladium-catalyzed Suzuki coupling reactions of dibromoterephthalates containing the small methyl and large cholesteryl esters with bisboronic esters derived from alkylated fluorene and N -hexyldiphenylamine. The polymers had an inherent viscosity ra…
A high-quality polycrystalline sample of the correlated 4d post-perovskite CaRhO(3) (Rh(4+): 4d(5), S(el) = 1/2) was attained under a moderate pressure of 6 GPa. Since the post-perovskite is quenchable at ambient pressure/temperature, it can be a valuable analogue of the post-perovskite MgSiO(3) (stable higher than 12…
A novel class of linear arylamide oligomers has been designed and synthesized from naphthalene-2,7-diamine and benzene-1,3,5-tricarboxylic acid segments. The molecules carry two (tert-butoxycarbonylamino) groups at the ends and one to three hydrophilic N,N-bis(2-(2-(2-methoxyethoxy)ethoxy)ethyl)amino groups at one sid…
Boron nitride (BN) microtubes were synthesized in a vertical induction furnace using Li(2)CO(3) and B reactants. Their structures and morphologies were investigated using x-ray diffraction, scanning and transmission electron microscopy, and energy-dispersive x-ray spectroscopy. The microtubes have diameters of 1-3 mic…
Energy transfer in monolayers of CdTe quantum dots (QDs), comprised of QDs of two different sizes, has been investigated. Förster resonant energy transfer (FRET) from QD donors to QD acceptors was observed and characterized using absorption and photoluminescence spectroscopy, as well as time-resolved photoluminescence…
This study reports experimental measurements of the water contact angle (WCA) measured on surfaces with grooves of different widths using drop volumes ranging from 400 pL to 4.5 microL. These measurements were carried out on both relatively hydrophobic and hydrophilic surface chemistry formed using a conformal plasma…
Fluorescence correlation spectroscopy (FCS) is a popular technique, complementary to cell imaging for the investigation of dynamic processes in living cells. Based on fluorescence, this single molecule method suffers from artifacts originating from the poor fluorophore photophysics: photobleaching, blinking, and satur…
A three-dimensional mixed-valent iron(II,III) trans-1,4-cyclohexanedicarboxylate, 1,4-chdc, coordination polymer, [Fe(II)Fe(III)(mu(4)-O)(1,4-chdc)(1.5)](infinity), 1, has been synthesized hydrothermally by mixing iron powder and 1,4-chdcH(2) and investigated by X-ray diffraction, dc and ac magnetic susceptibility, an…
Based on enantiopure S- or R-(1-phenylethylamino)methylphosphonic acid (pempH(2)), homochiral lanthanide phosphonates (S)-[Ln(pempH)(NO(3))(2)(H(2)O)(2)] (S-Ln) and (R)-[Ln(pempH)(NO(3))(2)(H(2)O)(2)] (R-Ln) (Ln = Eu, Tb, Ho) are obtained successfully. All six compounds are isostructural, showing chiral brick-wall-sha…
Enriching peptides: Novel TiO(2)-modified macroporous materials (Ti-MOSF, see figure) have been synthesized with high surface area, large pore volume, and functional surfaces that are rich in coordinatively unsaturated Ti(IV) species, which can be applied in the specific extraction of phosphopeptides and which show a…
We investigate self-assembly of nanocomposite films composed of lamellar-forming poly(styrene- b -methyl methacrylate) (PS- b -PMMA) and PMMA-grafted magnetite (Fe 3 O 4 ) nanoparticles (NPs). The Fe 3 O 4 NPs are grafted with PMMA brushes with molecular weights ranging from 2700 to 35 700 g/mol. For the NP with the l…
The triarylborane acceptor in poly[9-((4-dimesitylboryl)-3,5-dimethylphenyl)-9 H -carbazole]-3,6-diyl P2 has a strong impact on the optical properties of this 3,6-linked carbazole main chain polymer and results in an enhanced fluorescence quantum yield because of a low-lying fluorescent CT state. In contrast, the same…
Hydrothermal reactions of lanthanide oxide, lead chloride, I(2)O(5), and H(2)O at 200 degrees C led to four novel quaternary compounds, namely, Ln(3)Pb(3)(IO(3))(13)(mu(3)-O) (Ln = La-Nd). They are isostructural, and their structures feature a complicated 3D network composed of LaO(9) and PbO(6) polyhedra interconnect…