Materials Literature
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In the present study we characterized the microstructures of the Lc and HII phases in a glycerol monooleate (GMO)/tricaprylin (TAG)/water mixture as a function of temperature. We studied the factors that govern the formation of a low-viscosity HII phase at relatively elevated temperatures (>35 degrees C). This phase h…
Abstract A convergent approach for the incorporation of arylphosphonate moieties into the cyclotriphosphazene unit is described. The synthesis is based on the reaction of hexachlorocyclotriphosphazene with diethyl 4‐hydroxyphenylphosphonate in the presence of anhydrous potassium carbonate. This reaction is characteris…
Novel tert-alkoxysilanetriols (ROSi(OH)(3), R=adamantyl and 3-ethyl-3-pentyl) have been prepared from the corresponding tert-alkoxytrichlorosilanes and successfully used as molecular building blocks to produce ordered siloxane-based nanomaterials. Controlled hydrolysis of the alkoxytrichlorosilanes led to the formatio…
The fabrication of enhanced hydrophobic surfaces via simple and inexpensive means will be discussed. Regular arrays of microscale pores were prepared in polymer matrices via the spontaneous assembly of water-vapor condensation, the so-called breath figure method. Using these regular arrays of pores as templates, the a…
Abstract [Fe(btr) 2 (NCS) 2 ] · H 2 O [btr = 4,4′‐bis(1,2,4‐triazole)] is thearchetype of highly cooperative and low‐dimensional spin‐crossover complexes, which exhibit low‐spin (LS) to high‐spin (HS) light‐induced conversion at very low temperature. The structural reorganizations related to the light‐induced and ther…
We proposed a general route to MoS 2 hierarchical hollow cages, in which abundant hollow cages with various well-defined, novel geometrical morphologies were fabricated via a self-assembly coupled with surfactant/molybdate composite precursor crystal templating process based on the Kirkendall Effect. The in situ forme…
Inspired by recent work describing surfactant-like peptides, we have carried out a systematic study on peptides with the underlying composition of V6D2, altering the absolute sequence to determine the importance of the surfactant-like structure. All of the peptides examined here formed self-assembled structures in wat…
Microstructural properties, phase transitions, and charge ordering of $\mathrm{Lu}{\mathrm{Fe}}_{2}{\mathrm{O}}_{4}$ have been extensively investigated by means of transmission electron microscopy (TEM) in a large temperature range from $20\phantom{\rule{0.3em}{0ex}}\text{to}\phantom{\rule{0.3em}{0ex}}550\phantom{\rul…
The phosphates α-Sr(PO 3 ) 2, SrZn(P 2 O 7 ), and α-Sr 2 (P 2 O 7 ) were doped and codoped with Eu 2+ and Mn 2+, structurally characterized, and analyzed by fluorescence spectroscopy. α-Sr(PO 3 ) 2 was found to enable the energy transfer between Eu 2+ and Mn 2+, leading to a new phosphor emitting at 404 and 625 nm and…
Product yields and selectivities, based on ultrahigh vacuum temperature-programmed desorption, are compared for 10 C 2 to C 8 aliphatic alcohols dosed at 100 K on highly ordered TiO 2 (110) with a 3.5% concentration of surface oxygen vacancies. Dehydration to form an alkene and water typically dominates, while two oth…
Out of nowhere: Significant photoinduced changes in ferromagnetism have been observed at the interfaces between gold nanoparticles (Au NPs) and azobenzene-derivatized thiols. These photomagnetic effects could be attributed to photoinduced changes in d-charge losses resulting from the photoisomerization of the azo liga…
A new all-organic mesoporous cross-linked polymer (MCP-1) has been synthesized hydrothermally through in situ aqueous-phase radical polymerization of acrylic acid in the presence of a supramolecular assembly of cationic surfactant cetyltrimethylammonium bromide (CTAB) as the structure-directing agent (SDA) and N, N -m…
ZnO powder heat treated in $\mathrm{N}{\mathrm{H}}_{3}$ atmosphere was investigated by electron paramagnetic resonance, photoluminescence, and Raman spectroscopy. We find that the treatment creates Zn interstitials (${\mathrm{Zn}}_{i}$) and complexes of Zn interstitials and nitrogen atoms substituting oxygen $({\mathr…
We report the direct visualization at the scale of single particles of mass transport between smectic layers, also called permeation, in a suspension of rodlike viruses. Self-diffusion takes place preferentially in the direction normal to the smectic layers, and occurs by quasiquantized steps of one rod length. The di…
Type I collagen is a major component of skin, tendon, and ligament and forms more than 90% of bone mass. It is an AAB heterotrimer assembled from two identical alpha1 and one alpha2 chains. However, the majority of studies on the effects of amino acid substitution on triple helix stability have been performed on colla…
Two new highly stable electrochromic polymers, poly(5,8-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-2,3-di(thiophen-2-yl)quinoxaline) (PDETQ) and poly(5,8-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)quinoxaline) (PDEQ) were synthesized, and their potential use as neutral state green polymeric materials was investig…
We introduce a variation of the dissipative particle dynamics (DPD) thermostat that allows for controlling transport properties of molecular fluids. The standard DPD thermostat acts only on a relative velocity along the interatomic axis. Our extension includes the damping of the perpendicular components of the relativ…
Magnetic resonance imaging (MRI) permits noninvasive three-dimensional imaging of opaque organisms. Gadolinium (Gd(3+)) complexes have become important imaging tools as MRI contrast agents for MRI studies, though most of them are nonspecific and report solely on anatomy. Recently, MRI contrast agents have been reporte…
The design of new quasi-2D biocompatible films able to release a drug in a controlled manner through the application of physical stimuli is of outstanding interest in biomaterials science. Herein, construction of composite nanofilms with multiple strata of stabilized large unilamellar liposomes is developed. The film…
The selenophosphates A2P2Se6 (A = K, Rb) crystallize in the chiral trigonal space group P3121, with a = 7.2728(9) A, c = 18.872(4) A, and Z = 3 at 298(2) K and a = 14.4916(7) A, c = 18.7999(17) A, and Z = 12 at 173(2) K for K+ salt and a = 7.2982(5) A, c = 19.0019(16) A, and Z = 3 at 100(2) K for Rb+ salt. The A2P2Se6…