Materials Literature
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The catalytic (C) subunit of protein kinase A is regulated in part by cotranslational N-myristylation and ligand binding. Using a combination of time-resolved fluorescence anisotropy and molecular dynamics (MD) simulations, we characterized the effect of N-myristylation and ligand binding on C-subunit dynamics. Five s…
The hydrogenation behavior of the Zintl phases MGa2 (M = Sr, Eu, Yb) was investigated. Upon being heated under 50 bar of hydrogen gas pressure, SrGa2 starts forming the polyanionic hydride SrGa2H2 at 125 °C as observed by in situ differential scanning calorimetry (DSC) and ex situ X-ray powder diffraction. The deutera…
A multitude of characterization techniques that can be applied across a wide range of length scales and to a variety of materials are available on modern scanning transmission electron microscopes (STEM). In 2011, such an instrument was installed at the University of Illinois at Chicago: the aberration‐corrected cold‐…
We report four experimental strategies for controlling the three-dimensional arrangement of molecules in multicomponent organic crystals, exploiting confocal Raman microspectrometry to quantify the three-dimensional spatial distributions. Specifically, we focus on controlling the distribution of two types of guest mol…
Several examples of metallic electron-doped polycyclic aromatic hydrocarbons (PAHs) molecular crystals have recently been experimentally proposed. Some of them have superconducting components, but most other details are still unknown beginning with structure and the nature of metallicity. We carried out ab initio dens…
This Letter presents a simple, efficient approach for high surface-enhanced Raman scattering by one-step controllable fabrication of hierarchical structures (nanoparticles+subwavelength ripples) on silicon substrates in silver nitrate solutions using femtosecond double pulses based on nanoscale electron dynamics contr…
Acknowledgements. Preface. Introduction. Tools and Their Proper Use. Materials and Fabricating. Drilling and Countersinking. Riveting. Bolts and Threaded Fasteners. Aircraft Plumbing. Control Cables. Electrical Wiring and Installation. Aircraft Drawings. Non-Destructive Testing (NDT) or Non-Destructive Inspection (NDI…
Using surface x-ray diffraction in combination with ab initio calculations, we demonstrate that the atomic structure of ultrathin BaTiO3 (BTO) films grown on Me(001) surfaces (Me=Fe, Pd, Pt) depends on subtle modifications of the interface chemical composition. A complete reversal of the surface termination from a BaO…
Cubane Cooler: An intermetallic cubane aggregate shows a pronounced cryogenic magnetocaloric effect (MCE). A mixed-metal [Ni2Gd2] cubane was assembled by the use of 2-(hydroxymethyl)pyridine (hmpH) as a spacer in a simple one-pot reaction. Its MCE measurement gives 34.4 J kg−1 K−1 at 4.5 K, suggesting that, apart from…
The design of self-assembling materials in the nanometer scale focuses on the fabrication of a class of organic and inorganic subcomponents that can be reliably produced on a large scale and tailored according to their vast applications for, e.g. electronics, therapeutic vectors and diagnostic imaging agent carriers,…
The right combination: Shape and composition are two important factors governing the catalytic properties of bimetallic nanocatalysts. Combining gold and palladium in a Au-core–Pd-shell structure coupled with an icosahedral morphology is shown to maximize catalytic performance for the selective oxidation of the bioren…
BiFe(1-x)Co(x)O3 and Bi0.9Sm0.1Fe(1-x)Co(x)O3 were synthesized under a high pressure of 4 GPa; 10% Sm substitution for Bi in BiFe(1-x)Co(x)O3 (x ≤ 0.20) drastically destabilized the ferroelectric BiFeO3-type structure and changed it to an antiferroelectric PbZrO3-type superstructure. In comparison, a ferroelectric BiC…
Transparent 0.9 Pb ( Mg 1/3 Nb 2/3 ) O 3 –0.1 PbTiO 3 ( PMN ‐ PT ) based ceramics were prepared by a conventional solid‐state synthesis without using a hot‐press method. The ceramics became transparent when they were sintered in an O 2 atmosphere. The optical transmission increased with decreasing diameter of the calc…
Nowadays, manufactured nano-particles of aluminum oxide (nano-alumina) have been widely used in many fields with the rapidly developed nano-technology, but their basic toxic data are scarce. It is believed that the smaller nano-particles are able to easily cross the bio-membrane and quickly reach cellular compartments…
The time-resolved photoluminescence (PL) characteristics of single CdSe/ZnS nanoparticles, embedded in a poly(methyl methacrylate) layer, is studied at room temperature. We observe a strong spectral jitter of up to 55 meV, which is correlated with a change in the observed linewidth. We evaluate this correlation effect…
Hollow hydroxy zinc phosphate nanospheres (HZnPNSs) with sizes of 30-50 nm and wall thicknesses of about 7 nm were synthesized using a template-free method through wet precipitation of Zn(NO3)2·6H2O and (NH4)2HPO4 at temperatures of 0, 10, and 20 °C. The crystal structures, morphologies, sizes and pore properties, Zn/…
OBJECTIVE: To compare the corrosion behavior of commercially available surface modified nickel titanium (NiTi) arch wires with respect to a conventional NiTi and to evaluate its association with surface characteristics. MATERIALS AND METHODS: Five types of surface modified arch wires and a conventional NiTi arch wire,…
Single‐ BiFeO 3 perovskite films onto Pt ‐coated silicon substrates have been fabricated by chemical solution deposition using a synthesis strategy based on the use of nonhazardous reagents. Different routes were tested to obtain precursors for the deposition of the films, inferring that bismuth ( III ) nitrate and ir…
We report microbially facilitated synthesis of cadmium sulfide (CdS) nanostructured particles (NP) using anaerobic, metal-reducing Thermoanaerobacter sp. The extracellular CdS crystallites were <10 nm in size with yields of ~3 g/L of growth medium/month with demonstrated reproducibility and scalability up to 24 L. Dur…
Abstract The synthesis, photophysics and photochemistry of a family of molecular switches inspired by the green fluorescent protein (GFP) chromophore is presented. These compounds can be synthesized in one step and good yields, their photophysical properties may be tuned by the substituents, solvent and wavelength of…