Materials Literature
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The photofission cross section of ${}^{238}$U was measured at sub-barrier energies as a function of the $\ensuremath{\gamma}$-ray energy using a monochromatic, high-brilliance, Compton-backscattered $\ensuremath{\gamma}$-ray beam. The experiment was performed at the High Intensity $\ensuremath{\gamma}$-ray Source (HI$…
Combining simulation and experiment, we demonstrate that a metal nanoparticle dimer on a gold film substrate can confine more energy in the particle/film gap because of the hybridization of the dimer resonant lever and the continuous state of the film. The hybridization may even make the electric field enhancement in…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Cari S. Dutcher, Susan J. Muller; Effects of moderate elasticity on the stability of co- and coun…
Molecular dynamics simulations have been used to study the microjet from a grooved aluminium surface under shock loading. Plastic deformation and release melting during microjetting are both presented by the centrosymmetry parameter, where the effect of release melting is discussed in detail. Consequently, we obtain t…
In an effort toward the visualization of β-amyloid plaques by in vivo imaging techniques, we have conjugated an optimized derivative of the Pittsburgh compound B (PiB), a well-established marker of Aβ plaques, to DO3A-monoamide that is capable of forming stable, noncharged complexes with different trivalent metal ions…
Vinyl acetate [VA (CH3COOC2H3)] is an important unsaturated and oxygenated volatile organic compound responsible for atmospheric pollution. In this work, possible reaction mechanisms for the degradation of OH-initiated atmospheric oxidation of VA are investigated. The potential energy surfaces (PESs) for the reaction…
Fully periodic Hartree–Fock and density functional theory calculations have been used to compute the anisotropic displacement parameters (ADPs) of molecular crystals at different temperatures by using the CRYSTAL code. Crystalline urea was adopted as a benchmark system to investigate the dependence on basis set and Ha…
We show experimentally that the photocurrent of thin-film hydrogenated microcrystalline silicon (μc-Si:H) solar cells can be enhanced by 4.5 mA/cm2 with a plasmonic back reflector (BR). The light trapping performance is improved using plasmonic BR with broader angular scattering and lower parasitic absorption loss thr…
An optimized electrodropping system produces homogeneous core-shell microcapsules (C-S MCs) by using poly(L-lactic-co-glycolic acid) (PLGA) and alginate. Fluorescence imaging clearly shows the C-S domain in the MC. For release control, the use of high-molecular-weight PLGA (HMW 270 000) restrains the initial burst rel…
We present the very first simultaneous detection from space of a terrestrial gamma ray flash (TGF) and the optical signal from lightning. By fortuitous coincidence, two independent satellites passed less than 300 km from the thunderstorm system that produced a TGF that lasted 70 μs. Together with two independent measu…
An efficient and straightforward method for radiolabeling nanoparticles is urgently needed to understand the in vivo biodistribution of nanoparticles. Herein, we investigated a facile and highly efficient strategy to prepare radiolabeled glycol chitosan nanoparticles with (64)Cu via a strain-promoted azide-alkyne cycl…
A major limitation of solid-state dye-sensitized solar cells is a short electron diffusion length, which is due to fast recombination between electrons in the TiO 2 electron-transporting layer and holes in the 2,2′,7,7′-tetrakis( N, N -di- p -methoxyphenylamine)-9,9′-spirobifluorene (Spiro-OMeTAD) hole-transporting la…
Comparative studies on inorganic and organic electron acceptors used as p-dopants in N,N′-di(naphthalene-1-yl)-N,N′-diphenyl-benzidine (NPB) in organic light-emitting diodes (OLEDs) are carried out. It demonstrates that 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile (HAT-CN) doped hole-injecting layer is superior t…
Graphene mechanical resonators are the ultimate two-dimensional nanoelectromechanical systems (NEMS) with applications in sensing and signal processing. While initial devices have shown promising results, an ideal graphene NEMS resonator should be strain engineered, clamped at the edge without trapping gas underneath,…
19 in 19: A convergent total synthesis of 19-hydroxysarmentogenin has been achieved, starting from three simple fragments. The desired product was synthesized in 19 steps from the AB ring system with the installation of six stereocenters and the formation of three CC bonds.
Abstract In this review, we discuss recent developments in the use of low-temperature fluorination routes for the topochemical modification of mixed metal oxide compounds. By applying such methods, material properties (such as magnetism, superconductivity, electrical conductivity, and ionic conductivity) can be tuned…
Abstract Aromatic polythiourea (ArPTU) is an amorphous, polar, glass‐phase dielectric polymer which features extremely high dielectric breakdown strength (>1.1 GV/m), low loss at high electric fields (10% at 1.1 GV/m), and a high maximum electrical energy density (>24 J/cm3). This work presents a study of the structur…
The use of localized surface plasmons (LSPs) for highly sensitive biosensors has already been investigated, and they are currently being applied for the optical manipulation of small nanoparticles. The objective of this work was the optical trapping of λ-DNA on a metallic nanostructure with femtosecond-pulsed (fs) las…
The ultimate energy storage performance of an electrostatic capacitor is determined by the dielectric characteristics of the material separating its conductive electrodes. Polymers are commonly employed due to their processability and high breakdown strength; however, demands for higher energy storage have encouraged…
A facile one-pot synthesis of Ag@Fe2 O3 core-shell and Ag-Fe2 O3 heteromer nanoparticles is developed, and the core-shell nanoparticles show superior antibacterial properties compared to their heteromer counterparts and plain Ag nanoparticles. The mechanism for the increased efficiency is proposed to be due to the enh…