Materials Literature
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Delivery of nanoparticles to tumors is limited by vascular permeability and intratumoral diffusion. In this issue of ACS Nano, Jiang et al. show that the manipulation of tumor physiology using antiangiogenic therapy can improve the tumor penetration of quantum dots with 20 and 40 nm hydrodynamic diameters. This Perspe…
Silver is one of the most important materials in plasmonics. Tuning the size of various silver nanostructures has been actively pursued in the last decade. However, silver nanobelt, a typical one-dimensional silver nanostructure, has not been systematically studied as to tuning its size for controllable plasmonic resp…
Electron-beam-induced deposition (EBID) is a direct-write chemical vapor deposition technique in which an electron beam is used for precursor dissociation. Here we show that Arrhenius analysis of the deposition rates of nanostructures grown by EBID can be used to deduce the diffusion energies and corresponding preexpo…
We present numerical results from phase-field simulations of the buoyancy-driven detachment of an isolated, wall-bound pendant emulsion droplet acted upon by surface tension and wall-normal buoyancy forces alone. Our theoretical approach follows a diffuse-interface model for partially miscible binary mixtures which ha…
Purpose – The purpose of this paper is to study a new method to appraise pressure comfort through displacement distribution, and then explore the relationship between pressure and stiffness coefficient, and elastic elongation of the top part of men’s socks using finite element method. Design/methodology/approach – Thr…
The corrosion inhibition efficiency of ketosulfide was investigated by electrochemical methods in 1 M HCl solution at 303–333 K. The polarization method showed mixed-type inhibition characteristics of ketosulfide. Adsorption behavior of ketosulfide was studied and which followed the Langmuir adsorption isotherm. Therm…
Heat generation due to losses restricts piezoelectric materials from maintaining a high power density, which will further limit the miniaturization of piezoelectric devices. As an evaluation index of the loss level, the mechanical quality factor shows an opposite tendency with losses. The mechanical quality factor sho…
We study the electronic instabilities of doped bilayer silicene using the random phase approximation. In contrast to the singlet $d+i{d}^{\ensuremath{'}}$ superconductivity at the low doping region, we find that the system is an itinerant ferromagnet in the narrow doping regions around the Van Hove singularities, and…
Gold nanoparticle (AuNP) network structures featuring particles from the two-phase Brust-Schiffrin synthesis and linear RAFT oligomers of styrene with two and multiple trithiocarbonate (TTC) groups along their backbone have been investigated in detail. Insights into the internal structures of these particle networks c…
In this study, the influences of the adsorption of water molecules on the changes in the atomic and electric structures of BaTiO3 surface were investigated using ab initio calculation. Water molecules are molecularly and dissociatively adsorbed on the BaTiO3 surface, which makes electrons transfer from water molecules…
We derive the frequency-resolved heat current expression in the linear-response regime for a setup composed of a reservoir, an interacting central site, and a tunneling barrier under the action of a time-dependent electrical signal. We exploit the frequency parity properties of response functions to obtain the heat cu…
We present a systematic experimental study along with theoretical modeling of the energy transfer in an ensemble of closely packed CdTe colloidal nanocrystals identified as the F\"orster resonant energy transfer (FRET). We prove that at low temperature of 4.2 K, mainly the ground dark exciton states in the initially e…
A cross-linked rubber model with different cross-linking densities was created using the bead-spring model, and a uniaxial elongation simulation was conducted to evaluate the strain rate dependence of tensile stress. To evaluate the effect, the relaxation rate, which is calculated from Rouse relaxation time using the…
A new lithium-niobate (LiNbO3)-type polar compound, namely, ZnPbO3 (a = 5.41605(7) Å and c = 14.33151(3) Å), with closed-shell ions only was synthesized under high pressure and high temperature (8 GPa and 1273 K). A point-charge-model calculation based on atomic positions refined by Rietveld analysis of synchrotron X-…
The binding strength of dispersants to the surface of carbon nanotubes is of crucial importance for the efficiency of the dispersion process and for potential applications, yet data are scarce on this subject. Here we present the results of diffusion NMR experiments in dispersions of single-walled carbon nanotubes (SW…
Abstract For the first time a Pd catalyst for the direct synthesis (DS) of H 2 O 2 from H 2 and O 2 was investigated using in situ Pd K‐edge X‐ray absorption fine structure spectroscopy. The catalyst was loaded into a continuous reaction cell and fed at room temperature and pressure with a mixture of CO 2 , O 2 , H 2…
Ultraviolet Raman spectroscopy revealed the existence of an unusual large-frequency shift occurring to a nonsoft mode of $E({\mathrm{TO}}_{4}$) when ${\mathrm{BaTiO}}_{3}$ is strained to a ${\mathrm{SrTiO}}_{3}$ substrate [D. Tenne et al., Science 313, 1614 (2006)]. It raised two interesting questions: (i) whether the…
Ceramic type coatings on metallic implants, such as calcium phosphate (Ca-P), are generally stiff and brittle, potentially leading to the early failure of the bone-implant interface. To reduce material brittleness, polyacrylic acid and carboxymethyl cellulose were used in this study to deposit two types of novel Ca-P/…
ABSTRACT Two ester derivatives featuring anthraquinone as an interior core and terminal electroactive triphenylamine or carbazole groups were prepared by the condensation of 2,6‐dihydroxyanthraquinone with 4‐(diphenylamino)benzoyl chloride and 4‐(9H‐carbazol‐9‐yl)benzoyl chloride, respectively. The electrochemistry an…
A systematic study of epitaxially grown Sr2FeMoO6 thin films on SrTiO3, (LaAlO3)0.3(Sr2AlTaO6)0.7, SrLaAlO4 and MgO single crystal substrates were made. Transmission electron microscopy investigations showed sharp substrate/films interfaces and increased defect concentration with increased lattice mismatch, indicating…