Materials Literature
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We have systematically measured the room-temperature thermal conductivity of epitaxial layers of InxGa1−xN alloys with 15 different Indium compositions ranging from 0.08 to 0.98 by time-domain thermoreflectance method. The data are compared to the estimates of the strength of phonon scattering by cation disorder. The…
Abstract Desymmetrization self-assembly of symmetric building blocks is a powerful method to construct elaborate metallosupramolecular architectures. Herein several examples are given to discuss how to build up self-assembled complexes with low symmetry, focusing on 1) stabilization of local structural motifs by templ…
Getting to the TOP of things: The coordination of tri-n-octylphosphine (TOP) instead of diphenylphosphine (DPP) to cadmium oleate (Cd(OA)2) reveals how tertiary and secondary phosphines enhance the yield and reproducibility of the synthesis of nanocrystals by shifting the equilibrium of the reaction to the right (see…
We studied the experimental Raman spectra of various commercial silica nanoparticles of average diameter from 7 to 40 nm and specific surface from 50 to 380 m2/g. We found that the peculiarities of the particles Raman spectra systematically depend on their specific surface. In detail, the peak position of the R band a…
Li co-doped ZnO:Co (Zn0.96-yCo0.04LiyO , y ≤ 0.1) nanoparticles were synthesized by the sol-gel technique and the correlation between the structural, electronic and magnetic properties was investigated. All the samples show a single phase hexagonal (wurtzite) ZnO structure and no secondary phases were detected. Variat…
Quantum dots (QDs) have attracted increasing interest in bioimaging and sensing. Here, we report a biosensor of complex I using ubiquinone-terminated disulphides with different alkyl spacers (QnNS, n = 2, 5 and 10) as surface-capping ligands to functionalise CdSe/ZnS QDs. The enhancement or quenching of the QD bioconj…
The effect of dimensional confinement on the optical band gap of SrTiO3 is investigated by periodically introducing one extra SrO monolayer every n SrTiO3 layers. The result is the n = 1–5 and 10 members of the Srn+1TinO3n+1 Ruddlesden-Popper homologous series. Spectroscopic ellipsometry, optical transmission, and cat…
We study the structure of binary monolayers of large ($3\text{ }\text{ }\ensuremath{\mu}\mathrm{m}$ diameter) very hydrophobic ($A$) and large ($3\text{ }\text{ }\ensuremath{\mu}\mathrm{m}$ diameter) hydrophilic ($B$) or small ($1\text{ }\text{ }\ensuremath{\mu}\mathrm{m}$ diameter) hydrophilic ($C$) silica particles…
Abstract SnO2‐based catalysts modified by La, Ce, and Y with a Sn/Ln (Ln=La, Ce, Y) atomic ratio of 2:1 were prepared by using a co‐precipitation method and used for CO and CH4 oxidation. The catalysts were characterized by N2 adsorption–desorption, XRD, energy dispersive X‐ray spectroscopy (EDS)‐SEM, H2 temperature‐p…
The magnetic property of the LaMnO3−δ films was systematically investigated with the variation of the deposited oxygen pressure. The Curie temperature and the saturation magnetization of the films were found increased with the decrease of the oxygen pressure. We believe that the double exchange effect between Mn2+ and…
We demonstrate a flat polymeric lenticular microlens array using a mixture of rod-like diacrylate monomer and positive dielectric anisotropy nematic liquid crystal (LC). To create gradient refractive index profile in one microlens, we generate fringing fields from a planar top electrode and two striped bottom electrod…
Most standard models for the thermal boundary conductance (TBC) assume isotropic properties and thus are inappropriate for layered and chainlike materials such as graphite, Bi${}_{2}$Te${}_{3}$, and high-density polyethylene (HDPE). To model such anisotropic materials, here a framework is introduced whereby the first…
Ferroelectric and ferroelastic domain structure has a profound effect on the piezoelectric, ferroelectric, and dielectric responses of ferroelectric materials. However, domain walls and strain field effects on thermal properties are unknown. We measured the thermal conductance from 100–400 K of epitaxially grown BiFeO…
We investigate optical transitions of noninteracting electron systems consisting of two symmetric energy bands touching each other at the Fermi energy (e.g., graphene at half-filling). Optical conductivity is obtained using Kubo formula at zero temperature. We show that for particles whose pseudospin direction is dete…
The low power factor (PF) of BiCuSeO oxyselenide inhibits further improvement on thermoelectric figure of merit in the moderate temperature range. In this Letter, we show that the electron transport properties of doped BiCuSeO oxyselenide can be accurately described in acoustic phonon scattering assumption within the…
We present an economical, facile and effective microwave pyrolysis approach to synthesize highly amino-functionalized fluorescent carbon nitride dots (CNDs). The formation and the functionalization of CNDs was accomplished simultaneously through the dehydration of chitosan. It is suggested that these CNDs have good wa…
RATIONALE: Smooth muscle cells (SMCs) are a key component of tissue-engineered vessels. However, the sources by which they can be isolated are limited. OBJECTIVE: We hypothesized that a large number of SMCs could be obtained by direct reprogramming of fibroblasts, that is, direct differentiation of specific cell linea…
A one-step, eco-friendly strategy is developed to prepare sulfur/reduced graphene oxide nanohybrid (SRGO) (sulfur nanoparticles of average size ∼20 nm) using the combined effect of the polyphenolic compounds and acids present in Citrus limon juice. The prepared nanohybrid is characterized with Fourier transform infrar…
The toxicological profile of gold nanoparticles (AuNPs) remains controversial. Significant efforts to develop surface coatings to improve biocompatibility have been carried out. In vivo biodistribution studies have shown that the liver is a target for AuNPs accumulation. Therefore, we investigated the effects induced…
We applied UV-Vis absorption spectroscopy to investigate the interaction among amino acids (Tyrosin, Glutamic acid, Histidin, and Isoleusin) as biological molecules and single-walled carbon nanotubes (SWCNTs) as biological deliver to mean Bio-nano interaction for using in drug design. Spectral features were recognized…