Materials Literature
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Using self-assembled CdS QDs as signal amplification labels, an ultrasensitive AFS method was bridged to DNA detection, with an impressive limit of detection of 0.8 aM.
With rapid development of novel nanomaterials (NMs), the state of the art technologies with high efficiency and high-throughput characteristics had been applied for nanosafety evaluation. High-content screening (HCS), a cell-based multi-parametric image analysis technique, was adopted in the evaluation of eight differ…
CO adsorption onto Pt- and Pt-based catalysts is a very relevant topic in electrocatalysis, and in particular, in fuel cells research. CO is known to be the main responsible of the poisoning of the catalysts and consequent decrease on performance of the fuel cells devices. In this paper, density functional theory (DFT…
Using ionic liquids as controlling agents is known to effectively affect the morphologies of TiO 2 crystals. To obtain a profound understanding of this observation, density functional theory calculations with inclusion of Grimme treatment of the dispersion forces (DFT+ D ) have been performed to study a typical ionic…
An experimental investigation was conducted into a micro-sized droplet jetted onto a surface with sharp wettability contrast. The dynamics of micro-sized droplet impingement on a sharp wettability contrast surface, which is critical in inkjet printing technology, has not been investigated in the literature. Hydrophili…
The properties of a critical nucleus are derived using the capillarity theory in the framework of classical nucleation. An analytical solution for the composition of a critical nucleus is given for low supersaturation. The theory is valid for any multicomponent systems. It is found that the deviation in nucleus compos…
Ectopic ossification of mesenchymal stem cell (MSC) regenerated cartilage has greatly restricted its application in repairing subcutaneous cartilage defects (such as nasal or auricular). Different from MSCs, chondrocytes can maintain stable chondrogenic phenotype in ectopic microenvironment, which was speculated to be…
One-dimensional (1D) semiconductor metal oxide nanostructures have attracted increasing attention in electrochemistry, optics, magnetic, and gas sensing fields for the good properties. N-type low dimensional semiconducting oxides such as SnO2 and ZnO have been known for the detection of inflammable or toxic gases. In…
A pretreated kapok fiber (PKF) with a hollow tube structure was introduced into a poly(sodium acrylate) network by a simultaneous free-radical graft copolymerization and crosslinking reaction to fabricate a novel kapok fiber-g-poly(sodium acrylate) (PNaA/PKF) superabsorbent composite. The network characteristics and s…
Rare earth doping is widely used to improve the desired properties of high-k dielectric oxides. However, whether rare earth doping can suppress the formation of oxygen vacancies is still debated. By using the first-principles calculations with the generalized gradient approximation and more advanced hybrid functional,…
Spin pumping at the ferromagnetic metal (Fe)/normal metal (Au) interface and the subsequent spin transport in Au/Pd heterostructures is studied using ferromagnetic resonance. The spin pumping induced damping in the Fe/Pd structure is greatly suppressed by the addition of a Au spacer layer in the structure Fe/Au/Pd. Th…
Pressure-induced valence change and semiconductor–metal transition were revealed in perovskite compound PbCrO 3 by X-ray absorption spectroscopy (XAS) and resistance measurements, respectively. The Cr L 2,3 edge XAS spectra indicate a charge disproportionation of Cr (3Cr 4+ → 2Cr 3+ + Cr 6+ ) at ambient pressure, sugg…
Recently, carbon nanotubes (CNTs) have been attracted to reinforcement of composite materials due to their extraordinary mechanical, thermal and electrical properties. Many researchers have attempted to develop CNT reinforced metal composites with various fabrication methods and have shown possibilities for structural…
Cogasification of high‐calorific‐value plastics with biomass can effectively improve the quality of gas production and utilize plastic waste as a resource. In this study, the gasification characteristics of rice straw with three types of typical plastics in a carbon dioxide (CO2) atmosphere were evaluated, and the rel…
One of the important issues of concerns for gas-insulated switchgear (GIS) is the generation of very fast transient overvoltage (VFTO) during switching operations, especially at operational voltage levels of 330 kV and beyond. It becomes extremely important to build an arc model for VFTO simulation, since the arc dete…
In the field of monosilicon crystal growth, the Czochralski (CZ) as well as the floating zone (FZ) method have grown to a mature technology over the last 60 years and, until today, the costs have been continuously reduced. The cost driving factors for CZ and FZ are reviewed with respect to further potential improvemen…
Presented here is the synthesis of an ordered bcc copper-palladium nanoalloy, via the decomposition of a Pd nanoparticle@metal-organic framework composite material. In situ XRD measurements were performed in order to understand the mechanism of the decomposition process. This result gives a further perspective into th…
Exogenous contrast agents with high sensitivity are highly desirable for photoacoustic (PA) imaging. In this work, we show that fluorogens with aggregation induced emission (AIE) characteristics are born with strong PA signals. In addition, we find that the PA signal of conventional fluorophores could be significantly…
In this work, we demonstrate the use of manganese doped zinc selenide QDs (Mn:ZnSe d-dots) for gene delivery in vitro. Specifically, the d-dots were prepared as nanoplexes for facilitating the intracellular delivery of small interfering RNA (siRNA) molecules to pancreatic cancer cells (Panc-1), thereby inducing sequen…
This study investigates the influence of ultrasonic nanocrystal surface modification (UNSM), a novel surface treatment technology, on the mechanical characteristics and rotary bending fatigue performance of solution-treated and annealed (STA) Ti-6Al-4V and Ti-6AI-4V extra low interstitial (ELI) alloys. Various techniq…