Materials Literature
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Success in isolating a 2D graphene sheet from bulky graphite has triggered intensive studies of its physical properties as well as its application in devices. Graphite intercalation compounds (GICs) have provided a platform of exotic quantum phenomena such as superconductivity, but it is unclear whether such intercala…
In an era of increased cardiovascular disease burden in the ageing population, there is great demand for devices that come in to contact with the blood such as heart valves, stents, and bypass grafts that offer life saving treatments. Nitric oxide (NO) elution from healthy endothelial tissue that lines the vessels mai…
Large-scale, uniform, vertically standing graphene with atomically thin edges are controllably synthesized on copper foil using a microwave-plasma chemical vapor deposition system. A growth mechanism for this system is proposed. This film shows excellent field-emission properties, with low turn-on field of 1.3 V μm(-1…
We report a two-dimensional tetragonal Titanium Carbide (TiC) monolayer sheet with distinguished structure and properties based on comprehensive first-principles calculations. The TiC sheet exhibits a novel zigzag-shaped buckling structure with all atoms being quasiplanar tetracoordinate, as favored by strong in-plane…
As systemically used therapeutics for treating acute or chronic pains or inflammations, nonsteroidal anti-inflammatory drugs (NSAIDs) also associate with the adverse gastrointestinal and renal effects and cardiovascular risks. Thus, it is beneficial to develop topical gels that selectively inhibit cyclooxygenase-2 (CO…
Fluorescent proteins (FPs) are widely used as optical sensors, whereas other light-absorbing domains have been used for optical control of protein localization or activity. Here, we describe light-dependent dissociation and association in a mutant of the photochromic FP Dronpa, and we used it to control protein activi…
The specific absorption rate (SAR) of γ-Fe 2 O 3 nanoparticles (NPs) under an alternating magnetic field has been investigated as a function of size, concentration, coating, liquid carrier, and frequency and amplitude of the applied magnetic field. The NPs have been synthesized by coprecipitation method with sizes ran…
Block copolymers (BCPs) must necessarily have high interaction parameters (χ), a fundamental measure of block incompatibility, to self-assemble into sub-10-nanometer features. Unfortunately, a high χ often results from blocks that have disparate interfacial energies, which makes the formation of useful thin-film domai…
Extensive scanning tunneling microscopy and spectroscopy experiments complemented by first-principles and parametrized tight binding calculations provide a clear answer to the existence, origin, and robustness of van Hove singularities (vHs) in twisted graphene layers. Our results are conclusive: vHs due to interlayer…
This work describes a new procedure for dynamic optimization of controllable linear time-invariant (LTI) systems. Unlike the traditional approach, which results in 2 n first-order differential equations, the method proposed here yields a set of m differential equations, whose highest order is twice the controllability…
Verbundene Quantenpunkten: Elektrische Schaltungen aus einzelnen Quantenpunkten wurden durch die Verdrahtung von atomgenau definierten Metall-Chalkogenid-Clustern mit konjugierten molekularen Anschlüssen hergestellt. Die verdrahteten Cluster können elektronisch an nanoskopische Elektroden koppeln und so eingestellt we…
The generation of charged nanoparticles was confirmed under typical conditions of the thin film deposition during the silicon chemical vapor deposition (CVD) process. To exert the electric force on these charged nanoparticles, the alternating current (ac) bias was applied to the stainless substrate holder during CVD.…
Abstract The paper evaluates the essential electrical properties—capacitance and equivalent series resistance (ESR)—of hydrocarbon‐derived electrolytes for supercapacitors using galvanostatic, constant resistance charge–discharge, cyclic voltammetry, and AC impedance measurements. The electrolytes were systematically…
The Effect of Bending on the Electrical and Optical Characteristics of Aluminum-Doped ZnO Films Deposited on Flexible Substrates, Tseng, Zong-Liang, Tsai, Yi-Chun, Wu, Sean, Juang, Yung-Der, Chu, Sheng-Yuan
We report that a narrow guided-mode resonance (GMR) filter with high-index substrate can be achieved by introducing an added layer on the substrate. For this type of GMR filter, the refractive index and thickness of the added layer are the critical parameters for the GMR effect to occur. We demonstrate that this filte…
Calix[4]arene and calix[4]arene/alkanethiol protected gold nanoparticles with narrow size distributions were synthesised and characterized with NMR, thermogravimetric analysis (TGA) and a transmission electron microscope (TEM). NMR and light scattering (LS) were used to study the complexation of the nanoparticles with…
Creating photoactive monolayers of photochromes is of considerable technological interest. This paper describes the construct of fulgimide monolayers on silicon surfaces and presents a quantitative IR analysis studies of their composition and switching properties. The scheme on top shows the structure of the starting…
Single- and double-wall carbon nanotubes (CNTs) having dimethylanilino (DMA) units covalently attached to the external graphene wall have been prepared by the reaction of the dimethylaminophenylnitronium ion with the corresponding CNT. The samples have been characterized by Raman and XPS spectroscopies, thermogravimet…
Redox transitions and superior pseudocapacitance are two typical characteristics in the electrochemical behavior of metallic Mo (with surface Mo oxides) and bulk Mo oxides; both of which were attributed to the participation of H + /cations. The effects of different electrolyte anions (Cl − , SO 4 2− and ClO 4 − ) on r…
Ein markierungsfreies und zurücksetzbares kolorimetrisches Logiknetz baut auf thermisch regenerierbaren Cerdioxidnanopartikeln und biokatalytischen Reaktionen auf. Die Kopplung schaltbarer CeO2-Nanopartikel mit biologischen Recheneinheiten könnte molekulare Erkennungsereignisse in kolorimetrische Signale umwandeln und…