Materials Literature
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Under aerobic conditions, excessive illumination results in the photogeneration of reactive oxygen species (ROS) responsible for protein damage and photo-inhibition during photosynthesis. We explore the effects of nanoceria (NC), a regenerative ROS scavenger, on chloroplasts isolated from plant leaves. The addition of…
Compound dichroic polarizers using liquid crystal polymers and dichroic dyes have been studied for their variation of polarization with wavelength. Compound dichroic polarizers are composed of multilayer polarizers, where each layer has a different orientation and absorption spectrum. Several wavelength-dependent tran…
The world of carbon played only on the well-known modi cations, graphite and diamond, until the 1980s. The scenario was completely changed by the discovery of the molecular carbon allotropes, namely, fullerenes, carbon nanotubes (CNTs), graphene, carbon nanohorns, and carbon onions. Because of their exceptional behavi…
- . : Al 2 O 3 +30%TiO 2 +12,5%MoS 2 ; Al 2 O 3 +30%TiO 2 +12,5%CaF 2 . , - 10 25 .% 0,10,9 , .
Carbon-based nanomaterials (CNMs) possess special and novel properties in their speci c structure with at least one dimension in nanometer size. High surface-to-volume ratio and unique thermal, optical, mechanical, and electrical properties can be named as their main advantages. The characteristic structures of CNMs e…
We report the finding of pressure-induced elimination and reemergence of superconductivity in Rb 0.8 Fe 2− y Se 2− x Te x ( x = 0, 0.19 and 0.28) superconductors that belong to the family of A-245 superconductors (A = K, Rb, TlRb and Cs), characterized by the presence of an antiferromagnetic (AFM) long-ranged order ph…
The diffusion of metal particles into a silicon oxide layer during chemical vapor deposition causes various carbon nanotube growth modes. Here, the diffusion behavior of Co and Fe layers sandwiched between silicon oxides was investigated. The Co layer does not diffuse, while the Fe layer diffuses when annealed in Ar/H…
Incidents in the past have made scientists aware of the need for accurate methods of radionuclide analyses in order to estimate the risk to the public from released radioactivity. This book is an authoritative, up-to-date collection of research contributions presented at the 12th International Symposium on Environment…
Abstract We report here a strategy for influencing the phase and lattice of the inverse mesophases of a single branched‐linear block copolymer (BCP) in solution which does not require changing the structure of the BCP. The phase of the self‐assembled structures of the block copolymer can be controlled ranging from bil…
A layer of Al coatings was prepared on the S355 steel by arc spraying, which was conducted by anodic oxidation treatment; the morphologies, chemical element compositions and phases of Al coating, and anodic oxide layer were analyzed with field emission scanning electron microscope (FESEM), energy dispersive spectromet…
CNTs have various diameter and length size distributions. Most of them depend on their structures, which depend on the electronic properties from metallic to semiconducting. The impurity of CNTs decreases the overall yield of usable material and will interfere with most of the desired properties of CNTs. Besides that,…
The remote release of nano-objects from a container is a promising approach to transduce chemical events into an optical signal. The major challenge in the development of such a system involves the use of a suitable molecular gate that retains aggregated particles and releases them upon applying an external stimulus.…
We theoretically investigate the effect of extended line defects (ELDs) on thermal transport properties of carbon nanotubes (CNTs) using nonequilibrium Green's function method. Our study shows that the thermal conductance of CNTs with ELDs can be 25% lower than that of pristine CNTs. By extending the application of th…
A list of potential (multi-) ferroic systems is derived based on the idea that structure gradients can generate ferroic distortions. Structure gradients are restricted here to structural modulations, which are commonly observed in natural minerals. These minerals contain transition metals and are prone to Jahn-Teller…
Surface chemistry plays a relevant role in the physicochemical properties of carbon materials. It is highly inuenced by the presence of heteroatoms (mainly oxygen and nitrogen, but also phosphorus, boron, and sulfur) that may form different surface functionalities. They can be found naturally on the carbon surface, b…
A unified analytical description of the Cherenkov and complex Doppler phenomena in a simple metamaterial model is presented. It is shown that a moving monochromatic source generates radiation fields that exhibit features of both Doppler and Cherenkov effects. The theory presented explains many peculiar characteristics…
The solubility of tris(hydroxymethyl)aminomethane (TRIS) in various mass fractions of ternary solvent mixtures of water + methanol +1-propanol at 293.2 K, 298.2 K, 303.2 K, 308.2 K, and 313.2 K was measured using a laser monitoring technique. The mole fractions of water in the ternary mixtures were between 0.90 and 0.…
A new inorganic scintillator has been prepared by the assembly of thallium, zirconium, and chloride ions in a zeolite. Also, for the first time, a 4+ cation has been exchanged directly into a zeolite. From |Na 12 (H 2 O) x |[Si 12 Al 12 O 48 ]-A (zeolite LTA), |Zr 1.7 Tl 5.4 Cl 1.7 |[Si 13.5 Al 10.5 O 48 ]-A and |Zr 2…
Gold core-induced polypyrrole nanohybrids (Au–PPyNHs) were successfully synthesized via in situ chemical oxidation polymerization of pyrrole molecules, and their structure was directly confirmed and characterized by scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy…
Hemiaminal poly(ethylene glycol) (PEG)-based organogels are formulated in polymerizable solvents. The dynamic-covalent nature of the solvent-H-bonded hemiaminal crosslinks, together with the modification of the crosslinking density of the organogels allows for temperature-dependent viscoelastic control. The shape of u…