Materials Literature
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We apply high-energy proton ion-implantation to modify TiO2 nanotubes selectively at their tops. In the proton-implanted region, we observe the creation of intrinsic cocatalytic centers for photocatalytic H2-evolution. We find proton implantation to induce specific defects and a characteristic modification of the elec…
An environmentally benign and efficient hydrothermal reduction method was applied for the preparation of three-dimensional (3D) porous graphene hydrogel (GH) adsorbents. The physicochemical properties of GH granules were systematically characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), R…
The efficient delivery of bioactive compounds into cells is a major challenge in drug discovery. We report herein the development of novel methods for intracellular delivery of functional proteins (including antibodies) and native small-molecule drugs by making use of cell-penetrating poly(disulfide)s (CPDs). CPDs wer…
Curved π-conjugated molecules have attracted considerable interest because of the unique properties originating from their curved π surface. However, the synthesis of such distorted molecules requires harsh conditions, which hamper easy access to heteroatom-containing curved π systems. Here we report the synthesis of…
In this paper, the tribological behavior of nanoeutectic Fe 1.87 C 0.13 alloy and its coarse-grained-eutectic counterpart under air and vacuum was investigated. The results showed that the wear rate of both alloys was lower in air than in vacuum, and their friction coefficient was related to applied load and testing a…
A novel set of multifunctional optically active π-conjugated polymers incorporating perylenyl moieties, were designed and synthesized. Chirality transfer and amplification from chiral unit to the main-chain backbone in dilute solution was achieved, which was closely related to the stereocenter in the pendant of a π-co…
Abstract Barium ferrite micro‐/nanofibers with special morphology, nanowires with diameters of 100 nm, nanoribbons with diameters of 1 μm, and nanotubes with outer diameter of about 300 nm while inner diameter of 100 nm were successfully prepared via electrospinning using different solvents (dimethyl formamide (DMF),…
Abstract Three PEGylated derivatives of 6‐amino‐2‐[4,7,10‐tris(carboxymethyl)‐1,4,7,10‐tetrazacyclododec‐1‐yl]hexanoic acid (DOTA‐AHA) with different molecular weights were prepared and characterized. Their GdIII chelates were studied in aqueous solution through variable‐temperature 1H nuclear magnetic relaxation disp…
The main tendencies in the oxidation of the azo dye methyl orange during high-frequency ultrasonic treatment in aqueous solutions were studied. It was proven experimentally that the hydroxyl radicals formed during water sonolysis play the critical role in this process. A synergy effect was observed when the combined m…
Recent developments in the synthesis of colloidal particles allow for control over shape and inter-particle interaction. One example, among others, is the so-called “Mickey Mouse” (MM) particle for which the self-assembly properties have been previously studied yielding a stable cluster phase together with elongated,…
The objective of this study was to analyze the electrical and absorption properties of fresh cassava tubers and cassava starch at various frequencies using electric impedance spectroscopy and near-infrared spectroscopy, as well as determine the classification of the electrical parameters of both materials using the pr…
Ring opening of thiophenes containing an azo function in 2-position and subsequent dimerization through C-C coupling were observed on reaction with [Ru(acac)2 (CH3 CN)2 ] (acac=acetylacetonate) to produce two 1,3,5-hexatriene-linked redox-active azothiocarbonyl chelate systems. Interaction of the non-innocent chelate…
The aim of the present study is to obtain natural rubber-based composites with optimal conductivity at a lowest possible filler amount. For this reason, two different conductive nanoparticles—multiwall carbon nanotubes and graphene—have been used at different amounts. The dynamic and dielectric properties of the rubbe…
Susceptibility to interact with trifluoroacetic acid (TFA) of selected free-base porphyrins, including a novel lipophilic 3-n-pentadecyl(phenoxy)-ethoxy-phenyl-substituted porphyrin, and photostability of their diprotonated compounds was explored in benzene and N,N-dimethylformamide (DMF). Results have been discussed…
Alternating layers of organic and oxide thin films used as diffusion barriers in emerging flexible device technologies are vulnerable to degradation under the influence of mechanical stresses, temperature cycling, photodegradation, and chemically active environmental species. Delamination of the internal organic to ox…
Abstract
Density functional theory has been applied to elucidate the stability of thorium monoxide (ThO). It is found out that the pressure can stabilize the rocksalt phase of ThO, and the transition pressure is estimated between 14 and 22 GPa. The stability of ThO can be attributed due to the gradually filling 5f orbitals at…
The selective catalytic reduction (SCR) of NOx by NH3 has been extensively studied in the literature, mainly because of its high potential to remediate the pollution of diesel exhaust gases. The implementation of the NH3-SCR process into passenger cars requires the use of an ammonia precursor, provided by a urea aqueo…
The KCTD family is an emerging class of proteins that are involved in important biological processes whose biochemical and structural properties are rather poorly characterized or even completely undefined. We here used KCTD5, the only member of the family with a known three-dimensional structure, to gain insights int…
In this article, the multiwalled carbon nanotubes modified by γ-aminopropyltriethoxysilane (MWCNT-APTES) and 9,10-dihydro-9-oxa-10 phosphaphenanthrene-10-oxide (DOPO) were added into the 4,4′-bismaleimidophenyl methane (BDM)/2,2′-diallyl bisphenol A (DBA) resins to prepare the flame retardant resins. Morphological obs…