Materials Literature
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A novel C3-symmetric peptide conjugate bearing three glutathione units (trigonal-glutathione, TG) was synthesized and its self-assembling behavior in water was studied by dynamic light scattering measurement, electron microscopy, and 1H-NMR spectroscopy. In water, TG showed spontaneous self-assembly into nanospheres w…
In this work, a water soluble perylene derivative containing piperazine peripheral units, i.e. N,N'-bis(2-(1-piperazino)ethyl)-3,4,9,10-perylenetetracarboxylic acid diimide dichloride (PZPER) was synthesized and dispersed at low loadings (from 0.1 to 1.1 wt%) into vinyl alcohol-containing polymer matrices. From the da…
The use of self-assembling materials, including block copolymers, colloids, surfactants and supramolecular materials, has had a profound impact on the fabrication of nanopatterned surfaces. Despite receiving intense attention, and unlike when other self-assembling methods are employed, the construction of nanoscale te…
Active thylakoids were encapsulated into a three-dimensional silica network to design a photosynthetic bioreactor suitable for harvesting light and splitting water to oxygen. Since these photosynthetic structures are very sensitive to ionic strength and osmotic pressure as well as traces of alcohols, a biocompatible s…
The Fermi surfaces (FS) of LaOFeAs (in k z = 0 plane) consist of two hole-type circles around Γ point, which do not touch each other, and two electron-type co-centred ellipses around the M point, which are degenerate along the M – X line. By first-principles calculations, here we show that additional degeneracy exists…
In this paper, we consider the application of the local discontinuous Galerkin method for the Allen-Cahn/Cahn-Hilliard system. The method in this paper extends the local discontinuous Galerkin method in [10] to the more general application system which is coupled with the Allen-Cahn and Cahn-Hilliard equations. Simila…
Grondstoffen voor farmaceutische preparaten zijn te verdelen in therapeutisch werkzame verbindingen (actieve stoffen, farmaca) en hulpstoffen (excipientia). Voor de nomenclatuur van grondstoffen verwijzen wij naar hoofdstuk 3 Gebruiksadviezen.
ABSTRACT Modern dentistry and research will make possible the maintenance of comprehensive oral health by involving the use of nanomaterials, biotechnology including tissue engineering and, ultimately, dental nanorobotics (nanomedicine). Within 10 to 20 years, these devices will allow precisely controlled oral analges…
The aim of the present work is synthesis of ferroelectric nanomaterials, in the K2O-Nb2o5-SiO2 system via solgel method and studying the processes of formation and structure of the synthesized ferroelectric nanomaterials. The structure of synthesized materials has been studied by means of the following methods: EDS, X…
Current clinical diagnostics and therapeutics platforms are often limited by borderline sensitivity or efficacy levels. These limitations result from low or minimal specificity for the intended target cell or organ, span a multitude of physiological disorders and result in nominal success rates for diagnosis or treatm…
The authors studied surface mechanical treatments of thermomechanical pulp fibers using a grit material after first-stage refining and the treatment’s impact on second-stage refining. The surface mechanical treatment was performed using an ultra-fine friction grinder. The grit size of the grinding stone, the intensity…
In this pilot study we described the procedure of purifi cation for erythritol dehydrogenase (EDH) involved in the utilization of erythritol in M. smegmatis ATCC 20. Some properties of this enzyme were studied. This enzyme purifi ed from cytosolic fraction can be regarded as NAD+-depedent polyol (C3-5) dehydrogenase,…
A survey of the diatom (Bacillariophyceae) populations in 14 lakes and ponds on sub-Antarctic Macquarie Island identified 102 species from 34 genera, including species considered endemic to the sub-Antarctic region. Multivariate analysis of the diatom communities divided the lakes into two broad groups; oligotrophic p…
A área de estudo corresponde aos campos flúvio-marinhos com risco de inundação e presença de solos hidromórficos da região do Golfão Maranhense. Os solos dessa região apresentam algum impedimento a drenagem, proximidade com o mar (fonte de sais), condições favoráveis a inundação e aos processos de evaporação. Este con…
The homogeneity regions of Nd1 − x Ba x MnO3 (0.0 ≤ x ≤ 0.25) and NdMn1 − y Fe y O3 (0.0 ≤ y ≤ 1.0) orthorhombic solid solutions in air at 1373 K were determined. The region of the existence of Nd1 − x Ba x Mn1 − y Fe y O3 orthorhombic solid solutions in air at 1373 K was studied. A fragment of the phase diagram of th…
The purpose of this study is to analyze skin wettedness() used as the rate index of thermal comfort, and to evaluate the wear comfort of outdoorwear. Skin wettedness is widely used to express the degree of thermal comfort. If skin wettedness exceeds a certain threshold, the body feels damp and discomfort. An experimen…
ABSTRACT ：A study on the life-time expectation of a CR-modified NR rubber composite through the change of thermaldegradation characteristics was performed using both isothermal thermogravimetric analysis (TGA) and thermomechanicalanalysis (TMA). Master curves at reference temperature of 90℃ could be obtained with shif…
Diffracted Gaussian beam analysis (DGBA) is a fast method for Quasi-optical systems analysis, and Periodic Method of Moment (PMM) is an efficient method for analyzing Frequency Selective Surfaces (FSS). This paper introduces a 3D design software for Quasi-optical systems namely SiMatrix based on the integration of the…
New hexanuclear complexes of lanthanum and neodymium iodides, [La 6 (H 2 O) 23 (OH) 10 ]I 8 · 8H 2 O ( I ) and [Nd 6 (H 2 O) 23 (OH) 10 ]I 8 · 8H 2 O ( II ), are synthesized and studied by X-ray diffraction analysis. The isostructural crystals of complexes I and II are orthorhombic: a = 13.197(4) Å, b = 15.152(3) Å, c…
In this investigation the extent of the plastic zone size ahead of a crack-tip in single edge notched tension (SENT), compact tension (CT) specimens has been examined experimentally by micro-hardness technique and by elastic-plastic finite element analyses at different applied load levels. The magnitudes of the plasti…