Materials Literature
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AzoTAB, a photosensitive azobenzene cationic surfactant, which phototriggers translation activity through light-regulated condensation of mRNA, is added to a translation solution containing several mRNAs, which can be selectively silenced by specific small RNAs. We find that gene silencing by small RNAs remains functi…
Size-controlled Si nanocrystals (nc's) of ∼ 2 to 5 nm diameter embedded in amorphous (a-)SiO2 are extensively studied by electron spin resonance (ESR) and photoluminescence (PL).The PL quenching P b -type (Si dangling bond) interface defects --P b(0) and P b1 centers--are investigated as a function of Si nc's size and…
The present paper studies MX crystals in rock-salt structure (M: Li, Na, K; X: F, Cl, Br, I). They are often described as being formed by ions. Pictures based on quantum mechanical calculations sustain and quantify it. The tools used are (i) the Quantum Theory of Atoms in Molecules, (ii) the Electron Localization Func…
From time immemorial, diamond attracted a special attention not only as a precious gemstone but also as an application material due to its unique and unsurpassed properties. Interest in diamond thin film research has enormously increased owing to the fact that most of the diamond properties could be utilized for vario…
Wellenreiten: Ein Aldehyd löst die orientierte Kristallisation selbstorganisierender fibröser Diphenylalanin-Peptidnetzwerke über große Entfernungen aus (siehe Bild). Das Kristallwachstum ist selbstregelbar und wird wahrscheinlich kinetisch reguliert, was zu dreidimensionaler Beschränkung uniaxial orientierter Unterst…
SiO 2 -supported Au nanoparticles derived from sol were promoted with 0.04–7.4 wt % CeO 2 using two methods. The addition of Ce precursor was done directly to the Au sols before sol immobilization step (method A) or to the suspension of parent Au/SiO 2 (method B). Both preparation routes resulted in CeO 2 decoration o…
Finite zigzag single-walled carbon nanotubes (SWCNTs) of some nanometers in length and modified by a topological defect of the Stone–Wales type were investigated by density functional theory (DFT) computation. Geometric changes of the regular hexagonal reference structures as well as alterations of their energetic, ma…
Abstract This Letter reports the use of nanoporous anodic aluminium oxide (AAO) for reflective interferometric gas sensing. Gas detection is based on changes of the interference signal from AAO porous layer as a result of the specific adsorption of gas molecules on a metal coated surface. Two different metal coatings…
The main purpose of this study was to determine the impulse of a bubble on a solid surface or the amount of energy transmitted to the surface by the bubble. To do this, the results of previous numerical studies were used to derive a relationship between the speed of microjet and acoustic pressure amplitude. It was fou…
WAXS, DSC and AFM methods were employed to compare phase structures of the coatings obtained from waterborne polyurethane cationomers which had been synthesised in the reaction of some diisocyanates (MDI, IPDI, TDI and HDI) with polyoxyethylene glycols (M = 600 and 2,000) and butane1,4-diol or N-methyl- or N-butyldiet…
Morpholine is a typical six-membered saturated heterocycle with the molecular formula HN(CH 2 CH 2 ) 2 O. In this work, the conformations of Morpholine in liquid and adsorbed on the surface of gold nanoparticles were studied by means of Raman spectroscopy and theoretical calculations. Ab initio calculations indicate t…
We report experimental work on capillary rise of a liquid in a cell formed by parallel plates, one of which is flexible. We show that above a critical width, the cell collapses under the negative capillary pressure in the liquid. This collapse allows the liquid to rise virtually without limit between the plates. The h…
Abstract Soy protein concentrate (SPC) is modified by blending with gelling agents such as agar, Agargel, and Phytagel and the properties of the blended films are characterized. Gelling agent addition significantly improves the mechanical properties, thermal stability, and moisture resistance. SPC blended with 30% PG…
The controlled polymerization of the 2-bromo-3-hexyl-5-iodothiophene ( 5 ) and 2-iodo-3-hexyl-5-bromothiophene ( 2 ), using Ni(dppp)Cl 2 as a catalyst and LiCl as an additive, was followed in real time by UV–vis spectroscopy. It was shown that the propagation rate constant depends strongly on the ratio R = [LiCl]/[M].…
The vaporization of B(2)O(3) in a reducing environment leads to the formation of both B(2)O(3)(g) and B(2)O(2)(g). Whereas the formation of B(2)O(3)(g) is well understood, many questions about the formation of B(2)O(2)(g) remain. Previous studies using B(s) + B(2)O(3)(l) have led to inconsistent thermodynamic data. In…
This paper presents particle-in-cell simulations of the plasma behaviour in the vicinity of gaps in castellated plasma-facing components (PFCs). The point of interest was the test limiter of the TEXTOR tokamak, a PFC designed for studies of plasma–wall interactions, in particular, related to impurity transport and fue…
Presented for the first time is an accurate modelling hierarchy for mixed CNT bundle interconnects. Single-walled CNTs and multi-walled CNTs have been modelled as equivalent single conductor transmission lines and then combined to form a mixed CNT bundle interconnect, which is basically a multiple equivalent single co…
We study the ameliorative potential of dimetylthiourea (DMTU), an OH• radical trapper and N-acetylcysteine (NAC), a glutathione precursor/H₂O₂ scavenger against titanium dioxide nanoparticles (TiO₂-NPs) and multi-walled carbon nanotubes (MWCNTs) induced cyto-genotoxicity in cultured human lung cancer cells-A549. Cytog…
This article reports on the synthesis of thermo- and pH-sensitive polymer-brush-grafted silica particles ("hairy" particles) and the study of their phase-transfer behavior between water and a hydrophobic ionic liquid, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide ([EMIM][TFSA]), in response to temperat…
Designed to deliver: Carbon nanotube (CNT)/amphiphile hybrids with remarkable stability and cell viability under biologically relevant conditions can be obtained by rational modification of the molecular structure of amphiphilic dispersing agents (see scheme; PEG= poly(ethylene glycol)). The CNT/amphiphile hybrids are…