Materials Literature
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Dystrophic epidermolysis bullosa (DEB) is an inherited mechano-bullous disorder of skin caused by mutations in the type VII collagen gene. The lack of therapy for DEB provides an impetus to develop gene therapy strategies. However, the full-length 9-kilobase type VII collagen cDNA exceeds the cloning capacity of curre…
Using an interface displacement model we calculate the shapes of nanometer-size liquid droplets on homogeneous cylindrical surfaces. We determine effective contact angles and line tensions, the latter defined as excess free energies per unit length associated with the two contact lines at the ends of the droplet. The…
Texture measurements were performed on liquid‐phase‐sintered alumina textured by a templated grain growth process from 1250° to 1650°C. Texture distributions were measured using X‐ray pole figures, rocking curves, Rietveld refinement, and stereology. The March–Dollase equation fitted the measured distributions very we…
The synthesis and properties of ‘3:1’ phthalocyanines, in which three of the benzenoid rings are similarly substituted whereas the fourth is differently substituted or is replaced by a heteroaromatic ring, are overviewed with an emphasis on contributions from the group at the University of East Anglia. The synthesis o…
Lanthanum(III), europium(III), and gadolinium(III) complexes with chelating nitronyl nitroxide free radicals show luminescence between 700 and 1000 nm. The resolved vibronic structure involves both radical-centered and metal-radical modes.
Melting of pure gallium in a bidimensional rectangular cavity with aspect ratio 1.4 is presented. The paper is focused on pattern formation in the fluid phase during the process of melting. The formation of a multiple cells structure has been found during the first stage of the transient, while a merging of the small…
The ability of triple-helical collagen molecules to assemble into supramolecular structures forms the basis of commercial uses of collagen in the food industry and in medical applications such as cosmetic surgery and tissue repair. We have used cDNA techniques to engineer novel collagens with potentially enhanced biol…
The behavior of nematic liquid crystals in spatially varying electrical fields is investigated. Director profiles of nematic-liquid-crystal phase gratings are simulated for different orientations of the liquid-crystal director field with respect to the electrode grating. With increasing spatial frequency of the gratin…
The atomic interactions and anharmonicity of atomic displacements in the virtual ferroelectric KTaO3, potassium tantalate, have been studied using accurate single-crystal X-ray diffraction at room temperature. The multipole analysis of electron density and Gram-Charlier series description of anharmonic atomic displace…
The effect of different rates of potassium (K) fertilizer on the yield and quality of sugar beet was studied in a series of 26 trials on soils of different type and K index between 1992 and 1997. There were few yield responses even though the majority of trials were on soils of low K index, and large quantities of fer…
Food-grade polyvinyl chloride (PVC) film containing 28.3% di-(2-ethylhexylexyl)adipate (DEHA) plasticizer was used to wrap three different types of cheese (Kefalotyri, Edam, and Feta). Samples were split into two groups and stored at 5+/-0.5 degrees C. One group was analyzed for DEHA content at intervals between 1 and…
Cell dynamics simulations are a powerful tool to simulate kinetic processes in phase separating systems. Here we review the technique and its application to block copolymers. Its advantages and disadvantages compared to other simulation methods for block copolymer structure and dynamics are reviewed. Results on the dy…
An overview about the homogeneous and heterogeneous methods of synthesizing silylating agents and applications of the organofunctionalized silica-gel samples was explored. The pendant molecules attached covalently to the inorganic surface displayed important properties to act as sequestrating agents for metals in aque…
Using 2-hydroxyethyl α-bromoisobutyrate as initiator, atom transfer radical polymerization (ATRP) of tert-butyl acrylate leads to poly(tert-butyl acrylate) (PtBA) with a hydroxyl group at one and a bromine atom at the other end. Esterification of the hydroxyl group of these heterotelechelic polymers with acryloyl chlo…
Dislocations have been introduced in SrTiO3 by Vickers indentation at room temperature and analysed by transmission electron microscopy. The slip systems in SrTiO3 were identified as ⟨110⟩-{110}. ⟨110⟩ dislocations are dissociated into two partial dislocations. The stacking-fault energy γSF was determined to be 136 ±…
We demonstrate the enhancement of diamond nucleation through the use of the equilibrium forces at the solid-liquid-gas interface on a substrate wetted with droplets of an oil of low vapor pressure. Such a process is shown to produce well-faceted grains with densities of roughly 107 nuclei cm−2 (boundary), 105 nuclei c…
Enzymatic degradation and polymerization using an enzyme were analyzed with respect to the establishment of a sustainable chemical recycling system for poly(ε-caprolactone) (PCL) which is a typical biodegradable synthetic plastic. As the typical example, the enzymatic degradation of PCL having an Mn of 110 000 using l…
The use of normal Raman spectroscopy and surface-enhanced Raman spectroscopy (SERS) of cationic-coated, silver substrates to detect nitrate and sulfate ions in aqueous environments is examined. For normal Raman spectroscopy using near-infrared excitation, a linear concentration response was observed with detection lim…
Optically active 1,1′-binaphthyl molecules have been used to construct novel chiral dendrimers and linear polymers. Efficient light harvesting effects of the dendrimers have been observed. They have shown enantioselective fluorescence responses in the presence of chiral amino alcohol quenchers. They are potentially us…
Deoxythymidine diphosphate (dTDP)-4-keto-6-deoxy-d-hexulose 3, 5-epimerase (RmlC) is involved in the biosynthesis of dTDP-l-rhamnose, which is an essential component of the bacterial cell wall. The crystal structure of RmlC from Methanobacterium thermoautotrophicum was determined in the presence and absence of dTDP, a…