Materials Literature
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The purpose of this paper is to review the current processing and resultant properties of standard Nitinol wire for guide-wire applications. Optimised Ti-50.8at%Ni wire was manufactured according to industry standards by precise control of the composition, cold work and continuous strain-age annealing. Mechanical prop…
A protocol is described to isolate small quantities of highly purified cellulose for isotopic analysis of 10–100 mg samples of secondary (Pinus sylvestris L.) and primary (Rubus idaeus L.) plant cell wall material. Elemental analysis of 350 cellulose samples isolated from pine wood samples estimated the relative carbo…
The behaviour of emulsions stabilised by partially hydrophobic spherical silica particles is described for systems in which the oil type is varied in mixtures with water, and for toluene-containing systems in which water is replaced by other polar solvents. Using contact angle measurements on flat glass substrates, we…
New Reactions of Grignard Reagents. Stereoselective Reactions of Organomagnesium Compounds. Mechanistic Features of Organomagnesium Compounds. Industrial Applications and Strategy. Unusual Organomagnesium Compounds. Structures of Organomagnesium Solids and Solutions.
Research Article| January 01, 2000 The Crystal Chemistry of Sulfate Minerals Frank C. Hawthorne; Frank C. Hawthorne Department of Geological Sciences, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2 Search for other works by this author on: GSW Google Scholar Sergey V. Krivovichev; Sergey V. Krivovichev Dep…
Based on the character of a clay that could be separated into many 1-nm thickness monolayers, clay styrene-butadiene rubber (SBR) nanocomposites were acquired by mixing the SBR latex with a clay/water dispersion and coagulating the mixture. The structure of the dispersion of clay in the SBR was studied through TEM. Th…
Abstract Tightening environmental legislation is driving the fine and speciality chemicals industries to consider alternative processes that avoid the use of conventional mineral acids. The use of heterogeneous catalysts in these processes would vastly simplify catalyst removal, minimizing the amount of waste formed.…
The in vitro refolding of hen egg-white lysozyme is studied in the presence of various osmolytes. Proline is found to prevent aggregation during protein refolding. However, other osmolytes used in this study fail to exhibit a similar property. Experimental evidence suggests that proline inhibits protein aggregation by…
Nanorods of several oxides, with diameters in the range of 10–200 nm and lengths upto a few microns, have been prepared by templating against carbon nanotubes. The oxides include V2O5, WO3, MoO3 and Sb2O5 as well as metallic MoO2, RuO2 and IrO2. The nanorods tend to be single-crystalline structures. Nanotube structure…
Physical and chemical information on nickel corrosion layer formation, evolution, morphology, and chemical makeup is organized and presented, together with information on nickel‐containing minerals and other crystalline structures that might be expected to be present. The chemical reactions involved in the formation o…
Polypropylene–clay hybrids (PPCHs) were prepared by melt blending maleic anhydride modified PP and organophilic clay. In these PPCHs the silicate layers of the clay were exfoliated and dispersed to the monolayers. The hybridization of the clay in PP was achieved with modified PP with a small amount of maleic anhydride…
Four polyols intended for application in polyurethanes were synthesized by oxirane ring opening in epoxidized soybean oil with hydrochloric acid, hydrobromic acid, methanol, and hydrogen. The structures of the polyols were characterized by spectroscopic, chemical, and physical methods. The brominated polyol had 4.1 hy…
This work deals with new flame retardant (FR) intumescent formulations for ethylene-vinyl acetate copolymers (EVA) using charring polymers polyamide-6 (PA-6) and polyamide-6 clay nanocomposite hybrid (PA-6-nano) as carbonization agents. Use of PA-6 nano improved both the mechanical and fire properties of FR EVA-based…
We present a complete study of the conductive form of the polyaniline emeraldine salt. The experimental spectra of emeraldine salt doped in the classical way and also by the action of camphorsulfonic acid–m-cresol are presented. Vibrational calculations on emeraldine salt are presented, considering the non-planar geom…
Evolutionary information derived from the large number of available protein sequences and structures could powerfully guide both analysis and prediction of protein-protein interfaces. To test the relevance of this information, we assess the conservation of residues at protein-protein interfaces compared with other res…
Cross-linking of gelatin A and B with N,N-(3-dimethylaminopropyl)-N'-ethyl-carbodiimide hydrochloride (EDC) and N-hydroxysuccinimide (NHS) was optimised by varying the NHS/EDC molar ratio at constant EDC concentration. Native and cross-linked gelatin gels were characterised using the degree of swelling, the number of…
Electrical conductivity of , as a function of temperature and oxygen partial pressure, is measured with a complex impedance method. The increase of electrical conductivity with reducing oxygen partial pressure can be described well by a model that assumes constant mobility of both oxygen vacancies and electrons, based…
We report measurements of the glass transition temperature, T(g), in free standing polymer films in a low M(n) limit where chain confinement effects are not observed. The measured T(g) values are accurately described by a layer model incorporating a mobile surface layer with a size determined by the length scale of co…
A two-dimensional model for biofilm growth and detachment was used to evaluate the effect of detachment on biofilm structures. The detachment process is considered to be due to internal stress created by moving liquid past the biofilm. This model generated a variety of realistic biofilm-formation patterns. It was poss…
The use of protein–substrate binding to program the self-assembly of nanoparticle-based structures from aqueous solution is highlighted here. The systems discussed include aqueous dispersions of metal nanoparticles with surface-attached antibodies and bivalent antigens in solution (see Figure), and ferritin-encapsulat…