Fiock, Mary A. (Fort Detrick, Frederick, Md.), Allen Yarinsky, and James T. Duff. Studies on immunity to toxins of Clostridium botulinum. VII. Purification and detoxification of trypsin-activated type E toxin. J. Bacteriol. 82:66-71. 1961.-A procedure was described for production, purification, and conversion to toxoid of the Clostridium botulinum type E trypsin-treated toxin. A medium containi...

The microstructural features of variable polarity plasma arc welded Al-Cu-Mg 2024-T351 with 2319 filler have been studied by TEM, SEM and DSC. Fusion zone, partial melting zone, resolutionising zone, overageing (for S phase), peak ageing (for S phase) and under ageing zones (for S phase) have been identified. The Ω phase has been observed between re-solutionising zone and peak ageing zone. The ...

Thick regoliths developed under tropical climate, namely, laterites, resulting from long-term and pronounced geochemical mineralogical rearrangement of the parent rock in response to environmental changes. Little information is available on timing laterite bauxite formations, especially chronology main weathering episodes responsible for lateritic cover formation Guiana shield. For this purpose...

The global production and consumption of plastics have continued to increase. Plastics degrade slowly, causing persistent environmental pollution Developed waste plastic recycling methods are discussed in this report, with a focus on the dissolution/reprecipitation technique restore low-density polyethene (LDPE) wastes. Aspen HYSYS is used simulate LDPE. Turpentine/petroleum ether (TURP/PetE) c...

Abstract The present investigation intends to interpret the effect of tool rotational speed on mechanical properties and microstructural evolution in Aluminium 6061-T6 alloy during friction stir welding. A higher value rotation produces more hardness at nugget zone, which is attributed intensity reprecipitation rpm, revealed by transmission electron microscopy. zone as a nearly precipitate-free...

Herein, we report on near-infrared (NIR) fluorescent nanoparticles generated from an emergent class of materials we refer to as a Group of Uniform Materials Based on Organic Salts (GUMBOS). GUMBOS are largely frozen ionic liquids, although the concept is more general and is also easily applied to solid ionic materials with melting points in excess of 100 degrees C. Nanoparticles based on GUMBOS...

Studies have been made on muscovite single crystals treated under dry and hydrothermal conditions at temperatures above 800~ The course of reaction is markedly affected by the amount of water present in the system. In the presence of a large excess of water, appreciable reaction commences at 8(~0~ with the formation of kalsilite and corundum. The kalsilite may bear an epitaxial relationship to ...

Applications of conjugated polymer nanoparticles (Pdots) for imaging and sensing depend on their size, fluorescence brightness and intraparticle energy transfer. The molecular design of conjugated polymers (CPs) has been the main focus of the development of Pdots. Here we demonstrate that proper control of the physical interactions between the chains is as critical as the molecular design. The ...

Single crystals of the superconductor YBa$usO,, have been grown from a mixture of solid phase YBa,CusO,, and liquid phase silver. Crystals with a thickness of up to 1 mm along the c axis can be obtained when the mixture is soaked at 1005 “C for more than 8 h. Silver melt enhances the peritectic partial melting of the YBa&usO,, solid phase, and induces the solution and reprecipitation process du...

The unregulated use of organophosphates (OPs) as pesticides and toxic chemical warfare agents demands their continuous monitoring from a human health perspective. This study describes a fluorescence turn-on sensing assay for the selective quantification of OPs in aqueous medium. Metal complexes of two different Biginelli derivatives were processed in water through a reprecipitation technique. T...