Complementary Structure Sensitive and Insensitive Catalytic Relationships

The burgeoning field of nanoscience has stimulated an intense interest in properties that depend on particle size. For transition metal particles, one important property that depends on size is catalytic reactivity, in which bonds are broken or formed on the… Read moreComplementary Structure Sensitive and Insensitive Catalytic Relationships

Commerical reference shape standards use in the study of particle shape effect on laser diffraction particle size analysis

The purpose of this paper is to describe the use of LGC Promochem AEA 1001 to AEA 1003 monosized fiberanalog shape standards in the study of the effect of particle shape on laser diffraction (LD) particle size analysis (psa). The… Read moreCommerical reference shape standards use in the study of particle shape effect on laser diffraction particle size analysis

Characterization of 5-fluorouracil microspheres for colonic delivery

The purpose of this investigation was to prepare; evaluate the colon-specific microspheres of 5-fluorouracil for the treatment of colon cancer. Core microspheres of alginate were prepared by the modified emulsification method in liquid paraffin; by cross-linking with calcium chloride. The… Read moreCharacterization of 5-fluorouracil microspheres for colonic delivery

Characterization of microemulsion structures in the pseudoternary phase diagram of isopropyl palmitate/water/Brij 97:1-butanol

This research was aimed to characterize microemulsion systems of isopropyl palmitate (IPP), water,; 2?1 Brij 97; 1-butanol by different experimental techniques. A pseudoternary phase diagram was constructed using water titration method. At 45% wt/wt surfactant system, microemulsions containing various ratios… Read moreCharacterization of microemulsion structures in the pseudoternary phase diagram of isopropyl palmitate/water/Brij 97:1-butanol

Comparative study of the fluid dynamics of bottom spray fluid bed coaters

Fluid dynamics of pellets processed in bottom spray traditional Wurster coating; swirl accelerated air (precision) coating were compared with the intent to understand; facilitate improvements in the coating processes. Fluid dynamics was described by pellet mass flow rate (MFR) obtained… Read moreComparative study of the fluid dynamics of bottom spray fluid bed coaters

Characterization of DNA degradation using direct current conductivity; dynamic dielectric relaxation techniques

The purpose of this study was to evaluate DNA degradation upon thermal heating using dielectric relaxation; direct current (DC) conductivity methods. Herring sperm DNA, human growth hormone (HgH) plasmid DNA,; secreted alkaline phosphatase (SEAP) plasmid DNA were used as the… Read moreCharacterization of DNA degradation using direct current conductivity; dynamic dielectric relaxation techniques

Composition, structure and electrical properties of alumina barrier layers grown in fluoride-containing oxalic acid solutions

The composition, structure and electrical properties of alumina barrier layers grown by anodic oxidation in F?-containing (FC) and F?-free (FF) oxalic acid solutions were studied using the re-anodizing/dissolution technique, Fourier-transformed infrared and X-ray photoelectron spectroscopy. These results confirmed formation in… Read moreComposition, structure and electrical properties of alumina barrier layers grown in fluoride-containing oxalic acid solutions