Now showing items 21-26 of 26
Evaluation of NIR, FTIR and Raman spectroscopies as monitoring techniques for recombinant GFP protein production in fed-batch cultures of Escherichia coli
The expression of green fluorescent protein (GFP) was induced and monitored in fed-batch cultures of a genetically-engineered Escherichia coli strain. This recombinant E. coli is commercially available (Bio-Rad pGLO kit), ...
Determination of an empirical correlation for the mass transfer coefficients of pharmaceutical powders in a fluid bed layer
The pharmaceutical industry has four basic operations to produce tablets: mixing, drying, milling, and tablet pressing. Fluidized bed drying of the pharmaceutical powders is one of the most efficient methods, which is ...
Uso de la técnica de interrupción de corriente para la caracterización de una celda de combustible no humidificada con membrana de intercambio protónico
Due to the energetic crisis, the US government has promoted the development of alternatives resources for the generation of electricity. Fuel Cells have emerged as one of the most promising technologies for the power ...
Supercritical fluid processing of sulfonated styrenic tri-block polymers
The increasing need to replace current materials with new or reprocessed ones that have more specific properties and uses has led to the use of supercritical fluids (SCFs) for polymer reprocessing. Kraton® poly ...
A new mixing rule in the modeling of the solubility of solids in supercritical fluids
Currently, supercritical-fluid technology in the pharmaceutical and microelectronics industries is increasingly applied to solve difficult processing problems. The solubility of a solute in the supercritical fluid is the ...
Supercritical fluid processing of perfluorinated and sulfonated membranes
Over the past years, one of the most important challenges facing industry has been the search for environmentally benign and cost effective alternatives to traditional power sources. Many industries invest considerable ...