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Now showing items 101-110 of 133
Surface modification of nanoporous films using organosilanes dissolved in supercritical carbon dioxide
(2008)
It is well known in the microprocessor industry that as the number of transistors increases, the capacity of chips to manage information also increases. To continue with the increment in the number of transistors per ...
Design and analysis in modelling reactive separation processes
(2008)
This work presents the existence of multiple steady states in equilibrium multistage reactive distillation for methyl tert-butyl ether (MTBE) synthesis. The Rachford-Rice procedure is extended to reactive systems where a ...
Optimization of drying-end-points measurements for the automation of a fluidized-bed dryer using FT-NIR sprectroscopy
(2004)
Automatic control of a fluidized-bed drying process depends on the availability of
an in-line sensor to provide accurate measurements of product moisture content. Nearinfrared
(NIR) spectroscopy technology provides a ...
Sonolysis of pharmaceutical and personal care products as an advanced oxidation process for the remediation treatment of wastewater effluents
(2007)
Pharmaceutical and Personal Care Products (PPCPs) are a diverse group of chemicals, also known as xenobiotics, treated like potential environmental pollutants. Recently, PPCPs have been detected in trace amounts in surface ...
Novel separation methods for removing nanoparticles and copper from chemical mechanical planarization wastes
(2007)
Chemical mechanical planarization (CMP) wastewater emanating from semiconductor processing contains copper (II) ions and either alumina and/or silica nanoparticles. The efficiency of biotreatment schemes to remove copper ...
Modeling of growth kinetics of wet granulation in a high shear mixer by means of image processing and analysis
(2006)
Wet granulation is one of the most important operations where fine particles are
agglomerated into larger granules by adding a binder. The process is used in many chemical
industries including pharmaceutical, mineral ...
Modeling the phase equilibrium of multicomponent systems involving solids, supercritical fluids, and consolvents
(2006)
Carbon dioxide is one of the most commonly used supercritical fluids. However, its uses
are limited due to its low solubility capacity for polar substances. Addition of cosolvents
improves the solubility of polar and ...
Evaluation of NIR, FTIR and Raman spectroscopies as monitoring techniques for recombinant GFP protein production in fed-batch cultures of Escherichia coli
(2008)
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
(2004)
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 ...
Testing of centrifugal filter devices as a tool to quantify protein-nanoparticle interactions using UV/Vis measurements
(2012)
Centrifugal Filter Devices (CFD) has been tested for the quantification of protein adsorption onto the surface of magnetic nanoparticles coated with biocompatible polymers. Using a phosphate buffered saline wash protocol, ...