The effect of optimization parameters which includes polymer concentration, aqueous phase volume, surfactant concentration, theoretical drug loading, and organic phase volume on particle size of ETN and QDN is presented in Fig. 3 a, b, c, d, and e, respectively).
The supernatant was collected and further analyzed for α-KG to determine the encapsulation efficiency (1) Encapsulation efficiency = Calculated bioactive molecule concentration Theoretical bioactive molecule concentration.
The accuracy of the assay, reflected in relative error of measured concentration to theoretical (prepared) concentrations, was between 0.9 and 5.6% for all quality control samples.
"The relatively constant rates of female pleural mesothelioma over time in both urban and rural areas suggests that neither ambient background asbestos concentrations, nor theoretical asbestos exposures from contaminated cosmetic talc products (if any), have collectively or individually influenced the risk of pleural mesothelioma among females in the United States," the authors concluded.
MMP-12 protein from R&D Systems was autocatalyzed and spiked into four human sputum samples and into assay diluent at three different concentrations (final theoretical spiking concentrations of 10,000, 3000, and 1000 pg/mL).
MMP-12 protein from R&D Systems was spiked into eighteen human sputum samples and into assay diluent at three different concentrations (final theoretical spiking concentrations of 800, 3200, and 8000 pg/mL).
Free testosterone levels used in the present analyses were calculated on the basis of mass action law equations, which have been previously validated within the range of postmenopausal hormone concentrations, by theoretical simulations and direct comparison with free testosterone measurements obtained by an equilibrium dialysis method (Rinaldi et al. 2002).
For measurement of methane concentration, the theoretical sensitivity can be up to 4.21 μs/% and the minimum detectable concentration can be as accurate as 2.37 ppm.
Table 3 shows also the values of densities, concentration and theoretical crosslinking densities.
Fig. 3 Effect of various processing parameters on mean particle size and DEE of ETN and QDN. a Amount of polymer; b aqueous phase volume; c surfactant concentration; d theoretical drug loading; e organic phase volume.
