Satisfactory (>80%) biocompatibility of as-synthesized PAA-capped QDs is achieved at a particle concentration below 15 μg Cd/mL in 293T cell lines.
A gel with a larger particle concentration contains closely packed particles that have plenty of contact areas between the particles.
For the low concentration coexposure experiments, particles were considered to have a significant impact on hsp70 levels with a p < 0.01 for a given particle concentration.
It is proposed that, under indentation loading, enhanced matrix flow that contributes to a localized increase in particle concentration directly below the indenter results in a significant overestimation of the overall composite strength by the hardness test.
A gas cushion of low particle concentration appeared below the louver baffle, and its height increased with increasing superficial gas velocity, indicating increasing suppression of solids backmixing.
Although the particle concentration factor decreases rapidly below 0.3 μm, ultrafine particles are concentrated.
This particle concentration is well below gold-silica nanoshell doses that have been previously used in mice (∼1 × 10 particles/mouse), indicating that relevant amounts of doxorubicin can be loaded into this platform.
For simplification, we use a threefold definition below: (1) massive, unsorted, and coarse-grained deposits are thought to reflect the absence of a basal tractional flow boundary during deposition, plus high particle concentration, and dominant particle particle interactions in the parental flow (Brissette and Lajoie 1990; Boudon et al. 1993; Branney and Kokelaar 2002; Sarocchi et al. 2011).
When using eqn 1 Smaal and Widdows (1994, p. 264) adjusted the through-flow rate so that the outflow particle concentration was 'not more than 30% below the inflow concentration, in order to use the inflow concentration as an estimate of the concentration in the chamber'.
In some cases the ultrafine particle concentration in the flue gas may be below that in the local ambient air.
