Table 1.
Characteristics of three particle forms delivering the same deposited dose per surface area in G13.
2.64 μm Microparticles | 2.64 μm Nanoaggregates | 50 nm Nanoaerosols | |
---|---|---|---|
Particle density (BD and FP) [g/cm3] | 1.3 | 1.3 | 1.3 |
Mass of 1 particle [ng] | 0.01252 | 0.01252 each nanoaggregatea | 8.51E-8 |
Integer number of particles in airway | 6 | 6 nanoaggregatesb 147,121 nanoparticles each | 882,726 |
Number of simulated parcels | 6 | 600 | 24,000 |
Number of particles per parcel | 1 | 1471 | 36.8 |
Total drug mass deposited in airway [ng] | 0.0751 | .0751 | 0.0751 |
Deposited dose per surface area [ng/cm2] | 1.22c | 1.22 | 1.22 |
Surface area of one G13 airway: 0.06158 cm2 Deposited dose based on CFD estimates: 1.3 ng/cm2
Packing fractions are not included
Nanoparticles composing the nanoaggregates have a diameter of 50 nm
Value is different from the target of 1.3 ng/cm2 due to the need of an integer number of microparticles