Table 2.
Overall aerosol properties of M33_PEG 2000-Rhod and M33_PEG 5000-Rhod delivered through Aeroneb® Go and PARI TurboBOY nebulizers: Experimental mass median aerodynamic diameter (MMADexp) and geometric standard deviation (GSD) were calculated by plotting cumulative mass of particles retained in each collection cup versus the cut-off diameter of the corresponding stage. The fine particle fraction (FPF) was calculated as the percentage of NPs deposited in stages 3–7 (MMADexp < 5.39 μm) compared to the amount initially loaded in the nebulizer chamber. The respirable fraction (RF) is the total amount recovered from the NGI. Data are reported as mean ± SD (n = 3).
| M33_PEG 2000RhodNPs | M33_PEG 5000RhodNPs | |||
|---|---|---|---|---|
| Aeroneb | PARI TurboBOY | Aeroneb | PARI TurboBOY | |
| FPF | 37.1 ± 16.3 | 39.4 ± 9.5 | 40.5 ± 0.1 | 43.0 ± 5.7 |
| RF | 71.1 ± 1.6 | 71.2 ± 7.4 | 50.0 ± 7.8 | 67.5 ± 2.2 |
| MMADexp | 2.68 ± 1.03 | 2.66 ± 1.02 | 3.85 ± 0.70 | 2.53 ± 0.71 |
| GSD | 2.91 ± 0.98 | 2.66 ± 0.58 | 2.62 ± 0.02 | 2.86 ± 0.47 |
FPF, fine particle fraction; RF, respirable fraction; MMADexp, experimental mass median aerodynamic diameter; GSD, geometric standard deviation.