Microspherical Particles of Solid Dispersion of Polyvinylpyrrolidone K29-32 for Inhalation Administration

<div>Powder X-ray diffractograms of freshly generated microspherical particles prepared with three different spray caps (4.0 <i>μ</i>m (black), 5.5 <i>μ</i>m (red), and 7.0 <i>μ</i>m (blue) hole size) and after 4-month storage in ambient conditions.</div>

BioMed Research International

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Figure 9

Figure 9: Microspherical Particles of Solid Dispersion of Polyvinylpyrrolidone K29-32 for Inhalation Administration 