Figure 5From: Encapsulation of Alpha-1 antitrypsin in PLGA nanoparticles: In Vitro characterization as an effective aerosol formulation in pulmonary diseases FTIR spectra of pure AAT (a), PLGA 50:50 (b), PLGA 75:25 (c), nonaqueous emulsion made α1AT-loaded PLGA (d), double emulsion made α1AT-loaded PLGA (50:50) and (75:25)(e and f, respectively). Back to article page