Skip to main content
. Author manuscript; available in PMC: 2022 Feb 1.
Published in final edited form as: J Drug Deliv Sci Technol. 2020 Oct 6;61:102128. doi: 10.1016/j.jddst.2020.102128

Fig 6.

Fig 6.

Scanning electron microscopy (SEM) images of (A) pure theophylline, (B) pure nicotinamide, (C) 1:1 Theophylline Nicotinamide 170 ° C (F4) extrudates, (D) 1:1 Theophylline Nicotinamide with 5% HPMCAS-MG (F5), (E) 1:1 Theophylline Nicotinamide with 5% PEO (F6), and (F) 1:1 Theophylline Nicotinamide with 5% Kollidon® VA-64 (F7).