Figure 1.
Optical microscopic image of HPMCP coating for GTCs after saliva–gastrointestinal digestion at a magnification of 40×. (A) L-HPMCP; (B) S-HPMCP. HPMCP, hydroxypropyl methyl cellulose phthalate; L-HPMCP, HPMCP size > 500 μm; S-HPMCP, HPMCP size < 500 μm.