Extended Data Fig. 2: Representative images of the tight junction protein ZO-1 of monolayer of Caco-2 cells after treated with different micelles.
From: Zwitterionic micelles efficiently deliver oral insulin without opening tight junctions

The tight junction protein ZO-1 was stained with ZO-1 Monoclonal Antibody Alexa Fluor 488 (green) while the nucleus was stained with Hochest 33342 (blue). Scale bar =20μm. Experiments were repeated three times independently with similar results.