Fig. 4

Confocal laser scanning microscopy (CLSM) images of a giant ellipsoidal polymersomes (GE) and b tubular polymersomes (TU) embedded in 1.5% w/v agarose gel. c Z-stack image of tubular polymersomes (TU). Insets in a, b show fluorescence intensity plot profiles highlighting the membrane structure and GE and TU, respectively. Scale bar, 5 µm