Fig. 1From: Rhamnolipid-coated W/O/W double emulsion nanoparticles for efficient delivery of doxorubicin/erlotinib and combination chemotherapyCharacterization of RL-NP-DOX-ERL. a Size distribution and zeta potential of RL-NP-DOX-ERL (left) and NP-DOX-ERL (right) (n = 3). The inserted images were obtained by TEM. b Cryo-TEM image of RL-NP-DOX-ERL. c Size and zeta potential value of NP measured for 7 days (n = 3). d Time-dependent release of DOX and ERL from RL-NP-DOX-ERL (left) and NP-DOX-ERL (right) (n = 3)Back to article page