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. Author manuscript; available in PMC: 2011 Jun 21.
Published in final edited form as: J Control Release. 2009 Oct 3;141(2):193–198. doi: 10.1016/j.jconrel.2009.09.017

Figure 4.

Figure 4

Ultrasound images of non-echogenic liposomes (left) and two different ELIP formulations that encapsulated ODN, DPPC/DOPE/DPPG/CH (middle) DPPC/DOPC/DPPG/CH (right). All preparations were at 0.25 mg lipid/ml). Liposomes were imaged with a 20-MHz intravascular ultrasound catheter in a 5 ml glass vial. Acoustic reflectivity of ODN-ELIP is clearly observed whereas the liposomes without entrapped air demonstrate no echogenicity (white ring at periphery represents reflection from the wall of the vial).