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. Author manuscript; available in PMC: 2008 Dec 20.
Published in final edited form as: J Control Release. 2007 Sep 21;124(3):172–180. doi: 10.1016/j.jconrel.2007.09.005

Figure 3.

Figure 3

Conformation of DNA after incubation with blank PLGA microspheres in PBS buffer at 37 °C. Graph shows percentage of DNA retained in supercoiled (closed circles), open circular (open circles) and linear (closed triangles) forms over time.