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. Author manuscript; available in PMC: 2016 Oct 1.
Published in final edited form as: J Pharm Sci. 2015 Jul 14;104(10):3471–3480. doi: 10.1002/jps.24558

Figure 2.

Figure 2

Representative ultrasound images of the same implant over the course of the study. Polymer precipitation results in white while darker areas suggest a polymer lean domain. Row 1 is an excipient free control, row 2 contains water in the casting solution, row 3 contains DiI, row 4 contains BSA, and row 5 is a combination of BSA/DiI.