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. Author manuscript; available in PMC: 2009 Mar 20.
Published in final edited form as: Int J Pharm. 2007 Oct 12;352(1-2):17–28. doi: 10.1016/j.ijpharm.2007.10.003

Figure 6.

Figure 6

Normalized fluorescence excitation (panel A) and emission (panel B) spectra of DB-67 in liposomes of varying pH (7.8–10.1). The arrows show the direction of increasing pH. Values for pH in the vesicles for which the spectra are displayed are 7.8, 8.4, 9, 9.5 and 10.1, respectively.