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. 2021 Jun 17;13(6):894. doi: 10.3390/pharmaceutics13060894

Figure 4.

Figure 4

Liposomal Cu(DDC)2 retention upon storage at 4–6 °C. Aliquots of non-PEGylated and PEGylated Cu(DDC)2 liposomes (8 mM total lipid) were stored at 4–6 °C for 6 months (183 days). Samples were filtered through a 0.2-µm CA filter after specific storage time points. The D/L ratio of Cu(DDC)2 liposomes was determined before and after the filtration step. A reduction of the D/L ratio indicated Cu(DDC)2 release from liposomes. Data are expressed as the mean ± SD (n = 3).