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Hemolytic activity of the LNPssPalm with different amount of PEG-lipids. The LNPssPalm with 0.75% of DMG-PEG2000 or 1.5% of DMG-PEG2000 was incubated with red blood cells at different pH from pH5.5 to pH 6.5. Data were represented as mean ±SD (n = 3). Statistical analysis was performed by student-t’s test, *; p < 0.05.
