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Influence of pH on the visual appearance (a), mean diameter (b) and ζ-potential (c) of liposomes with different ratios of RL/CS. Samples denoted by different capital case letters (A–C) were significantly different (p < 0.05) when compared between different pH (same RL/CS ratios and storage time). Samples denoted by lowercase letters (a–c) were significantly different (p < 0.05) when compared between different RL/CS ratios and storage times (same pH).
